refactor postgres connection string building (#27723)

This patchset changes the connection string builder to use net.URL and
the host/port parser to use the stdlib function for splitting host from
port. It also adds a footnote about a potentially required portnumber
for postgres UNIX sockets.

Fixes: #24552
This commit is contained in:
Moritz Poldrack 2023-11-01 19:00:20 +01:00 committed by GitHub
parent 665d12cf84
commit 9b6e77c489
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3 changed files with 47 additions and 30 deletions

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@ -424,7 +424,7 @@ The following configuration set `Content-Type: application/vnd.android.package-a
## Database (`database`)
- `DB_TYPE`: **mysql**: The database type in use \[mysql, postgres, mssql, sqlite3\].
- `HOST`: **127.0.0.1:3306**: Database host address and port or absolute path for unix socket \[mysql, postgres\] (ex: /var/run/mysqld/mysqld.sock).
- `HOST`: **127.0.0.1:3306**: Database host address and port or absolute path for unix socket \[mysql, postgres[^1]\] (ex: /var/run/mysqld/mysqld.sock).
- `NAME`: **gitea**: Database name.
- `USER`: **root**: Database username.
- `PASSWD`: **_empty_**: Database user password. Use \`your password\` or """your password""" for quoting if you use special characters in the password.
@ -455,6 +455,8 @@ The following configuration set `Content-Type: application/vnd.android.package-a
- `CONN_MAX_LIFETIME` **0 or 3s**: Sets the maximum amount of time a DB connection may be reused - default is 0, meaning there is no limit (except on MySQL where it is 3s - see #6804 & #7071).
- `AUTO_MIGRATION` **true**: Whether execute database models migrations automatically.
[^1]: It may be necessary to specify a hostport even when listening on a unix socket, as the port is part of the socket name. see [#24552](https://github.com/go-gitea/gitea/issues/24552#issuecomment-1681649367) for additional details.
Please see #8540 & #8273 for further discussion of the appropriate values for `MAX_OPEN_CONNS`, `MAX_IDLE_CONNS` & `CONN_MAX_LIFETIME` and their
relation to port exhaustion.