Day-2 operations

TechPreview since 2.26.0 (17.1.0 and 16.1.0)

Important

The cloud operator takes all risks and responsibility for module execution on cluster machines. For any questions, contact Mirantis support.

The day-2 operations API extends configuration management of baremetal-based clusters and machines after initial deployment. The feature allows managing the operating system of a bare metal host granularly using modules without rebuilding the node from scratch. Such approach prevents workload evacuation and significantly reduces configuration time.

The day-2 operations API does not limit the cloud operator’s ability to configure machines in any way, making the operator responsible for day-2 adjustments.

This section provides guidelines for Container Cloud or custom modules that are used by the HostOSConfiguration and HostOSConfigurationModules custom resources designed for baremetal-based management and managed clusters.

• Day-2 operations workflow
• Global recommendations for implementation of custom modules
• Format and structure of a module package
• Modules provided by Container Cloud
• HostOSConfiguration and HostOSConfigurationModules concepts
• Internal API for day-2 operations
• Add a custom module to a Container Cloud deployment
• Test a custom or Container Cloud module after creation
• Retrigger a module configuration
• Troubleshooting

See also

API Reference:

• HostOSConfiguration custom resource

• HostOSConfigurationModules custom resource