apt.rst

Local APT Repository

This section provides steps on how to configure your own http:// APT repository to fetch packages from. This might be useful if you have some customized packages and need to build against these packages. If you build docker image, this helps to reduce image size since you avoid storing packages in the image.

We will demonstrate configuring of APT repository via dedicated docker container. First, build a docker image with APT web server using the following Dockerfile:

$ cat Dockerfile
FROM ubuntu:20.04

RUN apt-get update && \
  DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
    aptly && \
  rm -rf /var/lib/apt/lists/*

# substitute this with other command to populate /opt/pkgs
# directory with required *.deb packages
COPY pkgs /opt/pkgs

RUN aptly repo create intel-gfx
RUN aptly repo add intel-gfx /opt/pkgs
RUN aptly publish repo -skip-signing -distribution=intel-gfx intel-gfx
CMD ["/usr/bin/aptly", "serve", "-listen=:8080"]

$ docker build $(env | grep -E '(_proxy=|_PROXY)' | sed 's/^/--build-arg /') \
  -f Dockerfile -t apt-webserver .

Above docker file assumes that .deb packages are stored locally in pkgs directory.

Now start APT webserver:

docker network create build
docker create --network=build --name=local-apt apt-webserver
docker start apt-webserver

Now you should be able to fetch packages from your APT repository adding this line to /etc/apt/sources.list:

echo "deb [trusted=yes] http://<ip>:8080/ intel-gfx main"

If you are using this under docker, make sure to run docker build under same network as we've created for apt-webserver and use IP address in this network, i.e.:

IP=$(docker inspect -f '{{.NetworkSettings.Networks.build.IPAddress}}' apt-webserver)
docker build --network=build \
  --build-arg INTEL_GFX_KEY_URL="" \
  --build-arg INTEL_GFX_APT_REPO="deb [trusted=yes] http://$IP:8080/ intel-gfx main" \
  ...