Non blocking error message when Glances starts from a container (alpi…

…ne-dev image) #2991

.dockerignore

@@ -15,6 +15,7 @@
 
 # Include Config file
 !/docker-compose/glances.conf
+!/docker-files/docker-logger.json
 
 # Include Binary file
 !/docker-bin.sh

docker-files/alpine.Dockerfile

@@ -138,6 +138,10 @@ COPY --from=buildFull /venv /venv
 # RELEASE: dev - to be compatible with CI
 FROM full as dev
 
-# Forward access and error logs to Docker's log collector
-RUN ln -sf /dev/stdout /tmp/glances-root.log \
-    && ln -sf /dev/stderr /var/log/error.log
+# Add the specific logger configuration file for Docker dev
+# All logs will be forwarded to stdout
+COPY ./docker-files/docker-logger.json /app
+ENV LOG_CFG=/app/docker-logger.json
+
+WORKDIR /app
+CMD /venv/bin/python3 -m glances $GLANCES_OPT

docker-files/ubuntu.Dockerfile

@@ -128,6 +128,10 @@ COPY --from=buildFull /venv /venv
 FROM full as dev
 ARG PYTHON_VERSION
 
-# Forward access and error logs to Docker's log collector
-RUN ln -sf /dev/stdout /tmp/glances-root.log \
-    && ln -sf /dev/stderr /var/log/error.log
+# Add the specific logger configuration file for Docker dev
+# All logs will be forwarded to stdout
+COPY ./docker-files/docker-logger.json /app
+ENV LOG_CFG=/app/docker-logger.json
+
+WORKDIR /app
+CMD /venv/bin/python3 -m glances $GLANCES_OPT