I'm trying to install a Kubernetes test in my lab environment.I'm behind a proxy which is configured for curl, apt and wgetBut there is a special certificate used from forcepoint.All ssl connections will pass through via forcepoint certificate.I have already installed this forcepoint certificate to the root ca.
I tried to install kubernetes as described inhttps://phoenixnap.com/kb/install-kubernetes-on-ubuntu
I got stuck at step 10.
- Finally, initialize the cluster by typing
sudo kubeadm init --control-plane-endpoint=master-node --upload-certs
Here I got a connection problem with ImagePull.
To specify this a little bit more, I tried just pull the images before the rest with sudo kubeadm pull image I got this error message:
W0125 14:11:00.320619 32932 version.go:104] could not fetch a Kubernetes version from the internet: unable to get URL "https://dl.k8s.io/release/stable-1.txt": Get "https://dl.k8s.io/release/stable-1.txt": dial tcp 34.107.204.206:443: connect: connection refusedW0125 14:11:00.320751 32932 version.go:105] falling back to the local client version: v1.28.2failed to pull image "registry.k8s.io/kube-apiserver:v1.28.2": output: E0125 14:11:00.598053 32975 remote_image.go:171] "PullImage from image service failed" err="rpc error: code = Unknown desc = failed to pull and unpack image \"registry.k8s.io/kube-apiserver:v1.28.2\": failed to resolve reference \"registry.k8s.io/kube-apiserver:v1.28.2\": failed to do request: Head \"https://registry.k8s.io/v2/kube-apiserver/manifests/v1.28.2\": dial tcp 34.96.108.209:443: connect: connection refused" image="registry.k8s.io/kube-apiserver:v1.28.2"time="2024-01-25T14:11:00Z" level=fatal msg="pulling image: rpc error: code = Unknown desc = failed to pull and unpack image \"registry.k8s.io/kube-apiserver:v1.28.2\": failed to resolve reference \"registry.k8s.io/kube-apiserver:v1.28.2\": failed to do request: Head \"https://registry.k8s.io/v2/kube-apiserver/manifests/v1.28.2\": dial tcp 34.96.108.209:443: connect: connection refused"error: exit status 1To see the stack trace of this error execute with --v=5 or higherIf I try e.g. to access https://dl.k8s.io/release/stable-1.txt via wget everything works fine.
wget https://dl.k8s.io/release/stable-1.txt--2024-01-25 14:11:59-- https://dl.k8s.io/release/stable-1.txtConnecting to 172.25.82.137:81... connected.Proxy request sent, awaiting response... 302 FoundLocation: https://cdn.dl.k8s.io/release/stable-1.txt [following]--2024-01-25 14:12:00-- https://cdn.dl.k8s.io/release/stable-1.txtConnecting to 172.25.82.137:81... connected.Proxy request sent, awaiting response... 200 OKLength: 7 [text/plain]Saving to: ‘stable-1.txt’stable-1.txt 100% [====================================================================>] 7 --.-KB/s in 0s2024-01-25 14:12:01 (205 KB/s) - ‘stable-1.txt’ saved [7/7]Do you have any idea where the problem could be?