REQUIRED INPUT (from ring:dev-cycle orchestrator):
- unit_id: [task/subtask being containerized]
- language: [go|typescript|python]
- service_type: [api|worker|batch|cli]
- implementation_files: [files from Gate 0]

OPTIONAL INPUT:
- gate0_handoff: [full Gate 0 output]
- new_dependencies: [deps added in Gate 0]
- new_env_vars: [env vars needed]
- new_services: [postgres, redis, etc.]
- existing_dockerfile: [true/false]
- existing_compose: [true/false]

if any REQUIRED input is missing:
  → STOP and report: "Missing required input: [field]"
  → Return to orchestrator with error

1. Check existing files:
   - Dockerfile: [EXISTS/MISSING]
   - docker-compose.yml: [EXISTS/MISSING]
   - .env.example: [EXISTS/MISSING]

2. Determine actions needed:
   - Dockerfile: CREATE / UPDATE / NONE
   - docker-compose.yml: CREATE / UPDATE / NONE
   - .env.example: CREATE / UPDATE / NONE

3. Identify services needed:
   - From new_services input
   - From language (Go → alpine base, TS → node base)
   - From service_type (api → expose port, worker → no port)

devops_state = {
  unit_id: [from input],
  dockerfile_action: "pending",
  compose_action: "pending",
  env_action: "pending",
  services: [],
  verification: {
    build: null,
    startup: null,
    health: null
  },
  iterations: 0,
  max_iterations: 3
}

Task:
  subagent_type: "ring:devops-engineer"
  description: "Create/update DevOps artifacts for [unit_id]"
  prompt: |
    ⛔ MANDATORY: Create all DevOps Artifacts

    ## Input Context
    - **Unit ID:** [unit_id]
    - **Language:** [language]
    - **Service Type:** [service_type]
    - **Implementation Files:** [implementation_files]
    - **New Dependencies:** [new_dependencies or "None"]
    - **New Environment Variables:** [new_env_vars or "None"]
    - **New Services Needed:** [new_services or "None"]

    ## Existing Files
    - Dockerfile: [EXISTS/MISSING]
    - docker-compose.yml: [EXISTS/MISSING]
    - .env.example: [EXISTS/MISSING]

    ## Standards Reference
    WebFetch: https://raw.githubusercontent.com/LerianStudio/ring/main/dev-team/docs/standards/devops.md

    You MUST implement all sections from devops.md.

    ## Requirements

    ### Dockerfile
    - Multi-stage build (builder → production)
    - Non-root USER (appuser)
    - Specific versions (no :latest)
    - HEALTHCHECK instruction
    - Layer caching optimization

    ### docker-compose.yml
    - Version: 3.8
    - App service with build context
    - Database/cache services as needed
    - Named volumes for persistence
    - Health checks with depends_on conditions
    - Network: app-network (bridge)

    ### .env.example
    - all variables with placeholders
    - Comments explaining each
    - Grouped by service
    - Required vs optional marked
    - **MANDATORY: Multi-tenant variables** (for ALL services):
      ```
      # Multi-tenant configuration (MANDATORY)
      MULTI_TENANT_ENABLED=false
      MULTI_TENANT_URL=
      ```

    ## Required Output Format

    ### Standards Coverage Table
    | # | Section (from devops.md) | Status | Evidence |
    |---|--------------------------|--------|----------|
    | 1 | Containers | ✅/❌ | Dockerfile:[line] |
    | 2 | Docker Compose | ✅/❌ | docker-compose.yml:[line] |
    | 3 | Environment | ✅/❌ | .env.example:[line] |
    | 4 | Health Checks | ✅/❌ | [file:line] |

    ### Files Created/Updated
    | File | Action | Key Changes |
    |------|--------|-------------|
    | Dockerfile | Created/Updated | [summary] |
    | docker-compose.yml | Created/Updated | [summary] |
    | .env.example | Created/Updated | [summary] |

    ### Verification Commands

    <verify_before_proceed>
    - docker-compose build succeeds
    - docker-compose up -d starts all services
    - docker-compose ps shows healthy status
    - docker-compose logs shows JSON format
    </verify_before_proceed>

    Execute these and report results:
    1. `docker-compose build` → [PASS/FAIL]
    2. `docker-compose up -d` → [PASS/FAIL]
    3. `docker-compose ps` → [all healthy?]
    4. `docker-compose logs app | head -5` → [JSON logs?]

    ### Compliance Summary
    - **all STANDARDS MET:** ✅ YES / ❌ no
    - **If no, what's missing:** [list sections]

Parse agent output:

1. Extract Standards Coverage Table
2. Extract Files Created/Updated
3. Extract Verification results

if "all STANDARDS MET: ✅ YES" and all verifications PASS:
  → devops_state.dockerfile_action = [from table]
  → devops_state.compose_action = [from table]
  → devops_state.env_action = [from table]
  → devops_state.verification = {build: PASS, startup: PASS, health: PASS}
  → Proceed to Step 7

if any section has ❌ or any verification FAIL:
  → devops_state.iterations += 1
  → if iterations >= max_iterations: Go to Step 8 (Escalate)
  → Re-dispatch agent with specific failures

Task:
  subagent_type: "ring:devops-engineer"
  description: "Fix DevOps issues for [unit_id]"
  prompt: |
    ⛔ FIX REQUIRED - DevOps Standards Not Met

    ## Issues Found
    [list ❌ sections and FAIL verifications]

    ## Standards Reference
    WebFetch: https://raw.githubusercontent.com/LerianStudio/ring/main/dev-team/docs/standards/devops.md

    Fix all issues and re-run verification commands.
    Return updated Standards Coverage Table with all ✅.

Generate skill output:

## DevOps Summary
**Status:** PASS
**Unit ID:** [unit_id]
**Iterations:** [devops_state.iterations]

## Files Changed
| File | Action | Summary |
|------|--------|---------|
| Dockerfile | [CREATED/UPDATED/UNCHANGED] | [summary] |
| docker-compose.yml | [CREATED/UPDATED/UNCHANGED] | [summary] |
| .env.example | [CREATED/UPDATED/UNCHANGED] | [summary] |

## Services Configured
| Service | Image | Port | Health Check |
|---------|-------|------|--------------|
| app | [built] | [port] | [healthcheck] |
| [db] | [image] | [port] | [healthcheck] |
| [cache] | [image] | [port] | [healthcheck] |

## Verification Results
| Check | Status | Output |
|-------|--------|--------|
| Build | ✅ PASS | Successfully built |
| Startup | ✅ PASS | All services Up |
| Health | ✅ PASS | All healthy |
| Logging | ✅ PASS | JSON structured |

## Handoff to Next Gate
- DevOps status: COMPLETE
- Services: [list]
- Env vars: [count] documented
- Verification: all PASS
- Ready for Gate 2 (SRE): YES

Generate skill output:

## DevOps Summary
**Status:** FAIL
**Unit ID:** [unit_id]
**Iterations:** [max_iterations] (MAX REACHED)

## Files Changed
[list what was created/updated]

## Issues Remaining
[list unresolved issues]

## Verification Results
[list PASS/FAIL for each check]

## Handoff to Next Gate
- DevOps status: FAILED
- Ready for Gate 2: no
- **Action Required:** User must manually resolve issues

⛔ ESCALATION: Max iterations (3) reached. User intervention required.

## DevOps Summary
**Status:** [PASS|FAIL|PARTIAL]
**Unit ID:** [unit_id]
**Duration:** [Xm Ys]
**Iterations:** [N]

## Files Changed
| File | Action |
|------|--------|
| Dockerfile | [CREATED/UPDATED/UNCHANGED] |
| docker-compose.yml | [CREATED/UPDATED/UNCHANGED] |
| .env.example | [CREATED/UPDATED/UNCHANGED] |

## Services Configured
| Service | Image | Port |
|---------|-------|------|
| [name] | [image] | [port] |

## Verification Results
| Check | Status |
|-------|--------|
| Build | ✅/❌ |
| Startup | ✅/❌ |
| Health | ✅/❌ |
| Logging | ✅/❌ |

## Handoff to Next Gate
- DevOps status: [COMPLETE|PARTIAL|FAILED]
- Ready for Gate 2: [YES|no]