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docker:basic_usage_of_docker

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docker:basic_usage_of_docker [2016/10/14 00:10] – created peterdocker:basic_usage_of_docker [2020/07/15 09:30] (current) – external edit 127.0.0.1
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 ====== Docker - Basic Usage of Docker ====== ====== Docker - Basic Usage of Docker ======
  
-Commonly used options of the docker command. E.g. how to download a docker image, build a container and how to access the container.+Commonly used options of the docker command. e.g. how to download a docker image, build a container and how to access the container.
  
 To create a new container, you should start by choosing a base image with the OS, e.g. ubuntu or centos or another. You can search for a base image with the docker search command: To create a new container, you should start by choosing a base image with the OS, e.g. ubuntu or centos or another. You can search for a base image with the docker search command:
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 </code> </code>
  
-This command will show you all ubuntu images. You can try by yourself docker search centos etc.+This command will show you all ubuntu images.  You can try by yourself docker search centos etc. 
 + 
 +----
  
 Download the base image to our server, use the command: Download the base image to our server, use the command:
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 docker pull ubuntu docker pull ubuntu
 </code> </code>
- 
  
 The docker pull imagename command will download an image to your server from docker registry/DockerHub. The docker pull imagename command will download an image to your server from docker registry/DockerHub.
 +
 +----
  
 Now you can see all downloaded images by using the command: Now you can see all downloaded images by using the command:
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 The Ubuntu image was downloaded from DockerHub/Docker Registry. The next step is to create a container from that image. The Ubuntu image was downloaded from DockerHub/Docker Registry. The next step is to create a container from that image.
 +
 +----
  
 To create the container, you can use docker create or docker run. To create the container, you can use docker create or docker run.
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 docker create ubuntu:16.04 docker create ubuntu:16.04
 </code> </code>
- 
  
 **docker create** command will create a new container but not start it. So now you can use run command: **docker create** command will create a new container but not start it. So now you can use run command:
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 </code> </code>
  
-This command will create and run a container based in ubuntu 16.04 image and run a command /bin/bash inside the container, you will be automatically inside the container after running the command.+This command will create and run a container based on an Ubuntu 16.04 image and run a command /bin/bash inside the container, you will be automatically inside the container after running the command.
  
  
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 /bin/sh -c "while true; do echo hello world; sleep 1; done" this is bash script to echo "hello word" forever. /bin/sh -c "while true; do echo hello world; sleep 1; done" this is bash script to echo "hello word" forever.
 </code> </code>
 +
 +----
  
 Now you can see the container running in the background by using command: Now you can see the container running in the background by using command:
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 docker ps docker ps
 </code> </code>
 +
 +----
  
 or if you want to see the logs result from that bash command you can use the command: or if you want to see the logs result from that bash command you can use the command:
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 </code> </code>
  
 +----
  
 How can I access the shell of container that runs in the background mode? This command will connect you to the shell of the container: How can I access the shell of container that runs in the background mode? This command will connect you to the shell of the container:
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 docker exec -i -t NAMES/ContainerID /bin/bash docker exec -i -t NAMES/ContainerID /bin/bash
 </code> </code>
- 
  
 You can see the hostname and the container ID are equal, this means that you are inside of the container shell. When you type `exit` on that shell you will leave that shell but the container is still running. You can see the hostname and the container ID are equal, this means that you are inside of the container shell. When you type `exit` on that shell you will leave that shell but the container is still running.
 +
 +----
  
 Another command that you will use often is: Another command that you will use often is:
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 docker start NAME/ContainerID docker start NAME/ContainerID
 </code> </code>
 +
 +----
  
 If you like to remove the container, stop it first and then remove it with the command: If you like to remove the container, stop it first and then remove it with the command:
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 docker rm NAME/ContainerID docker rm NAME/ContainerID
 </code> </code>
 +
 +----
  
 This is just a short introduction on the installation and basic usage of Docker on Ubuntu, you can find the detailed Docker documentation page here. This is just a short introduction on the installation and basic usage of Docker on Ubuntu, you can find the detailed Docker documentation page here.
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 An in-depth introduction to Docker is available in this Howtoforge tutorial series: https://www.howtoforge.com/tutorial/how-to-use-docker-introduction/ An in-depth introduction to Docker is available in this Howtoforge tutorial series: https://www.howtoforge.com/tutorial/how-to-use-docker-introduction/
  
 +----
  
 ===== Conclusion ===== ===== Conclusion =====
  
-Docker is an open source container virtualization platform which helps developers to deploy their applications and system administrators to manage applications in a safe virtual container environment. Docker runs on the Intel / AMD 64-bit architecture and the kernel should be higher 3.10 version. With Docker, you can build and run your application inside a container and then move your containers to other machines running docker without any worries.+Docker is an open source container virtualization platform which helps developers to deploy their applications and system administrators to manage applications in a safe virtual container environment. 
 + 
 +Docker runs on the Intel / AMD 64-bit architecture and the kernel should be higher 3.10 version. 
 + 
 +With Docker, you can build and run your application inside a container and then move your containers to other machines running docker without any worries.
  
 +----
  
 ===== References ===== ===== References =====
docker/basic_usage_of_docker.1476403814.txt.gz · Last modified: 2020/07/15 09:30 (external edit)
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