Migration to Alpine 3.19 and update documentation regarding default g…

…lances.conf file in Docker images

README.rst

@@ -221,22 +221,24 @@ Run last version of Glances container in *console mode*:
 
     docker run --rm -e TZ="${TZ}" -v /var/run/docker.sock:/var/run/docker.sock:ro -v /run/user/1000/podman/podman.sock:/run/user/1000/podman/podman.sock:ro --pid host --network host -it nicolargo/glances:latest-full
 
+By default, the /etc/glances/glances.conf file is used (based on docker-compose/glances.conf).
+
 Additionally, if you want to use your own glances.conf file, you can
 create your own Dockerfile:
 
 .. code-block:: console
 
     FROM nicolargo/glances:latest
-    COPY glances.conf /etc/glances.conf
-    CMD python -m glances -C /etc/glances.conf $GLANCES_OPT
+    COPY glances.conf /root/.config/glances/glances.conf
+    CMD python -m glances -C /root/.config/glances/glances.conf $GLANCES_OPT
 
 Alternatively, you can specify something along the same lines with
 docker run options (notice the `GLANCES_OPT` environment
 variable setting parameters for the glances startup command):
 
 .. code-block:: console
 
-    docker run -e TZ="${TZ}" -v `pwd`/glances.conf:/etc/glances.conf -v /var/run/docker.sock:/var/run/docker.sock:ro -v /run/user/1000/podman/podman.sock:/run/user/1000/podman/podman.sock:ro --pid host -e GLANCES_OPT="-C /etc/glances.conf" -it nicolargo/glances:latest-full
+    docker run -e TZ="${TZ}" -v `pwd`/glances.conf:/root/.config/glances/glances.conf -v /var/run/docker.sock:/var/run/docker.sock:ro -v /run/user/1000/podman/podman.sock:/run/user/1000/podman/podman.sock:ro --pid host -e GLANCES_OPT="-C /etc/glances.conf" -it nicolargo/glances:latest-full
 
 Where \`pwd\`/glances.conf is a local directory containing your glances.conf file.
 

docker-files/alpine.Dockerfile

@@ -9,7 +9,8 @@
 # WARNING: the Alpine image version and Python version should be set.
 # Alpine 3.18 tag is a link to the latest 3.18.x version.
 # Be aware that if you change the Alpine version, you may have to change the Python version.
-ARG IMAGE_VERSION=3.18
+
+ARG IMAGE_VERSION=3.19
 ARG PYTHON_VERSION=3.11
 
 ##############################################################################
@@ -84,7 +85,7 @@ RUN python${PYTHON_VERSION} -m pip install --target="/venv/lib/python${PYTHON_VE
 FROM base as release
 
 # Copy source code and config file
-COPY ./docker-compose/glances.conf /etc/glances.conf
+COPY ./docker-compose/glances.conf /etc/glances/glances.conf
 COPY /glances /app/glances
 
 # Copy binary and update PATH

docker-files/ubuntu.Dockerfile

@@ -77,7 +77,7 @@ RUN python${PYTHON_VERSION} -m pip install --target="/venv/lib/python${PYTHON_VE
 FROM base as release
 
 # Copy Glances source code and config file
-COPY ./docker-compose/glances.conf /etc/glances.conf
+COPY ./docker-compose/glances.conf /etc/glances/glances.conf
 COPY /glances /app/glances
 
 # Copy binary and update PATH