Stack Overflow
Stack Overflow

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
0
votes
1 answer

Multi host Container communication with kubernetes and flannel

I am following the following guide http://kubernetes.io/v1.0/docs/getting-started-guides/fedora/flannel_multi_node_cluster.html I get all the way to the very last step when it says to ping a container on another host from a separate container on…
Michael
  • 546
  • 1
  • 7
  • 19
0
votes
1 answer

How do I debug a kube-proxy that's only proxying portal IP traffic to localhost and not other instances?

I'm running CoreOS and trying to get service 1 to talk to service 2. If both service 1 and 2 have launched on the same instance, everything works. However, if service 1 and 2 are scheduled on different instances, no dice. Here's my replication…
Bob Aman
  • 32,839
  • 9
  • 71
  • 95
0
votes
1 answer

golang error: reference to undefined identifier ‘syscall.TUNSETIFF’

So, I have been trying to build flannel (https://github.com/coreos/flannel) with gccgo. Here is the error I am getting while building: $ ./build Building flanneld... #…
Pensu
  • 3,263
  • 10
  • 46
  • 71
-1
votes
2 answers

pods have no access to the internet

I have a freshly created kubernetes cluster set on 2 nodes, both nodes are open to the internet. I can curl, ping etc. any web. The problem appear when I try to do the same from pod. eg. curl to yoururl.com from node returns 200 and some…
RedBluff
  • 43
  • 1
  • 7
-1
votes
1 answer

coredns giving "network is unreachable" errors

I've got a cluster with Flannel as the CNI. As a check to make sure everything was working, I deployed some dnsutils pods, but they can't seem to do any dns resolution: [root@master-node ~]# kubectl exec -ti dnsutils-deployment-7d49b8f56-4n6tk --…
Matthew Tromp
  • 194
  • 2
  • 9
-1
votes
1 answer

How to access pod IP from outside

I'm rookie to k8s. I know the pod IP is set in range by --cluster-cidr. eg. 10.244.0.0/18 My question is how to access the pod IP from outside the k8s cluster. I heard of 2 ways to do that: Make Docker bridge use a self defined Linux bridge, some…
Li Hao Su
  • 23
  • 4
-1
votes
1 answer

Node role is missing for Master node - Kubernetes installation done with the help of Kubespray

After clean installation of Kubernetes cluster with 3 nodes (2 Master & 3 Node) i.e., Masters are also assigned to be worker node. After successful installation, I got the below roles for the node. Where Node role is missing for the masters as…
Kumaran
  • 25
  • 2
  • 6
-1
votes
1 answer

Why does Kubernetes return odd results for ioctl

I have a legacy application that I'm running inside a pod on Kubernetes deployed with kubeadm. The CNI is flannel. The code calls ioctl with SIOCGIFBRDADDR to get the broadcast address of the container interface. In vanilla Docker the correct…
Chris
  • 617
  • 2
  • 6
  • 18
-1
votes
2 answers

Ansible run “kubectl apply kube-flannel.yml" not work

This is the ansible yml, I run it on an ansible control node to apply flannel network of the master node. And I am a root user. - name: Apply flannel network shell: sudo kubectl apply -f /tmp/.ansible/files/kube-flannel.yml And the ansible give…
pocky0719
  • 19
  • 6
-1
votes
1 answer

Google Compute kubernetes only can be access when nodePort on NodePort service is 80

Somehow, I am trying to start a kubernetes project on Google Compute (not GKE). After all installation (read docker-ce, kubelet, kubeadm) I create a Service and a Deployment inside as follows : apiVersion : v1 kind : Service metadata: name:…
thegexploit
  • 37
  • 1
  • 4
-1
votes
1 answer

Kubernetes networking and firewall issue

I try to expose a service. The goal is to access it from a cli (who know nothing about the cluster) with just his ip. I have create a deployment of the image and then create the service by exposing it with nodport type. When I expose it on port 80,…
zonko
  • 31
  • 3
  • 9
-1
votes
1 answer

Kubernetes refuses to work with rkt, containers not starting, wrong systemd error

I have hit a wall trying to setup kubernetes with rkt on coreos when deploying the master node. This is the main problem I see from the kubelet logs...some systemd error which is obviously wrong because coreos latest stable uses 225... I have…
untore
  • 603
  • 8
  • 16
-2
votes
1 answer

Kubernetes: Frequently unable to communicate with kublet api (connection refused)

I'm deploying a new kubernetes cluster on a single node (Ubuntu 22.04) The problem is I frequently get this error when running any kubectl commands (hostnames changed) The connection to the server k8cluster.example.com:6443 was refused - did you…
Aditya K
  • 173
  • 2
  • 9
1 2 3
…
16
17