Day-2 operations

TechPreview since MCC 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 MOSK
• HostOSConfiguration and HostOSConfigurationModules concepts
• Internal API for day-2 operations
• Add a custom module to a MOSK deployment
• Test a custom or MOSK module after creation
• Retrigger a module configuration
• Troubleshooting

See also

Container Cloud API Reference:

• HostOSConfiguration custom resource

• HostOSConfigurationModules custom resource