Ctr image import not working. io, when import images, we should specify the namespaces like this: Oct 11, 2017 · You need to specify the part that follows the colon : symbol. io images import myimage. The setup is a single node microk8s where I have moved and imported all the necessary im. It covers pulling, pushing, importing, exporting, listing, tagging, and content management of container images. However, it does not (always). tar The OS is Ubuntu 20. 04 lts The command is perform from the tar directory or with a full path Dec 14, 2022 · 1 k3s ctr image ls | grep awx simply tells you that the image is loaded locally (not to the registry). json", "RepoTags": null, "Layers": [] Jan 25, 2020 · It appears, by the way, that using wildcards in the ctr image import command won’t work; I had to manually specify each individual file for import. Oct 5, 2023 · The problem is that when the import is finished I'll have @30 images only so not all images are imported What I observed is that when importing some images, those images will remove others. Pull the image from the work nodes that are without internet enabled. json file, you will see something like below (RepoTags is null): "Config": "5b40ecbbea27ebdfbedabb732e228cb5649b0383ef6508257263978586cc8f9c. tar. Which registry are you trying to pull this from? Jun 20, 2023 · How to work with container images using ctr Basic image management with ctr Pulling images with ctr always requires a fully-qualified reference - in other words, you cannot omit the domain or the tag parts (the digest doesn’t have to be provided, though). Verify that the image (s) are present and recognized by containerd using ctr image ls. Note that GC may not work well with imported images, but it is being tracked in #1602 Jan 13, 2022 · Description ctr image import command can not import an image which is created with --platform option. In the next command when you do a k3s ctr image pull. If you open the created tar file and look at the manifest. tar while in the same directory as thearchived image to add it to containerd in the namespace that kubernetes uses to track it's images. Nov 15, 2021 · 1- Once you get the image on the node (in my case, a VM), make sure it is in an archive (. i. 2- Use sudo ctr -n=k8s. To some extent, it can mitigate the absence of the build command. . There is no special magic to make the most recently imported tag available as latest. io, when import images, we should specify the namespaces like this: ctr -n=k8s. What do you get from ctr version vs k3s ctr version? Dec 27, 2025 · Luckily, you can load existing images into containerd using ctr image import. You're right perhaps this can be better documented if not yet. May 19, 2021 · Let having a docker image like: So if you save the image with the below command, ctr cannot create an image. ctr command again. Oct 23, 2024 · It really sounds like you're running two different container runtimes, and k3s ctr and ctr are not the same thing. tar Oct 19, 2023 · I have an interesting situation where it seems I cannot use locally imported images (directly to ctr cache). You can do that with the docker save or ctr image export commands. io image import /root/pause. Here is how you can build an image using a traditional docker build command and then import it: Mar 16, 2026 · This document describes how to use the ctr command-line tool for image management operations in containerd. tar). So what I usually do is: Pull the image from the docker hub on a work node with internet enabled. e. These will work most of the time. Feb 29, 2024 · Containerd Cheat Sheet Build # Build OCI images (default for podman) $ podman build — format=oci # Build Docker images instead $ podman build — format=docker # Similarly in ‘docker buildx Oct 5, 2023 · The problem is that when the import is finished I'll have @30 images only so not all images are imported What I observed is that when importing some images, those images will remove others. Nov 12, 2023 · Am I missing something? what should I do to fixed this issue? this is the /etc/crictl. You can transfer the tar image to the VM using multipass transfer then run the microk8s. or k3s ctr image run, you're actually expecting the image to be pulled down from the remote registry. ctr images import foo/bar/nginx:baz 2. It will report an error: ctr: content digest sha256:xxx: not found Steps to reproduce the issue $ ctr image pull --platform linux/amd64 Mar 2, 2023 · You are importing video_list_caddy:v1 but running video_list_caddy:latest. Apr 3, 2024 · Description Intuitively, one would think that ctr images export followed by a ctr images import should "just work". Sep 4, 2024 · Hi community, I am asking this because most of my work nodes cannot pull images from the internet. Finally I found the crictl default namespaces in k8s. ctr images export --help implies that, by default, Dec 10, 2020 · @rahamohebbi you are running the microk8s command from windows? If thats the case, yes that will fail because the tar file is not inside the VM for ctr to pickup. when rerun the same command the image is imported correctly microk8s ctr image import file. Nov 21, 2021 · Hi, Rarely when importing a docker tar file to the microk8s using the command below It looks like the command finished successfully but the image was not imported, it happened twice on two different servers. yaml config: I have already tried to import the images like this: still could not show by crictl command. Nov 12, 2023 · Finally I found the crictl default namespaces in k8s. This is not specific to k3s, containerd, or ctr; it's just how image tags work. If you want to use your v1 tag as latest, you need to manually retag it as such. m4d lcv xea lbm fb21 zsfs vjy fv3 s0sr grn ycy x2b x89 bnk 5pxw cnc ikz n5zg wxw 9qj ldf fn8 uxcn ci6 f61 gdgx ybj odtz sty0 rsm