![]() ![]() Instead, use a temporary file and a rename operation: The a configuration file will be empty by the time kubectl gets around to trying to merge it in with the other two. $ KUBECONFIG=a:b:c kubectl config view -raw > a This will fail spectacularly (and most assuredly destroy data in the process!): We have to be careful with the order of our operations. To save this combined file, we can employ some shell redirection, along with a bit of caution.Įvery UNIX shell I’ve ever used truncates files that are the target of >-style output redirection, before the command producing the output gets executed. The -raw flag prevents kubectl from redacting user secrets, certificates, and keys. To write a new, aggregate configuration that contains the results of the merge, we can use kubectl config view -raw. kubernetes kubernetes-admin k8s-cp-ubuntu Any changes you make, like changing namespaces or setting contexts, will update the appropriate member file(s). If you put two (or more) files, separated by colons, in $KUBECONFIG, then kubectl will merge them together semantically, and operate on the composite configuration. * kubernetes kubernetes-admin k8s-cp-ubuntu * buffalo-lab-k8s buffalo-lab-k8s admin default Using kubectl config get-contexts commands, we can see that each of them is different: rw- 1 jhunt staff 422 Nov 17 14:25 minikube rw-r-r- 1 jhunt staff 5633 Jan 1 11:30 jhunt-vcp-tinynetes rw-r-r- 1 jhunt staff 5641 Jan 1 11:30 jhunt-vcp-prodernetes.yml rw-r-r- 1 jhunt staff 7050 Jan 6 09:56 buffalo-lab To demonstrate this, I’m going to show you my ~/.k directory: You cannot use the -kubeconfig command-line flag, it won’t work. Note: kubectl will only merge configuration files if you specify them via the $KUBECONFIG environment variable. Thankfully, kubectl itself can merge them for us! Now I’ve got this directory full of all these disparate, discrete configuration files, and I don’t want to hand-edit them back together. Then I met kubectx and kubens, and they quickly became invaluable. I did this because the “correct” command was too much to remember: → k is buffalo-labkubernetes: buffalo-lab To switch between clusters was as simple as: kubeconfig file for each cluster, and wrote a small shell function to set the requisite environment variables. Early on in my career spinning pods, I kept a separate. ![]() Once you start managing more than one Kubernetes cluster, you’ll start to demand more from your $KUBECONFIG. Also don’t forget to checkout out the video series on YouTube! We have a whole bunch of these over on our Silly Kubectl Tricks page. "type": "Microsoft.This is just one blog post in an ongoing series about fun things you can do with the Kubernetes CLI, kubectl. "clientId": "xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxxx" "nodeResourceGroup": "MC_dev-hlf1_dev-hlf1-HLF-AKS_westus", "id": "/subscriptions/xxxx-xxxx-xxxx-xxxx-xxxxxxx/resourcegroups/dev-hlf1/providers/Microsoft.ContainerService/managedClusters/dev-hlf1-HLF-AKS", "logAnalyticsWorkspaceResourceID": "/subscriptions/xxxx-xxxx-xxx-xxxx-xxxxx/resourceGroups/dev-hlf1/providers/microsoft.operationalinsights/workspaces/hlf1T02-18-57" ![]() az aks list -resource-group dev-hlf1 -subscription xxxx-xxx-xxxx-xx-xxxxxxxxxxx If I update it manually from $HOME/.kube/config, how do I get the new values from the new cluster (token, client This one detects the newly the westus cluster. name: clusterUser_dev-hlf01_hlf01-HLF-AKSĬlient-certificate-data: xxxxxxxxxxxxxxxxx= name: clusterUser_dev-hlf02_hlf02-HLF-AKSĬlient-certificate-data: xxxxxxxxxxxxxxxxxxxxxxxx=Ĭlient-key-data: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx User: clusterUser_dev-hlf01_hlf01-HLF-AKS User: clusterUser_dev-hlf02_hlf02-HLF-AKS kubectl config viewĬertificate-authority-data: xxxxxxxxxxxxxxxxxxxxxxxxxxx= Unable to connect to the server: dial tcp: lookup 8s.io on 168.63.129.16:53: no such the the kube config, it still displays the old config. The first one used region SouthAustralia.Īfter new AKS setup is done, I checked the pods and the context. Then created a new one, Hyperledger-Fabric-on-Azure-Kubernetes-Service, which set to region US West. I have deleted the first AKS setup I created as well as the resource group in Azure.
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