Install Docker and display Hello, World. The OS uses Mac.
Create a free account on Docker Hub (https://hub.docker.com/signup) to install Docker. After creating an account, download Docker for Mac from the link below and then install it.
After installation-If the version is displayed with --version, the installation is successful.
$ docker --version
Use the “Hello, World” image. This is a useful image for Docker test run. Running docker run hello-word in the terminal will download the official docker image into the container and run the image.
$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:9572f7cdcc2963463447a53466950bc15a2d1917ca215a2f
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
You can check Docker information with the docker info command.
$ docker info
...
Server:
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 1
...
You can now confirm that Docker is installed and started successfully.