Domain 1: Orchestration (25% of exam)
- Complete the setup of a swarm mode cluster, with managers and worker nodes
- Describe and demonstrate how to extend the instructions to run individual containers into running services under swarm
- Describe the importance of quorum in a swarm cluster.
- Describe the difference between running a container and running a service.
- Interpret the output of “docker inspect” commands
- Convert an application deployment into a stack file using a YAML compose file with “docker stack deploy”
- Manipulate a running stack of services
- Describe and demonstrate orchestration activities
- Increase number of replicas
- Add networks, publish ports
- Mount volumes
- Describe and demonstrate how to run replicated and global services
- Apply node labels to demonstrate placement of tasks (Label a Swarm Node, Use Placement Constraints)
- Describe and demonstrate how to use templates with “docker service create”
- Identify the steps needed to troubleshoot a service not deploying
- Describe how a Dockerized application communicates with legacy systems
- Describe how to deploy containerized workloads as Kubernetes pods and deployments
- Describe how to provide configuration to Kubernetes pods using configMaps and secrets