Add version information to container

.github/workflows/docker-publish.yml

@@ -75,6 +75,8 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          build-args: |
+              VERSION_TAG=${{ github.ref_name }}
 
       # Sign the resulting Docker image digest except on PRs.
       # This will only write to the public Rekor transparency log when the Docker

Dockerfile

@@ -3,4 +3,6 @@ WORKDIR /app
 COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
+ARG VERSION_TAG=unknown
+ENV MQTT4DSMR_VERSION=$VERSION_TAG
 CMD [ "env", "SERIAL_DEVICE=/dev/ttyDSMR", "./mqtt4dsmr.py" ]

mqtt4dsmr.py

@@ -15,6 +15,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 import logging
+import os
 import sys
 from dsmr_parser.clients import SerialReader
 import paho.mqtt.client as mqtt
@@ -24,7 +25,9 @@
 
 
 def main():
-    logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s')
+    logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', level=logging.INFO)
+    version = os.getenv('MQTT4DSMR_VERSION', 'unknown')
+    logging.info(f'Using mqtt4dsmr {version}')
 
     cfg = Config()