Schema | rancher-mcp-server

rancher-mcp-server

Describes the environment variables required to run the server.

Name	Required	Description
`RANCHER_URL`	Yes	URL of the Rancher server (e.g., https://rancher.example.com)
`RANCHER_TOKEN`	Yes	API token for Rancher (format: token-xxxxx:yyyyyyyyyyyy)
`RANCHER_VERIFY_TLS`	No	Set to 'false' to disable TLS verification (e.g., for self-signed certificates)
`RANCHER_MCP_ALLOW_WRITE`	No	Set to 'true' to enable write operations like scale_workload and redeploy_workload
`RANCHER_MCP_MAX_REPLICAS`	No	Maximum replicas for scaling (default 20)

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": false }
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }
`experimental`	{}

Functions exposed to the LLM to take actions

Name	Description
list_clustersA	List all Rancher-managed clusters with state and capacity summary.
list_nodesA	List the nodes of a cluster with roles, state and requested resources.
list_projectsA	List Rancher projects of a cluster (project ids are needed to inspect workloads).
list_workloadsA	List workloads (deployments, daemonsets...) of a project, optionally filtered by namespace.
list_podsA	List pods of a project. Set only_unhealthy=True to see only pods in CrashLoopBackOff/Error/Pending states or with more than 3 restarts.
get_pod_logsB	Fetch the last N log lines of a pod. Use previous=True to read logs from the previous (crashed) container instance.
get_eventsB	List recent Kubernetes events of a cluster (Warning events by default).
diagnose_workloadA	One-shot diagnosis of a workload: state, unhealthy pods, restart counts and related Warning events. Ideal first call when something is failing.
scale_workloadA	Scale a workload to N replicas. Requires RANCHER_MCP_ALLOW_WRITE=true. Capped by RANCHER_MCP_MAX_REPLICAS (default 20).
redeploy_workloadB	Trigger a rolling redeploy of a workload (equivalent to the Rancher UI 'Redeploy' button). Requires RANCHER_MCP_ALLOW_WRITE=true.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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