Menginstall Docker di Linux Ubuntu

Berikut langkah-langkah untuk melakukan instalasi Docker di sistem operasi Linux Ubuntu. Pada tulisan ini, menggunakan Linux Ubuntu versi 24.04.3 LTS (GNU/Linux 6.8.0-90-generic x86_64).

Step 1 — Update system dulu

sudo apt update
sudo apt upgrade -y

Step 2 — Install dependency

sudo apt install -y ca-certificates curl gnupg

Step 3 — Tambahkan Docker Official GPG Key

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

Step 4 — Tambahkan Docker Repository

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo $VERSION_CODENAME) stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Step 5 — Install Docker Engine

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

Step 6 — Test Docker

sudo docker run hello-world

Step 7 — Supaya tidak perlu sudo terus

sudo usermod -aG docker $USER

Tips tambahan: batasi agar log Docker tidak menghabiskan disk

sudo nano /etc/docker/daemon.json

Ubah isinya sebagai berikut:

{
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
  }
}

Lalu restart Docker:

sudo systemctl restart docker