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Questions tagged [containerd]

An industry-standard container runtime with an emphasis on simplicity, robustness and portability. It is available as a daemon for Linux and Windows.

containerd is an industry-standard container runtime with an emphasis on simplicity, robustness and portability. It is available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system: image transfer and storage, container execution and supervision, low-level storage and network attachments, etc.

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286 questions
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Can docker and cricontainerd co exist

I have a node which has both docker and cri-containerd installed. When I do docker ps nothing gets listed where as crictl ps lists some containers. Could any one explain in detail how these commands differ. I have ctr installed as well. ctr…
ambikanair
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Latest docker (containerd) updates break everything and all container stopped

All my docker instances are not working anymore because the following error message appears right after the latest containerd updates: Feb 4 14:16:19 ngs-he-site-03 dockerd[830]: time="2023-02-04T14:16:19.524452673Z" level=error msg="failed to…
Eric
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Failed to validate kubelet flags: the container runtime endpoint address was not specified or empty, use --container-runtime-endpoint to set

I am trying to set up a Kubernetes master node. Every time I try to start kubelet I am getting the error message: command failed" err="failed to validate kubelet flags: the container runtime endpoint address was not specified or empty, use…
Yıldırım Türker Şengül
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How to skip TLS cert check for crictl (containerd CR) while pulling the images from private repository

I have installed k8s 1.24 version and containerd (containerd://1.5.9) is the CR for my setup (ubuntu 20.04). I have also installed docker on my VM and have added my private repository under /etc/docker/daemon.json with the following changes: { …
Adarsh kumar yadav
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How to configure Kubernetes "docker on docker" using containerd on Azure

We need to migrate a configuration from Google Cloud Platform to Azure. In GCP, we have Jenkins running in Kubernetes. The Kubernetes worker nodes run on Container-Optimized OS with containerd. This allows us to use the Docker daemon running on the…
Emil Salageanu
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How to pull docker image from a insecure private registry with latest Kubernetes

I am trying to create a k8s pod with a docker container image from a private insecure registry. With the latest K8s, I get ErrImagePull as it complains of http vs https for the insecure registry. Type Reason Age From …
UbflPM
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Containerd port mapping from host to container

I am new to containerd and trying to run a simple application with Containerd. I am using ctr to access images, containers and tasks. In case of a Docker I used to give command as docker run -p 8085:8085 imageId:version This mapped my host to the…
Manzoor
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How to delete container use containerd ctr?

I use sudo ctr container run ... to run a container. But there are something wrong with the process in my container. So I suppose that there is no task is running. I use sudo ctr task ls, it shows, TASK PID STATUS test 0 …
si yan
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How to retrieve the pod/container in which run a given process

Using crictl an containerd, is there an easy way to find to which pod/container belongs a given process, using it's PID` on the host machine? For example, how can I retrieve the name of the pod which runs the process below…
Fabrice Jammes
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Container fails to download gradle

My host machine is a Windows 11 with WSL2. I installed Rancher Desktop v0.7.1 With the containerd(nerdctl(v 0.15.0)) option and Kubernetes v1.23.1(latest) Then I tried to build the following Dockerfile # syntax=docker/dockerfile:experimental #FROM…
saavedrah
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Not able to exec into container

I am not able to exec into container which uses containerd as runtime. I need to check some processes running inside the container. Is there any way to exec into container? I am able to list containers using ctr cli. Any help would be appreciated.
Snehal Hodage
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Importing images with CTR fails silently

I exported docker images in .tar format. Then importing those images using K3S and ctr showed no results : $ sudo k3s ctr i import myimage.tar $ No output from import cmd ? $ sudo k3s ctr i ls $ Nothing there....
Doctor
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Where do the log files live in a K8s cluster using the Containerd runtime?

I'm using the AKS cluster with version 1.19, and I found that this version of K8s using Containerd instead of Dockershim as the container runtime. I also use Fluentd to collect logs from my spring apps, with k8s version 1.18 it works okay, but with…
Nam Nguyen
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Microk8s ImagePullBackOff cannot be fixed by modifying the config

I have installed a microk8s to ubuntu (arm64 bit version), I would like to access my local image registry provided by the microk8s enable registry. But I get a ImagePullBackOff error, I have tried to modify…
Dániel Kis
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Kubernetes containerd - failed to pull image from private registry

I setup kubernetes V1.20.1 with containerd instead of Docker. Now I failed to pull Docker images from my private registry (Harbor). I already changed the /etc/containerd/config.toml like this: [plugins."io.containerd.grpc.v1.cri".registry] …
Ralph
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