How to enter commands in docker

Docker command input method

Input directly

In the terminal of the Docker host, enter the Docker command directly, for example:

<code>docker ps
# 查看正在运行的容器</code>

Docker Compose

Use Docker Compose files to manage multiple containers. Execute in the directory where the Docker Compose file is located:

<code>docker-compose up
# 启动所有定义的容器</code>

Use Docker CLI

Run the command through Docker CLI. Use the docker prefix, for example:

<code>docker run --name my-container ubuntu:22.04</code>

Using the Docker API

Use the Docker API to interact directly with the Docker daemon. Send commands using HTTP requests, for example:

<code>curl -X POST http://localhost:2375/containers/create -d '{"Image": "ubuntu:22.04"}'</code>

Interactive commands

Execute interactive commands in the container. Use the docker exec -it command, for example:

<code>docker exec -it my-container bash</code>

Other methods

• Docker Desktop: Using Docker Desktop provides a graphical interface for entering commands.
• Kubernetes: Enter the Docker command through the kubectl command in the Kubernetes cluster.
• Third-party tools: Use third-party tools such as Portainer or Rancher to manage Docker and enter commands.

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