fix: no stdout visible inside docker -> use unbuffered mode; use alpine version of python base image

Dockerfile

@@ -1,10 +1,12 @@
-FROM python:3.8
+FROM python:3.8-alpine
 
 WORKDIR /usr/src/
 
 COPY requirements.txt ./
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip3 install --no-cache-dir -r requirements.txt
 
 COPY ./src/ ./
+RUN chmod +x ./logMeetingData.py
 
-CMD [ "python", "./logMeetingData.py" ]
+# unbuffered output option otherwise script sleeps before any output appears
+CMD [ "python", "-u", "./logMeetingData.py" ]

docker-compose.yml

@@ -2,9 +2,8 @@ version: '3.7'
 services:
   dk-gen:
     build: .
-    environment:
+#    environment:
-      - PYTHONPATH=/usr/src/
+#      - PYTHONPATH=/usr/src/
     volumes:
-#      - ./src/:/usr/src/
       - ./secret:/usr/secret
       - ./data:/usr/data

src/logMeetingData.py

@@ -13,7 +13,7 @@ def sleepFiveMin(verbose=False):
     fiveMinutes = 5 * minute
 
     if verbose:
-        print("> Sleeping for five minutes ...")
+        print(">> Sleeping for five minutes <<")
     time.sleep(fiveMinutes)