Small hack and workaround to provide some small deploy zone build virtual environment on your local bash environment

bash_completion_vdz

# ~/.bash_completion.d/vdz
_vdz() {
	local cur
	local envs=$( cat ~/.dz/env.json | jq -r '.environments | keys[]' )
	
	cur="${COMP_WORDS[COMP_CWORD]}"
	COMPREPLY=( $(compgen -W "${envs} --deactivate" -- ${cur}) )
}

complete -F _vdz vdz

env.json

{
  "build_hosts": [
    "red.example.com",
    "meow.example.com"
  ],
  "environments": {
    "production": {
      "template_file": "~/.dz/template_prod.json",
      "publish_url": "https://production-imgapi.example.com"
    },
    "development": {
      "template_file": "~/.dz/template_test.json",
      "publish_url": "https://testing-imgapi.example.com"
    }
  }
}

vdz.sh

# Switch to different dz environments, requires bash, jq, shuf and dz
# Thomas Merkel <tm@core.io>
vdz() {
	DZ_ENV=${1}
	DZ_ENV_FILE=~/.dz/env.json
	if [[ ! -f ${DZ_ENV_FILE} ]]; then
		echo "Missing ${DZ_ENV_FILE}"
		return 1
	fi

	# Print environments
	if [[ ! -n ${DZ_ENV} ]]; then
		echo "Usage: vdz [--deactivate|environment]"
		echo
		echo "Available environments:"
		jq -r ".environments | keys[]" ${DZ_ENV_FILE} | while read env; do
			echo "  ${env}"
		done
		echo
		echo "Options:"
		echo "  --deactivate"
		return 2
	fi

	# Unset all env variables we use
	if [[ ${DZ_ENV} =~ "deactivate" ]]; then
		echo "Unset your current deploy-zone environment"
		unset DZ_BUILD_HOST DZ_BUILD_TEMPLATE DZ_BUILD_PUBLISH_URL VIRTUAL_ENV
		return 0
	fi

	# Create DZ_BUILD_HOST
	DZ_BUILD_HOST=$(jq -r ".build_hosts[]" ${DZ_ENV_FILE} | shuf -n1)

	# Get ENV information
	if [[ $(jq ".environments.${DZ_ENV}" ${DZ_ENV_FILE}) == "null" ]]; then
		echo "Missing environment \"${DZ_ENV}\", check your ${DZ_ENV_FILE}"
		return 3
	fi
	DZ_BUILD_TEMPLATE=$(jq -r ".environments.${DZ_ENV}.template_file" ${DZ_ENV_FILE})
	DZ_BUILD_PUBLISH_URL=$(jq -r ".environments.${DZ_ENV}.publish_url" ${DZ_ENV_FILE})

	# Use existing virtual environment variable
	VIRTUAL_ENV=${DZ_ENV}
	# Export the Information
	export DZ_BUILD_HOST DZ_BUILD_TEMPLATE DZ_BUILD_PUBLISH_URL VIRTUAL_ENV
	echo "Switching to deploy-zone environment: ${DZ_ENV}"
}

Setup

Copy the vdz function file to your ~/.bashrc or the location which contains your bash functions. By restarting your shell you will be provided by the new vdz command.

If you're using bash_completion which is really recommended, you could place the bash_completion_vdz content to your ~/.bash_completion file. If you are using Debian, Ubuntu, Gentoo, or any other fancy distribution you maybe have an ~/.bash_completion.d/ folder.

The environment file env.json should be stored in ~/.dz.