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Docker and Docker-compose

# Add Docker's official GPG key:
sudo apt update; \
sudo apt install -y ca-certificates curl gnupg; \
sudo install -m 0755 -d /etc/apt/keyrings; \
curl -fsSL | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg; \
sudo chmod a+r /etc/apt/keyrings/docker.gpg; \

# Add the repository to Apt sources:
echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
sudo apt install -y docker-ce docker-ce-cli docker-buildx-plugin docker-compose-plugin

If Failure like this:

failed to register layer: lsetxattr user.overlay.impure /etc: operation not supported

Do on vhost:

vim /etc/pve/lxc/xxx.conf

and add:

unprivileged: 0 # only change value
lxc.apparmor.profile: unconfined
lxc.cgroup.devices.allow: a