Daemonsets

• Daemonsets are used to run a pod on each node or selected nodes
• They are useful for running agent like softwares in container
• Daemonset support rolling updates like deployments
• Lets write a simple spec to run a dameonset
• Refer Here for offical docs
• Refer Here for the changes done

Jobs and CronJobs

• Refer Here for cronjob demo
• Lets write a cronjob which runs every day at 11:30 PM
  Refer Here

Namespace

• Refer Here for official docs
• In kubernetes we have api-resources
• Resources are classified into two scopes
  • Namespace scoped resources:
    • Namespace true indicates namespace scoped resources
  • Cluster scoped resources
    • Namespaced false indicates cluster scoped resources
      
• Exercise:
  • create a qa namespace (use manifest)
  • create a nginx deployment with 3 replicas in qa namespace
  • create a service with matches the labels in qa namespace
  • create an alpine pod in default namespace, try pinging to the nginx service in qa namespace with name not ip