Introduction to docker-compose ps - Shell-Bash command

The docker-compose ps command is used to display the current status of services defined in a Docker Compose file. When executed with -Shell-Bash argument, it will run the command in a Bash shell, allowing you to interact with the Docker Compose environment.

Command Syntax

The basic syntax for using docker-compose ps with -Shell-Bash is as follows:

docker-compose ps -Shell-Bash

Usage

Executing docker-compose ps -Shell-Bash provides a shell environment within the context of the Docker Compose project. It allows you to run various commands and interact with the services defined in the Compose file.

For example, you can use this command to:

1. Check the running status and health of services defined in the Docker Compose file.
2. Perform debugging tasks by inspecting the containers' logs, network connections, and environment variables.
3. Execute ad-hoc commands within the services' environment for testing or troubleshooting purposes.

Output

The docker-compose ps -Shell-Bash command produces a tabular output in Markdown format. The resulting table provides information about each service, such as service name, container ID, image, the ports exposed, and current status.

Here is an example of the Markdown-formatted output:

| Name        | Command       | State       | Ports            |
|-------------|---------------|-------------|------------------|
| service1    | start.sh      | running     | 8080->80/tcp    |
| service2    | run.sh        | exited      |                  |

Each row represents a service, and the columns provide details as follows:

• Name: The name of the service defined in the Docker Compose file.
• Command: The command used to start the service within the container.
• State: The current state of the service (e.g., running, exited).
• Ports: The ports exposed by the service in the format of <host-port>-><container-port>/<protocol>.

Conclusion

The docker-compose ps -Shell-Bash command in Docker Compose is a useful tool for obtaining information about the running services and their containers. It allows easy interaction and debugging within the Docker Compose environment. The output is presented in a Markdown table format, making it suitable for documentation purposes or sharing with fellow developers.