finallycoffee/matrix-docker-ansible-deploy
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recommend a better way of backing up postgres

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don't spawn an extra container
run pg_dumpall within matrix-postgres instead, ensures correct version
store under /matrix so a backup of the folder will contain a DB dump
use absolute paths just in case something in the ENV is messed up
This commit is contained in:
Marc Leuser 2021-02-21 21:38:20 +01:00
parent 894679750e
commit 53869ac14a
1 changed files with 4 additions and 7 deletions
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11
docs/maintenance-postgres.md
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@ -51,15 +51,12 @@ ansible-playbook -i inventory/hosts setup.yml --tags=run-postgres-vacuum,start
To make a back up of the current PostgreSQL database, make sure it's running and then execute a command like this on the server:
```bash
docker run \
--rm \
--log-driver=none \
--network=matrix \
/usr/bin/docker exec \
--env-file=/matrix/postgres/env-postgres-psql \
docker.io/postgres:13.1-alpine \
pg_dumpall -h matrix-postgres \
matrix-postgres \
/usr/local/bin/pg_dumpall -h matrix-postgres \
| gzip -c \
> /postgres.sql.gz
> /matrix/postgres.sql.gz
```
If you are using an [external Postgres server](configuring-playbook-external-postgres.md), the above command will not work, because the credentials file (`/matrix/postgres/env-postgres-psql`) is not available.