FROM docker.io/library/debian:bookworm-slim as build ENV DEBIAN_FRONTEND=noninteractive ARG KEYCLOAK_VERSION SHELL ["/bin/bash", "-o", "pipefail", "-c"] RUN apt-get update \ && apt-get install -y ca-certificates curl wget \ && rm -rf /var/lib/apt/lists/* WORKDIR / RUN wget -c https://github.com/keycloak/keycloak/releases/download/${KEYCLOAK_VERSION}/keycloak-${KEYCLOAK_VERSION}.tar.gz -O - | tar -xz FROM docker.io/library/debian:bookworm-slim ENV DEBIAN_FRONTEND=noninteractive ARG KEYCLOAK_VERSION SHELL ["/bin/bash", "-o", "pipefail", "-c"] RUN apt-get update \ && apt-get install -y ca-certificates curl wget \ && rm -rf /var/lib/apt/lists/* ARG JAVA_URL ARG JAVA_VERSION ENV JAVA_VERSION=${JAVA_VERSION} RUN mkdir -p /opt/openjdk && cd /opt/openjdk \ && wget -c "${JAVA_URL}" -O - | tar -xz WORKDIR / COPY setup.sh /setup.sh COPY --from=build /keycloak-${KEYCLOAK_VERSION}/bin /opt/keycloak/bin CMD "/setup.sh"