You can execute commands in a container using kubectl exec command. For example: to check files in any folder: kubectl exec <pod_name> — ls -la / or to calculate md5sum of any file: kubectl exec <pod_name> — md5sum /some_file
Tear down Kubernetes in Docker for OS X is quite an easy task. Go to Preferences, open Reset tab, and click Reset Kubernetes cluster. All object that have been created with Kubectl before that will be deleted. You can also reset docker VM image (Reset disk image) and all settings (Reset to factory defaults) or … Read more
For getting a list of all the resource types and their latest supported version, run the following: for kind in `kubectl api-resources | tail +2 | awk ‘{ print $1 }’`; do kubectl explain $kind; done | grep -e “KIND:” -e “VERSION:” It should produce output like KIND: Binding VERSION: v1 KIND: ComponentStatus VERSION: v1 … Read more
Go to homebrew git repo: https://github.com/Homebrew/homebrew-core/ Identify the commit specific to kubernetes 1.11.x version Go to Formula folder Open raw version of kubernetes-cli.rb file Copy the raw link of the file https://raw.githubusercontent.com/Homebrew/homebrew-core/3e8f5503dde7069c5ff49b82d5e1576e6ebe3a5d/Formula/kubernetes-cli.rb Run brew install <raw_link>
When using a single VM for Kubernetes, it’s useful to reuse Minikube’s built-in Docker daemon. Reusing the built-in daemon means you don’t have to build a Docker registry on your host machine and push the image into it. Instead, you can build inside the same Docker daemon as Minikube, which speeds up local experiments. The … Read more
kubectl delete pods –field-selector status.phase=Failed -n <your-namespace> …cleans up any failed pods in your-namespace.
Unfortunately, Kubernetes doesn’t currently expose the progress of docker pull. I think your best bet is to look at /var/log/docker.log on the machine that the pod got scheduled onto.
Both bash and zsh supports scripts that completes printed command when you press <TAB>. The feature is called Programmable completion, and you can find more details about that here: zsh completion. Fortunately, you don’t need to write your own script – kubectl provides it for zsh > 5.2. Try running this command: source <(kubectl completion … Read more
It’s a little easier to setup an alias for this bash command: kubectl delete jobs `kubectl get jobs -o custom-columns=:.metadata.name`