docker

for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

make docker run without sudo:

# normally, this group will already exist after docker installation
sudo groupadd docker
# add user to this group, eg: sudo gpasswd -a PPG007 docker
sudo gpasswd -a $USER docker
sudo systemctl restart docker
newgrp docker

change repository:

vim /etc/docker/daemon.json

add this to daemon.json:

{
  "proxies": {
    "http-proxy": "http://127.0.0.1:8889",
    "https-proxy": "http://127.0.0.1:8889",
    "no-proxy": "*.test.example.com,.example.org,127.0.0.0/8"
  }
}

docker-compose。

To install docker-compose, download from github release and move it to /usr/bin and rename it to docker-compose, then run chmod +x /use/bin/docker-compose。