Docker is an open-source platform, and it is used to containerize the application. It packages the application along with the dependencies into the containers, which is easier to deploy.<\/p>\n
Docker CLI is a command-line interface for Docker that helps to build images and start and stop the containers from the command line.<\/p>\n
a. Open the terminal or PowerShell.<\/p>\n
b. Run the command \u2018docker \u2013help\u2019 to get help on Docker CLI commands.<\/p>\n
\nFig 1: Docker Help<\/p>\n
c. Run the command \u2018docker network \u2013help\u2019 to get the command-specific help.<\/p>\n
\nFig 2: Docker command help<\/p>\n
d. Run the command \u2018docker network create \u2013help\u2019 to know the options for the specific command method.<\/p>\n
\nFig 3: Docker command method options help<\/p>\n
a. Run the command \u2018docker container create imagename\u2019 to create a docker container from the \u2018Hello world\u2019 image.<\/p>\n
b. Example: docker container create hello-world:latest<\/p>\n
c. It will check for the hello-world image locally and start the container if it is found; otherwise, it downloads from the Docker Hub.<\/p>\n
\nFig 4: Create Docker Container from ‘Hello world’ image<\/p>\n
a. Run the command \u2018docker ps\u2019 to list the active containers. The following images don\u2019t show our container because it will list only the active containers.<\/p>\n
\nFig 5: Docker ps<\/p>\n
b. Run the command \u2018docker ps \u2013list\u2019 to list all the containers, both active and inactive.<\/p>\n
\nFig 6: Docker ps all<\/p>\n
a. Run the command \u2018docker start container \u2018 to start the containers.<\/p>\n
Example: Run the command \u2018docker start container 25c8937cabb1\u2019 to start our container.<\/p>\n
\nFig 7: Docker container start by container id<\/p>\n
b. Run the command \u2018docker ps -all\u2019 to list all the containers again.<\/p>\n
\nFig 8: Docker container start and exit<\/p>\n
c. You can see the container status, which created and exited about a minute ago message in the screenshot.<\/p>\n
a. Run the command \u2018docker logs \u2018 to view the logs of the container.<\/p>\n
b. Example: Run the command \u2018docker logs 25c8937cabb1\u2019 to view our container logs.<\/p>\n
\nFig 9: Docker container logs<\/p>\n
c. You can also attach the logs while starting the container.<\/p>\n
d. Run the command \u2018docker container start \u2013attach containerid\u2019 to attach the logs while starting the container.<\/p>\n
e. Example: Run the command \u2018docker container start \u2013attach 25c8937cabb1\u2019 to attach the logs while starting our container.<\/p>\n
\nFig 10: Docker container attach logs<\/p>\n
f. We can start the same container multiple times because the containers won\u2019t be deleted and can be started anytime.<\/p>\n
a. Run the command \u2018docker run ImageName\u2019 to create a container from the given image.<\/p>\n
b. Example: Run the command \u2018docker run hello-world:latest\u2019 to create a container and run the image for the \u2018Hello world\u2019 latest image.<\/p>\n
\nFig 11: Docker run<\/p>\n
a. Basically, the following actions will happen with docker run:
\ndocker run = docker container create + start + attach<\/p>\n
b. Run the command \u2018docker ps \u2013all\u2019 to list all the docker containers to view the newly created container.<\/p>\n
\nFig 12: Docker ps all<\/p>\n
c. Run the command \u2018docker logs \u2018 to view the Docker container logs.<\/p>\n
d. Run the command \u2018docker logs 3380c26f2f2f\u2019 to view the newly created Docker container logs.<\/p>\n
\nFig 13: Docker logs by container id<\/p>","protected":false},"excerpt":{"rendered":"
1. What is Docker CLI? Docker is an open-source platform, and it is used to containerize the application. It packages the application along with the dependencies into the containers, which is easier to deploy. Docker CLI is a command-line interface for Docker that helps to build images and start and … <\/p>\n