docker:basic_usage_of_docker
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| docker:basic_usage_of_docker [2020/05/13 09:38] – peter | docker:basic_usage_of_docker [2020/07/15 09:30] (current) – external edit 127.0.0.1 | ||
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| docker pull ubuntu | docker pull ubuntu | ||
| </ | </ | ||
| - | |||
| The docker pull imagename command will download an image to your server from docker registry/ | The docker pull imagename command will download an image to your server from docker registry/ | ||
| + | |||
| + | ---- | ||
| 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/ | The Ubuntu image was downloaded from DockerHub/ | ||
| + | |||
| + | ---- | ||
| 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: | docker create ubuntu: | ||
| </ | </ | ||
| - | |||
| **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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| </ | </ | ||
| - | This command will create and run a container based in ubuntu | + | This command will create and run a container based on an Ubuntu |
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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. | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| 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 | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| 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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| </ | </ | ||
| + | ---- | ||
| 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/ | docker exec -i -t NAMES/ | ||
| </ | </ | ||
| - | |||
| 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. | ||
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| + | ---- | ||
| Another command that you will use often is: | Another command that you will use often is: | ||
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| docker start NAME/ | docker start NAME/ | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| 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/ | docker rm NAME/ | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| 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. | ||
docker/basic_usage_of_docker.1589362720.txt.gz · Last modified: 2020/07/15 09:30 (external edit)