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Tomas Dvorak 485e41a817 feat(mcp): stdio MCP server exposing the full API as tools

Add containr-mcp so MCP-compatible agents (Claude, Cursor, Devin)
operate the platform directly — ROADMAP2 phase A3. Reuses the CLI's
thin client and PAT auth; zero duplicated resource logic.

- ~60 containr_* tools across projects, services, deployments, logs,
  exec, variables, databases, cron, templates, nodes, scaling, ha,
  security, gateway, admin, notifications, tokens
- declarative tool specs → {param} path substitution, GET extras become
  query params, remaining args form the request body
- destructive tools require confirm:true and return isError without it
- results are pretty JSON; API error envelopes surface as isError
- configured via CONTAINR_API_URL + CONTAINR_TOKEN env; official
  modelcontextprotocol/go-sdk over StdioTransport

Verified over stdio: initialize + tools/list, auth_status returns the
token owner's identity, projects list, destructive refusal, token
creation through MCP.

Authored By: TDvorak <[email protected]>

2026-10-08 15:25:34 +02:00

3.4 KiB

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Containr CLI

The CLI controls every part of a Containr instance — the same API surface the web UI uses. Build it with scripts/build-cli.sh or go build ./cmd/cli from app/backend.

Authentication

Create a personal access token in the web UI under Settings → Personal Access Tokens (or containr tokens create), then:

containr auth login cnp_...                      # verify + store
containr auth login cnp_... --url https://containr.example.com
containr auth login cnp_... --name production    # named profile
containr auth status                             # show active profile + identity
containr auth logout

Resolution order for every command: --token/--api-url flags > CONTAINR_TOKEN/CONTAINR_API_URL env > active profile > http://localhost:8080/api/v1. The active profile is --profile > CONTAINR_PROFILE > current_profile in ~/.containr.yaml.

Output and scripting

--json prints the raw API response — safe to pipe and parse.
--yes / -y skips confirmation on destructive commands (delete, revoke, restore, failover). Non-interactive shells refuse destructive commands without it.
Exit codes are stable: 0 ok, 1 error, 2 auth/permission, 3 not found, 4 validation, 5 unreachable.

Commands

auth login|logout|status         token auth and profiles
tokens list|create|revoke        personal access tokens
projects list|get|create|delete
services list|get|create|delete|start|stop|restart|redeploy
deploy <service-id>              trigger a deployment
deployments list|get|logs|rollback
logs <service-id> [--follow]     runtime logs (SSE follow)
exec <service-id> -- <cmd>       one-off container command
variables list|set|unset         env vars (secrets masked)
databases list|get|create|delete|action|backup|restore|download-backup
cron list|get|create|delete|trigger|executions
templates list|get|create|delete|deploy
nodes list|get|delete|tokens     node agents + onboarding tokens (admin)
scaling status|policies|services|scale
ha status|alerts|health|policies|enable|disable|failover
security scan|vulnerabilities|metrics
gateway services|keys|analytics  (admin)
admin overview|users|settings|audit-logs
notifications list|read
up                               deploy the current directory

containr up

Run inside a git checkout: uses remote.origin.url + the current branch as the build source, creates a service named after the directory when none exists, then triggers a deployment.

containr up --project <id>
containr up --project <id> --image ghcr.io/example/app:latest   # image, no build

Set project_id on the active profile to omit --project (stored in ~/.containr.yaml under profiles.<name>.project_id).

MCP server

containr-mcp (go build ./cmd/mcp) exposes the same API as MCP tools over stdio — every command group above maps to a containr_* tool (~60 tools). Destructive tools require the caller to pass confirm: true; results are pretty JSON with isError on failures.

Client configuration (Claude Code, Cursor, Devin, any stdio MCP host):

{
  "mcpServers": {
    "containr": {
      "command": "containr-mcp",
      "env": {
        "CONTAINR_API_URL": "https://containr.example.com",
        "CONTAINR_TOKEN": "cnp_..."
      }
    }
  }
}

Scope the token deliberately: read is enough for inspection agents, write for deploy automation, admin only for platform operations.

3.4 KiB Raw Blame History