Kubectl Generate Client-key-data

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Kubernetes Dashboard is a general purpose, web-based UI for Kubernetes clusters. It allows users to manage applications running in the cluster and troubleshoot them, as well as manage the cluster itself. I'm trying to add my Azure AKS Kubernetes cluster to my GitLab CI/CD Kubernetes integration. I can execute kubectl commands on the cluster from my pc, after I ran this command. Az aks get-credentials -resource-group -name. I am still trying to investigate how to get kubectl up and running without using insecure-skip-tls-verify: true. Why are you trying to base64 the certificates? Simply replace client-certificate-data with client-certificate and client-key-data with client-key and the full path behind. That's a cleaner solution, at least that's what I am doing. Note: This topic shows how to generate reference documentation for kubectl commands like kubectl apply and kubectl taint. This topic does not show how to generate the kubectl options reference page. For instructions on how to generate the kubectl options reference page, see Generating Reference Pages for Kubernetes Components and Tools. Jun 20, 2018 For example, certificate-authority-data, client-certificate-data, client-key-data. In kubectl v1.14.1 I get error: Unexpected args: for using certificate-authority-data. Although it doesn't explicitly say it can be used with kubectl config set-cluster (and I suppose they mean doing so by writing to the file) I found it confusing.

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You can interact with Kubernetes clusters using the kubectl tool. The Azure CLI provides an easy way to get the access credentials and configuration information to connect to your AKS clusters using kubectl. To limit who can get that Kubernetes configuration (kubeconfig) information and to limit the permissions they then have, you can use Azure role-based access controls (RBAC).

This article shows you how to assign RBAC roles that limit who can get the configuration information for an AKS cluster.

Service account bearer tokens are perfectly valid to use outside the cluster and can be used to create identities for long standing jobs that wish to talk to the Kubernetes API. To manually create a service account, simply use the kubectl create serviceaccount (NAME) command. This creates a service account in the current namespace and an. You can use either kubectl create configmap or a ConfigMap generator in kustomization.yaml to create a ConfigMap. Note that kubectl starts to support kustomization.yaml since 1.14. Create a ConfigMap Using kubectl create configmap. Use the kubectl create configmap command to create configmaps from directories, files, or literal values.

Before you begin

This article assumes that you have an existing AKS cluster. If you need an AKS cluster, see the AKS quickstart using the Azure CLI or using the Azure portal.

This article also requires that you are running the Azure CLI version 2.0.65 or later. Run az --version to find the version. If you need to install or upgrade, see Install Azure CLI.

Available cluster roles permissions

When you interact with an AKS cluster using the kubectl tool, a configuration file is used that defines cluster connection information. This configuration file is typically stored in ~/.kube/config. Multiple clusters can be defined in this kubeconfig file. You switch between clusters using the kubectl config use-context command.

The az aks get-credentials command lets you get the access credentials for an AKS cluster and merges them into the kubeconfig file. You can use Azure role-based access controls (RBAC) to control access to these credentials. These Azure RBAC roles let you define who can retrieve the kubeconfig file, and what permissions they then have within the cluster.

The two built-in roles are:

  • Azure Kubernetes Service Cluster Admin Role
    • Allows access to Microsoft.ContainerService/managedClusters/listClusterAdminCredential/action API call. This API call lists the cluster admin credentials.
    • Downloads kubeconfig for the clusterAdmin role.
  • Azure Kubernetes Service Cluster User Role
    • Allows access to Microsoft.ContainerService/managedClusters/listClusterUserCredential/action API call. This API call lists the cluster user credentials.
    • Downloads kubeconfig for clusterUser role.

These RBAC roles can be applied to an Azure Active Directory (AD) user or group.

![NOTE]On clusters that use Azure AD, users with the clusterUser role have an empty kubeconfig file that prompts a log in. Once logged in, users have access based on their Azure AD user or group settings. Users with the clusterAdmin role have admin access.

Clusters that do not use Azure AD only use the clusterAdmin role.

Assign role permissions to a user or group

To assign one of the available roles, you need to get the resource ID of the AKS cluster and the ID of the Azure AD user account or group. The following example commands:

You can complete these steps with the Azure Cloud Shell, a macOS or Linux host, the Windows Subsystem for Linux, and other tools that support OpenSSH. NoteVMs created using SSH keys are by default configured with passwords disabled, which greatly increases the difficulty of brute-force guessing attacks.For more background and examples, see.For additional ways to generate and use SSH keys on a Windows computer, see. Generate public ssh key windows.

  • Get the cluster resource ID using the az aks show command for the cluster named myAKSCluster in the myResourceGroup resource group. Provide your own cluster and resource group name as needed.
  • Use the az account show and az ad user show commands to get your user ID.
  • Finally, assign a role using the az role assignment create command.

The following example assigns the Azure Kubernetes Service Cluster Admin Role to an individual user account:

Tip

If you want to assign permissions to an Azure AD group, update the --assignee parameter shown in the previous example with the object ID for the group rather than a user. To obtain the object ID for a group, use the az ad group show command. The following example gets the object ID for the Azure AD group named appdev: az ad group show --group appdev --query objectId -o tsv

You can change the previous assignment to the Cluster User Role as needed.

The following example output shows the role assignment has been successfully created:

Get and verify the configuration information

With RBAC roles assigned, use the az aks get-credentials command to get the kubeconfig definition for your AKS cluster. The following example gets the --admin credentials, which work correctly if the user has been granted the Cluster Admin Role:

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You can then use the kubectl config view command to verify that the context for the cluster shows that the admin configuration information has been applied:

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Remove role permissions

To remove role assignments, use the az role assignment delete command. Specify the account ID and cluster resource ID, as obtained in the previous commands. If you assigned the role to a group rather than a user, specify the appropriate group object ID rather than account object ID for the --assignee parameter:

Next steps

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For enhanced security on access to AKS clusters, integrate Azure Active Directory authentication.