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Through the commonLabels directive in kustomization.yml, all resources get a label named "app.kubernetes.io/version", which is being set to the Tutor version at the time of initial deployment. When the user then subsequently progresses to a new Tutor version, Kubernetes attempts to update this label — but for Deployment, ReplicaSet, and DaemonSet resources, this is no longer allowed as of https://github.com/kubernetes/kubernetes/issues/50808. This causes "tutor k8s start" (at the "kubectl apply --kustomize" step) to break with errors such as: Deployment.apps "redis" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"app.kubernetes.io/instance":"openedx-JIONBLbtByCGUYgHgr4tDWu1", "app.kubernetes.io/managed-by":"tutor", "app.kubernetes.io/name":"redis", "app.kubernetes.io/part-of":"openedx", "app.kubernetes.io/version":"12.1.7"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable Simply removing the app.kubernetes.io/version label from kustomization.yml will permanently fix this issue for newly created Kubernetes deployments, which will "survive" any future Tutor version changes thereafter. However, *existing* production Open edX deployments will need to throw the affected Deployments away, and re-create them. Also, add the Tutor version as a resource annotation instead, using the commonAnnotations directive. See also: https://github.com/kubernetes/client-go/issues/508 https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/commonlabels/ https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/commonannotations/ Fixes #531. |
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| .. | ||
| commands | ||
| templates | ||
| __about__.py | ||
| __init__.py | ||
| bindmounts.py | ||
| config.py | ||
| env.py | ||
| exceptions.py | ||
| fmt.py | ||
| images.py | ||
| interactive.py | ||
| jobs.py | ||
| plugins.py | ||
| serialize.py | ||
| types.py | ||
| utils.py | ||