K3s pull images from Docker Pro private repository

I'm attempting to use containers published to a private Docker Pro registry with K3s.

I've configured /etc/rancher/k3s/registries.yaml

mirrors:    docker.io:        endpoint:            - "https://docker.io"configs:    docker.io:        auth:            username: mydockerprouser            password: dckr_pat_randomstuffgoeshere

Once deployed I restart k3s and check to see if crictl is configured to use a registry by running sudo k3s crictl info

"registry": {"configPath": "","mirrors": {"docker.io": {"endpoint": ["https://docker.io"          ],"rewrite": null        }      },"configs": {"docker.io": {"auth": {"username": "mydockerprouser","password": "dckr_pat_randomstuffgoeshere","auth": "","identitytoken": ""          },"tls": null        }      },"auths": null,"headers": null    },

As a test I first applied the following manifest to k3s

apiVersion: v1kind: Podmetadata:    name: troubleshootingspec:    containers:        - name: troubleshooter          imagePullPolicy: Always          image: docker.io/mydockerprouser/troubleshooting:v1          command: [ "/bin/bash", "-c", "--" ]          args: [ "while :; do echo -n '.'; sleep 5 ; done" ]

From kubectl describe pod troubleshooting I see this error

Warning  Failed   60m (x4 over 61m)     kubelet  Failed to pull image "docker.io/mydockerprouser/troubleshooting:v1": rpc error: code = NotFound desc = failed to pull and unpack image "docker.io/mydockerprouser/troubleshooting:v1": failed to unpack image on snapshotter overlayfs: unexpected media type text/html for sha256:7204e99bfb31a747dccaaac6d3e1599b008efa7cc31c2834b2623d2fba3a9c6a: not found

For a second test I ran sudo k3s crictl pull --creds docker.io/mydockerprouser/troubleshooting:v1

And I get

E0223 17:02:19.602354    7373 remote_image.go:171] "PullImage from image service failed" err="rpc error: code = NotFound desc = failed to pull and unpack image \"docker.io/mydockerprouser/troubleshooting:v1\": failed to unpack image on snapshotter overlayfs: unexpected media typetext/html for sha256:7060d74a8a8262817c2e5378288e2c2ba200e060c53e090bc7831c67de4cfafb: not found" image="docker.io/mydockerprouser/troubleshooting:v1"FATA[0000] pulling image: rpc error: code = NotFound desc = failed to pull and unpack image "docker.io/mydockerprouser/troubleshooting:v1": failed to unpack image on snapshotter overlayfs: unexpected media type text/html for sha256:7060d74a8a8262817c2e5378288e2c2ba200e060c53e090bc7831c67de4cfafb: not found

If I remove the registries.yaml and run

sudo k3s crictl pull --creds "mydockerprouser:dckr_pat_randomstuffgoeshere" docker.io/mydockerprouser/troubleshooting:v1

It works!

Additional information

• Running K3s on fedora-coreos
• K3s version v1.26.1+k3s1