From ca0fd7a31b724d06ba4eca203bfeda9e38c5e767 Mon Sep 17 00:00:00 2001
From: BlackDex <black.dex@gmail.com>
Date: Mon, 13 Sep 2021 12:00:52 +0200
Subject: [PATCH] Optimize release workflow.

- Split Debian and Alpine into different build matrix
  This starts building both Debian and Alpine based images at the same time
- Make use of Docker BuildKit, which improves speed also.
- Use BuildKit caching for Rust Cargo across docker images.
  This prevents downloading the same crates multiple times.
- Use Github Actions Services to start a docker registry, starting it
via the build script sometimes caused issues.
- Updated the Build workflow to use Ubuntu 20.04 which is more close to
the Bullseye Debian release regarding package versions.
---
 .github/workflows/build.yml           |  45 ++-----
 .github/workflows/hadolint.yml        |   2 +-
 .github/workflows/release.yml         |  28 +++--
 docker/Dockerfile.j2                  | 109 ++++++++++-------
 docker/Makefile                       |   6 +
 docker/amd64/Dockerfile               |  26 ++--
 docker/amd64/Dockerfile.alpine        |  16 ++-
 docker/amd64/Dockerfile.buildx        | 126 +++++++++++++++++++
 docker/amd64/Dockerfile.buildx.alpine | 118 ++++++++++++++++++
 docker/arm64/Dockerfile               |  75 +++++++-----
 docker/arm64/Dockerfile.buildx        | 169 ++++++++++++++++++++++++++
 docker/armv6/Dockerfile               |  75 +++++++-----
 docker/armv6/Dockerfile.buildx        | 169 ++++++++++++++++++++++++++
 docker/armv7/Dockerfile               |  75 +++++++-----
 docker/armv7/Dockerfile.alpine        |  16 ++-
 docker/armv7/Dockerfile.buildx        | 169 ++++++++++++++++++++++++++
 docker/armv7/Dockerfile.buildx.alpine | 125 +++++++++++++++++++
 hooks/build                           |   7 +-
 hooks/push                            |   7 +-
 19 files changed, 1170 insertions(+), 193 deletions(-)
 create mode 100644 docker/amd64/Dockerfile.buildx
 create mode 100644 docker/amd64/Dockerfile.buildx.alpine
 create mode 100644 docker/arm64/Dockerfile.buildx
 create mode 100644 docker/armv6/Dockerfile.buildx
 create mode 100644 docker/armv7/Dockerfile.buildx
 create mode 100644 docker/armv7/Dockerfile.buildx.alpine

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0f80b950..f92e6e54 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,30 +31,22 @@ jobs:
       matrix:
         channel:
           - nightly
-          # - stable
         target-triple:
           - x86_64-unknown-linux-gnu
-          # - x86_64-unknown-linux-musl
         include:
           - target-triple: x86_64-unknown-linux-gnu
             host-triple: x86_64-unknown-linux-gnu
             features: [sqlite,mysql,postgresql] # Remember to update the `cargo test` to match the amount of features
             channel: nightly
-            os: ubuntu-18.04
+            os: ubuntu-20.04
             ext: ""
-          # - target-triple: x86_64-unknown-linux-gnu
-          #   host-triple: x86_64-unknown-linux-gnu
-          #   features: "sqlite,mysql,postgresql"
-          #   channel: stable
-          #   os: ubuntu-18.04
-          #   ext: ""
 
     name: Building ${{ matrix.channel }}-${{ matrix.target-triple }}
     runs-on: ${{ matrix.os }}
     steps:
       # Checkout the repo
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
       # End Checkout the repo
 
 
@@ -73,13 +65,13 @@ jobs:
 
 
       # Enable Rust Caching
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@842ef286fff290e445b90b4002cc9807c3669641 # v1.3.0
       # End Enable Rust Caching
 
 
       # Uses the rust-toolchain file to determine version
       - name: 'Install ${{ matrix.channel }}-${{ matrix.host-triple }} for target: ${{ matrix.target-triple }}'
-        uses: actions-rs/toolchain@v1
+        uses: actions-rs/toolchain@b2417cde72dcf67f306c0ae8e0828a81bf0b189f # v1.0.6
         with:
           profile: minimal
           target: ${{ matrix.target-triple }}
@@ -90,28 +82,28 @@ jobs:
       # Run cargo tests (In release mode to speed up future builds)
       # First test all features together, afterwards test them separately.
       - name: "`cargo test --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: test
           args: --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }}
       # Test single features
       # 0: sqlite
       - name: "`cargo test --release --features ${{ matrix.features[0] }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: test
           args: --release --features ${{ matrix.features[0] }} --target ${{ matrix.target-triple }}
         if: ${{ matrix.features[0] != '' }}
       # 1: mysql
       - name: "`cargo test --release --features ${{ matrix.features[1] }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: test
           args: --release --features ${{ matrix.features[1] }} --target ${{ matrix.target-triple }}
         if: ${{ matrix.features[1] != '' }}
       # 2: postgresql
       - name: "`cargo test --release --features ${{ matrix.features[2] }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: test
           args: --release --features ${{ matrix.features[2] }} --target ${{ matrix.target-triple }}
@@ -121,7 +113,7 @@ jobs:
 
       # Run cargo clippy, and fail on warnings (In release mode to speed up future builds)
       - name: "`cargo clippy --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: clippy
           args: --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }} -- -D warnings
@@ -130,7 +122,7 @@ jobs:
 
       # Run cargo fmt
       - name: '`cargo fmt`'
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: fmt
           args: --all -- --check
@@ -139,7 +131,7 @@ jobs:
 
       # Build the binary
       - name: "`cargo build --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }}`"
-        uses: actions-rs/cargo@v1
+        uses: actions-rs/cargo@ae10961054e4aa8b4aa7dffede299aaf087aa33b # v1.0.1
         with:
           command: build
           args: --release --features ${{ join(matrix.features, ',') }} --target ${{ matrix.target-triple }}
@@ -148,21 +140,8 @@ jobs:
 
       # Upload artifact to Github Actions
       - name: Upload artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@27121b0bdffd731efa15d66772be8dc71245d074 # v2.2.4
         with:
           name: vaultwarden-${{ matrix.target-triple }}${{ matrix.ext }}
           path: target/${{ matrix.target-triple }}/release/vaultwarden${{ matrix.ext }}
       # End Upload artifact to Github Actions
-
-
-      ## This is not used at the moment
-      ## We could start using this when we can build static binaries
-      # Upload to github actions release
-      # - name: Release
-      #   uses: Shopify/upload-to-release@1
-      #   if: startsWith(github.ref, 'refs/tags/')
-      #   with:
-      #     name: vaultwarden-${{ matrix.target-triple }}${{ matrix.ext }}
-      #     path: target/${{ matrix.target-triple }}/release/vaultwarden${{ matrix.ext }}
-      #     repo-token: ${{ secrets.GITHUB_TOKEN }}
-      # End Upload to github actions release
diff --git a/.github/workflows/hadolint.yml b/.github/workflows/hadolint.yml
index 3a766c89..375e437a 100644
--- a/.github/workflows/hadolint.yml
+++ b/.github/workflows/hadolint.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       # Checkout the repo
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
       # End Checkout the repo
 
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3e8b9607..4b425c01 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -31,7 +31,7 @@ jobs:
     steps:
       - name: Skip Duplicates Actions
         id: skip_check
-        uses: fkirc/skip-duplicate-actions@master
+        uses: fkirc/skip-duplicate-actions@f75dd6564bb646f95277dc8c3b80612e46a4a1ea # v3.4.1
         with:
           cancel_others: 'true'
         # Only run this when not creating a tag
@@ -40,23 +40,33 @@ jobs:
   docker-build:
     runs-on: ubuntu-latest
     needs: skip_check
-    if: ${{ needs.skip_check.outputs.should_skip != 'true' }}
+    # Start a local docker registry to be used to generate multi-arch images.
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
     env:
-      # DOCKER_BUILDKIT: 1 # Disabled for now, but we should look at this because it will speedup building!
+      DOCKER_BUILDKIT: 1 # Disabled for now, but we should look at this because it will speedup building!
       # DOCKER_REPO/secrets.DOCKERHUB_REPO needs to be 'index.docker.io/<user>/<repo>'
       DOCKER_REPO: ${{ secrets.DOCKERHUB_REPO }}
       SOURCE_COMMIT: ${{ github.sha }}
       SOURCE_REPOSITORY_URL: "https://github.com/${{ github.repository }}"
+    if: ${{ needs.skip_check.outputs.should_skip != 'true' && github.repository == 'dani-garcia/vaultwarden' }}
+    strategy:
+      matrix:
+        base_image: ["debian","alpine"]
+
     steps:
       # Checkout the repo
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
         with:
           fetch-depth: 0
 
       # Login to Docker Hub
       - name: Login to Docker Hub
-        uses: docker/login-action@v1
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9 # v1.10.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -79,16 +89,18 @@ jobs:
       - name: Build Debian based images
         shell: bash
         env:
-          DOCKER_TAG: ${{steps.vars.outputs.DOCKER_TAG}}
+          DOCKER_TAG: "${{steps.vars.outputs.DOCKER_TAG}}"
         run: |
           ./hooks/build
+        if: ${{ matrix.base_image == 'debian' }}
 
       - name: Push Debian based images
         shell: bash
         env:
-          DOCKER_TAG: ${{steps.vars.outputs.DOCKER_TAG}}
+          DOCKER_TAG: "${{steps.vars.outputs.DOCKER_TAG}}"
         run: |
           ./hooks/push
+        if: ${{ matrix.base_image == 'debian' }}
 
       - name: Build Alpine based images
         shell: bash
@@ -96,6 +108,7 @@ jobs:
           DOCKER_TAG: "${{steps.vars.outputs.DOCKER_TAG}}-alpine"
         run: |
           ./hooks/build
+        if: ${{ matrix.base_image == 'alpine' }}
 
       - name: Push Alpine based images
         shell: bash
@@ -103,3 +116,4 @@ jobs:
           DOCKER_TAG: "${{steps.vars.outputs.DOCKER_TAG}}-alpine"
         run: |
           ./hooks/push
+        if: ${{ matrix.base_image == 'alpine' }}
diff --git a/docker/Dockerfile.j2 b/docker/Dockerfile.j2
index 1fc83996..2a849a5b 100644
--- a/docker/Dockerfile.j2
+++ b/docker/Dockerfile.j2
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -40,6 +42,11 @@
 {% else %}
 {%   set package_arch_target_param = "" %}
 {% endif %}
+{% if "buildx" in target_file %}
+{%   set mount_rust_cache = "--mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry " %}
+{% else %}
+{%   set mount_rust_cache = "" %}
+{% endif %}
 # Using multistage build:
 # 	https://docs.docker.com/develop/develop-images/multistage-build/
 # 	https://whitfin.io/speeding-up-rust-docker-builds/
@@ -86,22 +93,39 @@ ARG DB=sqlite,mysql,postgresql
 {% endif %}
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
+{# {% if "alpine" not in target_file and "buildx" in target_file %}
+# Debian based Buildx builds can use some special apt caching to speedup building.
+# By default Debian based images have some rules to keep docker builds clean, we need to remove this.
+# See: https://hub.docker.com/r/docker/dockerfile
+RUN rm -f /etc/apt/apt.conf.d/docker-clean; echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache
+{% endif %} #}
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN {{ mount_rust_cache -}} mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
 
 {% if "alpine" in target_file %}
-ENV USER "root"
 ENV RUSTFLAGS='-C link-arg=-s'
 {%   if "armv7" in target_file %}
 ENV CFLAGS_armv7_unknown_linux_musleabihf="-mfpu=vfpv3-d16"
 {%   endif %}
 {% elif "arm" in target_file %}
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the {{ package_arch_prefix }} version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
 # Install required build libs for {{ package_arch_name }} architecture.
 # To compile both mysql and postgresql we need some extra packages for both host arch and target arch
-RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
-        /etc/apt/sources.list.d/deb-src.list \
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
     && dpkg --add-architecture {{ package_arch_name }} \
     && apt-get update \
     && apt-get install -y \
@@ -110,24 +134,43 @@ RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
         libc6-dev{{ package_arch_prefix }} \
         libpq5{{ package_arch_prefix }} \
         libpq-dev \
+        libmariadb3:amd64 \
         libmariadb-dev{{ package_arch_prefix }} \
         libmariadb-dev-compat{{ package_arch_prefix }} \
         gcc-{{ package_cross_compiler }} \
-    && mkdir -p ~/.cargo \
-    && echo '[target.{{ package_arch_target }}]' >> ~/.cargo/config \
-    && echo 'linker = "{{ package_cross_compiler }}-gcc"' >> ~/.cargo/config \
-    && echo 'rustflags = ["-L/usr/lib/{{ package_cross_compiler }}"]' >> ~/.cargo/config
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5{{ package_arch_prefix }} package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/{{ package_cross_compiler }}/libpq.so.5 /usr/lib/{{ package_cross_compiler }}/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.{{ package_arch_target }}]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "{{ package_cross_compiler }}-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/{{ package_cross_compiler }}"]' >> "${CARGO_HOME}/config"
 
-ENV CARGO_HOME "/root/.cargo"
-ENV USER "root"
-{% endif -%}
+# Set arm specific environment values
+ENV CC_{{ package_arch_target | replace("-", "_") }}="/usr/bin/{{ package_cross_compiler }}-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/{{ package_cross_compiler }}"
+ENV OPENSSL_LIB_DIR="/usr/lib/{{ package_cross_compiler }}"
 
-{% if "amd64" in target_file and "alpine" not in target_file %}
+{% elif "amd64" in target_file %}
 # Install DB packages
-RUN apt-get update && apt-get install -y \
-    --no-install-recommends \
-    libmariadb-dev{{ package_arch_prefix }} \
-    libpq-dev{{ package_arch_prefix }} \
+RUN apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libmariadb-dev{{ package_arch_prefix }} \
+        libpq-dev{{ package_arch_prefix }} \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 {% endif %}
 
@@ -140,37 +183,14 @@ COPY ./Cargo.* ./
 COPY ./rust-toolchain ./rust-toolchain
 COPY ./build.rs ./build.rs
 
-{% if "alpine" not in target_file %}
-{%   if "arm" in target_file %}
-# NOTE: This should be the last apt-get/dpkg for this stage, since after this it will fail because of broken dependencies.
-# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
-# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
-# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the {{ package_arch_prefix }} version.
-# What we can do is a force install, because nothing important is overlapping each other.
-RUN apt-get install -y --no-install-recommends libmariadb3:amd64 \
-    && apt-get download libmariadb-dev-compat:amd64 \
-    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
-    && rm -rvf ./libmariadb-dev-compat*.deb \
-    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
-    # The libpq5{{ package_arch_prefix }} package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
-    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
-    # Without this specific file the ld command will fail and compilation fails with it.
-    && ln -sfnr /usr/lib/{{ package_cross_compiler }}/libpq.so.5 /usr/lib/{{ package_cross_compiler }}/libpq.so
-
-ENV CC_{{ package_arch_target | replace("-", "_") }}="/usr/bin/{{ package_cross_compiler }}-gcc"
-ENV CROSS_COMPILE="1"
-ENV OPENSSL_INCLUDE_DIR="/usr/include/{{ package_cross_compiler }}"
-ENV OPENSSL_LIB_DIR="/usr/lib/{{ package_cross_compiler }}"
-{%   endif -%}
-{% endif %}
 {% if package_arch_target is defined %}
-RUN rustup target add {{ package_arch_target }}
+RUN {{ mount_rust_cache -}} rustup target add {{ package_arch_target }}
 {% endif %}
 
 # Builds your dependencies and removes the
 # dummy project, except the target folder
 # This folder contains the compiled dependencies
-RUN cargo build --features ${DB} --release{{ package_arch_target_param }} \
+RUN {{ mount_rust_cache -}} cargo build --features ${DB} --release{{ package_arch_target_param }} \
     && find . -not -path "./target*" -delete
 
 # Copies the complete project
@@ -182,7 +202,7 @@ RUN touch src/main.rs
 
 # Builds again, this time it'll just be
 # your actual source files being built
-RUN cargo build --features ${DB} --release{{ package_arch_target_param }}
+RUN {{ mount_rust_cache -}} cargo build --features ${DB} --release{{ package_arch_target_param }}
 {% if "alpine" in target_file %}
 {%   if "armv7" in target_file %}
 # hadolint ignore=DL3059
@@ -231,6 +251,7 @@ RUN mkdir /data \
     dumb-init \
     libmariadb-dev-compat \
     libpq5 \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 {% endif %}
 
diff --git a/docker/Makefile b/docker/Makefile
index 86b3b64c..8c939cba 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -7,3 +7,9 @@ all: $(OBJECTS)
 
 %/Dockerfile.alpine: Dockerfile.j2 render_template
 	./render_template "$<" "{\"target_file\":\"$@\"}" > "$@"
+
+%/Dockerfile.buildx: Dockerfile.j2 render_template
+	./render_template "$<" "{\"target_file\":\"$@\"}" > "$@"
+
+%/Dockerfile.buildx.alpine: Dockerfile.j2 render_template
+	./render_template "$<" "{\"target_file\":\"$@\"}" > "$@"
diff --git a/docker/amd64/Dockerfile b/docker/amd64/Dockerfile
index 8f448ccc..6769ef4f 100644
--- a/docker/amd64/Dockerfile
+++ b/docker/amd64/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -31,16 +33,25 @@ FROM rust:1.54-bullseye as build
 ARG DB=sqlite,mysql,postgresql
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
 
 # Install DB packages
-RUN apt-get update && apt-get install -y \
-    --no-install-recommends \
-    libmariadb-dev \
-    libpq-dev \
+RUN apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libmariadb-dev \
+        libpq-dev \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # Creates a dummy project used to grab dependencies
@@ -90,6 +101,7 @@ RUN mkdir /data \
     dumb-init \
     libmariadb-dev-compat \
     libpq5 \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 
diff --git a/docker/amd64/Dockerfile.alpine b/docker/amd64/Dockerfile.alpine
index 64963b99..9ac4dc38 100644
--- a/docker/amd64/Dockerfile.alpine
+++ b/docker/amd64/Dockerfile.alpine
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -31,12 +33,18 @@ FROM clux/muslrust:nightly-2021-08-22 as build
 ARG DB=sqlite,postgresql
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
 
-ENV USER "root"
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
 ENV RUSTFLAGS='-C link-arg=-s'
 
 # Creates a dummy project used to grab dependencies
diff --git a/docker/amd64/Dockerfile.buildx b/docker/amd64/Dockerfile.buildx
new file mode 100644
index 00000000..a4aa826a
--- /dev/null
+++ b/docker/amd64/Dockerfile.buildx
@@ -0,0 +1,126 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM rust:1.54-bullseye as build
+
+# Debian-based builds support multidb
+ARG DB=sqlite,mysql,postgresql
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# Install DB packages
+RUN apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libmariadb-dev \
+        libpq-dev \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM debian:bullseye-slim
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apt-get update && apt-get install -y \
+    --no-install-recommends \
+    openssl \
+    ca-certificates \
+    curl \
+    dumb-init \
+    libmariadb-dev-compat \
+    libpq5 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/docker/amd64/Dockerfile.buildx.alpine b/docker/amd64/Dockerfile.buildx.alpine
new file mode 100644
index 00000000..ca666c1a
--- /dev/null
+++ b/docker/amd64/Dockerfile.buildx.alpine
@@ -0,0 +1,118 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM clux/muslrust:nightly-2021-08-22 as build
+
+# Alpine-based AMD64 (musl) does not support mysql/mariadb during compile time.
+ARG DB=sqlite,postgresql
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+ENV RUSTFLAGS='-C link-arg=-s'
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry rustup target add x86_64-unknown-linux-musl
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=x86_64-unknown-linux-musl \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=x86_64-unknown-linux-musl
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM alpine:3.14
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+ENV SSL_CERT_DIR=/etc/ssl/certs
+
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apk add --no-cache \
+        openssl \
+        tzdata \
+        curl \
+        dumb-init \
+        postgresql-libs \
+        ca-certificates
+
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/x86_64-unknown-linux-musl/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/docker/arm64/Dockerfile b/docker/arm64/Dockerfile
index ddda4f98..3e019ba6 100644
--- a/docker/arm64/Dockerfile
+++ b/docker/arm64/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -31,15 +33,27 @@ FROM rust:1.54-bullseye as build
 ARG DB=sqlite,mysql,postgresql
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
 
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :arm64 version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
 # Install required build libs for arm64 architecture.
 # To compile both mysql and postgresql we need some extra packages for both host arch and target arch
-RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
-        /etc/apt/sources.list.d/deb-src.list \
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
     && dpkg --add-architecture arm64 \
     && apt-get update \
     && apt-get install -y \
@@ -48,16 +62,35 @@ RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
         libc6-dev:arm64 \
         libpq5:arm64 \
         libpq-dev \
+        libmariadb3:amd64 \
         libmariadb-dev:arm64 \
         libmariadb-dev-compat:arm64 \
         gcc-aarch64-linux-gnu \
-    && mkdir -p ~/.cargo \
-    && echo '[target.aarch64-unknown-linux-gnu]' >> ~/.cargo/config \
-    && echo 'linker = "aarch64-linux-gnu-gcc"' >> ~/.cargo/config \
-    && echo 'rustflags = ["-L/usr/lib/aarch64-linux-gnu"]' >> ~/.cargo/config
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:arm64 package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/aarch64-linux-gnu/libpq.so.5 /usr/lib/aarch64-linux-gnu/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.aarch64-unknown-linux-gnu]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "aarch64-linux-gnu-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/aarch64-linux-gnu"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_aarch64_unknown_linux_gnu="/usr/bin/aarch64-linux-gnu-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/aarch64-linux-gnu"
+ENV OPENSSL_LIB_DIR="/usr/lib/aarch64-linux-gnu"
 
-ENV CARGO_HOME "/root/.cargo"
-ENV USER "root"
 
 # Creates a dummy project used to grab dependencies
 RUN USER=root cargo new --bin /app
@@ -68,25 +101,6 @@ COPY ./Cargo.* ./
 COPY ./rust-toolchain ./rust-toolchain
 COPY ./build.rs ./build.rs
 
-# NOTE: This should be the last apt-get/dpkg for this stage, since after this it will fail because of broken dependencies.
-# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
-# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
-# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :arm64 version.
-# What we can do is a force install, because nothing important is overlapping each other.
-RUN apt-get install -y --no-install-recommends libmariadb3:amd64 \
-    && apt-get download libmariadb-dev-compat:amd64 \
-    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
-    && rm -rvf ./libmariadb-dev-compat*.deb \
-    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
-    # The libpq5:arm64 package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
-    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
-    # Without this specific file the ld command will fail and compilation fails with it.
-    && ln -sfnr /usr/lib/aarch64-linux-gnu/libpq.so.5 /usr/lib/aarch64-linux-gnu/libpq.so
-
-ENV CC_aarch64_unknown_linux_gnu="/usr/bin/aarch64-linux-gnu-gcc"
-ENV CROSS_COMPILE="1"
-ENV OPENSSL_INCLUDE_DIR="/usr/include/aarch64-linux-gnu"
-ENV OPENSSL_LIB_DIR="/usr/lib/aarch64-linux-gnu"
 RUN rustup target add aarch64-unknown-linux-gnu
 
 # Builds your dependencies and removes the
@@ -128,6 +142,7 @@ RUN mkdir /data \
     dumb-init \
     libmariadb-dev-compat \
     libpq5 \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # hadolint ignore=DL3059
diff --git a/docker/arm64/Dockerfile.buildx b/docker/arm64/Dockerfile.buildx
new file mode 100644
index 00000000..afbdd46d
--- /dev/null
+++ b/docker/arm64/Dockerfile.buildx
@@ -0,0 +1,169 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM rust:1.54-bullseye as build
+
+# Debian-based builds support multidb
+ARG DB=sqlite,mysql,postgresql
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :arm64 version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
+# Install required build libs for arm64 architecture.
+# To compile both mysql and postgresql we need some extra packages for both host arch and target arch
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
+    && dpkg --add-architecture arm64 \
+    && apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libssl-dev:arm64 \
+        libc6-dev:arm64 \
+        libpq5:arm64 \
+        libpq-dev \
+        libmariadb3:amd64 \
+        libmariadb-dev:arm64 \
+        libmariadb-dev-compat:arm64 \
+        gcc-aarch64-linux-gnu \
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:arm64 package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/aarch64-linux-gnu/libpq.so.5 /usr/lib/aarch64-linux-gnu/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.aarch64-unknown-linux-gnu]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "aarch64-linux-gnu-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/aarch64-linux-gnu"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_aarch64_unknown_linux_gnu="/usr/bin/aarch64-linux-gnu-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/aarch64-linux-gnu"
+ENV OPENSSL_LIB_DIR="/usr/lib/aarch64-linux-gnu"
+
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry rustup target add aarch64-unknown-linux-gnu
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=aarch64-unknown-linux-gnu \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=aarch64-unknown-linux-gnu
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM balenalib/aarch64-debian:bullseye
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-start" ]
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apt-get update && apt-get install -y \
+    --no-install-recommends \
+    openssl \
+    ca-certificates \
+    curl \
+    dumb-init \
+    libmariadb-dev-compat \
+    libpq5 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-end" ]
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/aarch64-unknown-linux-gnu/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/docker/armv6/Dockerfile b/docker/armv6/Dockerfile
index 1935517f..a5d1693b 100644
--- a/docker/armv6/Dockerfile
+++ b/docker/armv6/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -31,15 +33,27 @@ FROM rust:1.54-bullseye as build
 ARG DB=sqlite,mysql,postgresql
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
 
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armel version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
 # Install required build libs for armel architecture.
 # To compile both mysql and postgresql we need some extra packages for both host arch and target arch
-RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
-        /etc/apt/sources.list.d/deb-src.list \
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
     && dpkg --add-architecture armel \
     && apt-get update \
     && apt-get install -y \
@@ -48,16 +62,35 @@ RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
         libc6-dev:armel \
         libpq5:armel \
         libpq-dev \
+        libmariadb3:amd64 \
         libmariadb-dev:armel \
         libmariadb-dev-compat:armel \
         gcc-arm-linux-gnueabi \
-    && mkdir -p ~/.cargo \
-    && echo '[target.arm-unknown-linux-gnueabi]' >> ~/.cargo/config \
-    && echo 'linker = "arm-linux-gnueabi-gcc"' >> ~/.cargo/config \
-    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabi"]' >> ~/.cargo/config
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:armel package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/arm-linux-gnueabi/libpq.so.5 /usr/lib/arm-linux-gnueabi/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.arm-unknown-linux-gnueabi]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "arm-linux-gnueabi-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabi"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_arm_unknown_linux_gnueabi="/usr/bin/arm-linux-gnueabi-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabi"
+ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabi"
 
-ENV CARGO_HOME "/root/.cargo"
-ENV USER "root"
 
 # Creates a dummy project used to grab dependencies
 RUN USER=root cargo new --bin /app
@@ -68,25 +101,6 @@ COPY ./Cargo.* ./
 COPY ./rust-toolchain ./rust-toolchain
 COPY ./build.rs ./build.rs
 
-# NOTE: This should be the last apt-get/dpkg for this stage, since after this it will fail because of broken dependencies.
-# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
-# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
-# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armel version.
-# What we can do is a force install, because nothing important is overlapping each other.
-RUN apt-get install -y --no-install-recommends libmariadb3:amd64 \
-    && apt-get download libmariadb-dev-compat:amd64 \
-    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
-    && rm -rvf ./libmariadb-dev-compat*.deb \
-    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
-    # The libpq5:armel package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
-    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
-    # Without this specific file the ld command will fail and compilation fails with it.
-    && ln -sfnr /usr/lib/arm-linux-gnueabi/libpq.so.5 /usr/lib/arm-linux-gnueabi/libpq.so
-
-ENV CC_arm_unknown_linux_gnueabi="/usr/bin/arm-linux-gnueabi-gcc"
-ENV CROSS_COMPILE="1"
-ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabi"
-ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabi"
 RUN rustup target add arm-unknown-linux-gnueabi
 
 # Builds your dependencies and removes the
@@ -128,6 +142,7 @@ RUN mkdir /data \
     dumb-init \
     libmariadb-dev-compat \
     libpq5 \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # hadolint ignore=DL3059
diff --git a/docker/armv6/Dockerfile.buildx b/docker/armv6/Dockerfile.buildx
new file mode 100644
index 00000000..5d7dc057
--- /dev/null
+++ b/docker/armv6/Dockerfile.buildx
@@ -0,0 +1,169 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM rust:1.54-bullseye as build
+
+# Debian-based builds support multidb
+ARG DB=sqlite,mysql,postgresql
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armel version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
+# Install required build libs for armel architecture.
+# To compile both mysql and postgresql we need some extra packages for both host arch and target arch
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
+    && dpkg --add-architecture armel \
+    && apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libssl-dev:armel \
+        libc6-dev:armel \
+        libpq5:armel \
+        libpq-dev \
+        libmariadb3:amd64 \
+        libmariadb-dev:armel \
+        libmariadb-dev-compat:armel \
+        gcc-arm-linux-gnueabi \
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:armel package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/arm-linux-gnueabi/libpq.so.5 /usr/lib/arm-linux-gnueabi/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.arm-unknown-linux-gnueabi]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "arm-linux-gnueabi-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabi"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_arm_unknown_linux_gnueabi="/usr/bin/arm-linux-gnueabi-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabi"
+ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabi"
+
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry rustup target add arm-unknown-linux-gnueabi
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=arm-unknown-linux-gnueabi \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=arm-unknown-linux-gnueabi
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM balenalib/rpi-debian:bullseye
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-start" ]
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apt-get update && apt-get install -y \
+    --no-install-recommends \
+    openssl \
+    ca-certificates \
+    curl \
+    dumb-init \
+    libmariadb-dev-compat \
+    libpq5 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-end" ]
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/arm-unknown-linux-gnueabi/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile b/docker/armv7/Dockerfile
index 9172b90e..9a168f65 100644
--- a/docker/armv7/Dockerfile
+++ b/docker/armv7/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -31,15 +33,27 @@ FROM rust:1.54-bullseye as build
 ARG DB=sqlite,mysql,postgresql
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
 
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armhf version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
 # Install required build libs for armhf architecture.
 # To compile both mysql and postgresql we need some extra packages for both host arch and target arch
-RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
-        /etc/apt/sources.list.d/deb-src.list \
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
     && dpkg --add-architecture armhf \
     && apt-get update \
     && apt-get install -y \
@@ -48,16 +62,35 @@ RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
         libc6-dev:armhf \
         libpq5:armhf \
         libpq-dev \
+        libmariadb3:amd64 \
         libmariadb-dev:armhf \
         libmariadb-dev-compat:armhf \
         gcc-arm-linux-gnueabihf \
-    && mkdir -p ~/.cargo \
-    && echo '[target.armv7-unknown-linux-gnueabihf]' >> ~/.cargo/config \
-    && echo 'linker = "arm-linux-gnueabihf-gcc"' >> ~/.cargo/config \
-    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabihf"]' >> ~/.cargo/config
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:armhf package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/arm-linux-gnueabihf/libpq.so.5 /usr/lib/arm-linux-gnueabihf/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.armv7-unknown-linux-gnueabihf]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "arm-linux-gnueabihf-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabihf"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_armv7_unknown_linux_gnueabihf="/usr/bin/arm-linux-gnueabihf-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabihf"
+ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabihf"
 
-ENV CARGO_HOME "/root/.cargo"
-ENV USER "root"
 
 # Creates a dummy project used to grab dependencies
 RUN USER=root cargo new --bin /app
@@ -68,25 +101,6 @@ COPY ./Cargo.* ./
 COPY ./rust-toolchain ./rust-toolchain
 COPY ./build.rs ./build.rs
 
-# NOTE: This should be the last apt-get/dpkg for this stage, since after this it will fail because of broken dependencies.
-# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
-# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
-# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armhf version.
-# What we can do is a force install, because nothing important is overlapping each other.
-RUN apt-get install -y --no-install-recommends libmariadb3:amd64 \
-    && apt-get download libmariadb-dev-compat:amd64 \
-    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
-    && rm -rvf ./libmariadb-dev-compat*.deb \
-    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
-    # The libpq5:armhf package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
-    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
-    # Without this specific file the ld command will fail and compilation fails with it.
-    && ln -sfnr /usr/lib/arm-linux-gnueabihf/libpq.so.5 /usr/lib/arm-linux-gnueabihf/libpq.so
-
-ENV CC_armv7_unknown_linux_gnueabihf="/usr/bin/arm-linux-gnueabihf-gcc"
-ENV CROSS_COMPILE="1"
-ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabihf"
-ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabihf"
 RUN rustup target add armv7-unknown-linux-gnueabihf
 
 # Builds your dependencies and removes the
@@ -128,6 +142,7 @@ RUN mkdir /data \
     dumb-init \
     libmariadb-dev-compat \
     libpq5 \
+    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
 # hadolint ignore=DL3059
diff --git a/docker/armv7/Dockerfile.alpine b/docker/armv7/Dockerfile.alpine
index a6ca1582..f78168cf 100644
--- a/docker/armv7/Dockerfile.alpine
+++ b/docker/armv7/Dockerfile.alpine
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 # This file was generated using a Jinja2 template.
 # Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
 
@@ -32,12 +34,18 @@ FROM messense/rust-musl-cross:armv7-musleabihf as build
 ARG DB=sqlite,vendored_openssl
 
 # Build time options to avoid dpkg warnings and help with reproducible builds.
-ENV DEBIAN_FRONTEND=noninteractive LANG=C.UTF-8 TZ=UTC TERM=xterm-256color
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
 
-# Don't download rust docs
-RUN rustup set profile minimal
 
-ENV USER "root"
+# Create CARGO_HOME folder and don't download rust docs
+RUN mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
 ENV RUSTFLAGS='-C link-arg=-s'
 ENV CFLAGS_armv7_unknown_linux_musleabihf="-mfpu=vfpv3-d16"
 
diff --git a/docker/armv7/Dockerfile.buildx b/docker/armv7/Dockerfile.buildx
new file mode 100644
index 00000000..938abd58
--- /dev/null
+++ b/docker/armv7/Dockerfile.buildx
@@ -0,0 +1,169 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM rust:1.54-bullseye as build
+
+# Debian-based builds support multidb
+ARG DB=sqlite,mysql,postgresql
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+# NOTE: Any apt-get/dpkg after this stage will fail because of broken dependencies.
+# For Diesel-RS migrations_macros to compile with MySQL/MariaDB we need to do some magic.
+# We at least need libmariadb3:amd64 installed for the x86_64 version of libmariadb.so (client)
+# We also need the libmariadb-dev-compat:amd64 but it can not be installed together with the :armhf version.
+# What we can do is a force install, because nothing important is overlapping each other.
+#
+# Install required build libs for armhf architecture.
+# To compile both mysql and postgresql we need some extra packages for both host arch and target arch
+RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > /etc/apt/sources.list.d/deb-src.list \
+    && dpkg --add-architecture armhf \
+    && apt-get update \
+    && apt-get install -y \
+        --no-install-recommends \
+        libssl-dev:armhf \
+        libc6-dev:armhf \
+        libpq5:armhf \
+        libpq-dev \
+        libmariadb3:amd64 \
+        libmariadb-dev:armhf \
+        libmariadb-dev-compat:armhf \
+        gcc-arm-linux-gnueabihf \
+    #
+    # Manual install libmariadb-dev-compat:amd64 ( After this broken dependencies will break apt )
+    && apt-get download libmariadb-dev-compat:amd64 \
+    && dpkg --force-all -i ./libmariadb-dev-compat*.deb \
+    && rm -rvf ./libmariadb-dev-compat*.deb \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    #
+    # For Diesel-RS migrations_macros to compile with PostgreSQL we need to do some magic.
+    # The libpq5:armhf package seems to not provide a symlink to libpq.so.5 with the name libpq.so.
+    # This is only provided by the libpq-dev package which can't be installed for both arch at the same time.
+    # Without this specific file the ld command will fail and compilation fails with it.
+    && ln -sfnr /usr/lib/arm-linux-gnueabihf/libpq.so.5 /usr/lib/arm-linux-gnueabihf/libpq.so \
+    #
+    # Make sure cargo has the right target config
+    && echo '[target.armv7-unknown-linux-gnueabihf]' >> "${CARGO_HOME}/config" \
+    && echo 'linker = "arm-linux-gnueabihf-gcc"' >> "${CARGO_HOME}/config" \
+    && echo 'rustflags = ["-L/usr/lib/arm-linux-gnueabihf"]' >> "${CARGO_HOME}/config"
+
+# Set arm specific environment values
+ENV CC_armv7_unknown_linux_gnueabihf="/usr/bin/arm-linux-gnueabihf-gcc"
+ENV CROSS_COMPILE="1"
+ENV OPENSSL_INCLUDE_DIR="/usr/include/arm-linux-gnueabihf"
+ENV OPENSSL_LIB_DIR="/usr/lib/arm-linux-gnueabihf"
+
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry rustup target add armv7-unknown-linux-gnueabihf
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=armv7-unknown-linux-gnueabihf \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=armv7-unknown-linux-gnueabihf
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM balenalib/armv7hf-debian:bullseye
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-start" ]
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apt-get update && apt-get install -y \
+    --no-install-recommends \
+    openssl \
+    ca-certificates \
+    curl \
+    dumb-init \
+    libmariadb-dev-compat \
+    libpq5 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-end" ]
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/armv7-unknown-linux-gnueabihf/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile.buildx.alpine b/docker/armv7/Dockerfile.buildx.alpine
new file mode 100644
index 00000000..8b72d1d3
--- /dev/null
+++ b/docker/armv7/Dockerfile.buildx.alpine
@@ -0,0 +1,125 @@
+# syntax=docker/dockerfile:1
+
+# This file was generated using a Jinja2 template.
+# Please make your changes in `Dockerfile.j2` and then `make` the individual Dockerfiles.
+
+# Using multistage build:
+# 	https://docs.docker.com/develop/develop-images/multistage-build/
+# 	https://whitfin.io/speeding-up-rust-docker-builds/
+####################### VAULT BUILD IMAGE  #######################
+# The web-vault digest specifies a particular web-vault build on Docker Hub.
+# Using the digest instead of the tag name provides better security,
+# as the digest of an image is immutable, whereas a tag name can later
+# be changed to point to a malicious image.
+#
+# To verify the current digest for a given tag name:
+# - From https://hub.docker.com/r/vaultwarden/web-vault/tags,
+#   click the tag name to view the digest of the image it currently points to.
+# - From the command line:
+#     $ docker pull vaultwarden/web-vault:v2.21.1
+#     $ docker image inspect --format "{{.RepoDigests}}" vaultwarden/web-vault:v2.21.1
+#     [vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5]
+#
+# - Conversely, to get the tag name from the digest:
+#     $ docker image inspect --format "{{.RepoTags}}" vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5
+#     [vaultwarden/web-vault:v2.21.1]
+#
+FROM vaultwarden/web-vault@sha256:29a4fa7bf3790fff9d908b02ac5a154913491f4bf30c95b87b06d8cf1c5516b5 as vault
+
+########################## BUILD IMAGE  ##########################
+FROM messense/rust-musl-cross:armv7-musleabihf as build
+
+# Alpine-based ARM (musl) only supports sqlite during compile time.
+# We now also need to add vendored_openssl, because the current base image we use to build has OpenSSL removed.
+ARG DB=sqlite,vendored_openssl
+
+# Build time options to avoid dpkg warnings and help with reproducible builds.
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=C.UTF-8 \
+    TZ=UTC \
+    TERM=xterm-256color \
+    CARGO_HOME="/root/.cargo" \
+    USER="root"
+
+
+# Create CARGO_HOME folder and don't download rust docs
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry mkdir -pv "${CARGO_HOME}" \
+    && rustup set profile minimal
+
+ENV RUSTFLAGS='-C link-arg=-s'
+ENV CFLAGS_armv7_unknown_linux_musleabihf="-mfpu=vfpv3-d16"
+
+# Creates a dummy project used to grab dependencies
+RUN USER=root cargo new --bin /app
+WORKDIR /app
+
+# Copies over *only* your manifests and build files
+COPY ./Cargo.* ./
+COPY ./rust-toolchain ./rust-toolchain
+COPY ./build.rs ./build.rs
+
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry rustup target add armv7-unknown-linux-musleabihf
+
+# Builds your dependencies and removes the
+# dummy project, except the target folder
+# This folder contains the compiled dependencies
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=armv7-unknown-linux-musleabihf \
+    && find . -not -path "./target*" -delete
+
+# Copies the complete project
+# To avoid copying unneeded files, use .dockerignore
+COPY . .
+
+# Make sure that we actually build the project
+RUN touch src/main.rs
+
+# Builds again, this time it'll just be
+# your actual source files being built
+RUN --mount=type=cache,target=/root/.cargo/git --mount=type=cache,target=/root/.cargo/registry cargo build --features ${DB} --release --target=armv7-unknown-linux-musleabihf
+# hadolint ignore=DL3059
+RUN musl-strip target/armv7-unknown-linux-musleabihf/release/vaultwarden
+
+######################## RUNTIME IMAGE  ########################
+# Create a new stage with a minimal image
+# because we already have a binary built
+FROM balenalib/armv7hf-alpine:3.14
+
+ENV ROCKET_ENV "staging"
+ENV ROCKET_PORT=80
+ENV ROCKET_WORKERS=10
+ENV SSL_CERT_DIR=/etc/ssl/certs
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-start" ]
+
+# Create data folder and Install needed libraries
+RUN mkdir /data \
+    && apk add --no-cache \
+        openssl \
+        tzdata \
+        curl \
+        dumb-init \
+        ca-certificates
+
+# hadolint ignore=DL3059
+RUN [ "cross-build-end" ]
+
+VOLUME /data
+EXPOSE 80
+EXPOSE 3012
+
+# Copies the files from the context (Rocket.toml file and web-vault)
+# and the binary from the "build" stage to the current stage
+WORKDIR /
+COPY Rocket.toml .
+COPY --from=vault /web-vault ./web-vault
+COPY --from=build /app/target/armv7-unknown-linux-musleabihf/release/vaultwarden .
+
+COPY docker/healthcheck.sh /healthcheck.sh
+COPY docker/start.sh /start.sh
+
+HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
+
+# Configures the startup!
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/start.sh"]
diff --git a/hooks/build b/hooks/build
index f18c58bf..96f04d15 100755
--- a/hooks/build
+++ b/hooks/build
@@ -34,12 +34,17 @@ for label in "${LABELS[@]}"; do
     LABEL_ARGS+=(--label "${label}")
 done
 
+# Check if DOCKER_BUILDKIT is set, if so, use the Dockerfile.buildx as template
+if [[ -n "${DOCKER_BUILDKIT}" ]]; then
+    buildx_suffix=.buildx
+fi
+
 set -ex
 
 for arch in "${arches[@]}"; do
     docker build \
            "${LABEL_ARGS[@]}" \
            -t "${DOCKER_REPO}:${DOCKER_TAG}-${arch}" \
-           -f docker/${arch}/Dockerfile${distro_suffix} \
+           -f docker/${arch}/Dockerfile${buildx_suffix}${distro_suffix} \
            .
 done
diff --git a/hooks/push b/hooks/push
index 4c690eb0..de8d24e8 100755
--- a/hooks/push
+++ b/hooks/push
@@ -10,7 +10,7 @@ join() { local IFS="$1"; shift; echo "$*"; }
 
 set -ex
 
-echo ">>> Starting local Docker registry..."
+echo ">>> Starting local Docker registry when needed..."
 
 # Docker Buildx's `docker-container` driver is needed for multi-platform
 # builds, but it can't access existing images on the Docker host (like the
@@ -28,7 +28,10 @@ echo ">>> Starting local Docker registry..."
 # First check if there already is a registry container running, else skip it.
 # This will only happen either locally or running it via Github Actions
 #
-docker start registry > /dev/null 2>&1 || docker run -d --name registry --network host registry:2 # defaults to port 5000
+if ! timeout 5 bash -c 'cat < /dev/null > /dev/tcp/localhost/5000'; then
+    # defaults to port 5000
+    docker run -d --name registry --network host registry:2
+fi
 
 # Docker Hub sets a `DOCKER_REPO` env var with the format `index.docker.io/user/repo`.
 # Strip the registry portion to construct a local repo path for use in `Dockerfile.buildx`.