release: v0.9.3 [skip ci]

.taskid

@@ -1 +1 @@
-DEVX-20
+DEVX-23

CHANGELOG.md

@@ -2,6 +2,24 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.9.3] - 2026-06-24
+
+### Bug Fixes
+
+- Use tempfile for dockerd log to fix CI permission error
+
+## [0.9.2] - 2026-06-24
+
+### Bug Fixes
+
+- Use vfs storage driver for Docker-in-Docker in CI
+
+## [0.9.1] - 2026-06-23
+
+### Bug Fixes
+
+- Always start dockerd in CI runner for molecule tests
+
 ## [0.9.0] - 2026-06-23
 
 ### Features

src/devx/__init__.py

@@ -1,3 +1,3 @@
 """devx — reusable development and CI/CD tools for oblachno-oss projects."""
 
-__version__ = "0.9.0"
+__version__ = "0.9.3"

src/devx/molecule/start_docker.py

@@ -1,10 +1,10 @@
 #!/usr/bin/env python3
 """Start a Docker daemon inside a CI runner container (Docker-in-Docker).
 
-CI runners (e.g. ``gitea/runner-images:ubuntu-latest``) may not have a
-Docker daemon running. This module starts ``dockerd`` in the background
-and waits for it to become ready, or exits immediately if Docker is
-already available.
+CI runners (e.g. ``gitea/runner-images:ubuntu-latest``) may have the host's
+Docker socket mounted, but molecule needs a local Docker daemon to create
+nested containers. This module always starts ``dockerd`` in the background
+and waits for it to become ready.
 
 Usage::
 
@@ -15,6 +15,7 @@ from __future__ import annotations
 
 import subprocess  # nosec B404
 import sys
+import tempfile
 import time
 
 import click
@@ -22,7 +23,6 @@ import click
 from devx.i18n import _
 
 DEFAULT_TIMEOUT = 30
-DOCKERD_LOG = "/var/log/dockerd.log"
 
 
 def is_docker_ready() -> bool:
@@ -38,18 +38,19 @@ def is_docker_ready() -> bool:
 def start_docker_daemon(timeout: int = DEFAULT_TIMEOUT) -> bool:
     """Start dockerd in the background and wait for it to be ready.
 
-    Returns ``True`` if Docker is ready (either already running or
-    successfully started), ``False`` if it failed to start within
-    the timeout.
-    """
-    if is_docker_ready():
-        click.echo(_("Docker daemon already running"))
-        return True
+    Always starts a local dockerd even if ``docker info`` succeeds,
+    because the host socket may be mounted but not suitable for
+    molecule's nested container creation.
 
+    Returns ``True`` if Docker is ready, ``False`` if it failed to
+    start within the timeout.
+    """
     click.echo(_("Starting Docker daemon..."))
-    log_file = open(DOCKERD_LOG, "w")  # noqa: SIM115
+    log_file = tempfile.NamedTemporaryFile(  # noqa: SIM115
+        mode="w", suffix="dockerd.log", delete=False
+    )
     subprocess.Popen(  # nosec B603 B607
-        ["dockerd"],
+        ["dockerd", "--storage-driver", "vfs"],
         stdout=log_file,
         stderr=subprocess.STDOUT,
         start_new_session=True,

src/devx/translations.json

@@ -419,13 +419,6 @@
     "ru": "Created release commit.",
     "zh": "Created release commit."
   },
-  "Docker daemon already running": {
-    "bg": "Docker daemon already running",
-    "de": "Docker-Daemon läuft bereits",
-    "en": "Docker daemon already running",
-    "ru": "Docker-демон уже запущен",
-    "zh": "Docker 守护进程已在运行"
-  },
   "Docker daemon failed to start": {
     "bg": "Docker daemon failed to start",
     "de": "Docker-Daemon konnte nicht gestartet werden",

tests/unit/test_start_docker.py

@@ -1,6 +1,6 @@
 """Unit tests for devx.molecule.start_docker."""
 
-from unittest.mock import MagicMock, mock_open, patch
+from unittest.mock import MagicMock, patch
 
 from click.testing import CliRunner
 
@@ -21,40 +21,36 @@ class TestIsDockerReady:
 
 
 class TestStartDockerDaemon:
-    @patch("devx.molecule.start_docker.is_docker_ready", return_value=True)
-    def test_already_running(self, mock_ready: MagicMock) -> None:
-        assert start_docker_daemon() is True
-        mock_ready.assert_called_once()
-
     @patch("devx.molecule.start_docker.time.sleep")
     @patch("devx.molecule.start_docker.is_docker_ready")
     @patch("devx.molecule.start_docker.subprocess.Popen")
-    @patch("builtins.open", new_callable=mock_open)
+    @patch("devx.molecule.start_docker.tempfile.NamedTemporaryFile")
     def test_starts_successfully(
         self,
-        mock_file: MagicMock,
+        mock_ntf: MagicMock,
         mock_popen: MagicMock,
         mock_ready: MagicMock,
         mock_sleep: MagicMock,
     ) -> None:
-        # First call: initial check (not ready). Second: first loop iteration (ready).
+        mock_ntf.return_value = MagicMock()
+        # First loop iteration: dockerd not ready yet. Second: ready.
         mock_ready.side_effect = [False, True]
         assert start_docker_daemon(timeout=5) is True
         mock_popen.assert_called_once()
-        mock_sleep.assert_not_called()
+        mock_sleep.assert_called_once_with(1)
 
     @patch("devx.molecule.start_docker.time.sleep")
     @patch("devx.molecule.start_docker.is_docker_ready", return_value=False)
     @patch("devx.molecule.start_docker.subprocess.Popen")
-    @patch("builtins.open", new_callable=mock_open)
+    @patch("devx.molecule.start_docker.tempfile.NamedTemporaryFile")
     def test_fails_after_timeout(
         self,
-        mock_file: MagicMock,
+        mock_ntf: MagicMock,
         mock_popen: MagicMock,
         mock_ready: MagicMock,
         mock_sleep: MagicMock,
     ) -> None:
-        # is_docker_ready always returns False: 1 initial + 3 loop iterations = 4 calls
+        mock_ntf.return_value = MagicMock()
         assert start_docker_daemon(timeout=3) is False
         mock_popen.assert_called_once()
         assert mock_sleep.call_count == 3
@@ -62,17 +58,34 @@ class TestStartDockerDaemon:
     @patch("devx.molecule.start_docker.time.sleep")
     @patch("devx.molecule.start_docker.is_docker_ready")
     @patch("devx.molecule.start_docker.subprocess.Popen")
-    @patch("builtins.open", new_callable=mock_open)
-    def test_custom_timeout(
+    @patch("devx.molecule.start_docker.tempfile.NamedTemporaryFile")
+    def test_ready_on_first_check(
         self,
-        mock_file: MagicMock,
+        mock_ntf: MagicMock,
         mock_popen: MagicMock,
         mock_ready: MagicMock,
         mock_sleep: MagicMock,
     ) -> None:
-        # First call: initial check (not ready). Then 9 loop iterations (not ready),
-        # 10th iteration (ready).
-        mock_ready.side_effect = [False] * 10 + [True]
+        mock_ntf.return_value = MagicMock()
+        mock_ready.return_value = True
+        assert start_docker_daemon(timeout=5) is True
+        mock_popen.assert_called_once()
+        mock_sleep.assert_not_called()
+
+    @patch("devx.molecule.start_docker.time.sleep")
+    @patch("devx.molecule.start_docker.is_docker_ready")
+    @patch("devx.molecule.start_docker.subprocess.Popen")
+    @patch("devx.molecule.start_docker.tempfile.NamedTemporaryFile")
+    def test_custom_timeout(
+        self,
+        mock_ntf: MagicMock,
+        mock_popen: MagicMock,
+        mock_ready: MagicMock,
+        mock_sleep: MagicMock,
+    ) -> None:
+        mock_ntf.return_value = MagicMock()
+        # 9 iterations not ready, 10th ready.
+        mock_ready.side_effect = [False] * 9 + [True]
         assert start_docker_daemon(timeout=10) is True
         assert mock_sleep.call_count == 9