Docker Installation

Ubuntu

Using apt-get

This approach will also install docker-compose.

Remove old installations

sudo apt-get remove docker docker-engine docker.io containerd runc

Setup repo

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 apt-key fingerprint 0EBFCD88

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

Install docker engine

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io

Verify Docker install

sudo docker run hello-world

Run docker as non-root

sudo groupadd docker

sudo usermod -aG docker $USER

Now logout and login again to use docker.

Configure docker to run on system startup:-

sudo systemctl enable docker

Using snap package (snap should be pre-installed). This will install docker and start daemon

sudo snap install docker

Verify docker process

# Verify docker process
ps -ef|grep docker

# Check docker version
docker --version

We need to install docker-compose separately here. Please follow this link for docker-compose.