Merge branch 'to-2.30.1' into 'master'

To 2.30.1

See merge request !2
20 jobs for release/2.30.1-1 in 2 minutes and 1 second (queued for 1 second)
Name Stage Failure
docker_build Build
$ deployer build \ # collapsed multi-line command
importing image...skipped. "image.tar.gz" not found
building image...adding HTTP_PROXY= to build command
adding HTTPS_PROXY= to build command
adding NO_PROXY=docker,localhost,,, to build command
time="2019-07-24T14:29:56Z" level=error msg="failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial tcp connect: connection refused"
context canceled
ERROR: Job failed: exit code 1