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Questions tagged [calico]

68 questions
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kubeadm based kubernetes (v1.24.2) worker nodes are still in "NotReady" status even after installing calico CNI ("Error querying BIRD")

kubeadm based kubernetes (v1.24.2) worker nodes are still in "NotReady" status even after installing calico CNI ("dial unix /var/run/bird/bird.ctl: connect: no such file or directory") I have deployed calico CNI on kubeadm based kubernetes cluster…
Allan K
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kubeadm based kubernetes Get "https://10.96.0.1:443/api?timeout=32s": dial tcp 10.96.0.1:443: connect: no route to host

I have deployed a kubeadm based kubernetes cluster v1.24.3 which consists of one control-plane node and 3 worker nodes (all Centos 7 VMs). These are all "on premises" on a single physical node. On this setup, I am trying to deploy a CNI network…
Allan K
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Calico HA cluster - not-ready:NoSchedule

Installed Calico on a K8s HA cluster Note: same installation worked on single node installation, removing taint. But in a HA Cluster it does only have taint: node.kubernetes.io/not-ready:NoSchedule kubectl create -f…
Chris G.
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Calico Kubernetes Network Policy is denying all traffic and not working as expected

I am trying to implement some Calico based Kubernetes Network Policies. I have already setup Calico in my cluster and all the Calico based pods are running fine. In my cluster, There are two pods. 1. An Nginx pod 2. An Apache pod My requirement is…
arjunbnair
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Calico deployment not saving tolerance for master node

I was trying to setup a Kubernetes Cluster using Amazon EC2 and Kubeadm. I created a 't2.large' EC2 instance based on Ubuntu 18.04 AMI. Setup kubeadm, kubelet, kubectl and docker as the container runtime. Ran the kubeadm init…
arjunbnair
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How to re-trigger failed flannel to calico migration?

I have a 3 node kubernetes cluster with k8s 1.22 version with flannel setup and running fine. I did run live migration steps from flannel to calico as describes in here. Cluster migrated to calico successfully. However when I tried multiple times,…
Siddharood
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Maximum throughput between Kubernetes pods with LACP bonding

We currently have a kubernetes cluster (using calico) where all worker nodes are connected together with lacp bonds (2x10GB links with LACP Mode 4 - 802.3ad). However, the maximum throughput we manage to get between 2 pods is 10 GB/s. According to…
E. Jaep
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K8s nodeLocalDns pod times out connecting to coreDns after upgrading base os to ubuntu20.04 ConnectX-4 card

Team, I have Mellanox Nic ConnectX-4 on a k8s worker node and it hosts a nodeLocal dns pod on it. The nodeLocalDns pod is timing out when trying to connect to coreDns service on k8s cluster. Same works on Ubuntu18. Versions failing with k8s v1.13.5…
AhmFM
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Changing the name of a single Kubernetes master with a temporary master

I have a lab environment for studying Kubernetes. It has Calico CNI installed. Kuberentes version: 1.20. I would like to rename the single master node in the cluster. Preferably, without recreating the whole Kubernetes cluster or overriding the…
jwalker
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Calicoctl rejecting certificate on fresh k3s install

I have a fresh install of Ubuntu, a fresh install of k3s, and a fresh download of calicoctl. I have installed it the following way. curl -sfL https://get.k3s.io | K3S_KUBECONFIG_MODE="644"\ INSTALL_K3S_EXEC="--flannel-backend=none…
P H Kaznowski
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apply calico manifest through ansible kubernetes core module

I am trying to install calico on an existing single-node kubernetes cluster (installed through kubeadm). The two manifests are tigera-operator and custom-resources. This works fine if I manually install it through kubectl: kubectl -f apply…
Lethargos
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Cannot reach pod from pod in some machines but tunnel in node is reached

I have a pod with a cluster IP of 10.233.70.35 in a bare metal Kubernetes 1.19 cluster with Calico 3.16.9 as CNI. Let's call this Pod A. In most nodes (which is different from the node of Pod A), a pod (Pod B) in the same Kubernetes namespace can…
Christian Alis
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Assign pod an IP address which the same as the IP range of the k8s node

Is that possible to assign pod an IP address which the same as the IP range of my K8s node? For example: I have an on-premise K8s cluster that includes 3 work nodes. All nodes are using the 10.138.1.0/24 IP range as INTERNAL-IP. It is the IP address…
ITnewbie
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Calico pod with CrashLoopBackOff caused by service account

I have Calico installed on my cluster but a few days ago pod routing stopped working. I noticed the calico pods went offline and from the logs I got this: 2021-07-12 08:36:43.524 [INFO][1] main.go 92: Loaded configuration from environment…
mai_sicuel
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k8s loadbalancer service with externalTrafficPolicy=local passes through client ip on IPv4, hides it on IPv6

I'm having trouble getting a kubernetes IPv6 SingleStack LoadBalancer service passing through the correct source IP address to pods. It works fine on a sister IPv4 SingleStack LoadBalancer that passes traffic to the same pods. The cluster is a…
growse
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