Move to Ubuntu 24.04 (#23)

* Move to Ubuntu 24.04

* Refactor the docker file for build/run stage

* Skip arm for now

* Fix up logging in the docker image

.github/workflows/docker.yaml

@@ -38,7 +38,7 @@ jobs:
         with:
           cache-key: os-capacity
           context: .
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           push: true
           tags: ${{ steps.image-meta.outputs.tags }}
           labels: ${{ steps.image-meta.outputs.labels }}

.github/workflows/tox.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10']
+        python-version: ['3.12']
 
     steps:
     - uses: actions/checkout@v4

Dockerfile

@@ -1,10 +1,52 @@
-FROM ubuntu:22.04
+FROM ubuntu:24.04 AS build-image
 
-RUN apt-get update && apt-get upgrade -y && apt-get install python3-pip tini -y && apt-get clean
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install python3-venv python3-dev gcc git -y && \
+    rm -rf /var/lib/apt/lists/*
 
-COPY ./requirements.txt /opt/os-capacity/requirements.txt
-RUN pip install -U -r /opt/os-capacity/requirements.txt
+# build into a venv we can copy across
+RUN python3 -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
 
-COPY ./os_capacity/prometheus.py /opt/os-capacity/prometheus.py
+COPY ./requirements.txt /os-capacity/requirements.txt
+RUN pip install -U pip setuptools
+RUN pip install --requirement /os-capacity/requirements.txt
+
+COPY . /os-capacity
+RUN pip install -U /os-capacity
+
+#
+# Now the image we run with
+#
+FROM ubuntu:24.04 AS run-image
+
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install --no-install-recommends python3 tini ca-certificates -y && \
+    rm -rf /var/lib/apt/lists/*
+
+# Copy accross the venv
+COPY --from=build-image /opt/venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+
+# Create the user that will be used to run the app
+ENV APP_UID=1001
+ENV APP_GID=1001
+ENV APP_USER=app
+ENV APP_GROUP=app
+RUN groupadd --gid $APP_GID $APP_GROUP && \
+    useradd \
+      --no-create-home \
+      --no-user-group \
+      --gid $APP_GID \
+      --shell /sbin/nologin \
+      --uid $APP_UID \
+      $APP_USER
+
+# Don't buffer stdout and stderr as it breaks realtime logging
+ENV PYTHONUNBUFFERED=1
+
+USER $APP_UID
 ENTRYPOINT ["tini", "--"]
-CMD ["python3", "-u", "/opt/os-capacity/prometheus.py"]
+CMD ["os_capacity"]

README.rst

@@ -46,7 +46,7 @@ Or just run via docker or similar:::
    docker run -d --name os_capacity \
      --mount type=bind,source=/etc/kolla/os-capacity/,target=/etc/openstack \
      --env OS_CLOUD=openstack --env OS_CLIENT_CONFIG_FILE=/etc/openstack/clouds.yaml \
-     -p 9000:9000 ghcr.io/stackhpc/os-capacity:e08ecb8
+     -p 9000:9000 ghcr.io/stackhpc/os-capacity:master
    curl localhost:9000