ungleich-k8s

History

Nico Schottelius 27339b7d54 bgp: switch asn for place7		2021-05-20 18:18:38 +02:00
..
bgp-place7.yaml	bgp: switch asn for place7	2021-05-20 18:18:38 +02:00
bgpconfig.yaml	change asn to go with ebgp	2021-04-08 13:56:18 +02:00
calico.yaml	switch to policy/v1	2021-05-16 22:48:51 +02:00
README.md	++notes	2021-05-16 23:07:15 +02:00

README.md

Steps

Boot Alpine
Configure with cdist

Control plane

kubeadm init --skip-phases=addon/kube-proxy --service-cidr 2a0a:e5c0:13:aaa::/108 --pod-network-cidr 2a0a:e5c0:13:bbb::/64

Worker nodes

kubeadm join [2a0a:e5c0:13:0:225:b3ff:fe20:38cc]:6443 --token bw3x98.chp31kcgcd4b5fpf --discovery-token-ca-cert-hash sha256:...

CNI/networking

kubectl apply -f calico.yaml

Warning: needs to be updated:

serviceaccount/calico-kube-controllers created
Warning: policy/v1beta1 PodDisruptionBudget is deprecated in v1.21+, unavailable in v1.25+; use policy/v1 PodDisruptionBudget
poddisruptionbudget.policy/calico-kube-controllers created

Checking pods:

[21:53] server47.place7:~/v3-calico# kubectl -n kube-system get pods
NAME                                       READY   STATUS              RESTARTS   AGE
calico-kube-controllers-6d8ccdbf46-4xzz9   0/1     Pending             0          60s
calico-node-5gkp9                          0/1     Init:0/3            0          60s
calico-node-8lct9                          0/1     Init:0/3            0          60s
calico-node-jmjhn                          0/1     Init:0/3            0          60s
calico-node-krnzr                          0/1     Init:ErrImagePull   0          60s
coredns-558bd4d5db-4rvrf                   0/1     Pending             0          3m40s
coredns-558bd4d5db-g9lbx                   0/1     Pending             0          3m40s
etcd-server47                              1/1     Running             0          3m56s
kube-apiserver-server47                    1/1     Running             0          3m55s
kube-controller-manager-server47           1/1     Running             0          3m56s
kube-scheduler-server47                    1/1     Running             0          3m55s
[21:54] server47.place7:~/v3-calico#

Getting calicoctl

kubectl apply -f https://docs.projectcalico.org/manifests/calicoctl.yaml

And alias it:

alias calicoctl="kubectl exec -i -n kube-system calicoctl -- /calicoctl"

Configuring BGP routing

calicoctl create -f - < bgp....yaml