Operations

Choose the system you are working on and the outcome you need. Maintaining CVK's Kubernetes installation, deploying applications, and changing a device's operating system are separate tasks.

Choose a task

• Inspect a device

  Run supported read-only diagnostics and understand the result before planning a change.

  Device diagnostics · CLI and plugin

• Observe or troubleshoot

  Find device metrics, telemetry and lifecycle events, or start with a symptom.

  Observability · Telemetry · Troubleshooting

• Maintain the CVK installation

  Upgrade the chart, image and CRDs together, with verification and rollback steps for the Kubernetes deployment.

  Installation maintenance

• Perform a device action

  Review the permissions and explicit opt-in gates for supported IOS-XE write-class actions.

  Device actions · NX-OS configuration recovery

Plan IOS-XE operating-system maintenance

Use the single-device upgrade and downgrade runbook for one device. For a managed fleet, start with the topology overview, complete enablement and enrollment, then follow the campaign guide.

During a campaign	Open
Decide whether the optional drain preview fits your workload	Workload drain
Follow progress and investigate a blocked target	Campaign observability and troubleshooting
Recover interrupted work or retire retained ownership	Recovery and retirement

Each runbook includes its own prerequisites, approval boundary and verification. Write-class gNOI and IOS-XE software maintenance require explicit opt-in. Managed topology requires Kubernetes 1.35+; the disabled-by-default drain preview has limited workload eligibility and does not guarantee service continuity. Check feature availability for your release before following an example.

Find a reference

Use Security for credentials, trust and permissions, Reference for API fields, and the software lifecycle design for implementation behavior. Historical qualification records remain under Development and the release archive.