install docker & docker-compose on ubuntu 16.04 or newer

bash.sh

#### install docker on ubuntu 16.04 or newer ####

 # update repository
sudo apt update

# Install packages to allow apt to use a repository over HTTPS:
sudo apt install \
    apt-transport-https \
    ca-certificates \
    curl \
    software-properties-common
    
# Add Docker’s official GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

# add docker repository ubuntu <= 16.04
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

# NOTE: for ubuntu 17.10 use this:
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu zesty stable"

# make sure you install docker from docker repo. (not ubuntu repo)
sudo apt-cache policy docker-ce

# install docker-ce
sudo apt update
sudo apt install docker-ce -y


#### (optional) Execure docker without sudo ####

sudo usermod -aG docker ${USER}
su - ${USER}
id -nG


#### Install docker-compose on ubuntu ####

# NOTE: replace version (1.22.0) with the current_release in github page: https://github.com/docker/compose/releases
sudo curl -L https://github.com/docker/compose/releases/download/1.22.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

# set permissions
sudo chmod +x /usr/local/bin/docker-compose

# check if it's working
docker-compose --version