docker: use containerd-snapshotter #739

lldap-db  | Error: in 18+, these Docker images are configured to store database data in a
lldap-db  |        format which is compatible with "pg_ctlcluster" (specifically, using
lldap-db  |        major-version-specific directory names).  This better reflects how
lldap-db  |        PostgreSQL itself works, and how upgrades are to be performed.
lldap-db  |
lldap-db  |        See also https://github.com/docker-library/postgres/pull/1259
lldap-db  |
lldap-db  |        Counter to that, there appears to be PostgreSQL data in:
lldap-db  |          /var/lib/postgresql/data (unused mount/volume)
lldap-db  |
lldap-db  |        This is usually the result of upgrading the Docker image without
lldap-db  |        upgrading the underlying database using "pg_upgrade" (which requires both
lldap-db  |        versions).
lldap-db  |
lldap-db  |        The suggested container configuration for 18+ is to place a single mount
lldap-db  |        at /var/lib/postgresql which will then place PostgreSQL data in a
lldap-db  |        subdirectory, allowing usage of "pg_upgrade --link" without mount point
lldap-db  |        boundary issues.
lldap-db  |
lldap-db  |        See https://github.com/docker-library/postgres/issues/37 for a (long)
lldap-db  |        discussion around this process, and suggestions for how to do so.

```bash lldap-db | Error: in 18+, these Docker images are configured to store database data in a lldap-db | format which is compatible with "pg_ctlcluster" (specifically, using lldap-db | major-version-specific directory names). This better reflects how lldap-db | PostgreSQL itself works, and how upgrades are to be performed. lldap-db | lldap-db | See also https://github.com/docker-library/postgres/pull/1259 lldap-db | lldap-db | Counter to that, there appears to be PostgreSQL data in: lldap-db | /var/lib/postgresql/data (unused mount/volume) lldap-db | lldap-db | This is usually the result of upgrading the Docker image without lldap-db | upgrading the underlying database using "pg_upgrade" (which requires both lldap-db | versions). lldap-db | lldap-db | The suggested container configuration for 18+ is to place a single mount lldap-db | at /var/lib/postgresql which will then place PostgreSQL data in a lldap-db | subdirectory, allowing usage of "pg_upgrade --link" without mount point lldap-db | boundary issues. lldap-db | lldap-db | See https://github.com/docker-library/postgres/issues/37 for a (long) lldap-db | discussion around this process, and suggestions for how to do so. ```

mg merged commit 30befc53fb into master

2025-11-28 20:43:32 +01:00

mg deleted branch containerd-snapshotter

2025-11-28 20:43:32 +01:00

mg referenced this pull request from a commit

2025-11-28 20:43:32 +01:00

docker: use containerd-snapshotter (#739)

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