As the handbook describes, you can reuse the Docker daemon from Minikube with eval $(minikube docker-env). So to use an image without uploading it, you can follow these steps: Set the environment variables with eval $(minikube docker-env) Build the image with the Docker daemon of Minikube (e.g., docker build -t my-image .) Set the image … Read more
There are a few reasons why you encounter these errors: There might be an issue with the existing cache and/or disc space. In order to fix it you need to clear the APT cache by executing: sudo apt-get clean and sudo apt-get update. The same goes with existing docker images. Execute: docker image prune -f … Read more
You can just download the previous version binary and replace the one you have now. Linux: curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.5.2/bin/linux/amd64/kubectl chmod +x ./kubectl sudo mv ./kubectl /usr/local/bin/kubectl macOS: curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.5.2/bin/darwin/amd64/kubectl chmod +x ./kubectl sudo mv ./kubectl /usr/local/bin/kubectl Windows: curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.5.2/bin/windows/amd64/kubectl.exe And add it to PATH. If not follow instructions for other Operating Systems here: … Read more
This command will delete all PODs older than one day : kubectl get pods -o go-template –template ‘{{range .items}}{{.metadata.name}} {{.metadata.creationTimestamp}}{{“\n”}}{{end}}’ | awk ‘$2 <= “‘$(date -d ‘yesterday’ -Ins –utc | sed ‘s/+0000/Z/’)'” { print $1 }’ | xargs –no-run-if-empty kubectl delete pod This command will delete all PODs older than 4 hours : kubectl get … Read more
kubectl run nginx –image=nginx –port=80 –restart=Never –restart=Always: The restart policy for this Pod. Legal values [Always, OnFailure, Never]. If set to Always a deployment is created, if set to OnFailure a job is created, if set to Never, a regular pod is created. For the latter two –replicas must be 1. Default Always […] see … Read more
Use the namespace param to kubectl : kubectl –namespace kube-system logs kubernetes-dashboard-rvm78
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
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
Your config.json file should be inside your mychart/ directory, not inside mychart/templates Chart Template Guide configmap.yaml apiVersion: v1 kind: ConfigMap metadata: name: {{ .Release.Name }}-configmap data: config.json: |- {{ .Files.Get “config.json” | indent 4}} config.json { “val”: “key” } helm install –dry-run –debug mychart [debug] Created tunnel using local port: ‘52091’ [debug] SERVER: “127.0.0.1:52091” … … Read more