Kubernetes lifecycle management¶
The Kubernetes lifecycle management (LCM) engine in Mirantis Container Cloud consists of the following components:
- LCM Controller
Responsible for all LCM operations. Consumes the LCMCluster object and orchestrates actions through LCM Agent.
- LCM Agent
Runs on the target host. Executes Ansible playbooks in headless mode.
- Helm Controller
Responsible for the Helm charts life cycle, is installed by a cloud provider as a Helm v3 chart.
The Kubernetes LCM components handle the following custom resources:
The following diagram illustrates handling of the LCM custom resources by
the Kubernetes LCM components. On a managed cluster,
apiserver handles multiple Kubernetes objects,
for example, deployments, nodes, RBAC, and so on.