这是我在Dockerfile中的内容:
RUN gpg2 --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3 RUN curl -L https://get.rvm.io | bash -s stable RUN /bin/bash -l -c "rvm requirements" RUN /bin/bash -l -c "rvm install 2.3.3"
工作得很好,但是,当我启动容器时,我看到了这个:
$docker -it --rm myimage /bin/bash /root# ruby --version ruby 1.9.3p484 (2013-11-22 revision 43786) [x86_64-linux] /root# /bin/bash -l -c "ruby --version" ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux]
显然,这不是我想要的.据我了解,问题是bash默认不运行/ etc / profile.这就是为什么Ruby不是来自RVM安装的原因.我该如何解决这个问题?
解决方法
长话短说:
docker -it –rm myimage / bin / bash命令不会将bash作为登录shell启动.
说明:
当你运行$docker -it –rm myimage / bin / bash时,它调用bash而不使用-l选项,这使得bash就像它被调用为登录shell一样,rvm初始化取决于source-ing / path / to /.rvm/scripts/rvm或/etc/profile.d/rvm.sh,初始化在.bash_profile或.bashrc或任何其他初始化脚本中.
How can I fix that?
如果你想要总是从rvm add -l选项获得ruby.
这是一个由rvm安装了ruby的Dockerfile:
FROM debian ARG DEBIAN_FRONTEND=noninteractive RUN apt-get update -q && \ apt-get install -qy curl ca-certificates gnupg2 build-essential --no-install-recommends && apt-get clean RUN gpg2 --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3 RUN curl -sSL https://get.rvm.io | bash -s RUN /bin/bash -l -c ". /etc/profile.d/rvm.sh && rvm install 2.3.3" # The entry point here is an initialization process,# it will be used as arguments for e.g. # `docker run` command ENTRYPOINT ["/bin/bash","-l","-c"]
运行容器:
➠ docker_templates : docker run -ti --rm rvm 'ruby -v' ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux] ➠ docker_templates : docker run -ti --rm rvm 'rvm -v' rvm 1.29.1 (master) by Michal Papis,Piotr Kuczynski,Wayne E. Seguin [https://rvm.io/] ➠ docker_templates : docker run -ti --rm rvm bash root@efa1bf7cec62:/# rvm -v rvm 1.29.1 (master) by Michal Papis,Wayne E. Seguin [https://rvm.io/] root@efa1bf7cec62:/# ruby -v ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux] root@efa1bf7cec62:/#