Docker Cheat Sheet for Beginners Dev Community

Docker Cheat-sheet for beginners 🐳 - DEV Community #

Excerpt #

🔧 Common Docker Commands Start Docker: systemctl start docker # Linux open -a…

🔧 Common Docker Commands #

• Start Docker:

  systemctl start docker  <span># Linux</span>
  open <span>-a</span> Docker  <span># macOS</span>

• Check Docker Version:

📦 Working with Containers #

• List Running Containers:

• List All Containers (Running + Stopped):

• Run a Container (starts and attaches):

• Run in Detached Mode:

  docker run <span>-d</span> &lt;image_name&gt;

• Run with Port Mapping:

  docker run <span>-p</span> &lt;host_port&gt;:&lt;container_port&gt; &lt;image_name&gt;

• Stop a Running Container:

  docker stop <container_id>

• Start a Stopped Container:

  docker start <container_id>

• Remove a Stopped Container:

📜 Images #

• List Docker Images:

• Pull an Image from Docker Hub:

• Build an Image from Dockerfile:

  docker build <span>-t</span> &lt;image_name&gt; <span>.</span>

• Tag an Image:

  docker tag <image_id> <new_image_name>:<tag>

• Remove an Image:

🔄 Container Management #

• View Logs of a Container:

  docker logs <container_id>

• Access a Running Container (Interactive Shell):

  docker <span>exec</span> <span>-it</span> &lt;container_id&gt; /bin/bash

• Copy Files from Container to Host:

  docker <span>cp</span> &lt;container_id&gt;:&lt;path_inside_container&gt; &lt;host_path&gt;

🏗 Docker Networks #

• List Networks:

• Create a Network:

  docker network create <network_name>

• Connect a Running Container to a Network:

  docker network connect <network_name> <container_id>

🐳 Docker Compose #

• Start Services in Detached Mode:

• Stop Services:

• Build and Start Containers:

  docker-compose up <span>--build</span>

📊 Inspecting and Monitoring #

• Inspect Container Details:

  docker inspect <container_id>

• Display Resource Usage (CPU, Memory):

🛠 Volumes #

• List Volumes:

• Create a Volume:

  docker volume create <volume_name>

• Mount a Volume (during docker run):

  docker run <span>-v</span> &lt;volume_name&gt;:&lt;path_inside_container&gt; &lt;image_name&gt;

💡 Pro Tip: Use docker system prune to remove unused containers, networks, and images.

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