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Comments (5)

brandond avatar brandond commented on May 28, 2024

I believe this is a duplicate of #9341

Remove the second endpoint, you don't need to specify the default endpoint; it is always tried last - and on this specific release it triggers a bug in the registries configuration.

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kingsd041 avatar kingsd041 commented on May 28, 2024

@brandond I removed the second default endpoint, but the situation is still the same.

root@ip-172-31-15-10:/etc/rancher/k3s# cat registries.yaml
mirrors:
  "docker.io":
    endpoint:
      - "https://docker.nju.edu.cn/"
root@ip-172-31-15-10:/etc/rancher/k3s#
root@ip-172-31-15-10:/etc/rancher/k3s# systemctl restart k3s
root@ip-172-31-15-10:/etc/rancher/k3s# crictl info | grep -A 5 "registry"
    "registry": {
      "configPath": "/var/lib/rancher/k3s/agent/etc/containerd/certs.d",
      "mirrors": null,
      "configs": null,
      "auths": null,
      "headers": null

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brandond avatar brandond commented on May 28, 2024

I'm not sure that crictl info will show mirrors when configPath is in use; you have to actually look at the filesystem. Have you checked to confirm that /var/lib/rancher/k3s/agent/etc/containerd/certs.d/docker.io/hosts.toml exists and has the correct content?

ref: https://github.com/containerd/containerd/blob/main/docs/hosts.md

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kingsd041 avatar kingsd041 commented on May 28, 2024

/var/lib/rancher/k3s/agent/etc/containerd/certs.d/docker.io/hosts.toml of v1.28.7+k3s1 shows the mirror I configured：

root@ip-172-31-4-143:~# cat /etc/rancher/k3s/registries.yaml
mirrors:
  "docker.io":
    endpoint:
      - "https://docker.nju.edu.cn/"

root@ip-172-31-4-143:~# cat /var/lib/rancher/k3s/agent/etc/containerd/certs.d/docker.io/hosts.toml
# File generated by k3s. DO NOT EDIT.
server = "https://registry-1.docker.io/v2"

[host."https://docker.nju.edu.cn/v2"]
  capabilities = ["pull", "resolve"]

However, I also tried the same operation using v1.28.5+k3s1. Using v1.28.5+k3s1, I can display the mirror information through crictl info:

root@ip-172-31-10-120:~# k3s -v
k3s version v1.28.5+k3s1 (5b2d1271)
go version go1.20.12

root@ip-172-31-10-120:~# crictl info | grep -A 5 "registry"
    "registry": {
      "configPath": "",
      "mirrors": {
        "docker.io": {
          "endpoint": [
            "https://docker.nju.edu.cn/"

root@ip-172-31-10-120:~# cat /etc/rancher/k3s/registries.yaml
mirrors:
  "docker.io":
    endpoint:
      - "https://docker.nju.edu.cn/"

Moreover, I also observed that the Containerd versions of v1.28.7+k3s1 and v1.28.5+k3s1 are both v1.7.11-k3s2, @brandond Do you know the reason why v1.28.7+k3s1 cannot display mirror through crictl info?

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brandond avatar brandond commented on May 28, 2024

Because we switched to using hosts.d (configPath) instead of the deprecated inline mirrors config.

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