How to add bash command completion for Docker on Mac OS X?

Question

I am running docker and I want bash command completion for docker commands and parameters.

Answer 1

The stumbling point for me was that once you brew install bash-competion, you have to add few lines in your .bash_profile to load it once you launch Terminal:

if [ -f $(brew --prefix)/etc/bash_completion ]; then
. $(brew --prefix)/etc/bash_completion
fi

Source: http://davidalger.com/development/bash-completion-on-os-x-with-brew/

Because I haven't found anywhere a step by step documentation, I've made a quick script to install homebrew, bash-completion and eventually the completion scripts for docker. https://github.com/HypnoTheNomad/docker-bash-completion-macos-brew

Answer 2

The official Docker site has a section for Command-line completion, and for Mac to:

https://docs.docker.com/compose/completion/#mac

Helped for me with Homebrew:

brew install bash-completion

After the installation, Brew displays the installation path. From documentation is correct for me:

/usr/local/etc/bash_completion.d/

Run the script:

sudo curl -L https://raw.githubusercontent.com/docker/compose/1.25.4/contrib/completion/bash/docker-compose -o /usr/local/etc/bash_completion.d/docker-compose

Open and add following in the end of your file ~/.bash_profile:

if [ -f $(brew --prefix)/etc/bash_completion ]; then
 . $(brew --prefix)/etc/bash_completion
 fi

Restart terminal. It's all.