chaunceyt / openshift-cheat-sheet

Cheat sheet for OpenShift

OpenShift cheat sheet

Minishift: give user XXX cluster admin rights

oc login -u system:admin
oc adm policy add-cluster-role-to-user cluster-admin XXX

Log in via CLI

Get from https://CLUSTER:8443/console/command-line the token.

oc login ...

Create project

oc new-project xxx --description="XXX" --display-name="xxx xxx xxx"

Create app and build from source on GitHub

Launches as pod supervised by DC:

oc new-app --strategy=source IMAGE:TAG~https://github.com/handle/repo.git
# for example:
oc new-app --strategy=source python:2.7~https://github.com/mhausenblas/cwc.git -e APP_FILE=cwc.py -e CWCPORT=8080

Create app definition from Dockerfile

oc new-app --strategy=docker --name='$(app_name)' --context-dir='./app/' . --output yaml > app.yaml
oc apply -f app.yaml

Build from image from local dir

oc new-build --strategy=docker --name='xxx' .
oc start-build xxx --from-dir .

Follow build logs

oc logs -f bc/xxx

Run simple

TBD: how to find image?

oc run rs --image=172.30.115.115:5000/go-test/reshifter

Check deployment

oc status
oc logs -f dc/xxx

Create service from DC

oc expose dc rs --port=8080

Create route

oc expose svc/xxx

Find FQDN

oc get routes | grep xxx | awk '{print $2}'

Hit /info endpoint of the service, using two different methods:

http $(oc get routes | grep xxx | awk '{print $2}')/info
curl -s $(oc get routes | grep xxx | awk '{print $2}')/info | jq .