In the past few days, I tried to dockerize my development environment and put my daily programming tools inside container. I tried to install zplug inside docker container and met some issues. In this post, I want to share how to install zplug and other plugins inside the Docker container.
Following the recommended way in the zplug git repo, I use the instruction below to install zplug:
RUN curl -sL --proto-redir -all,https https://raw.githubusercontent.com/zplug/installer/master/installer.zsh | zsh
Unfortunately, the build fails and gives the following error message:
The command ‘/bin/sh -c curl -sL –proto-redir -all,https https://raw.githubusercontent.com/zplug/installer/master/installer.zsh | zsh’ returned a non-zero code: 1
After some searching, I find that this issue is caused by the Unicode characters that zplug uses in its message. In order to deal with this, we need to set up a locale in UTF-8 format (see here for details):
RUN apt-get install -y locales && locale-gen en_US.UTF-8
ENV LC_ALL en_US.UTF-8
Another issue is that I get an error when I use the following instruction to install plugins:
RUN zplug install
The error message is that:
zplug: command not found
The command zplug install works in a normal terminal, but fails to work when
we are building a docker image. I change the instruction to
RUN ["zsh", "-ic", "zplug install"]
based on discussions here and I can run the command without errors.
Unfortunately, another error occurs when zplug tries to install plugins. The errors look like this:
✘ Unknown error lukechilds/zsh-nvm
✘ Unknown error zsh-users/zsh-completions
✘ Unknown error junegunn/fzf-bin
According to discussions here, it
is caused by the missing package gawk. We need to install the gawk package
before running the zplug install command:
RUN apt-get install gawk
RUN ["zsh", "-ic", "zplug install"]
After solving all these issues, I can install zplug and other plugins successfully inside the docker container.