postgres: change backup format from plain SQL to pg_dump custom #58
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I'm experimenting with implementing the backup restore step and I ran into a few complications: * pg_restore does not like plain SQL and prefers this format they refer to as "custom" * psql does not allow us to change the role to `xsnippet-api` before restoring the backup in an Ansible task, so all objects end up being owned by the admin role `postgres`... And we can't use `become` because the system user `xsnippet-api` does not exist at that point yet Switching to the custom format allows us to have this symmetry between pg_dump and pg_restore, and preserve/restore the correct owner value on all database objects. pg_restore also allows to skip the commands setting ownership, e.g. if we want to migrate to a different role.
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ikalnytskyi
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Nov 16, 2024
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I'm experimenting with implementing the backup restore step and I ran into a few complications:
pg_restore does not like plain SQL and prefers this format they refer to as "custom"
psql does not allow us to change the role to
xsnippet-apibefore restoring the backup in an Ansible task, so all objects end up being owned by the admin rolepostgres... And we can't usebecomebecause the system userxsnippet-apidoes not exist at that point yetSwitching to the custom format allows us to have this symmetry between pg_dump and pg_restore, and preserve/restore the correct owner value on all database objects. pg_restore also allows to skip the commands setting ownership, e.g. if we want to migrate to a different role.