Install Container Engine

For Ubuntu 20.04.1 LTS with Docker

Set up OS

• configure virtual memory

echo "vm.max_map_count = 262144"|sudo tee -a /etc/sysctl.conf
sudo sysctl vm.max_map_count=262144

ref. https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html

Install Docker Engine

1. Install docker engine.

See https://docs.docker.com/install/linux/docker-ce/ubuntu/

sudo apt-get update
sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
sudo usermod -aG docker your-user

sudo systemctl start docker
sudo systemctl enable docker

exec $SHELL -l

2. Test the installed docker engine.

docker --version

result:

$ docker --version
Docker version 20.10.6, build 370c289

Install Docker-Compose

1. Install docker-compose command.

See https://docs.docker.com/compose/install/.

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

2. Test the installed command.

docker-compose --version

$ docker-compose --version
docker-compose version 1.29.2, build 5becea4c