v0.2.1: redeploy_project post-start polling (30s timeout)

DSM starts containers asynchronously - start_project returns immediately
while containers are still initialising. Adds _wait_for_project_running:
polls SYNO.Docker.Project/list every 2s up to 30s after issuing start.
Reports RUNNING on success; emits a warning instead of failure on timeout
so callers can still verify with get_project_status.

Applies to all three redeploy paths (RUNNING, STOPPED, BUILD_FAILED).

Also bumps version 0.2.0 → 0.2.1 and adds CHANGELOG entry.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -2,6 +2,25 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.2.1] - 2026-04-21
+
+### Fixed
+
+- `redeploy_project`: After issuing `start`, the tool now polls the project status every 2 seconds
+  for up to 30 seconds until the project reaches `RUNNING`. Previously DSM returned immediately
+  while containers were still starting, causing the project to appear as `exited` when checked
+  right after redeploy. On timeout a warning is returned instead of an error.
+- `delete_image`: Now distinguishes between running and stopped container references.
+  A stopped container holding the image produces a clear hint to use `delete_container`
+  or `system_prune` instead of a generic "in use" error.
+- `redeploy_project` (BUILD_FAILED path): Added explicit image pull step before restart
+  (`stop → pull → start`). Previously the old cached image could be reused.
+
+### Added
+
+- `delete_container` — delete a stopped container by name; refuses if container is still running;
+  requires `confirmed=True`.
+
 ## [0.2.0] - 2026-04-14
 
 ### Added

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "mcp-synology-container"
-version = "0.2.0"
+version = "0.2.1"
 description = "MCP server for Synology Container Manager"
 requires-python = ">=3.12"
 dependencies = [

src/mcp_synology_container/modules/projects.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import asyncio
 import contextlib
 import logging
 from typing import TYPE_CHECKING, Any
@@ -14,6 +15,9 @@ if TYPE_CHECKING:
 
 logger = logging.getLogger(__name__)
 
+_POLL_INTERVAL = 2  # seconds between status checks
+_POLL_TIMEOUT = 30  # maximum seconds to wait for RUNNING
+
 
 def register_projects(mcp: FastMCP, config: AppConfig, client: DsmClient) -> None:
     """Register all project management tools with the MCP server."""
@@ -124,6 +128,10 @@ def register_projects(mcp: FastMCP, config: AppConfig, client: DsmClient) -> Non
         - STOPPED     → start directly (nothing to stop)
         - BUILD_FAILED → stop, pull images, then start
 
+        After issuing start, polls the project status every 2 seconds for up
+        to 30 seconds until the project reaches RUNNING. Reports the final
+        status; emits a warning on timeout instead of failing.
+
         This operation will briefly take the project offline.
         Requires confirmation before executing.
 
@@ -149,30 +157,30 @@ def register_projects(mcp: FastMCP, config: AppConfig, client: DsmClient) -> Non
         try:
             if status == "STOPPED":
                 results.append("Project is STOPPED — starting directly.")
-                results.append("Step 1/1: Starting project...")
+                results.append("Step 1/2: Starting project...")
                 await client.request("SYNO.Docker.Project", "start", params={"id": project_id})
-                results.append("  Project started.")
+                results.append("  Start issued.")
 
             elif status == "BUILD_FAILED":
-                results.append("Step 1/3: Stopping failed build...")
+                results.append("Step 1/4: Stopping failed build...")
                 with contextlib.suppress(Exception):
                     await client.request("SYNO.Docker.Project", "stop", params={"id": project_id})
                 results.append("  Build stopped.")
-                results.append("Step 2/3: Pulling updated images...")
+                results.append("Step 2/4: Pulling updated images...")
                 with contextlib.suppress(Exception):
                     await client.request("SYNO.Docker.Image", "pull", params={"id": project_id})
                 results.append("  Images pulled.")
-                results.append("Step 3/3: Starting project...")
+                results.append("Step 3/4: Starting project...")
                 await client.request("SYNO.Docker.Project", "start", params={"id": project_id})
-                results.append("  Project started.")
+                results.append("  Start issued.")
 
             elif status in ("RUNNING", ""):
-                results.append("Step 1/2: Stopping project...")
+                results.append("Step 1/3: Stopping project...")
                 await client.request("SYNO.Docker.Project", "stop", params={"id": project_id})
                 results.append("  Project stopped.")
-                results.append("Step 2/2: Starting project...")
+                results.append("Step 2/3: Starting project...")
                 await client.request("SYNO.Docker.Project", "start", params={"id": project_id})
-                results.append("  Project started.")
+                results.append("  Start issued.")
 
             else:
                 return (
@@ -180,7 +188,21 @@ def register_projects(mcp: FastMCP, config: AppConfig, client: DsmClient) -> Non
                     f"Workaround: use stop_project + start_project separately."
                 )
 
+            # Poll until RUNNING or timeout
+            poll_step = (
+                "2/2" if status == "STOPPED" else ("4/4" if status == "BUILD_FAILED" else "3/3")
+            )
+            results.append(f"Step {poll_step}: Waiting for project to reach RUNNING state...")
+            final_status = await _wait_for_project_running(client, project_name)
+            if final_status == "RUNNING":
+                results.append("  Project is RUNNING.")
                 results.append(f"\nProject '{project_name}' redeployed successfully.")
+            else:
+                results.append(
+                    f"  Warning: project status is '{final_status}' after {_POLL_TIMEOUT}s. "
+                    f"Containers may still be starting — check with get_project_status."
+                )
+                results.append(f"\nProject '{project_name}' start issued (status: {final_status}).")
 
         except Exception as e:
             results.append(f"Error during redeploy: {e}")
@@ -211,6 +233,39 @@ async def _find_project(client: DsmClient, name: str) -> dict[str, Any] | None:
     return None
 
 
+async def _wait_for_project_running(
+    client: DsmClient,
+    name: str,
+    timeout: int = _POLL_TIMEOUT,
+    interval: int = _POLL_INTERVAL,
+) -> str:
+    """Poll until the project reaches RUNNING status or timeout expires.
+
+    Args:
+        client: DsmClient instance.
+        name: Project name to watch.
+        timeout: Maximum seconds to wait (default 30).
+        interval: Seconds between polls (default 2).
+
+    Returns:
+        Final project status string (may not be "RUNNING" on timeout).
+    """
+    elapsed = 0
+    while elapsed < timeout:
+        await asyncio.sleep(interval)
+        elapsed += interval
+        project = await _find_project(client, name)
+        if project is None:
+            continue
+        current = (project.get("status") or "").upper()
+        logger.debug("Polling '%s': status=%s elapsed=%ds", name, current, elapsed)
+        if current == "RUNNING":
+            return current
+    # Return whatever status we last saw (or UNKNOWN on repeated failures)
+    project = await _find_project(client, name)
+    return (project.get("status") or "UNKNOWN").upper() if project else "UNKNOWN"
+
+
 def _format_project_detail(project: dict[str, Any]) -> str:
     """Format project details as human-readable text."""
     lines = [

tests/test_modules/test_projects.py

@@ -1,11 +1,11 @@
 """Tests for modules/projects.py."""
 
+from unittest.mock import AsyncMock, patch
+
 import pytest
-from unittest.mock import AsyncMock, MagicMock
 
 from mcp_synology_container.modules.projects import _find_project, _format_project_detail
 
-
 SAMPLE_PROJECTS = {
     "uuid-1": {
         "id": "uuid-1",
@@ -83,8 +83,8 @@ def test_format_project_detail_no_containers():
 @pytest.mark.asyncio
 async def test_list_projects_tool():
     """Test list_projects tool via function registration."""
-    from mcp_synology_container.modules.projects import register_projects
     from mcp_synology_container.config import AppConfig, ConnectionConfig
+    from mcp_synology_container.modules.projects import register_projects
 
     config = AppConfig(
         schema_version=1,
@@ -114,8 +114,8 @@ async def test_list_projects_tool():
 
 @pytest.mark.asyncio
 async def test_stop_project_requires_confirmation():
-    from mcp_synology_container.modules.projects import register_projects
     from mcp_synology_container.config import AppConfig, ConnectionConfig
+    from mcp_synology_container.modules.projects import register_projects
 
     config = AppConfig(
         schema_version=1,
@@ -141,8 +141,8 @@ async def test_stop_project_requires_confirmation():
 
 @pytest.mark.asyncio
 async def test_redeploy_project_requires_confirmation():
-    from mcp_synology_container.modules.projects import register_projects
     from mcp_synology_container.config import AppConfig, ConnectionConfig
+    from mcp_synology_container.modules.projects import register_projects
 
     config = AppConfig(
         schema_version=1,
@@ -172,8 +172,8 @@ async def test_redeploy_project_requires_confirmation():
 
 
 def make_projects_tools(client):
-    from mcp_synology_container.modules.projects import register_projects
     from mcp_synology_container.config import AppConfig, ConnectionConfig
+    from mcp_synology_container.modules.projects import register_projects
 
     config = AppConfig(
         schema_version=1,
@@ -206,42 +206,57 @@ def project_list(status: str) -> dict:
     }
 
 
-@pytest.mark.asyncio
-async def test_redeploy_running_project():
-    """RUNNING project: stop then start (2 steps)."""
+def make_stateful_redeploy_mock(initial_status: str, stop_raises=None, pull_raises=None):
+    """Create a stateful client mock for redeploy tests.
+
+    Returns (client, calls_list).  After ``start`` is called, subsequent
+    ``list`` calls return RUNNING so the polling loop terminates immediately.
+    asyncio.sleep is NOT patched here — patch it at call-site.
+    """
     client = AsyncMock()
     calls = []
+    start_called = False
 
     async def mock_request(api, method, **kwargs):
+        nonlocal start_called
         calls.append((api, method))
-        return project_list("RUNNING") if method == "list" else {}
+        if method == "start":
+            start_called = True
+        if method == "stop" and stop_raises:
+            raise stop_raises
+        if method == "pull" and pull_raises:
+            raise pull_raises
+        if method == "list":
+            return project_list("RUNNING") if start_called else project_list(initial_status)
+        return {}
 
     client.request.side_effect = mock_request
+    return client, calls
+
+
+@pytest.mark.asyncio
+async def test_redeploy_running_project():
+    """RUNNING project: stop then start; polls until RUNNING."""
+    client, calls = make_stateful_redeploy_mock("RUNNING")
     tools = make_projects_tools(client)
 
+    with patch("mcp_synology_container.modules.projects.asyncio.sleep"):
         result = await tools["redeploy_project"]("myapp", confirmed=True)
 
     assert "redeployed successfully" in result
     methods = [m for _, m in calls]
     assert "stop" in methods
     assert "start" in methods
-    # stop must come before start
     assert methods.index("stop") < methods.index("start")
 
 
 @pytest.mark.asyncio
 async def test_redeploy_stopped_project_starts_directly():
-    """STOPPED project: skip stop, just start."""
-    client = AsyncMock()
-    calls = []
-
-    async def mock_request(api, method, **kwargs):
-        calls.append((api, method))
-        return project_list("STOPPED") if method == "list" else {}
-
-    client.request.side_effect = mock_request
+    """STOPPED project: skip stop, just start; polls until RUNNING."""
+    client, calls = make_stateful_redeploy_mock("STOPPED")
     tools = make_projects_tools(client)
 
+    with patch("mcp_synology_container.modules.projects.asyncio.sleep"):
         result = await tools["redeploy_project"]("myapp", confirmed=True)
 
     assert "redeployed successfully" in result
@@ -253,51 +268,69 @@ async def test_redeploy_stopped_project_starts_directly():
 
 @pytest.mark.asyncio
 async def test_redeploy_build_failed_project():
-    """BUILD_FAILED project: stop, pull images, then start (3 steps)."""
-    client = AsyncMock()
-    calls = []
-
-    async def mock_request(api, method, **kwargs):
-        calls.append((api, method))
-        return project_list("BUILD_FAILED") if method == "list" else {}
-
-    client.request.side_effect = mock_request
+    """BUILD_FAILED project: stop → pull → start; polls until RUNNING."""
+    client, calls = make_stateful_redeploy_mock("BUILD_FAILED")
     tools = make_projects_tools(client)
 
+    with patch("mcp_synology_container.modules.projects.asyncio.sleep"):
         result = await tools["redeploy_project"]("myapp", confirmed=True)
 
     assert "redeployed successfully" in result
     methods = [m for _, m in calls]
     assert "stop" in methods
-    assert "pull" in methods  # New: pull step
+    assert "pull" in methods
     assert "start" in methods
-    # Order: stop → pull → start
     assert methods.index("stop") < methods.index("pull")
     assert methods.index("pull") < methods.index("start")
 
 
 @pytest.mark.asyncio
 async def test_redeploy_build_failed_stop_error_nonfatal():
-    """BUILD_FAILED: stop/pull failure must not abort the redeploy."""
+    """BUILD_FAILED: stop/pull failures must not abort the redeploy."""
     from mcp_synology_container.dsm_client import SynologyError
 
+    client, _ = make_stateful_redeploy_mock(
+        "BUILD_FAILED",
+        stop_raises=SynologyError("already stopped", code=2101),
+        pull_raises=SynologyError("pull failed", code=2102),
+    )
+    tools = make_projects_tools(client)
+
+    with patch("mcp_synology_container.modules.projects.asyncio.sleep"):
+        result = await tools["redeploy_project"]("myapp", confirmed=True)
+
+    assert "redeployed successfully" in result
+
+
+@pytest.mark.asyncio
+async def test_redeploy_poll_timeout():
+    """If project never reaches RUNNING after start, a warning is emitted."""
     client = AsyncMock()
+    start_called = False
 
     async def mock_request(api, method, **kwargs):
+        nonlocal start_called
+        if method == "start":
+            start_called = True
         if method == "list":
-            return project_list("BUILD_FAILED")
-        if method == "stop":
-            raise SynologyError("already stopped", code=2101)
-        if method == "pull":
-            raise SynologyError("pull failed", code=2102)
-        return {}  # start succeeds
+            # Before start: return RUNNING so initial status check picks a valid path.
+            # After start: return STARTING to simulate a stuck container — triggers timeout.
+            return project_list("STARTING") if start_called else project_list("RUNNING")
+        return {}
 
     client.request.side_effect = mock_request
     tools = make_projects_tools(client)
 
+    # Use tiny timeout so the test is instant (interval=1, timeout=1 → 1 poll)
+    with (
+        patch("mcp_synology_container.modules.projects.asyncio.sleep"),
+        patch("mcp_synology_container.modules.projects._POLL_TIMEOUT", 1),
+        patch("mcp_synology_container.modules.projects._POLL_INTERVAL", 1),
+    ):
         result = await tools["redeploy_project"]("myapp", confirmed=True)
 
-    assert "redeployed successfully" in result
+    assert "Warning" in result
+    assert "redeployed successfully" not in result
 
 
 @pytest.mark.asyncio

uv.lock

@@ -362,7 +362,7 @@ wheels = [
 
 [[package]]
 name = "mcp-synology-container"
-version = "0.2.0"
+version = "0.2.1"
 source = { editable = "." }
 dependencies = [
     { name = "click" },