CODEWITHSUNDEEP
postgresqldockerdocker-volume
Mat
Mat

Reputation: 1389

Move default docker postgres data volume

I've created a docker postgis container with the following command :

docker run -p 5435:5432  -e POSTGRES_PASSWORD=xxxxxxx -e POSTGRES_INITDB_ARGS="-d" mdillon/postgis:9.6

This created a volume for data in /var/lib/docker/volumes/[some_very_long_id]/_data

Now I need to move this volume to somewhere else to ease backup for my outsourcing contractor... and don't know how to do this. I'm a bit lost as there seems to be different alternative with data volumes and fs mounts for example.

So what's the correct way to do it as today ? And how to move my current data directory to a better place ?

Thanks.

Upvotes: 0

Views: 4475

Answers (2)

Mabu Kloesen
Mabu Kloesen

Reputation: 1358

I didn't check or search deeply, but in your case I suggest to do following step:

  1. Create another container with outside folder.
  2. Using pg_basebackup get all data from the old container to the new container. Or using replicate.

So, you have the data folder outside the container.

Hopefully it will help your case.

Upvotes: 2

whites11
whites11

Reputation: 13260

You can declare a volume mount when you run your container. For example, you could run your container like this:

docker run -p 5435:5432 -e POSTGRES_PASSWORD=xxxxxxx -e POSTGRES_INITDB_ARGS="-d" \
-v /the/path/you/want/on/your/host:/var/lib/postgresql/data \
mdillon/postgis:9.6

This way the postgres data directory will be in the /the/path/you/want/on/your/host in your host.

Upvotes: 3

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