2,710 questions with Azure Kubernetes Service tags

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0 answers

AKS konnectivity-agent tunnel instability causing intermittent 503s on admin operations

Cluster aks-asclepius-prod (resource group rg-aks, East US 2, K8s 1.35.1, private cluster with KMS etcd encryption) experiences persistent konnectivity tunnel failures. Symptoms: konnectivity-agent pods enter cannot connect once error loops, unable…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-09T02:51:53.66+00:00
Bernard Kowalski 0 Reputation points
commented 2026-04-09T17:46:39.7033333+00:00
Bernard Kowalski 0 Reputation points
0 answers

Node restarted after being marked as NotReady

Our node was suddenly marked as NotReady, which then caused it to restart. It has been running with no issues over the past weeks, and no changes in its configuration are done. Our node is running on version v1.34.2 We have disabled the automatic OS…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-08T15:41:20.7333333+00:00
Dimitris Bratsos 0 Reputation points
commented 2026-04-09T14:54:09.81+00:00
Ankit Yadav 13,135 Reputation points Microsoft External Staff Moderator
1 answer

Azure Kubernetes Fleet Manager: L4 Load Balancing (MCS) Traffic Failing for Specific Member Cluster

I'm currently testing the Multi-cluster L4 load balancing using Azure Kubernetes Fleet Manager. While the setup is partially working, I'm encountering a connectivity issue with one of the member clusters. 1. Environment Setup Fleet Manager: Hub-cluster…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-09T03:12:10.7266667+00:00
김선교 0 Reputation points
commented 2026-04-09T05:49:15.81+00:00
Jilakara Hemalatha 11,600 Reputation points Microsoft External Staff Moderator
1 answer

Node restarted after being marked as NotReady

Posting this question again, as I was not allowed to comment under my already existing question. Our node was suddenly marked as NotReady, which then caused it to restart. It has been running with no issues over the past weeks, and no changes in its…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-08T18:36:39.43+00:00
Dimitris Bratsos 0 Reputation points
edited a comment 2026-04-08T18:45:30.1666667+00:00
Himanshu Shekhar 5,225 Reputation points Microsoft External Staff Moderator
1 answer

**Title:** Orphaned AzureKubernetesService serviceAssociationLink blocking subnet and VNet deletion after AKS cluster is gone

@AzureSupport Hi, I have an orphaned serviceAssociationLink on a subnet that is blocking deletion of the subnet, VNet, and resource group. The AKS cluster no longer exists but the SAL remains with "allowDelete": false — making it impossible to…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-05T07:10:16.1966667+00:00
Abdul Hameed A 0 Reputation points
commented 2026-04-08T14:03:08.28+00:00
Nikhil Duserla 9,685 Reputation points Microsoft External Staff Moderator
1 answer

AKS Node Auto Provisioning - NAP

Hello. We have an app deployed on AKS that is pre scaled on our peak business days. It would scale to hundreds of nodes on peak business days. There are multiple node pools for different services. Since NAP is GA, we decide to test it out. NAP is not an…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-02T05:23:43.03+00:00
Subin 0 Reputation points
edited a comment 2026-04-08T10:59:39.5833333+00:00
Subin 0 Reputation points
2 answers

Why discrepency in node pool IP ranges with azure cni in AKS

I am seeing details as below related to networking in AKS But i see node ips as below not from above CIDR range right? why? Please clarify

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-31T05:34:55.8833333+00:00
Varma 1,560 Reputation points
commented 2026-04-08T09:54:16.3333333+00:00
Manish Deshpande 5,420 Reputation points Microsoft External Staff Moderator
0 answers

Unable to Delete an AKS Cluster Due to Circular Dependencies

When deleting the cluster (present in East US region) I am getting this error: Network security group /subscriptions/.../providers/Microsoft.Network/networkSecurityGroups/NRMS-t5beisocfdtvwAKS-...-AKS-SUBNET cannot be deleted because it is in use by the…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-08T07:44:17.9366667+00:00
Yogesh Prajapat 0 Reputation points Microsoft Employee
commented 2026-04-08T09:45:38.0633333+00:00
Yogesh Prajapat 0 Reputation points Microsoft Employee
1 answer

Orphaned AzureKubernetesService serviceAssociationLink on subnet after AKS deletion — cannot delete subnet or VNet

Title: Orphaned AzureKubernetesService serviceAssociationLink blocking subnet and VNet deletion after AKS cluster is gone Subscription ID: Problem: I am unable to delete a subnet or its parent VNet because of a stale…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-05T06:57:13.1033333+00:00
Abdul Hameed A 0 Reputation points
edited the question 2026-04-07T03:31:07.83+00:00
Jilakara Hemalatha 11,600 Reputation points Microsoft External Staff Moderator
1 answer

In-Place Migration Failed for an AKS Cluster

I am performing a migration of an existing AKS cluster from the kubenet network plugin to Azure CNI overlay, as the cluster uses Calico for network policy. Based on Microsoft guidance, the migration involves the following steps: Remove Calico Update…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-27T04:12:54.5066667+00:00
Aniket Pandey (c) 0 Reputation points
commented 2026-04-06T18:18:31.6766667+00:00
Naveena Patlolla 9,315 Reputation points Microsoft External Staff Moderator
3 answers

Way to test virtual nodes usage in AKS

I want to test virtual nodes usage , is there any that i can create that scenario in my own lab before takes to prod. if yes please suggest

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-13T09:37:48.68+00:00
Varma 1,560 Reputation points
commented 2026-04-06T17:37:23.31+00:00
Himanshu Shekhar 5,225 Reputation points Microsoft External Staff Moderator
1 answer

AKS Fails to provision E4as_v7 but will provision E4as_v6

"REDACTED cluster information" NodePool: Custom NodePool requesting Standard_E4as_v7 (4c/32GB), on-demand, capacity-type on-demand, zones 1/2/3 Behavior: Karpenter creates NodeClaims, Azure returns InsufficientCapacityError ("all requested…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-02T15:16:38.59+00:00
Alden Haight 0 Reputation points
edited an answer 2026-04-06T09:24:49.6+00:00
Ankit Yadav 13,135 Reputation points Microsoft External Staff Moderator
1 answer

AKS Node Image Upgrade Failures

Hello Support Team, We are experiencing issues with node image upgrades across the Azure Kubernetes Service (AKS) clusters. On 24th March, the scheduled node image upgrades failed across all Kubernetes clusters. The logs show the following message:…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-25T16:13:54.1533333+00:00
Andreea Stoenescu 20 Reputation points
edited a comment 2026-04-03T16:18:09.7466667+00:00
Ankit Yadav 13,135 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

network-plugin & settings for large AKS cluster?

I'm trying to create a large AKS cluster with 1k nodes. I'm running this command: az aks create --name myname --location mylocation --enable-managed-identity --nodepool-name default --resource-group myresourcegroup --node-vm-size Standard_B2s…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-01T17:53:26.34+00:00
Zach Howell 115 Reputation points
commented 2026-04-02T17:48:35.89+00:00
Jilakara Hemalatha 11,600 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

AKS (Azure CNI) – Why are Pod and Node CIDR ranges different?

I created an AKS cluster using Azure CNI with the following commands: az network vnet create -g RG -n aks-vnet --address-prefix 10.10.0.0/16 az network vnet subnet create -g RG --vnet-name aks-vnet -n aks-node-subnet --address-prefixes 10.10.1.0/24 az…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-02T05:17:38.5566667+00:00
Varma 1,560 Reputation points
accepted 2026-04-02T12:03:33.1666667+00:00
Varma 1,560 Reputation points
1 answer

AKS Node OS Image Update caused production outage

AKS Node OS Image Update causes production outage – Eraser Controller issue & Maintenance Window too long Cluster: AAE | Region: Switzerland North | K8s Version: 1.32.10 Incident On 01.04.2026, the automatic Node OS Image Update caused a…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-04-01T09:20:12.1366667+00:00
Sophie Yavuz 0 Reputation points
answered 2026-04-02T11:40:26.6333333+00:00
Sophie Yavuz 0 Reputation points
1 answer

What is the official maintenance and deprecation status of the mcr.microsoft.com/azure-oss-db-tools/pgbouncer-sidecar Docker image?

Hello Azure Database team, I am reaching out to inquire about the active development and support status of the officially published PgBouncer sidecar Docker image: mcr.microsoft.com/azure-oss-db-tools/pgbouncer-sidecar (available on Docker Hub as…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-27T14:33:46.75+00:00
Gaurav Agrawal 0 Reputation points
edited the question 2026-04-02T09:21:02.2033333+00:00
Nikhil Duserla 9,685 Reputation points Microsoft External Staff Moderator
2 answers

Azure Kubernetes Service clusters should have Defender profile enabled

Azure Kubernetes Service clusters should have Defender profile enabled .we have already enabled the defender for containers and deployment sensors for the subscriptions. To remediate this recommendation. Apart from the quick fix option . Is there any way…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-23T07:17:51.0766667+00:00
Sruthisha J M 0 Reputation points
commented 2026-04-01T04:52:37.51+00:00
Manish Deshpande 5,420 Reputation points Microsoft External Staff Moderator
2 answers

AKS cluster stuck due to long-running operation not completing. az aks update hangs, nodepool stuck in Updating/Cancelled, VMSS looping.

AKS cluster stuck due to long-running operation not completing. az aks update hangs, nodepool stuck in Updating/Cancelled, VMSS looping. How to solve this ?. This is what has been suggested... "Request backend LRO cleanup and control plane…

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-22T21:21:36.5633333+00:00
commented 2026-04-01T04:41:43.9033333+00:00
Manish Deshpande 5,420 Reputation points Microsoft External Staff Moderator
1 answer

My application gateway is not exposing the service endpoints hosted on my private AKS cluster

Perhaps I am missing something in the listener and backend configuration, but not sure. I am not able to configure the endpoints, and the backend always results into 502 error.

Azure Kubernetes Service
Azure Kubernetes Service

An Azure service that provides serverless Kubernetes, an integrated continuous integration and continuous delivery experience, and enterprise-grade security and governance.

2,710 questions
asked 2026-03-17T09:35:51.6633333+00:00
cargobuddy 20 Reputation points
commented 2026-03-30T12:00:40.73+00:00
cargobuddy 20 Reputation points