Ansible version switcher

README.md

Ansible version switcher

Script which installs variety of Ansible versions and sets them up using virtualenv.

Loading ansible

source ./ansible_version 2.7.0

Mostly based on original script by @gbolo

ansible_version.sh

#!/bin/bash

# Some default versions
ANSIBLE_VERSIONS="2.4.3 2.4.6 2.5.0 2.5.11 2.6.7 2.7.0 2.7.1"

# Setting virtualenv directory 
VIRTUALENV_DIR=${HOME}/virtualenv/ansible

# Function to install ansible versions
INSTALL_ANSIBLE_VERSIONS() {
  local version=${1}
  
  # If a version is specified then use that for installation instead of using a list of versions
  if [ "x${version}" != "x" ]; then
      ANSIBLE_VERSIONS=${version}
  fi

  if [ ! -d "${VIRTUALENV_DIR}" ]; then
    echo ">> CREATING VIRTUALENV DIR: ${VIRTUALENV_DIR}"
    mkdir -p "${VIRTUALENV_DIR}"
  fi

  for v in ${ANSIBLE_VERSIONS}; do
    if [ ! -d "${VIRTUALENV_DIR}/${v}" ]; then
      echo ">> INSTALLING ANSIBLE VERSION: ${v}"
      virtualenv "${VIRTUALENV_DIR}/${v}"
      source "${VIRTUALENV_DIR}/${v}/bin/activate"
      # Installing docker-py for docker operations on local machine
      # Installing jmespath for json_query
      # Installing mitogen for speed up 
      pip install ansible==${v} docker-py jmespath mitogen
      deactivate
    fi
  done
}

# List installed versions
SHOW_INSTALLED_VERSIONS() {
  echo ">> AVAILABLE ANSIBLE VERSIONS:"
  for v in ${ANSIBLE_VERSIONS}; do
    echo " ${v}"
  done
  echo
}

# Load specified version of ansible
LOAD_ANSIBLE_VERSION() {
  local CHOSEN_VERSION="${1}"
  if [ -d "${VIRTUALENV_DIR}/${CHOSEN_VERSION}" ]; then
    source "${VIRTUALENV_DIR}/${CHOSEN_VERSION}/bin/activate"
    # Setting environment variables to use mitogen 
    export ANSIBLE_STRATEGY_PLUGINS=`find "${VIRTUALENV_DIR}/${CHOSEN_VERSION}" -type d -name "ansible_mitogen"`
    export ANSIBLE_STRATEGY="mitogen_linear"
  else
    echo "VERSION NOT AVAILABLE"
    exit 1
  fi
}

# ------------------------------------------------------------------------------

# check for Required program(s)
req_progs=(virtualenv pip)
for p in ${req_progs[@]}; do
hash "$p" 2>&- || \
{ echo >&2 " Required program \"$p\" not installed."; exit 1; }
done

# Calling install function
INSTALL_ANSIBLE_VERSIONS ${1}

# If all good load it
if [ $# -eq 0 ]; then
  SHOW_INSTALLED_VERSIONS
  read -p "SELECT VERSION: " ANSIBLE_VERSION
  LOAD_ANSIBLE_VERSION ${ANSIBLE_VERSION}
else
  LOAD_ANSIBLE_VERSION ${1}
fi

nice!

can you add a quick check for required bins? for example:

# Required program(s)
req_progs=(virtualenv pip)
for p in ${req_progs[@]}; do
  hash "$p" 2>&- || \
  { echo >&2 " Required program \"$p\" not installed."; exit 1; }
done

nice!

can you add a quick check for required bins? for example:

# Required program(s)
req_progs=(virtualenv pip)
for p in ${req_progs[@]}; do
hash "$p" 2>&- || \
{ echo >&2 " Required program \"$p\" not installed."; exit 1; }
done

Done!!!
Thanks for suggestion 👍