Speed Up Docker Pulls and Master Container Management with Simple Commands

2. Pull an Image

Example: pull the latest Nginx image.

<code>docker pull nginx</code>

3. First Run of the Image

Run the container in detached mode and map host port 8090 to container port 80:

<code>docker run -d -p 8090:80 --name nginx-container nginx:latest</code>

Sample output shows the container ID and confirms it is running.

4. Inspect Command

docker inspect

provides detailed information about containers, images, networks, volumes, etc.

<code>docker inspect nginx-container</code>

5. Start an Existing Container

<code>docker start &lt;container_id_or_name&gt;
# or restart
docker restart &lt;container_id_or_name&gt;</code>

6. List Containers

<code>docker ps          # running containers
docker ps -a       # all containers</code>

7. Stop a Container

<code>docker stop &lt;container_id_or_name&gt;</code>

8. Enter a Container

<code>docker exec -it &lt;container_id_or_name&gt; /bin/bash</code>

Exiting the shell does not stop the container.

9. View Container Processes

<code>docker top &lt;container_name&gt;</code>

10. Delete a Container

<code>docker stop &lt;container_id_or_name&gt;
docker rm &lt;container_id_or_name&gt;
# Remove all stopped containers
docker rm $(docker ps -aq)</code>

11. List Images

<code>docker images</code>

12. Start All Containers

<code>docker start $(docker ps -a -q)</code>

13. Modify Files Inside a Container

Method 1: Use

docker exec

with an editor (e.g.,

vi

).

<code>docker exec -it &lt;container_id_or_name&gt; bash
# then edit files inside the container</code>

Method 2: Copy files out, edit on the host, and copy back.

<code>docker cp &lt;container_id_or_name&gt;:/path/to/file /host/path
# edit the file on the host
docker cp /host/path/file &lt;container_id_or_name&gt;:/path/to/file</code>

14. Create a Container with a Specific IP

Docker’s default bridge network assigns IPs automatically. For fixed IPs, create a custom bridge network and run the container on it.

<code>docker network create --driver bridge --subnet 172.19.0.0/16 --gateway 172.19.0.1 mynet</code>

15. View Network Modes

<code>docker network ls</code>

16. Create a New Bridge Network

<code>docker network create --driver bridge --subnet 172.19.0.0/16 --gateway 172.19.0.1 dockercompose</code>

17. Inspect Network Details

<code>docker network inspect dockercompose</code>

18. Run a Container on the Custom Network with a Fixed IP

<code>docker run -it --name nginx-second --network=dockercompose --ip 172.19.0.6 nginx</code>

Verify the IP with:

<code>docker inspect &lt;container_id&gt; | grep "IPAddress"</code>

19. View Volume Information

<code>docker inspect -f {{.Volumes}} &lt;container_name&gt;</code>

These commands cover common Docker operations for image acceleration, container lifecycle management, networking, and file handling.