1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
#!/usr/bin/env bash
set -euo pipefail
# Check that the script is run as root or with sudo
if [[ "$EUID" -ne 0 ]]; then
echo "This script must be run as root or with sudo."
exit 1
fi
echo "Removing old Docker packages and related..."
for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do
apt-get remove -y "$pkg"
done
echo "Updating package list and installing dependencies..."
apt-get update
apt-get install -y ca-certificates curl
echo "Creating directory for GPG keys and downloading Docker key..."
install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
-o /etc/apt/keyrings/docker.asc
chmod a+r /etc/apt/keyrings/docker.asc
echo "Adding Docker repository to apt sources..."
ARCH=$(dpkg --print-architecture)
CODENAME=$(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
cat <<EOF > /etc/apt/sources.list.d/docker.list
deb [arch=$ARCH signed-by=/etc/apt/keyrings/docker.asc] \
https://download.docker.com/linux/ubuntu \
$CODENAME stable
EOF
echo "Updating package list..."
apt-get update
echo "Installing latest versions of Docker Engine and plugins..."
apt-get install -y \
docker-ce \
docker-ce-cli \
containerd.io \
docker-buildx-plugin \
docker-compose-plugin
echo "Running hello-world test container..."
docker run --rm hello-world
echo "Done! Docker installed and verified."