Docker Client for Buildmaster

[rpangrazio_2287]

So I am sure this is pretty easy, but I am new to Proget, Buildmaster and Otter. I have a Proget/Buildmaster server setup by using the official docker images. I am trying to build a docker container that the source is hosted in a AzureDev Ops Git repo. My Buildmaster server will clone the repo fine. When it tries to build it says

Using LocalAgent agent on localhost
A Docker client was not detected on this server.

Here is my build script

# Get Source
# Fetch code changes from your source control system in order to build and run tests against them.
{
    Git::Checkout-Code();
}

# Compile Project
# Run a familiar build tool such as MSBuild, Maven, make, etc., pull packages & libraries, lint your code, and/or set version numbers.
{
    Docker::Build-Image();
}

# Run Tests
# Execute unit tests, static analysis tools, or capture reports.
{
}

# Capture Artifact
# Create a build artifact from the build output once all tests pass.
{
    Docker::Tag
    (
        NewTag: latest
    );
}

How do I set up the docker client in the server? Pointing me to the right spot in the documentation would be appreciated, because I can't seem to find where it is.

[rpangrazio_2287]

So I fixed it by building a docker image based on the inedo image. Here is my docker file. So far seems to be working well. I then mount a docker socket into the container and then I can set the config variable to the docker executable, /usr/bin/docker.

FROM debian:bookworm AS build


RUN apt-get update
RUN apt-get install -y ca-certificates curl
RUN install -m 0755 -d /etc/apt/keyrings
RUN curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
RUN chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
RUN echo \
 "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  tee /etc/apt/sources.list.d/docker.list > /dev/null
RUN apt-get update && mkdir /pkgs && apt-get install -y -d -o=dir::cache=/pkgs docker-ce-cli

FROM proget.inedo.com/productimages/inedo/buildmaster:24

COPY --from=build /pkgs/* /tmp
RUN dpkg -i /tmp/*.deb

[atripp]

Hi @rpangrazio_2287 ,

Thanks for sharing that solution; the general approach we arrived at was setting up an SSL Agent to connect to the BuildMaster's Docker host (Installing & Integrating with Docker Engine).

The approach you took is interesting; are you essentially installing Docker within the container? I assume that uses the Docker engine of the host, not like "docker in docker"?

Thanks,
Alana

[rpangrazio_2287]

It just installs the command line client, but yeah I am currently using the hosts docker server. I am investing other more secure options. I’ve seen docked in docker setups and may go that route and setup a build worker.

[atripp]

Thanks for clarifying that @rpangrazio_2287 , we'll explore that route as well.

We opted against DinD because of resource management (build servers can be rather resource-intensive) and general instability (not everything seems to work the same).

FYI - in case you haven't seen it already, BuildMaster does support Image-based Services (Containerized Builds)

Cheers,
Alana

[rpangrazio_2287]

I am also against DinD because the way I saw it done involved installing a specialized runtime and I'm not particularly crazy about doing that. I'd like to find a more portable way of doing it.

I admit I am new to Proget/BuildMaster/Otter and really like it so far. So I am sure that I will engineer some solutions that are, to be frank, Rube Goldburg-esque.