# Installs Docker engine inside of Jenkins
# Based on https://tutorials.releaseworksacademy.com/learn/the-simple-way-to-run-docker-in-docker-for-ci

# Update
apt update

# Install needed packages
apt -y install apt-transport-https \
     ca-certificates \
     curl \
     gnupg2 \
     software-properties-common

# Download key for Docker repository
curl -fsSL https://download.docker.com/linux/$(. /etc/os-release; echo "$ID")/gpg > /tmp/dkey; apt-key add /tmp/dkey && \

# Add the docker repostory
add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/$(. /etc/os-release; echo "$ID") \
   $(lsb_release -cs) \
   stable"

# Update the docker repository
apt update

# Install docker
apt -y install docker-ce