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Merge pull request #514 from infosiftr/postgres 

Document POSTGRES_INITDB_ARGS env var
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Nick Cox 2016-03-15 17:16:26 -06:00
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@ -53,6 +53,10 @@ This optional environment variable can be used to define another location - like
This optional environment variable can be used to define a different name for the default database that is created when the image is first started. If it is not specified, then the value of `POSTGRES_USER` will be used.
### `POSTGRES_INITDB_ARGS`
This optional environment variable can be used to send arguments to `postgres initdb`. The value is a space separated string of arguments as `postgres initdb` would expect them. This is useful for adding functionality like data page checksums: `-e POSTGRES_INITDB_ARGS="--data-checksums"`.
# How to extend this image
If you would like to do additional initialization in an image derived from this one, add one or more `*.sql` or `*.sh` scripts under `/docker-entrypoint-initdb.d` (creating the directory if necessary). After the entrypoint calls `initdb` to create the default `postgres` user and database, it will run any `*.sql` files and source any `*.sh` scripts found in that directory to do further initialization before starting the service.