##1, rolling update

• oc new-app openshift/php:5.6~https://github.com/cdan/ab-deploy.git -l abdeploy=true --name=myappv1

• oc edit dc myappv1 (intervalSeconds: 2) add readiness probe under imagePullPolicy

            readinessProbe:    
              failureThreshold: 3  
              httpGet:  
                path: /  
                port: 8080  
                scheme: HTTP  
              periodSeconds: 5  
              successThreshold: 1  
              timeoutSeconds: 1  
  

• oc scale --replicas=6 dc myappv1

• oc expose service/myappv1 --hostname=rolling.apps.example.com

• while true; do curl http://rolling.apps.example.com/; sleep 1; done;

• modify https://github.com/cdan/ab-deploy.git

• oc start-build myappv1

• no http failure during update.

##2, ab testing

• oc login -u redhat
• oc new-project abdeploy
• oc new-app openshift/php:5.6~https://github.com/cdan/ab-deploy.git -l abdeploy=true --name=myappv1
• oc create -f abservice.json
• oc expose service/ab-router --hostname=abdeploy.apps.example.com
• for i in {1..100}; do curl http://abdeploy.apps.example.com/; echo ''; done
• modify https://github.com/cdan/ab-deploy.git
• oc new-app openshift/php:5.6~https://github.com/cdan/ab-deploy.git -l abdeploy=true --name=myappv2
• for i in {1..100}; do curl http://abdeploy.apps.example.com/; echo ''; done
• oc scale --replicas=5 dc myappv1
• for i in {1..100}; do curl http://abdeploy.apps.example.com/; echo ''; done

##3, blue green deployment

• oc new-app openshift/php:5.6~https://github.com/cdan/ab-deploy.git -l abdeploy=true --name=myappv1
• oc expose service/myappv1 --hostname=bg.apps.example.com
• modify https://github.com/cdan/ab-deploy.git
• oc new-app openshift/php:5.6~https://github.com/cdan/ab-deploy.git -l abdeploy=true --name=myappv2
• while true; do curl http://bg.apps.example.com/; echo; sleep 1; done;
• oc edit route myappv1 ; change myappv1->myappv2
• request direct to v2 without error.