PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

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# In `perSystem.process-compose.<name>`
  services.postgres."pg1".enable = true;



Unix-domain socket path is too long


Only relevant if socketDir is set. If not, postgres uses TCP/IP by default.

We already talk about this in the data directory guide. In case of postgres, you can set socketDir while keeping the dataDir unchanged.


The socketDir must be set to a shorter path (less than 100 chars) as a workaround.

  services.postgres."pg1" = {
    enable = true;
    socketDir = "/tmp/pg1";
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