/kubernetes-challenges

kubernetes-challenges

challenge 1

Following issues can't be fixed.

  • There are some errors during gem installation in initcontainer. It is hard to fix.
  • Tried the following 3 ways for command in initcontainer, all don't work 
    • command: 
- sh 
- -c 
- jekyll new /site
    • command: ["jekyll", "new", "/site"]
    • command:
    - jekyll
    - new
    - /site

challenge 2

# hidden requirements: nodePort 31200
sed -i 's/ca-authority/ca/g' /etc/kubernetes/manifests/kube-apiserver.yaml
sed -i 's/6433/6443/g' /root/.kube/config

k -n kube-system get deployment  coredns -o yaml |\
 sed  's/kubedns:1.3.1/coredns\/coredns:v1.8.6/g' |\
 kubectl apply -f -

ssh node01 "systemctl status kubelet"
kubectl uncordon node01
cd /media
scp * node01:/web

challenge 3

Hidden requirements:

  • containerPort in db pod
  • POSTGRES_USER and POSTGRES_PASSWORD

Create db first, then worker later. Worker deployment need to take a while.

References: