Add a Dockerfile to make drone run inside a container

[crosbymichael]

This is just the beginning to get drone running inside a container and talking to a local or remote docker.

[bradrydzewski]

awesome! some minor suggestions

we should add libsqlite3-dev and sqlite3

RUN apt-get install -y wget gcc make g++ build-essential ca-certificates mercurial git bzr libsqlite3-dev sqlite3

let's use make and make install. this will embed all static assets in the drone binary and serve from memory. make install will add the binaries to /usr/local/bin:

RUN make
RUN make install

make run will create the drone database in /tmp. let's instead invoke drone directly and specify a more permanent database path:

EXPOSE 80
CMD /usr/local/bin/droned --port=":80" --datasource="/var/lib/drone/drone.sqlite"

you mentioned this was just the beginning, so I didn't know if you wanted to make the changes, or you wanted me to merge this PR and I can make them myself. Either way, thanks!

[crosbymichael]

Thanks i'll make the changes

[whitlockjc]

By the way, if it means anything, I've taken your PR and merged in these changes requested from @bradrydzewski and I get the following:

cd cmd/droned   && rice embed
/bin/sh: 1: rice: not found
*** [embed] Error 127

It seems that we're not installing everything we need or I've just done something wrong somehow. If I find out what is up before you do, I'll post it here.

[whitlockjc]

sigh...found it, somehow blew away the "make deps".

[crosbymichael]

@whitlockjc Feel free to take over and open a new PR with the changes if I don't get to it in time. Not going to hurt my feelings ;)

[whitlockjc]

I can be patient, no rush on my end. I have been playing with it and I have it working but I did run into an interesting constraint. Using boot2docker (OS X), I run into memory issues when building go due to the tests. It seems to be a known issue. Since it's known to be a problem and we're treating Go as an external dependency, maybe using ./make.bash instead of ./all.bash would make sense. Thoughts?

[crosbymichael]

Yes, change it to make.bash but you should give b2d more memory.

[bradrydzewski]

you could also download the pre-compiled Go binaries:

RUN wget http:https://go.googlecode.com/files/go1.2.linux-amd64.tar.gz --quiet && \ 
    tar -C /usr/local -xzf go1.2.linux-amd64.tar.gz && \
    rm go1.2.linux-amd64.tar.gz

and add these env variables

ENV GOROOT /usr/local/go
ENV GOPATH /gocode
ENV PATH $PATH:$GOROOT/bin:$GOPATH/bin

[whitlockjc]

Would you rather binaries or source build? I have it working now, although I did run into some OS X specific stuff with VirtualBox and port forwarding port 80.

[crosbymichael]

@whitlockjc I think the binaries would be fine

[whitlockjc]

Here is my current version:

FROM ubuntu:13.10

RUN apt-get update
RUN apt-get install -y wget gcc make g++ build-essential ca-certificates mercurial git bzr libsqlite3-dev sqlite3

RUN wget https://go.googlecode.com/files/go1.2.src.tar.gz && tar zxvf go1.2.src.tar.gz && cd go/src && ./make.bash 

ENV PATH $PATH:/go/bin:/gocode/bin
ENV GOPATH /gocode

RUN mkdir -p /gocode/src/github.com/drone

ADD . /gocode/src/github.com/drone/drone

WORKDIR /gocode/src/github.com/drone/drone

RUN make deps
RUN make
RUN make install

EXPOSE 80

CMD ["/usr/local/bin/droned", "--port=:80", "--path=/var/lib/drone/drone.sqlite"]

This works and it includes the changes mentioned above, although it still builds go 1.2 from source instead of using a binary. On OS X, you have to use port forwarding when you run the container to work around the inability of VirtualBox.app to forward ports less than 1024 like this docker run -p 8080:80 whitlockjc/drone. Since @crosbymichael did the heavy lifting, I will not create a new pull request.

[crosbymichael]

@whitlockjc I would add /usr/local/bin/droned as the ENTRYPOINT and then the default args as the CMD

[whitlockjc]

Done. A quick question: Why would Docker fail to run drone when drone is listening on port 80 but it runs fine with the default port 8080? When I say "fail to run", when I run the container configured to connect on port 80 and port forward 80->8080 on the host, I get no data back. If I run the same container but tell drone to listen on port 8080 instead of 80 and then port forward 8080->8080 on the host, I get the page back. I'm on OS X so this could be a boot2docker on OS X ism.

Here is the current iteration:

FROM ubuntu:13.10

RUN apt-get update
RUN apt-get install -y wget gcc make g++ build-essential ca-certificates mercurial git bzr libsqlite3-dev sqlite3

RUN wget https://go.googlecode.com/files/go1.2.src.tar.gz && tar zxvf go1.2.src.tar.gz && cd go/src && ./make.bash 

ENV PATH $PATH:/go/bin:/gocode/bin
ENV GOPATH /gocode

RUN mkdir -p /gocode/src/github.com/drone

ADD . /gocode/src/github.com/drone/drone

WORKDIR /gocode/src/github.com/drone/drone

RUN make deps
RUN make
RUN make install

EXPOSE 80

ENTRYPOINT ["/usr/local/bin/droned"]

CMD ["--port=:80", "--path=/var/lib/drone/drone.sqlite"]

[crosbymichael]

Closing so @whitlockjc can take this over, sorry i don't have time right now