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Questions tagged [flannel]

flannel (originally rudder) is an etcd backed network fabric for containers, an overlay network that gives a subnet to each machine for use with Kubernetes

253 questions
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Flannel compatiblity with etcd v3.0

I am planning to migrate our Kubernetes instance to etcd v3. Do you know if Flannel will work with etcd v3?
ekbek
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Should Flannel run on a Kubernetes master?

I've successfully deployed a Kubernetes 1.3.5 cluster on 1 master + 6 nodes (all running CentOS) including the DNS and Kubernetes Dashboard addons. Everything seemed to be working OK at first. However, when I tried to run kubectl proxy…
Tony E. Stark
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Responses from kubernetes containers getting lost

I have installed kubernetes on openstack. The setup has one master and one node on coreos. I have a pod hosting an SIP application on UDP port 5060 and I have created service as NODEPORT on 5060. The spec: "spec": { "ports": [ { …
user3275095
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Kubernetes, Flannel and exposing services

I have a kubernetes setup running nicely, but I can't seem to expose services externally. I'm thinking my networking is not set up correctly: kubernetes services addresses: --service-cluster-ip-range=172.16.0.1/16 flannel network config: etcdctl get…
jaxxstorm
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Kube-Proxy and Kube-Flannel CrashLoopBackOff

I have a Kubernetes Cluster in an on-premise server, I also have a server on Naver Cloud lets call it server A, I want to join my server A to my Kubernetes Cluster, the server can join normally, but the kube-proxy and kube-flannel pods spawned from…
Rahandi Noor Pasha
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Kube-Proxy-Windows CrashLoopBackOff

Installation Process I am all new to Kubernetes and currently setting up a Kubernetes Cluster inside of Azure VMs. I want to deploy Windows containers, but in order to achieve this I need to add Windows worker nodes. I already deployed a Kubeadm…
Twan Veldhuis
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Kubernetes: Unable to access flannel pod

I am new to Kubernetes. I have set up 3 Ubuntu 20.04.2 LTS VMs on Oracle Virtualbox Manager. I have installed docker, kubelet, kubeadm, and kubectl in all 3 VMs according to the following…
learning
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Why does Kubernetes pod CPU usage vary drastically between nodes (DaemonSets)?

Preface: I'm a Kubernetes novice standing up their own cluster at home, I have 1 master and 3 worker nodes. I'm struggling to determine why some of my pods managed by DaemonSets are using more CPU than their counterparts on other nodes. Here's an…
Forreyer
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Kubernetes cluster with flannel - port forwarding

Setup on machine: Ubuntu 20.04 Kubernetes cluster started with kubeadm and flannel network plugin On my working machine I installed Jenkins on cluster and want to configure network to be able to access jenkins from port 8081. By default it's…
OLA
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Using kubespray to install kubernetes always fails, which looks like a bug

I use kubespray（v2.11.0） install kubernetes（1.14.0）.I have three vm.(plan two master,one nodes) Due to network reasons, I used the internal image repo and storage server. then i exec “ansible-playbook -i inventory/mycluster/hosts.yaml --become…
Esc
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Scrape CoreDNS metrics with External Prometheus

I have a kubernetes cluster(built with Typhoon module) and a Prometheus instance in different VPC(running on docker-compose, not on Kubernetes cluster). I have the vpc peering connection enabled and required ports are open to this vpc. All the…
Vamshi Siddarth
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Kubernetes DNS fails to resolve most of the times but sometimes it works. What can i do to solve this?

Kubernetes not able to resolve DNS. Container/Pods not able to access Internet. I have a Kubernetes 2 node cluster on separate AWS EC2 instances (t2.Medium) container networking has been done using: Flannel version: flannel:v0.10.0-amd64…
Manik Malhotra
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Kubernetes pod cannot access service which is running on another node

I'm trying to setup a k8s cluster. I've already deployed an ingress controller and a cert manager. However, currently I'm trying to deploy a first small service (Spring Cloud Config Server) and noticed that my pods cannot access services that are…
Dennis
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Change kubernetes --service-cluster-ip-range after the cluster is initialized

After initializing kubernetes multimaster cluster I realized that my --service-cluster-ip-range overlaps with actual hosts subnet. A lot of services IPs are overlaping with actual kube node hosts IPs. Now because of that I see a lot of issues in…
Mher Harutyunyan
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Is it ok that Flanneld is listening on public interface udp port 8472?

Security-wise, is it OK, that flanneld is listening on the public interface udp port 8472? Normally kubernetes nodes live in the cloud, hidden behind dozens of firewalls, they mostly operate in their local virtual network and only expose ports to…
NarūnasK
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