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Useful OpenShift Commands

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robbaronbu edited this page May 24, 2017 · 14 revisions

UP https://github.com/CCI-MOC/moc-public/wiki/OpenShift

restarts the master service:

systemctl restart atomic-openshift-master

log in:
```
oc login -u <username>:<password>
```
list the projects:
```
oc projects   
```

create a project:

oadm new-project <project name> --description="<project description>"

gets current project:
```
oc project
```
sets current project:
```
oc project <project name>
```
lists pods in current project:
```
oc get pods
```

describe a pod:

oc describe pod <a pod name from command 5>

cat log from a pod:
```
oc logs <a pod name from command 5>
```
list nodes:
```
oc get nodes
```
delete a node:
```
oc delete <node name>
```
Move the project over to a different region - also can be used to determine the region a project is currently running in.
1. oc edit dc/[project name]
a) either add or edit

spec: template: spec: nodeSelector: region: [region name]
1. redeploy the project:
  
  oc -n default rollout latest docker-registry
So far the only time we have had to do this is to move the docker-registry from the default region to the infra region.

Notes:

On project creation:

a) oadm new-project uses the default template

b) oc new-project and "Create New Project" (from the GUI) will allow the specification of one project template

c) Cluster admins can use: oc process ... | oc create -f ... (This is still a bit of a research project - haven't used this yet).

see: <https://github.com/openshift/origin/issues/4381>