Remove migration guide
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!!! warning
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Please be adviced that this guide is a first draft. mailcow: dockerized changed quite a lot on its DB configuration. It now uses the InnoDB file format `Barracuda` and the `utf8mb4` character set. There is also some change to the DB / TABLE structure.
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!!! info
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Also note that this guide doesn't touch on the users settings like *Spamlevels*, *TLS Settings*, etc. nor the export / import of your roundcube or SOGo settings.
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Lastly please check the section on how to [import / restore](u_e-backup_restore-maildir/#restore) your maildir backup to get an idea how to migrate your mails.
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## Create mailcow db backups
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First you need to modify the table `mailcow`. mailcow: dockerized adds three and moves two existing columns in the table `mailbox`. The columns `tls_enforce_in` and `tls_enforce_out` get moved two rows up (behind `domain`). The columns `key`, `multiple_bookings` and `wants_tagged_subject` need to be added after `tls_enforce_out`.
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It should look like this:
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```
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MariaDB [mailcow]> desc mailbox;
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+----------------------+--------------+------+-----+-------------------+-----------------------------+
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| Field | Type | Null | Key | Default | Extra |
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+----------------------+--------------+------+-----+-------------------+-----------------------------+
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| username | varchar(255) | NO | PRI | NULL | |
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| password | varchar(255) | NO | | NULL | |
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| name | varchar(255) | YES | | NULL | |
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| maildir | varchar(255) | NO | | NULL | |
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| quota | bigint(20) | NO | | 0 | |
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| local_part | varchar(255) | NO | | NULL | |
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| domain | varchar(255) | NO | MUL | NULL | |
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| tls_enforce_in | tinyint(1) | NO | | 0 | |
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| tls_enforce_out | tinyint(1) | NO | | 0 | |
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| kind | varchar(100) | NO | | | |
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| multiple_bookings | tinyint(1) | NO | | 0 | |
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| wants_tagged_subject | tinyint(1) | NO | | 0 | |
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| created | datetime | NO | | CURRENT_TIMESTAMP | |
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| modified | datetime | YES | | NULL | on update CURRENT_TIMESTAMP |
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| active | tinyint(1) | NO | | 1 | |
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+----------------------+--------------+------+-----+-------------------+-----------------------------+
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```
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You can do this with a UI like [Adminer](https://www.adminer.org/#download) or use the MySQL CLI like :
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```
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MariaDB [mailcow]> ALTER TABLE mailbox MODIFY COLUMN tls_enforce_in TINYINT(1) NOT NULL DEFAULT '0' AFTER domain,
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MODIFY COLUMN tls_enforce_out TINYINT(1) NOT NULL DEFAULT '0' AFTER tls_enforce_in;
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MariaDB [mailcow]> ALTER TABLE mailbox ADD COLUMN `kind` VARCHAR(255) NOT NULL AFTER `tls_enforce_out`,
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ADD COLUMN `multiple_bookings` TINYINT(1) NOT NULL DEFAULT '0' AFTER `kind`,
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ADD COLUMN `wants_tagged_subject` TINYINT(1) NOT NULL DEFAULT '0' AFTER `multiple_bookings`;
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MariaDB [mailcow]> DESC mailbox;
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```
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When this is done we can backup the tables:
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```bash
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# Load your mysql variables into environment
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DBHOST=$(grep database_host /var/www/mail/inc/vars.inc.php | cut -d'"' -f2)
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DBNAME=$(grep database_name /var/www/mail/inc/vars.inc.php | cut -d'"' -f2)
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DBUSER=$(grep database_user /var/www/mail/inc/vars.inc.php | cut -d'"' -f2)
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DBPASS=$(grep database_pass /var/www/mail/inc/vars.inc.php | cut -d'"' -f2)
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# Backup your tables
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mysqldump --replace --no-create-info --default-character-set=utf8mb4 \
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--host ${DBHOST} -u${DBUSER} -p${DBPASS} ${DBNAME} \
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alias alias_domain domain domain_admins mailbox quota2 sender_acl > backup_mailcow.sql
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```
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!!! Info
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- **--replace**: Write `REPLACE` statements rather than `INSERT` statements
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- **--no-create-info**: Don't write `CREATE TABLE` statements.
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- **--default-character-set** make sure our exported default charset is *utf8mb4*.
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## Prepare mailcow: dockerized
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To initiate your fresh installed database, visit **https://${MAILCOW_HOSTNAME}** with a browser of your choice. Check if the DB is initiated correctly afterwards:
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```
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# source mailcow.conf
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# docker-compose exec mysql-mailcow mysql -u${DBUSER} -p${DBPASS} ${DBNAME}
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MariaDB [mailcow]> show tables;
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+-------------------------------+
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| Tables_in_mailcow |
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+-------------------------------+
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| admin |
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| alias |
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[...]
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```
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## Import your backups:
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```
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# source mailcow.conf
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# docker exec -i $(docker-compose ps -q mysql-mailcow) mysql -u${DBUSER} -p${DBPASS} ${DBNAME} < backup_mailcow.sql
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```
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Recalculate used quota with `doveadm`:
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```
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# docker-compose exec dovecot-mailcow doveadm quota recalc -A
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```
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Restart services:
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```
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# docker-compose restart
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```
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@ -21,7 +21,6 @@ pages:
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- 'Prerequisites':
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- 'Prepare Your System': 'prerequesite-system.md'
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- 'DNS Setup': 'prerequesite-dns.md'
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- 'Migrating from mailcow 0.14': 'migrate-mc014.md'
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- 'Installation & Update':
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- 'Installation': 'install.md'
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- 'Update': 'install-update.md'
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