$ git tag
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
# Pick the next release number
$ git tag -am "v2.0.5" v2.0.5
$ make container
<...lots of output...>
container: staging-k8s.gcr.io/git-sync-amd64:v2.0.5
$ gcloud docker push -- staging-k8s.gcr.io/git-sync-amd64:v2.0.5
<...lots of output...>
v2.0.5: digest: sha256:904833aedf3f14373e73296240ed44d54aecd4c02367b004452dfeca2465e5bf size: 950
Lastly, make a release through the github UI.