created script and dockerfile

Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3.7
+
+VOLUME ["/in", "/out"]
+
+RUN python -m pip install inotify
+
+COPY script.py /
+
+CMD ["python", "-u", "/script.py"]

script.py

@@ -0,0 +1,78 @@
+import inotify.adapters
+import os
+import shutil
+import time
+
+
+config = {
+    'dirs':{
+        'from': os.getenv('IWATCH_FROM', '/in'),
+        'to': os.getenv('IWATCH_TO', '/out'),
+    },
+    'action': 'move',
+    'timeout': int(os.getenv('IWATCH_TIMEOUT', 30)),
+}
+
+def _main():
+    i = inotify.adapters.InotifyTree(config['dirs']['from'])
+
+    files = {}
+    lastcount = 0
+
+    print('Looking for existing files in in')
+    for dirpath, dirnames, filenames in os.walk(config['dirs']['from']):
+        for f in filenames:
+            print('found {}'.format(f))
+            files[dirpath + f] = {
+                'path': dirpath,
+                'filename': f,
+                'time': time.time()
+            }
+
+    print('waiting for events')
+    for event in i.event_gen(yield_nones=True):
+        if event is None:
+            completed = []
+            for filename, file in files.items():
+                if file['time'] < time.time()-config['timeout']:
+                    completed.append(filename)
+                    fpath = os.path.join(file['path'], file['filename'])
+                    if not os.path.isfile(fpath):
+                        continue
+                    if config['action'] == 'move':
+                        tpath = fpath.replace(config['dirs']['from'], config['dirs']['to'])
+                        shutil.move(fpath, tpath)
+                        print('moved {}'.format(fpath))
+                    else:
+                        print('action unknown')
+            for filename in completed:
+                del files[filename]
+            if len(files) != lastcount:
+                print('waiting for {} files to be completed'.format(len(files)))
+                lastcount = len(files)
+            continue
+        (_, type_names, path, filename) = event
+        if filename == '' or any(filter(lambda x: x in ['IN_MOVED_FROM'], type_names)):
+            continue
+
+        fname = path + filename 
+        if 'IN_DELETE' in type_names:
+            print('removed file {}/{}'.format(path, filename))
+            if fname in files:
+                del files[path + filename]
+            continue
+
+        if not any(filter(lambda x: x in ['IN_MODIFY', 'IN_CREATE'], type_names)):
+            continue
+
+        print("PATH=[{}] FILENAME=[{}] EVENT_TYPES={}".format( path, filename, type_names))
+
+        files[path + filename] = {
+            'path': path,
+            'filename': filename,
+            'time': time.time()
+        }
+
+
+if __name__ == '__main__':
+    _main()