Update Dockerfile

5 jobs for master in 3 minutes and 54 seconds (queued for 1 second)
Name Stage Failure
test Test
Running on runner-09798d9d-project-1164-concurrent-0 via gitlab-runner.novalocal...
Fetching changes with git depth set to 50...
Reinitialized existing Git repository in /builds/itpublic/dockerimages/centosfpmcookery/.git/
Checking out 7542c2e4 as master...

Skipping Git submodules setup
$ echo -n $CI_JOB_TOKEN | docker login -u gitlab-ci-token --password-stdin $CI_REGISTRY
error during connect: Post http://docker:2375/v1.40/auth: dial tcp: lookup docker on no such host
ERROR: Job failed: exit code 1