Blue Green Deployments

The master is blue, the branch is green.

Deploy from OSEv3.

new project and blue app from master

oc new-project bluegreen --display-name="Blue Green" --description='Blue Green Deployments'
oc new-app https://github.com/devops-with-openshift/bluegreen#master --name=blue --strategy=sti

expose bluegreen service (using blue)

oc expose service blue --name=bluegreen

green app deploy

oc new-app https://github.com/devops-with-openshift/bluegreen#green --name=green

switch services to green

oc get route/bluegreen -o yaml | sed -e 's/name: blue$/name: green/' | oc replace -f -

and back again

oc get route/bluegreen -o yaml | sed -e 's/name: green$/name: blue/' | oc replace -f -