ipfs: run ipfs init using one-shot container
ipfs: run ipfs init using one-shot container

Previously, when ipfs init hadn't been run yet, the
container would go into a restart loop, and thus
`docker exec` in that looping container would fail
to execute `ipfs init`.

License: MIT
Signed-off-by: Lars Gierth <a7f454432b0865c35643e2b81965ab19364a6177@systemli.org>

sroerick/infrastructure,davidar/infrastructure,davidar/infrastructure,sroerick/infrastructure,ipfs/infrastructure,ipfs/infrastructure