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Questions tagged [kubernetes]

Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions. Using the concepts of "labels" and "pods", it groups the containers which make up an application into logical units for easy management and discovery.

Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions. Using the concepts of "labels" and "pods", it groups the containers which make up an application into logical units for easy management and discovery.

For more details, visit the official Kubernetes page.

2352 questions
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How to find out PID of the container using crictl

Kubernetes is deprecating Docker as CRI engine. Now there is containerd and CRI-O, which can be used as an alternative to it. Both can be managed via crictl from cri-tools. I need some common way to find the PID of running container. Actually I need…
kvaps
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Worker Group VS Node Group EKS

I am trying to use https://registry.terraform.io/modules/terraform-aws-modules/eks/aws/12.2.0(Terraform AWS EKS provider) What is the difference between worker nodes and node group?
Alex Kok
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Is it possible to change the location of emptyDir volumes?

My kubernetes clusters' nodes all have small root partitions. Is it possible to configure k8s to use an alternate location for emptyDir volumes?
DjPadz
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Google Kubernetes Engine node pool does not autoscale from 0 nodes

I am trying to run a machine learning job on GKE, and need to use a GPU. I created a node pool with Tesla K80, as described in this walkthrough. I set the minimum node size to 0, and hoped that the autoscaler would automatically determine how many…
anna_hope
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WEBRTC MCU/SFU inside kubernetes - Port Ranges?

I am using janus-gateway as a webrtc media server for group videocalling. Previously I had deployed it in a single node using docker-compose but now I want to be able to scale it horizontally. For this, I am trying to use kubernetes but I am facing…
Abdul Basit
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Docker images vs Helm Charts

First of all I apologies because I am developer trying to understand some server stuffs. I request the moderators please don't be harsh if this question doesn't make any sense here. From my understanding we have docker images inside docker hub which…
Imran Qadir Baksh - Baloch
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Kubernetes: relation between Service IP's and pod IP's

I'm trying to understand a bit more about Kubernetes networking. That's why I've deployed a cluster in google cloud and checked the networking: gcloud container clusters describe cluster0 | grep -i cidr clusterIpv4Cidr: 10.20.0.0/14 #…
DenCowboy
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From docker containers to Google Kubernetes

This one is a little theoretical but please bear with me. Currently I have a server running a few Docker containers (4 or 5, depending on day and time). I plan to add another one, just like the first, and maybe even a third one. Now, my question is…
dlyk1988
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enable ephemeral containers AWS EKS

I'm trying to debug a distroless POD by trying kubectl debug which uses ephemeral containers that are disabled by default in aws eks. I'm using aws eks 1.21 ✗ kubectl debug -it opentelemetry-collector-agent-6hqvf --image=busybox…
DmitrySemenov
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containerd 1.4.9 Unimplemented desc = unknown service runtime.v1alpha2.RuntimeService

I have installed containerd 1.4.9 on CentOS steam 8 server. based on this document https://containerd.io/docs/getting-started/. I have created default config file containerd config default > /etc/containerd/config.toml like this. after restarting…
sfgroups
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SECURITY: Should containers run TLS or can they rely on its sidecar?

I wonder how security experts think about making container traffic secure. Let's take a simple K8S cluster as an example. I guess we all agree that running HTTPS instead of HTTP within each container is more secure. I would normally configure a TLS…
xpepermint
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How to setup Mosquitto MQTT Broker in Kubernetes

I have been trying to set up ChirpStack in a Kubernetes space, but it doesn't seem to be working for me, and I can't find any resources online that have been the solution. **chirpstack-application-server-6d6f8d699c-nlrmx 1/1 Running …
J M Smith
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400 Error with nginx-ingress to Kubernetes Dashboard

I have an ingress that connects to Kubernetes Dashboard, but I'm getting a 400 error when trying to access it. --- apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: kubernetes-dashboard namespace: kubernetes-dashboard …
cclloyd
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Can I run a single-node K3S cluster?

I am aware of the consequences and issues with running a single-node cluster. However, I'm still curious if it's possible. I plan on setting everything up myself. In other words, can I run the control plane and a worker node on the same physical…
Mathias Lykkegaard Lorenzen
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What is the difference between objects project and namespace in Openshift 4.x

In openshift 4.x, you have an API for project which seems to be totally similar to namespace in the sense that when you create a project there a namespace created and the other way around. I know namespace is a standard object in kubernetes and…
Baptiste Mille-Mathias
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