Configure Flannel networking

[xgy560501]

(item=kubectl apply -f /tmp/kac.yml) => {"ansible_loop_var": "item", "changed": false, "cmd": ["kubectl", "apply", "-f", "/tmp/kac.yml"], "delta": "0:00:00.330669", "end": "2019-06-13 16:09:26.484968", "item": "kubectl apply -f /tmp/kac.yml", "msg": "non-zero return code", "rc": 1, "start": "2019-06-13 16:09:26.154299", "stderr": "error: the path "/tmp/kac.yml" does not exist", "stderr_lines": ["error: the path "/tmp/kac.yml" does not exist"], "stdout": "", "stdout_lines": []}

[mikev1963]

I get the following error:
failed: [kube1] (item=kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml) => {"ansible_loop_var": "item", "changed": false, "cmd": ["kubectl", "apply", "-f", "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml"], "delta": "0:00:00.375162", "end": "2019-08-03 19:33:08.173254", "item": "kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml", "msg": "non-zero return code", "rc": 1, "start": "2019-08-03 19:33:07.798092", "stderr": "unable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml\": Get https://192.168.1.61:6443/api?timeout=32s: dial tcp 192.168.1.61:6443: connect: connection refused\nunable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml\": Get https://192.168.1.61:6443/api?timeout=32s: dial tcp 192.168.1.61:6443: connect: connection refused", "stderr_lines": ["unable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml": Get https://192.168.1.61:6443/api?timeout=32s: dial tcp 192.168.1.61:6443: connect: connection refused", "unable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml": Get https://192.168.1.61:6443/api?timeout=32s: dial tcp 192.168.1.61:6443: connect: connection refused"], "stdout": "", "stdout_lines": []}

[sergeyjsg]

Sorry, any update for this issue? Got same error as in above message:
unable to recognize "https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml": Get https://192.168.0.22:6443/api?timeout=32s: dial tcp 192.168.0.22:6443: connect: connection refused

[georgms]

Me too, version 3.0.1

[georgms]

I could fix this using:

  vars:
    kubernetes_kubelet_extra_args: "--fail-swap-on=false"

This is actually mentioned in the documentation of the role. More info about swap space is provided in this kubeadm issue.

[stale]

This issue has been marked 'stale' due to lack of recent activity. If there is no further activity, the issue will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark issues as stale.

[geerlingguy]

It looks like there are a few different issues here:

/tmp/kac.yml" does not exist

Not sure what that's for, but it's not related to this role (this role doesn't have that string in it anywhere).

Get https://192.168.1.61:6443/api?timeout=32s

That's not necessarily related to flannel installation—I would suggest looking at kubelet's logs to see what's happening (e.g. journalctl -u kubelet).

--fail-swap-on=false

That may very well be the case for those not being able to connect to the K8s API—which is why it's important to check kubelet's logs :)