112 lines
2.1 KiB
Markdown
112 lines
2.1 KiB
Markdown
---
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archive: true
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kind: howto
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section: dev
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---
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These instructions are based on [docker-postgres-upgrade](https://github.com/tianon/docker-postgres-upgrade).
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For PostgreSQL upgrade with `pg_dump` see [[Migrate docker postgres databases with pg_dump]].
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## Scenario
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We have Docker environment containing a postgres 10 database and want to upgrade it to version 12. We use another docker image to update the postgres volume.
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The environment has an Odoo database:
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**Odoo-Development/docker-compose.yml**
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```yml
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...
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db:
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container_name: db
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image: postgres:10
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ports:
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- "127.0.0.1:5432:5432"
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environment:
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POSTGRES_DB: odoo
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POSTGRES_USER: odoo
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POSTGRES_PASSWORD: odoo
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PGDATA: /var/lib/postgresql/data/pgdata
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volumes:
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- odoo-db-data:/var/lib/postgresql/data/pgdata
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volumes:
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odoo-db-data:
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...
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```
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## Instructions
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Start the environment.
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`task start`
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Set env vars and create directory.
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```bash
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OLD='10'
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NEW='12'
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POSTGRES_USER=odoo
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mkdir -p "$PWD/$NEW"
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```
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Stop the running container.
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`docker stop db`
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Upgrade the volume.
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```bash
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sudo rm -rf "$PWD/$NEW"
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docker run --rm \
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-v odoo-development_odoo-db-data:/var/lib/postgresql/10/data \
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-v "$PWD/$NEW/data":/var/lib/postgresql/12/data \
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-e PGUSER=$POSTGRES_USER\
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-e POSTGRES_INITDB_ARGS="-U $POSTGRES_USER"\
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"tianon/postgres-upgrade:$OLD-to-$NEW"
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```
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Show current version.
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`sudo cat /var/lib/docker/volumes/odoo-development_odoo-db-data/_data/PG_VERSION`
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Move the directory.
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```bash
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sudo rm -rf /var/lib/docker/volumes/odoo-development_odoo-db-data/_data
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sudo mv 12/data /var/lib/docker/volumes/odoo-development_odoo-db-data/_data
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```
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Change postgres version.
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`image: postgres:12`
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Start the container.
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```bash
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task start-db
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```
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Check logs.
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```bash
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docker logs db
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```
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## Troubleshooting
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### No entry host
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**Problem**
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```
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2021-04-16 12:07:49.121 UTC [35] FATAL: no pg_hba.conf entry for host "172.28.0.5", user "odoo", database "postgres", SSL off
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```
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**Solution**
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```
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docker exec db /bin/bash -c 'echo "host all all all trust" >> /var/lib/postgresql/data/pg_hba.conf'
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task start
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```
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