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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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ContainerD nodes in GKE based on Windows

Is there a tutorial, manual, or instructions on how to get started using ContainerD as a primary tool to build images for K8S (on Windows) since Google Kubernetes is abandoning Docker-based Windows nodes and recommending switching to ContainerD…
Alex F
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How to use containerd?

I want to start with containerd, but I always get one of these two errors: time="2022-05-18T18:08:58+02:00" level=fatal msg="cannot access containerd socket \"\\\\\\\\.\\\\pipe\\\\containerd-containerd\": open \\\\.\\pipe\\containerd-containerd: The…
Luxvoo
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How to restrict core file size in container on k8s cluster with containerd?

I want to restrict the size of core file for every container on my k8s cluster. My k8s cluster is v1.20 and using containerd 1.5 I tried to build docker file with command ulimit -c 0 But when the container is created and I send a command ulimit -c…
JAESANGPARK
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how to get the dangling images using crictl

how to using crictl to get the dangling images? The server was not install docker right now. is it possible to using crictl to get the dangling images? I have tried to using this command: crictl images but could not recognized which images could be…
Dolphin
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Can not start ContainerD container on Windows

I've been following Gentle ContainerD on Windows Guide For You to setup ContainerD on my Windows 10 machine but somehow I can not start any example from this tutorial. Command is: crictl.exe runp --runtime runhcs-wcow-process…
Alex F
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Why I can't see pause containers in GKE containerd CRI?

I am using a GKE cluster with Ubuntu nodes & containerd as CRI. I am not able to see any pause containers the way we used to see in docker. Are they no more exists in containerd? Anything changed or I am not aware…
Asad Khan
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How to run Testcontainers in Containerd without any error (from Kubernetes 1.20)?

Since Kubernetes 1.20, Docker support is deprecated and will be totally removed from 1.24. We use GKE to manage Kubernetes so the upgrade will be done automatically. As far as I've read, developers should not have been impacted but we made tests in…
François Delbrayelle
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Need to get "created" date in crictl images - List images call

Need to add CreateDate column in the below output as like we get in docker images but unable to figure out a good way. --help also doesn't seem to show suitable option to consider for my requirement. root@ip-10-xx-x-xxx:/home/ubuntu# crictl images…
Ashish khare
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How can I load multiple tar images using nerdctl? (containerd)

There are around 10 container image files on the current directory, and I want to load them to my Kubernetes cluster that is using containerd as CRI. [root@test tmp]# ls -1 test1.tar test2.tar test3.tar ... I tried to load them at once using xargs…
Daigo
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How to get container configuration programmatically with containerd runtime?

I use containerd interface for logging plugins. Also I'm looking for a way to get the container config that kubelet passes to containerd to run containers. I am interested in the ability to find out the path to the container log file, as well as the…
T uS
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Containerd: Copying files from containerd container to host

I am looking for equivalent of docker cp command in containerd. For example what will be the equivalent of below in containerd docker cp : ex: docker cp ed128ed:/etc/file1 file1
Shane Warne
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Docker service doesn't start after hard host reboot

I had a well worked docker on my centos7 machine. After unexpectable hard reboot docker doesn't want to start. As I see in logs the problem is about it's dependency containerd.service. I've tried to reinstall the all docker stack, it didn't help. I…
Elegant.Obj
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How to configure microk8s kubernetes to use private container's in https://hub.docker.com/?

microk8s document "Working with a private registry" leaves me unsure what to do. The Secure registry portion says Kubernetes does it one way (no indicating whether or not Kubernetes' way applies to microk8), and microk8s uses containerd inside its…
grabbag
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docker: Error response from daemon: ttrpc: closed: unknown. after upgrading containerd to 1.4.0

After upgrading containerd to 1.4.0, running docker containers fail with the following error docker: Error response from daemon: ttrpc: closed: unknown. For reference, I am using Arch Linux.
chaitan94
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How do I identify if a runc container is running as privileged?

Regardless of docker/crio/containerd starting the container, is there a way to understand if the runc container is running as privileged one? docker inspect does show privilegedness but I want to find out at the runc layer.
Sam Thomas
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