Building Dockerfile is failed due to missed BuildKit #47
Description
Installation README does not mention that BuildKit 1 is required for building a Docker image. Without BuildKit
building on Ubuntu 24.04 is failed with message:
<snipped>
Step 11/11 : RUN --mount=type=ssh virtualenv --python python3.8 venv && . venv/bin/activate && poetry install -v && mkdir -p bin && ln -s ../venv/bin/ota
va ${OTAVA_HOME}/bin
the --mount option requires BuildKit. Refer to https://docs.docker.com/go/buildkit/ to learn how to build images with BuildKit enabled
Workaround - install docker-buildx using command sudo apt install -y docker-buildx.
With the workaround, installation finished successfully:
[0] ~/sources/MRG/otava $ sudo docker build -t otava .
[+] Building 73.8s (12/12) FINISHED docker:default
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 1.74kB 0.0s
=> [internal] load metadata for docker.io/library/python:3.8.0-slim-buster 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 252B 0.0s
=> [stage-0 1/7] FROM docker.io/library/python:3.8.0-slim-buster 0.0s
=> [internal] load build context 0.3s
=> => transferring context: 22.86MB 0.3s
=> [stage-0 2/7] WORKDIR /srv/otava 0.1s
=> [stage-0 3/7] RUN groupadd --gid 8192 otava && useradd --uid 8192 --shell /bin/false --create-home --no-log-init --gid otava otava && chown otava:otava /sr 0.3s
=> [stage-0 4/7] RUN apt-get update --assume-yes && apt-get install -o 'Dpkg::Options::=--force-confnew' -y --force-yes -q git openssh-client gcc 34.6s
=> [stage-0 5/7] RUN curl -sSL https://install.python-poetry.org | python3 - --version 1.8.3 15.1s
=> [stage-0 6/7] COPY --chown=otava:otava . /srv/otava 0.2s
=> [stage-0 7/7] RUN --mount=type=ssh virtualenv --python python3.8 venv && . venv/bin/activate && poetry install -v && mkdir -p bin && ln -s .. 19.2s
=> exporting to image 2.5s
=> => exporting layers 2.5s
=> => writing image sha256:1376197235489ed68c8b813ca9166c85bc68dee194625706131659cd6e766435 0.0s
=> => naming to docker.io/library/otava 0.0s
[0] ~/sources/MRG/otava $
I propose to update installation steps 2 and make instruction more detailed.