Kubernetes container start flow

About this example

Kubernetes’ orchestration simplifies container management at scale. This flow diagram illustrates:

• API Interaction: Begins with the kubectl create command to the API server, initiating the container lifecycle.
• etcd Storage: The API server stores the new pod state in the etcd datastore, ensuring consistent state management.
• Scheduling and Assignment: The control plane scheduler watches for unassigned pods, assigns them to nodes, and updates their status.
• Container Runtime: Concludes with the node’s kubelet starting the container as per the scheduler’s decision.

When to use

• Container Orchestration Design: For software engineers designing or understanding container orchestration workflows within a Kubernetes environment.
• DevOps Training: As a training tool to help DevOps teams grasp the steps involved in deploying containers using Kubernetes.
• Automation and Scaling: When automating the deployment process and scaling applications in cloud or on-premises environments.

How to use

1. Start editing: Duplicate the example file and double-click on the diagram.
2. Customize diagram: Add/modify nodes, groups, and relationships using a diagram-as-code syntax to align with your Kubernetes setup.
3. Customize layout: Rearrange elements on the diagram directly on the canvas to fit your architectural needs.
4. Collect feedback: Encourage collaboration by sharing the diagram with your team and using their comments for iterative refinement.