May 19, 2019 Azure Kubernetes Service aka (AKS) is a managed service provided by Microsoft Azure to deploy micro-service applications quickly and managed those apps with less administrative efforts. With a Kubernetes release of v1.14 it enable the production level support for windows nodes and containers. With this announcement, AKS team announce the Windows server container support for the v1.13.5. I try to pull image from an ACR using a secret and I can't do it. I created resources using azure cli commands: az login az provider register -n Microsoft.Network az provider register -n Microsoft.Storage az provider register -n Microsoft.Compute az provider register -n Microsoft.ContainerService az group create -name aksGroup -location westeurope az aks create -resource-group aksGroup. Az aks create -resource-group myResourceGroup -name myAKSCluster -node-count 1 -enable-addons monitoring -generate-ssh-keys After a few minutes, the command completes and returns JSON-formatted information about the cluster. Connect to the cluster. To manage a Kubernetes cluster, you use kubectl, the Kubernetes command-line client.
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- Az Aks Generate-ssh-keys 2017
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- Az Aks Generate-ssh-keys Map
- To configure your virtual machine availability set-based AKS cluster for SSH access, find the name of your cluster's Linux node, and add your SSH public key to that node. Use the az aks show command to get the resource group name of your AKS cluster, then the az vm list command to list the virtual machine name of your cluster's Linux node.
- You can find the SSH keys from the output of this command az aks create. After you run this command, you can find your ssh key in that output. You can find it in this path.
When you're using Azure Container Registry (ACR) with Azure Kubernetes Service (AKS), an authentication mechanism needs to be established. This article provides examples for configuring authentication between these two Azure services.
You can set up the AKS to ACR integration in a few simple commands with the Azure CLI. This integration assigns the AcrPull role to the service principal associated to the AKS Cluster.
Before you begin
These examples require:
- Owner or Azure account administrator role on the Azure subscription
- Azure CLI version 2.0.73 or later
To avoid needing an Owner or Azure account administrator role, you can configure a service principal manually or use an existing service principal to authenticate ACR from AKS. For more information, see ACR authentication with service principals or Authenticate from Kubernetes with a pull secret.
Create a new AKS cluster with ACR integration
You can set up AKS and ACR integration during the initial creation of your AKS cluster. To allow an AKS cluster to interact with ACR, an Azure Active Directory service principal is used. The following CLI command allows you to authorize an existing ACR in your subscription and configures the appropriate ACRPull role for the service principal. Supply valid values for your parameters below.
Alternatively, you can specify the ACR name using an ACR resource ID, which has the following format:
/subscriptions/<subscription-id>/resourceGroups/<resource-group-name>/providers/Microsoft.ContainerRegistry/registries/<name>
This step may take several minutes to complete.
Configure ACR integration for existing AKS clusters
Integrate an existing ACR with existing AKS clusters by supplying valid values for acr-name or acr-resource-id as below.
or,
You can also remove the integration between an ACR and an AKS cluster with the following
or
Working with ACR & AKS
Import an image into your ACR
Import an image from docker hub into your ACR by running the following:
Deploy the sample image from ACR to AKS
Ensure you have the proper AKS credentials
Create a file called acr-nginx.yaml that contains the following:
Next, run this deployment in your AKS cluster:
You can monitor the deployment by running:
You should have two running pods.
-->Throughout the lifecycle of your Azure Kubernetes Service (AKS) cluster, you may need to access an AKS node. This access could be for maintenance, log collection, or other troubleshooting operations. You can access AKS nodes using SSH, including Windows Server nodes (currently in preview in AKS). You can also connect to Windows Server nodes using remote desktop protocol (RDP) connections. For security purposes, the AKS nodes aren't exposed to the internet. To SSH to the AKS nodes, you use the private IP address.
![Generate-ssh-keys Generate-ssh-keys](/uploads/1/2/5/8/125874315/595727307.jpg)
This article shows you how to create an SSH connection with an AKS node using their private IP addresses.
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.
By default, SSH keys are obtained, or generated, then added to nodes when you create an AKS cluster. This article shows you how to specify different SSH keys than the SSH keys used when you created your AKS cluster. The article also shows you how to determine the private IP address of your node and connect to it using SSH. If you don't need to specify a different SSH key, then you may skip the step for adding the SSH public key to the node.
This article also assumes you have an SSH key. You can create an SSH key using macOS or Linux or Windows. If you use PuTTY Gen to create the key pair, save the key pair in an OpenSSH format rather than the default PuTTy private key format (.ppk file).
You also need the Azure CLI version 2.0.64 or later installed and configured. Run
az --version
to find the version. If you need to install or upgrade, see Install Azure CLI.Configure virtual machine scale set-based AKS clusters for SSH access
To configure your virtual machine scale set-based for SSH access, find the name of your cluster's virtual machine scale set and add your SSH public key to that scale set.
Use the az aks show command to get the resource group name of your AKS cluster, then the az vmss list command to get the name of your scale set.
The above example assigns the name of the cluster resource group for the myAKSCluster in myResourceGroup to CLUSTER_RESOURCE_GROUP. The example then uses CLUSTER_RESOURCE_GROUP to list the scale set name and assign it to SCALE_SET_NAME.
![Generate ssh rsa key Generate ssh rsa key](/uploads/1/2/5/8/125874315/249700973.png)
Important
At this time, you should only update your SSH keys for your virtual machine scale set-based AKS clusters using the Azure CLI.
For Linux nodes, SSH keys can currently only be added using the Azure CLI. If you want to connect to a Windows Server node using SSH, use the SSH keys provided when you created the AKS cluster and skip the next set of commands for adding your SSH public key. You will still need the IP address of the node you wish to troubleshoot, which is shown in the final command of this section. Alternatively, you can connect to Windows Server nodes using remote desktop protocol (RDP) connections instead of using SSH.
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To add your SSH keys to the nodes in a virtual machine scale set, use the az vmss extension set and az vmss update-instances commands. Private key public key certificate.
The above example uses the CLUSTER_RESOURCE_GROUP and SCALE_SET_NAME variables from the previous commands. The above example also uses ~/.ssh/id_rsa.pub as the location for your SSH public key.
Note
By default, the username for the AKS nodes is azureuser.
After you add your SSH public key to the scale set, you can SSH into a node virtual machine in that scale set using its IP address. View the private IP addresses of the AKS cluster nodes using the kubectl get command.
The follow example output shows the internal IP addresses of all the nodes in the cluster, including a Windows Server node.
Record the internal IP address of the node you wish to troubleshoot.
To access your node using SSH, follow the steps in Create the SSH connection.
Configure virtual machine availability set-based AKS clusters for SSH access
To configure your virtual machine availability set-based AKS cluster for SSH access, find the name of your cluster's Linux node, and add your SSH public key to that node.
Use the az aks show command to get the resource group name of your AKS cluster, then the az vm list command to list the virtual machine name of your cluster's Linux node.
The above example assigns the name of the cluster resource group for the myAKSCluster in myResourceGroup to CLUSTER_RESOURCE_GROUP. The example then uses CLUSTER_RESOURCE_GROUP to list the virtual machine name. The example output shows the name of the virtual machine:
To add your SSH keys to the node, use the az vm user update command.
The above example uses the CLUSTER_RESOURCE_GROUP variable and the node virtual machine name from previous commands. The above example also uses ~/.ssh/id_rsa.pub as the location for your SSH public key. You could also use the contents of your SSH public key instead of specifying a path.
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Note
By default, the username for the AKS nodes is azureuser.
After you add your SSH public key to the node virtual machine, you can SSH into that virtual machine using its IP address. View the private IP address of an AKS cluster node using the az vm list-ip-addresses command.
The above example uses the CLUSTER_RESOURCE_GROUP variable set in the previous commands. The following example output shows the private IP addresses of the AKS nodes:
Create the SSH connection
To create an SSH connection to an AKS node, you run a helper pod in your AKS cluster. This helper pod provides you with SSH access into the cluster and then additional SSH node access. To create and use this helper pod, complete the following steps:
- Run a
debian
container image and attach a terminal session to it. This container can be used to create an SSH session with any node in the AKS cluster:TipIf you use Windows Server nodes (currently in preview in AKS), add a node selector to the command to schedule the Debian container on a Linux node:kubectl run -it --rm aks-ssh --image=debian --overrides='{'apiVersion':'apps/v1','spec':{'template':{'spec':{'nodeSelector':{'beta.kubernetes.io/os':'linux'}}}}}'
- Once the terminal session is connected to the container, install an SSH client using
apt-get
: - Open a new terminal window, not connected to your container, copy your private SSH key into the helper pod. This private key is used to create the SSH into the AKS node.If needed, change ~/.ssh/id_rsa to location of your private SSH key:
- Return to the terminal session to your container, update the permissions on the copied
id_rsa
private SSH key so that it is user read-only: - Create an SSH connection to your AKS node. Again, the default username for AKS nodes is azureuser. Accept the prompt to continue with the connection as the SSH key is first trusted. You are then provided with the bash prompt of your AKS node:
Az Aks Generate-ssh-keys 2017
Remove SSH access
When done,
exit
the SSH session and then exit
the interactive container session. When this container session closes, the pod used for SSH access from the AKS cluster is deleted.Generate Ssh Key Windows
Next steps
Az Aks Generate-ssh-keys Map
If you need additional troubleshooting data, you can view the kubelet logs or view the Kubernetes master node logs.