Getting started
Configuration¶
cp xp.conf.template xp.conf
xp.conf
file
- To customize the cluster size (default : 3), add :
clusterSize 5 # 1 master, 4 nodes
- To select specific OAR resources, add :
nodeSelection "{cluster IN ('parasilo','paravance')}"
Deployment (~4mn)¶
source setup_env.sh
rake run
#...
# |-- run : 00h 03m 12s
# | |-- kube:setup -> 00h 00m 00s
# | |-- grid5000:jobs -> 00h 00m 03s
# | |-- vm:wait -> 00h 00m 00s
# | |-- vm:ssh -> 00h 00m 00s
# | |-- rke:deploy -> 00h 02m 57s
# | | |-- rke:generate -> 00h 00m 00s
# | | |-- rke:up -> 00h 02m 56s
# | | |-- rke:kubeconfig -> 00h 00m 00s
# | |-- helm:repos -> 00h 00m 07s
# | |-- kube:deployMetallb -> 00h 00m 03s
Open a shell on the master node¶
rake shell
Inspect deployment¶
Cluster informations¶
root@kubemaster:~# kubectl cluster-info
# Kubernetes master is running at https://10.158.0.1:6443
# KubeDNS is running at https://10.158.0.1:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
Components statuses¶
root@kubemaster:~# kubectl get cs
# NAME STATUS MESSAGE ERROR
# scheduler Healthy ok
# controller-manager Healthy ok
# etcd-0 Healthy {"health": "true"}
Tip
cs
shortname for componentstatuses
. Use command kubectl api-resources
to shows available resources and shortnames.
Cluster nodes¶
root@kubemaster:~# kubectl get nodes -o wide
# NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
# kubemaster Ready controlplane,etcd 48m v1.17.2 10.158.0.1 <none> Debian GNU/Linux 10 (buster) 4.19.0-8-amd64 docker://19.3.5
# kubenode0 Ready worker 48m v1.17.2 10.158.0.2 <none> Debian GNU/Linux 10 (buster) 4.19.0-8-amd64 docker://19.3.5
# kubenode1 Ready worker 48m v1.17.2 10.158.0.3 <none> Debian GNU/Linux 10 (buster) 4.19.0-8-amd64 docker://19.3.5
# kubenode2 Ready worker 48m v1.17.2 10.158.0.4 <none> Debian GNU/Linux 10 (buster) 4.19.0-8-amd64 docker://19.3.5
# kubenode3 Ready worker 48m v1.17.2 10.158.0.5 <none> Debian GNU/Linux 10 (buster) 4.19.0-8-amd64 docker://19.3.5
Pods¶
root@kubemaster:~# kubectl get pods --all-namespaces -o wide
# NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
# ingress-nginx default-http-backend-67cf578fc4-xj6ks 1/1 Running 0 6m52s 10.46.1.5 kubenode0 <none> <none>
# ingress-nginx nginx-ingress-controller-8tlrl 1/1 Running 0 6m52s 10.158.0.3 kubenode1 <none> <none>
# ingress-nginx nginx-ingress-controller-dlnkh 1/1 Running 0 6m52s 10.158.0.4 kubenode2 <none> <none>
# ingress-nginx nginx-ingress-controller-kmrls 1/1 Running 0 6m52s 10.158.0.2 kubenode0 <none> <none>
# ingress-nginx nginx-ingress-controller-qhldr 1/1 Running 0 6m52s 10.158.0.5 kubenode3 <none> <none>
# kube-system canal-94wxx 2/2 Running 0 7m10s 10.158.0.4 kubenode2 <none> <none>
# kube-system canal-gz2sp 2/2 Running 0 7m10s 10.158.0.1 kubemaster <none> <none>
# kube-system canal-jr7vk 2/2 Running 0 7m10s 10.158.0.2 kubenode0 <none> <none>
# kube-system canal-r85jv 2/2 Running 0 7m10s 10.158.0.3 kubenode1 <none> <none>
# kube-system canal-vh62d 2/2 Running 0 7m10s 10.158.0.5 kubenode3 <none> <none>
# kube-system coredns-7c5566588d-tbtn7 1/1 Running 0 7m3s 10.46.1.3 kubenode0 <none> <none>
# kube-system coredns-7c5566588d-z87h6 1/1 Running 0 6m56s 10.46.4.2 kubenode2 <none> <none>
# kube-system coredns-autoscaler-65bfc8d47d-gxbcq 1/1 Running 0 7m2s 10.46.1.2 kubenode0 <none> <none>
# kube-system metrics-server-6b55c64f86-zpnxf 1/1 Running 0 6m56s 10.46.1.4 kubenode0 <none> <none>
# kube-system rke-coredns-addon-deploy-job-4xdnh 0/1 Completed 0 7m5s 10.158.0.1 kubemaster <none> <none>
# kube-system rke-ingress-controller-deploy-job-nkdrc 0/1 Completed 0 6m53s 10.158.0.1 kubemaster <none> <none>
# kube-system rke-metrics-addon-deploy-job-wcbgk 0/1 Completed 0 6m58s 10.158.0.1 kubemaster <none> <none>
# kube-system rke-network-plugin-deploy-job-b99qq 0/1 Completed 0 7m12s 10.158.0.1 kubemaster <none> <none>
# metallb metallb-controller-7fbbd7dcbb-5v5ft 1/1 Running 0 5m34s 10.46.1.6 kubenode0 <none> <none>
# metallb metallb-speaker-bwrl4 1/1 Running 0 5m34s 10.158.0.3 kubenode1 <none> <none>
# metallb metallb-speaker-dms9c 1/1 Running 0 5m34s 10.158.0.4 kubenode2 <none> <none>
# metallb metallb-speaker-kxx96 1/1 Running 0 5m34s 10.158.0.2 kubenode0 <none> <none>
# metallb metallb-speaker-zhmfp 1/1 Running 0 5m34s 10.158.0.5 kubenode3 <none> <none>