miminar/redeploy-docker-registry.md

## redeploy-docker-registry.md

      
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              redeploy-docker-registry.md
            
          
    Re-deploy docker-registry in the same namespace as insecure

Motivation

Debug networking.
Prerequisites


docker-registry deployed in the current namespace
jq binary installed and present in PATH

Steps

filter='(.spec.template.spec.containers[0] |= ((.livenessProbe.httpGet.scheme |= "HTTP") |'
filter+=' (.readinessProbe.httpGet.scheme |= "HTTP"))) |'
filter+=' del(.status) | .metadata |= {"name": "\(.name)-tmp", "labels": {"docker-registry":"secondary"}}'
oc get -o json dc/docker-registry | \
    oc env -f - -o json REGISTRY_HTTP_TLS_CERTIFICATE- REGISTRY_HTTP_TLS_KEY- | \
    jq "${filter}" | oc create -f -
oc expose dc/docker-registry-tmp
# wait until deployed
oc rollout status dc/docker-registry-tmp
# verify it's accessible:
hostport="$(oc get -o jsonpath=$'{.spec.clusterIP}:{.spec.ports[0].port}\n' svc/docker-registry-tmp)"
curl "http://${hostport}/v2/"
{"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":null}]}