Docker

Commands

Images:

• List images: docker images
• Delete image: docker rmi <image_name>
• Delete all images: docker rmi $(docker images -q)

Containers:

• List containers: docker ps -a
• Delete container: docker rm <container_name>
• Delete all containers: docker rm $(docker ps -a -q)
• Kill process containers: docker kill <container_name>
• Stop container: docker stop <container_name>
• Enter to container: docker exec -ti <container_name> bash
• See container configuration: docker inspect <container_name>
• See container logs: Docker logs -f <container_name>

Dockerizer into image, one Web App

1. Create the web app

2. Create the Dockerfile

3. Create the .dockerignore

4. Enter to machine with docker

   #simple entering
   $ ssh <user@ip_host> -p <port>
   # entering to machine with port-forwarding for expose an port:
   $ ssh <user@ip_host> -p <port> -L <portExpose:ip_host:portExpose>

5. Copy the web app into machine with docker

6. create docker build with

   $ docker build . -t <user/image_name:tag>

7. Execute the image and create container

   $ docker run -d --name <container_name> -p <portExpose:portApp> <image_name>

8. open the app in your browser with: http://<ip_host:portExpose>

Publish Image in DockerHub

1. Enter to machine with Docker

   #simple entering
   $ ssh <user@ip_host> -p <port>
   # entering to machine with port-forwarding for expose an port:
   $ ssh <user@ip_host> -p <port> -L <portExpose:ip_host:portExpose>

2. Login in dockerhub

   $ docker login

3. Prepare image

   $ docker tag <image_name> <dockerhub_user/image_name:tag>

4. Publish image in Docker Hub

   $ docker push <dockerhub_user/image_name:tag>

To verificate the image publish in Docker Hub

go to Docker Hub => https://hub.docker.com/

Download Image from DockerHub

1. Enter to machine with Docker

   #simple entering
   $ ssh <user@ip_host> -p <port>
   # entering to machine with port-forwarding for expose an port:
   $ ssh <user@ip_host> -p <port> -L <portExpose:ip_host:portExpose>

2. Download Image

   $ docker pull <dockerhub_user/image_name:tag>