To start, it’s useful to note and remember that in Kubernetes, every pod gets its own ip address from 10.*, that is usable only within the cluster. Now, the port-forward feature of kubectl simply tunnels the traffic from a specified port at your local host machine to the specified port on the specified pod. API … Read more
I am not exactly sure what you are asking as it seems you already know about the minikube service <SERVICE_NAME> –url command which will give you a url where you can access the service. In order to open the exposed service, the minikube service <SERVICE_NAME> command can be used: $ kubectl run hello-minikube –image=gcr.io/google_containers/echoserver:1.4 –port=8080 … Read more
You can export the variable and use it while running helm install. Before that, you have to modify your chart so that the value can be set while installation. Skip this part, if you already know, how to setup template fields. As you don’t want to expose the data, so it’s better to have it … Read more
In the official documentation I found this: https://kubernetes.io/docs/tasks/access-application-cluster/access-cluster/#accessing-the-api-from-a-pod Apparently I was missing a security token that I didn’t need in a previous version of Kubernetes. From that, I devised what I think is a simpler solution than running a proxy or installing golang on my container. See this example that gets the information, from the … Read more
As @Sukumar commented, you need to have your Dockerfile have a Command to run or have your ReplicationController specify a command. The pod is crashing because it starts up then immediately exits, thus Kubernetes restarts and the cycle continues.
I stumbled over the same issue and found a nice solution which does not need any static ip configuration: You can access a service via it’s DNS name (as mentioned by you): servicename.namespace.svc.cluster.local You can use that DNS name to reference it in another namespace via a local service: kind: Service apiVersion: v1 metadata: name: … Read more
[*] A ClusterIP exposes the following: spec.clusterIp:spec.ports[*].port You can only access this service while inside the cluster. It is accessible from its spec.clusterIp port. If a spec.ports[*].targetPort is set it will route from the port to the targetPort. The CLUSTER-IP you get when calling kubectl get services is the IP assigned to this service within … Read more
You have to define a PersistentVolume providing disc space to be consumed by the PersistentVolumeClaim. When using storageClass Kubernetes is going to enable “Dynamic Volume Provisioning” which is not working with the local file system. To solve your issue: Provide a PersistentVolume fulfilling the constraints of the claim (a size >= 100Mi) Remove the storageClass … Read more
apiVersion: cert-manager.io/v1alpha2 kind: Certificate metadata: name: certificate-name spec: secretName: tls-cert duration: 24h renewBefore: 12h commonName: hostname dnsNames: – hostname issuerRef: name: letsencrypt kind: ClusterIssuer apiVersion: certmanager.k8s.io/v1alpha2 kind: ClusterIssuer metadata: name: letsencrypt spec: acme: email: [email protected] privateKeySecretRef: name: letsencrypt-private-key server: https://acme-v02.api.letsencrypt.org/directory solvers: – http01: ingress: class: nginx selector: {} apiVersion: extensions/v1beta1 kind: Ingress metadata: annotations: certmanager.k8s.io/acme-challenge-type: … Read more