Kubernetes create deployment unexpected SchemaError
After installing kubectl with brew you should run: rm /usr/local/bin/kubectl brew link –overwrite kubernetes-cli And also optionally: brew link –overwrite –dry-run kubernetes-cli.
kubernetes
Empty ADDRESS kubernetes ingress
You have to enable ingress addons by following command before creating ingress rules. You can also enable it before executing any other command $ minikube addons enable ingress ingress was successfully enabled Wait until the pods are up and running. You can check by executing following command and wait for the similar output kubectl get … Read more
What’s the meaning of “READY=2/2” output by command “kubectl get pod $yourpod”
it shows how many containers in a pod are considered ready. You can have some containers starting faster then others or having their readiness checks not yet fulfilled (or still in initial delay). In such cases there will be less containers ready in pod then their total number (ie. 1/2) hence the whole pod will … Read more
How to Add Users to Kubernetes (kubectl)?
For a full overview on Authentication, refer to the official Kubernetes docs on Authentication and Authorization For users, ideally you use an Identity provider for Kubernetes (OpenID Connect). If you are on GKE / ACS you integrate with respective Identity and Access Management frameworks If you self-host kubernetes (which is the case when you use … Read more
how to check whether RBAC is enabled, using kubectl
You can check this by executing the command kubectl api-versions; if RBAC is enabled you should see the API version .rbac.authorization.k8s.io/v1. In AKS, the best way is to check the cluster’s resource details at resources.azure.com. If you can spot “enableRBAC”: true, your cluster has RBAC enabled. Please note that existing non-RBAC enabled AKS clusters cannot … Read more
How to add roles to nodes in Kubernetes?
This worked for me: kubectl label node cb2.4xyz.couchbase.com node-role.kubernetes.io/worker=worker NAME STATUS ROLES AGE VERSION cb2.4xyz.couchbase.com Ready custom,worker 35m v1.11.1 cb3.5xyz.couchbase.com Ready worker 29m v1.11.1 I could not delete/update the old label, but I can live with it.
Kubernetes – Passing multiple commands to the container
There can only be a single entrypoint in a container… if you want to run multiple commands like that, make bash be the entry point, and make all the other commands be an argument for bash to run: command: [“/bin/bash”,”-c”,”touch /foo && echo ‘here’ && ls /”]
Can a PVC be bound to a specific PV?
There is a way to pre-bind PVs to PVCs today, here is an example showing how: Create a PV object with a ClaimRef field referencing a PVC that you will subsequently create: $ kubectl create -f pv.yaml persistentvolume “pv0003” created where pv.yaml contains: apiVersion: v1 kind: PersistentVolume metadata: name: pv0003 spec: storageClassName: “” capacity: storage: … Read more
How to configure kubectl with cluster information from a .conf file?
Here are the official documentation for how to configure kubectl http://kubernetes.io/docs/user-guide/kubeconfig-file/ You have a few options, specifically to this question, you can just copy your admin.conf to ~/.kube/config