Remove python-daemon dependency

remove python-daemon since it uses unsupported dependency 'lockfile'

Fixes: #379

Signed-off-by: Abhijeet Kasurde <[email protected]>

Author: Akasurde

ansible_runner/__main__.py

@@ -42,6 +42,7 @@
 from ansible_runner import cleanup
 from ansible_runner.utils import dump_artifact, Bunch, register_for_cleanup
 from ansible_runner.utils.capacity import get_cpu_count, get_mem_in_bytes, ensure_uuid
+from ansible_runner.utils.locks import TimeoutProcessLock
 from ansible_runner.runner import Runner
 from ansible_runner.exceptions import AnsibleRunnerException
 
@@ -814,9 +815,7 @@ def main(sys_args=None):
     if vargs.get('command') in ('start', 'run', 'transmit', 'worker', 'process'):
 
         if vargs.get('command') == 'start':
-            import daemon
-            from daemon.pidfile import TimeoutPIDLockFile
-            context = daemon.DaemonContext(pidfile=TimeoutPIDLockFile(pidfile))
+            context = TimeoutProcessLock(pidfile).locked(5)
         else:
             context = threading.Lock()
 

ansible_runner/exceptions.py

@@ -1,11 +1,14 @@
-
 class AnsibleRunnerException(Exception):
-    """ Generic Runner Error """
+    """Generic Runner Error"""
 
 
 class ConfigurationError(AnsibleRunnerException):
-    """ Misconfiguration of Runner """
+    """Misconfiguration of Runner"""
 
 
 class CallbackError(AnsibleRunnerException):
-    """ Exception occurred in Callback """
+    """Exception occurred in Callback"""
+
+
+class ProcessLockException(Exception):
+    """Exception occurred in Locking process using fasteners"""

ansible_runner/utils/locks.py

@@ -0,0 +1,16 @@
+from contextlib import contextmanager
+from fasteners import InterProcessLock
+from ansible_runner.exceptions import ProcessLockException
+
+
+class TimeoutProcessLock(InterProcessLock):
+
+    @contextmanager
+    def locked(self, timeout):
+        ok = self.acquire(timeout=timeout)
+        if not ok:
+            raise ProcessLockException()
+        try:
+            yield
+        finally:
+            self.release()

requirements.txt

@@ -1,5 +1,5 @@
 pexpect>=4.5
 packaging
-python-daemon
+fasteners>=0.16
 pyyaml
 six

tools/requirements.txt

@@ -6,6 +6,6 @@ pypsrp[kerberos,credssp]
 pywinrm[kerberos,credssp]
 toml
 pexpect>=4.5
-python-daemon
+fasteners>=0.16
 pyyaml
 six