Questions tagged [cni]

The Container Network Interface (CNI) is a library definition, and a set of tools under the umbrella of the Cloud Native Computing Foundation project

Reference:

135 questions
3
votes
1 answer

calico network connectivity failing between pods and services and pods in different hosts

I have implemented a multi master HA kubernetes cluster and wanted to implement the Calico the hardway as described in here. I was able complete all the steps and my connectivity is not there between the pods and services and pods and other pods in…
3
votes
1 answer

Is CNI still needed when service mesh is used in kubernetes?

Is CNI ( e.g. Flannel, Calico) is still needed once I start using a service mesh ( e.g. Istio) at Kubernetes clusters?
J.J. Beam
  • 2,612
  • 2
  • 26
  • 55
3
votes
1 answer

How to get the ip of the user based on interaction with pod in K8s

I want to get the IP of the user(client) based on his interaction with the Pods, (I'm thinking about getting the user IP and locate him based on his IP) I made the figure below for a better explanation of my question, the only thing I was able to…
3
votes
4 answers

Kubernetes - Calico-Nodes 0/1 Ready

We are deploying Jenkins on the K8s env, with 1 master and 4 worker nodes using calico network plugin, the pods are created on the time of Job run in Jenkins, but the issue is hostnames don't resolve, no error logs in Jenkins, on checking the pods,…
Sanjay M. P.
  • 919
  • 1
  • 16
  • 33
3
votes
1 answer

How to verify cluster network policy configuration/support

I'm trying to figure out which the best approach to verify the network policy configuration for a given cluster. According to the documentation Network policies are implemented by the network plugin, so you must be using a networking solution…
Crixo
  • 3,060
  • 1
  • 24
  • 32
3
votes
1 answer

Kubernetes 1.15.5 and romana 2.0.2 getting network errors when ANY pods added or removed

I have encountered some mysterious network errors in our kubernetes cluster. Although I originally encountered these errors using ingress, there are even more errors when I bypass our load balancer, bypass kube-proxy and bypass nginx-ingress. The…
3
votes
2 answers

Which CNI is best for running the .net core application with external sql server in kubernate deployment?

I need to use best-suited cni for Dotnet core with SQL server(Same Network but different IP) Kubernetes deployment.
3
votes
1 answer

Default CNI in Minikube

I try to understand the Kubernetes network and I am now wondering if a CNI is used per default when installing Minikube and when yes which one? In other words, can I run Minikube without a CNI provider like Flannel or Calico?
ammerzon
  • 998
  • 1
  • 13
  • 30
3
votes
1 answer

Kubernetes postStart lifecycle hook blocks CNI

My workload needs network connectivity to start properly and I want to use a postStart lifecycle hook that waits until it is ready and then does something. However, lifecycle hooks seem to block CNI; the following workload will never be assigned an…
dippynark
  • 2,743
  • 20
  • 58
2
votes
1 answer

How to configure the primary_slave in a bond interface created by bond-cni plugin in kubernetes

The question is what is exposed in the title, I am trying to create a bond in a kubernetes pod with the bond-cni plugin. The configuration of the plugin is a little bit basic so I have changed the function in which the bond is created: original…
juangas
  • 21
  • 1
2
votes
1 answer

How to make Terraform continue with execution and ignore an error with resource creation during terraform apply?

I am installing CNI using null_resource in terraform. Now if the CNI is already installed the terraform script fails with error: exit status 254. Output: │ An error occurred (ResourceInUseException) when calling the CreateAddon │ operation: Addon…
2
votes
1 answer

I wonder the difference between kube-proxy and cni

I wonder the difference between kube-proxy and cni. Does calico also use iptables to set policies? In this case, the role overlaps with the kube-proxy, what's the difference between the two? Why kube-proxy disable for Calico eBPF mode? Since…
JungGyu Oh
  • 21
  • 1
2
votes
1 answer

How do I find which CNI plugin is my k8s is using? Where is its config file(s)?

How can I find easily which CNI plugin is configured and where is the config file associated with it?
maiky
  • 3,503
  • 7
  • 28
  • 28
2
votes
2 answers

Kubernetes Container runtime network not ready

I installed a Kubernetes cluster of three nodes, the control node looked ok, when I tried to join the other two nodes the status for both of is: Not Ready On control node: [root@alva-anstawx01 /]# kubectl get nodes NAME …
alvsam
  • 23
  • 1
  • 1
  • 6
2
votes
1 answer

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…
1
2
3
8 9