Files
computer-playbook/roles/web-app-gitea/tasks/utils/mcp.yml
kevinveenbirkenbachandClaude Opus 5 791eee7c9f refactor(mcp)!: prove the endpoint contract with a CLI test, not a deploy probe
The contract check ran as an Ansible task in the middle of every provider deploy, and the two client checks ran the same way. A test that is part of the deploy cannot be run without deploying, cannot be re-run on its own, and reports its verdict as a deploy failure. Twenty-seven task files lose 491 lines to this.

It is now what it always was. Each provider ships files/test/test.sh, templates/test.env.j2 and meta/tests.yml, and test-e2e-cli stages one shared harness beside it: run.sh drives contract.sh in a throwaway container on the provider's own network, then isolation.sh for adapter-fronted providers. The read probe each provider offers moved from the calling task into meta/mcp.yml next to the allowlist it must satisfy, and the schema now rejects a read probe naming a tool outside that allowlist.

The bearer the test presents is the one a client resolves through mcp.credential, via the new mcp_client_bearer lookup over resolve_credential, which moved to utils.roles.applications.mcp so it is the same function mcp_servers renders every client connection with. The probe presented whatever the calling role passed, which for the fifteen adapter-fronted providers is a different secret than any client holds.

Sidecar isolation is read from the engine rather than measured inside the container, so it no longer needs a delegation to the node holding the task: attachment is compared by network name, which drops the gwbridge special case, and a swarm worker says it cannot measure instead of skipping silently.

Retrying is bounded by wall clock against MCP_DEADLINE_SECONDS, which scales through the same lookup('timeout') as the harness budget it has to stay under. A flag that is neither true nor false aborts rather than reading as off.

mcp-provider-probe becomes mcp-provider-cli-test: an enabled provider must ship the test rather than include the task. mcp-probe-bearer becomes mcp-adapter-bearer, tying ADAPTER_BEARER to the declared credential key now that no probe include carries it. A new integration test renders the shared env template for every provider through Ansible's own templar, so a later change to it breaks visibly instead of poisoning twenty deploys quietly.

Hermes and OpenClaw keep their client-side proof as CLI tests of their own.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-01 20:46:26 +02:00

47 lines
2.2 KiB
YAML

---
- name: "🔍 Read the MCP token this instance already issued"
ansible.builtin.set_fact:
gitea_mcp_token: "{{ lookup('mcp_credential', application_id) }}"
- name: "🔍 Resolve {{ application_id }} hosting node + container id"
ansible.builtin.include_tasks: "{{ lookup('path_absolute', 'roles/sys-svc-compose/tasks/utils/swarm/resolve_host_cid.yml') }}"
vars:
resolve_service_key: "{{ entity_name }}"
resolve_output_prefix: GITEA_API
resolve_compose_cid: "{{ GITEA_CONTAINER_ADDRESS }}"
- name: "🩺 Check the stored token against the running instance"
ansible.builtin.include_tasks: "{{ role_path }}/tasks/utils/mcp/probe.yml"
when: gitea_mcp_token | length > 0
- name: "🔑 Issue the access token MCP clients present"
ansible.builtin.include_tasks: "{{ role_path }}/tasks/utils/mcp/provision.yml"
when: gitea_mcp_token | length == 0 or gitea_mcp_token_probe.rc | default(1) != 0
- name: "🩺 Re-check the freshly minted token"
ansible.builtin.include_tasks: "{{ role_path }}/tasks/utils/mcp/probe.yml"
when: gitea_mcp_token_probe is not defined or gitea_mcp_token_probe.rc != 0
- name: "🛑 Refuse an instance whose MCP token every client would be rejected with"
ansible.builtin.assert:
that:
- gitea_mcp_token_probe.rc == 0
fail_msg: >-
Gitea rejected the token stored for {{ application_id }}, so every MCP
client would be configured with a bearer the API answers 401 to.
- name: "🩺 Verify the upstream sidecar answers that bearer"
ansible.builtin.include_tasks: "{{ role_path }}/tasks/utils/mcp/verify.yml"
- name: "🔑 Hand the minted upstream token to the adapter"
ansible.builtin.include_tasks: "{{ lookup('path_absolute', 'roles/svc-ai-mcp-adapter/tasks/upstream_key.yml') }}"
vars:
mcp_upstream_key_path: "{{ [GITEA_MCP_INSTANCE_DIR, 'upstream.env'] | path_join }}"
mcp_upstream_key: "{{ gitea_mcp_token }}"
- name: "🧱 Rebuild the MCP adapter of {{ application_id }} now the bearer exists"
ansible.builtin.include_tasks: "{{ lookup('path_absolute', 'roles/svc-ai-mcp-adapter/tasks/rebuild.yml') }}"
- name: "🚿 Flush compose handlers for {{ application_id }}"
ansible.builtin.meta: flush_handlers