Supply a postgresql.conf configuration file

[JimiHFord]

I am trying to follow the Database Configuration section of postgres's documentation.

I tried changing the docker run line to this:

$ # get the default config
$ docker run -i --rm postgres cat /usr/share/postgresql/postgresql.conf.sample > my-postgres.conf

$ # customize the config

$ # run postgres with custom config
$ docker run --name some-postgis -v "$PWD/my-postgres.conf":/etc/postgresql/postgresql.conf -c 'config_file=/etc/postgresql/postgresql.conf' -e POSTGRES_PASSWORD=$POSTGRES_PASSWORD -e POSTGRES_USER=postgres -d -p 5432:5432 postgis/postgis:13-3.1-alpine

But the docker run command errors with:

invalid argument "config_file=/etc/postgresql/postgresql.conf" for "-c, --cpu-shares" flag: strconv.ParseInt: parsing "config_file=/etc/postgresql/postgresql.conf": invalid syntax

Does anyone know how to supply a config file to the postgis container?

[phillipross]

Trying moving your -c 'config_file=/etc/postgresql/postgresql.conf' to the end of the commandline you are invoking.

Then way you are specifying it, the value goes to the docker run command whereas if you move it to the end (after the docker image name specification) it will be passed into the container and interrupted by the entrypoint that runs inside the container.

Hope that helps!

[JimiHFord]

🤦 that did the trick, thank you!