OpenShift 4 oneliners

OpenShift 4 oneliners

# Aanmaken van een extra / nieuwe master node (master-2) op bais van (master-0):
oc -n openshift-machine-api get machine sbx42-69jrk-master-0 -o json --export| sed -e s/master-0/master-2/g | jq 'del(.metadata.annotations)' | oc -n openshift-machine-api create -f -

# info ophalen over het cluster
oc get infrastructure cluster -o yaml

# delete completed (deployment) pods
oc delete po --field-selector=status.phase==Succeeded

# info over deploymentconfigs met cpu/memory requests & limits
oc get dc -o json | jq -r --arg ns 'Namespace: ' --arg dc 'DeploymentConfig: ' '.items[] | $ns + .metadata.namespace, $dc + .metadata.name, .spec.template.spec.containers[].resources'
oc get dc -o json --all-namespaces | jq -r --arg ns 'Namespace: ' --arg dc 'DeploymentConfig: ' '.items[] | $ns + .metadata.namespace, $dc + .metadata.name, .spec.template.spec.containers[].resources'


oc get dc -o json | jq -r --arg ns 'Namespace: ' --arg dc 'DeploymentConfig: ' '.items[] | select(.spec.template.spec.containers[].resources=={}) | $ns + .metadata.namespace, $dc + .metadata.name, .spec.template.spec.containers[].resources'
oc get dc -o json --all-namespaces | jq -r --arg ns 'Namespace: ' --arg dc 'DeploymentConfig: ' '.items[] | select(.spec.template.spec.containers[].resources=={}) | $ns + .metadata.namespace, $dc + .metadata.name, .spec.template.spec.containers[].resources'

# get pods & pvc
oc get po -o json | jq -c '.items[] | {name: .metadata.name, namespace: .metadata.namespace, claimName:.spec.volumes[] | select( has ("persistentVolumeClaim") ).persistentVolumeClaim.claimName }'