Microk8s not starting behind corporate proxy

I installed microk8s on a Ubuntu 20.04 server via snap as of the official documentation. After the installation, the kubernetes cluster does not boot up properly, as the calico pods cannot be retrieved.

Nov 06 14:31:07 SRV100116 microk8s.daemon-containerd[1073]: time="2020-11-06T14:31:07.363358638+01:00" level=error msg="Failed to load cni configuration" error="cni config load failed: no network config found in /var/snap/microk8s/1769/args/cni-network: cni plugin not initialized: failed to load cni config"
Nov 06 14:31:12 SRV100116 microk8s.daemon-containerd[1073]: time="2020-11-06T14:31:12.364102216+01:00" level=error msg="Failed to load cni configuration" error="cni config load failed: no network config found in /var/snap/microk8s/1769/args/cni-network: cni plugin not initialized: failed to load cni config"
Nov 06 14:31:14 SRV100116 microk8s.daemon-containerd[1073]: time="2020-11-06T14:31:14.248621204+01:00" level=info msg="RunPodsandbox for &PodSandboxMetadata{Name:calico-node-q4ghx,Uid:1ba56ccd-5d72-4db5-ad12-5dcf0463a2af,Namespace:kube-system,Attempt:0,}"
Nov 06 14:31:15 SRV100116 microk8s.daemon-containerd[1073]: time="2020-11-06T14:31:15.120050803+01:00" level=error msg="RunPodSandbox for &PodSandboxMetadata{Name:calico-node-q4ghx,Uid:1ba56ccd-5d72-4db5-ad12-5dcf0463a2af,Namespace:kube-system,Attempt:0,} failed, error" error="failed to get sandbox image \"k8s.gcr.io/pause:3.1\": failed to pull image \"k8s.gcr.io/pause:3.1\": failed to pull and unpack image \"k8s.gcr.io/pause:3.1\": failed to copy: httpReaderSeeker: failed open: unexpected status code https://k8s.gcr.io/v2/pause/blobs/sha256:da86e6ba6ca197bf6bc5e9d900febd906b133eaa4750e6bed647b0fbe50ed43e: 503 Service Unavailable"

I have the suspicion that the corporate proxy server in the network is somehow blocking the download of the images. The proxy is doing deep package inspection and re-encrypting any SSL traffic. The root certificate of the proxy is correctly installed in /etc/ssl/certs/ca-certificates.crt

I am not sure, if I need to do some extra configuration, or if there is a bug that prevents microk8s from spawning. Any help is highly appreciated.

inspection-report.tar.gz

[yalosev]

@mavencode01 I’m sorry, not kubelet-env but kubectl-env. It’s also placed in SNAP_DATA - ${SNAP_DATA}/args/kubectl-env

[stale[bot]]

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