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Clarifying docs about database on the host machine.

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Alexey Skobkin 2022-03-19 05:38:06 +03:00
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_docs/access_database_on_host_from_docker.md
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### PostgreSQL ### PostgreSQL
You need to make PostgreSQL listen not only `localhost`, but also Docker's network interface. You need to make PostgreSQL listen not only `localhost`, but also Docker's network interface.
To do that you need to add host machine IP address in the Docker network (usually `172.17.0.1`) to the `postgresql.conf`: To do that you need to add host machine IP address in the Docker network (usually `172.17.0.1`) to the
`postgresql.conf` by changing `listen_addresses` parameter:
```ini ```ini
# Listen local interface and also Docker's network # Listen local interface and also Docker's network
listen_addresses = 'localhost,172.17.0.1' listen_addresses = 'localhost,172.17.0.1'
``` ```
Then you need to allow apps inside Docker containers to authenticate. That could be done in the `pg_hba.conf`: Then you need to allow apps inside Docker containers to authenticate. That could be done by adding following line to the
`pg_hba.conf`:
``` ```
# Docker network # Docker network
host all all 172.17.0.0/12 md5 host all all 172.17.0.0/12 md5
``` ```
Do not forget to restart your PostgreSQL server. For PostgreSQL 12 it could be usually done like that: Do not forget to restart your PostgreSQL server. For PostgreSQL 12 and `main` cluster it could be usually done like that:
```shell ```shell
systemctl restart postgresql@12-main.service systemctl restart postgresql@12-main.service