It is not uncommon when using kustomize to inherit a large set of resources or components. Perhaps a few of them need to be updated with patches to accommodate your environment. But if there are objects that are completely incompatible, it may be necessary to delete them. This can be done with a kustomize ‘$delete’ … Kubernetes: using a delete patch with kustomize
The ‘export’ flag in kubectl was deprecated in 1.18, but you still need a way to dump the yaml of Kubernetes objects, often for the purpose of reapplying changes. The problem with doing a simple ‘get’ using a yaml output like below is that additional internal accounting attributes like ‘selfLink’, ‘creationTimestamp’, ‘uid’, will be present … Kubernetes: alternative to export for removing internal fields from yaml
Although ‘kubectl annotate‘ will set an annotation on a object directly, it will not set the annotation on the more deeply nested pod template for a Deployment or Daemonset. If you want to quickly set the annotation on a pod template (.spec.template.metadata.annotations) without modifying the full manifest, you can use the ‘patch‘ command. As a … Kubernetes: adding and removing pod template annotations using kubectl
The Ansible file module will allow you to use ‘state: absent’ to remove a file path, but if you need to perform this action if and only if the path is a symbolic link then you will need to register a test for this condition. By first using the stat module to test if the … Ansible: deleting a file path, but only if a symbolic link
If there is a Kubernetes event that causes mass eviction of pods, it is important to understand the root cause to rule out real issues in the system. However, at some point in your investigation you will want to remove the evicted pods so they do not lead to exhaustion of IP addresses and also … Kubernetes: deleting all evicted pods using kubectl