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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

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flannel pod (k8z_install-cni) giving problems when a new node joins kubernetes cluster (v1.5.1)

I am trying to join a node to my kubernetes cluster using kubeadm I followed this tutorial My kubernetes version is 1.5.1 I got the flannel yaml from this link I didn't get any problem during installation but wen I join a new node I can…
masber
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Pod-to-service communication with Kubernetes and Flannel

I have recently set up a multi-machine Kubernetes cluster w/ Docker and Flannel. I have set up Flannel on a subnet 172.16.0.0/24 such that a container on host A with an assigned IP of 172.16.78.2 can ping a container on host B with an assigned IP of…
agro
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Kubernetes service ip isn't always accessible within cluster (with flannel)

I built a kubernetes cluster, using flannel overlay network. The problem is one of the service ip isn't always accessible. I tested within the cluster, by telneting the service ip and port, ended in connection timeout. Checked with netstat, the…
Raymond
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Kube-api server not coming up on Baremetal

I am trying to install Kubernetes on my laptop by following the instructions on http://kubernetes.io/docs/getting-started-guides/centos/centos_manual_config/ I added the following IP's in /etc/hosts 192.168.121.9 centos-master 192.168.121.65 …
Prashant
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Kubernetes - pod is not getting IP from Flannel CIDR

I've configured Flannel successfully on the worker nodes. When I do ifconfig, on the worker, I see a flannel.1 interface (I'm using vxlan). There are also docker0 and cbr0 interfaces. However, when the pod comes up, the docker container on that…
jeffreyveon
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Setup Flannel for kubernetes in AWS

I'm trying to setup Flannel 0.5 at AWS in order to let pods communicate with each other. I followed the guide at https://coreos.com/blog/introducing-flannel-0.5.0-with-aws-and-gce/ created three "Amazon EC2" instances with AIM, whose role policy is…
Qiaosheng
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Secured communication over flannel in Kubernetes

Starting to experiment with Kubernetes (v1.3.2) I've created an on-premise cluster of 3 CentOS 7 VMs. As I understand, the internal communication in the cluster is by default using flannel overlay network. Is it possible to secure all the intenal…
user5396668
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Kubernetes multinode setup cannot remove docker0 interface

I setup Kubernetes in multinode mode in Ubuntu 14.04 LTS with docker 1.7.1 by following this Guide: http://kubernetes.io/docs/getting-started-guides/docker-multinode/master/ The guide told to Remove the existing Docker bridge by sudo /sbin/ifconfig…
kkpoon
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Kubernetes Endpoints IPs not in range

I have a K8s cluster installed in several RHEL 7.2 VMs. Seems that the installation form yum repository comes without addons. Currently I am facing the following problem almost with any service I am trying to deploy: Jenkins, Kube-ui, …
Daniel Rogatchevsky
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Is it possible to create a CoreOS cluster environment on Ubuntu machines?

I have been using CoreOS for a little while and like the environment I get when running etcd, fleet and flannel. I would like to use these services in a production environment to create a docker cluster. However using CoreOS machines is not an…
Alex Cohen
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flannel error failed to initialize network failed to open tun device

I'm using flannel for the first time and I'm testing it with two nodes (Ubuntu14.04) with etcd running. The ip addresses of the two nodes are 192.168.0.124 (node1) and 192.168.0.127 (node2), and they can ping each other without problem. I have…
Oliver Li
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Kubernetes iptables - should the master node be running pods?

In my kubernetes cluster I have a flannel overlay configured. the iptables on the master node and the minions are not the same. I understand that this is by design but it creates the problem that pods can't run on the master node: on the master,…
ChrisU
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UDP response issues

I'm having an issue with port forwarding UDP traffic in kubernetes. I am running a coreos baremetal setup and in the past just used fleet to run my containers, so these containers to work and my network and port forwarding is setup correctly. I can…
Mike Wilson
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Kubernetes networking issue

I have installed a Kubernetes cluster on VirtualBox (centos7) using a tutorial from here. Here is my setup: kube-master - 10.1.10.152 (etcd, kube-apiserver, kube-controller-manager, kube-scheduler) kube-minion1 - 10.1.10.153 (kube-proxy, kubelet,…
Dmitriy
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kubernetes install on ubuntu close connection in deploying

When I installing kubernetes on 3 ubuntu14.04 node,it going to deploying and suddenly stopped. I had 3 nodes of this cluster: 172.25.2.31 ukub01 172.25.2.32 ukub02 172.25.2.33 ukub03 And I followed this document to…
JSK Zhu
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