Want to keep Ubuntu updated? Run these commands on your PC via terminal, or create a .sh file and add the following commands: Bash If you don't know how to create the .sh file, no problem! Just navigate to the folder in your terminal and run the following: touch file.sh ----> creates the file nano file.sh -----> opens the file in the terminal Finally, add the previous commands to the file, press C
CKS Study Memo on Network Policies official document: https://kubernetes.io/docs/concepts/services-networking/network-policies/ You can control traffic between pods using the NetworkPolicy resource. In the sample manifest, the selectors are written like this. ingress: - from: - namespaceSelector: matchLabels: user: alice - podSelector: matchLabels: