带有Go的Docker代理

Question

I'm trying to create a Jenkins Docker agent that has Go. The following is my Dockerfile.

After I build it, if I try: docker run myimage:0.0.1 go version returns the Go version, however if I try this, it doesn't find Go at all.

docker run --privileged --dns 9.0.128.50 --dns 9.0.130.50 -d -P --name slave myimage:0.0.1
docker ps ## grab the port number
ssh -p PORT_NUMBER jenkins@localhost

What am I missing in order to make Go available under the Jenkins user?

FROM golang:1.11.5-alpine

RUN apk add --no-cache \
bash \
curl \
wget \
git \
openssh \
tar

COPY ssh/*key /etc/ssh/
COPY skel/ /home/jenkins
COPY id_rsa /home/jenkins/.ssh/id_rsa
COPY id_rsa.pub /home/jenkins/.ssh/id_rsa.pub

RUN addgroup docker \
    && adduser -s /bin/bash -h /home/jenkins -G docker -D jenkins \
    && echo "jenkins ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers \
    && echo "jenkins:jenkinspass" | chpasswd \
    && chmod u+s /bin/ping \
    && chown -R jenkins:docker /home/jenkins \
    && mv /etc/profile.d/color_prompt /etc/profile.d/color_prompt.sh \
    && mv /bin/sh /bin/sh.bak \
    && ln -s /bin/bash /bin/sh

# Standard SSH port
EXPOSE 22

CMD ["/usr/sbin/sshd", "-D"]

Answer 1

If you run:

docker run myimage:0.0.1 which go

You will see that go executable in path /usr/local/go/bin/go

If you connect as jenkins user via ssh and run /usr/local/go/bin/go version all work as well.

Conclusion:

1. Go installation provided as root user
2. jenkins user added after go installed and haven't /usr/local/go/bin/go in his $PATH environment variable.

Solution:

1. Add /usr/local/go/bin/go to $PATH for user jenkins
2. Use go executable with full path.