Day 16 - Task: Navigating the Seas of Docker for DevOps Engineers 🐳🚀 (Dec 12, 2023)
As you have already installed docker in previous days tasks, now is the time to run Docker commands.
docker runcommand to start a new container and interact with it through the command line. [Hint: docker run hello-world]
docker inspectcommand to view detailed information about a container or image.
docker portcommand to list the port mappings for a container.
docker statscommand to view resource usage statistics for one or more containers.
docker topcommand to view the processes running inside a container.
docker savecommand to save an image to a tar archive.
docker loadcommand to load an image from a tar archive.
Docker: A Brief Overview
Docker is more than just a buzzword; it's a revolutionary platform that simplifies the deployment, testing, and scaling of applications. How? By packaging software into standardized units called containers. These containers encapsulate everything needed to run an application, from libraries to system tools and code.
With Docker, you can ensure that your application runs consistently across different environments. It provides a level of abstraction that enables you to focus on building and shipping your software rather than dealing with environment-specific issues.
Tasks to Set Sail: Docker Commands Exploration ⚓
1. Docker Run Command: Setting Sail on Containers
# Start a new container and interact with it through the command line
docker run hello-world
2. Docker Inspect Command: Delving into Container Details
# View detailed information about a container or image
docker inspect <container_id or image_name>
3. Docker Port Command: Navigating the Port Map
# List the port mappings for a container
docker port <container_id>
4. Docker Stats Command: Monitoring Resource Usage
# View resource usage statistics for one or more containers
docker stats <container_id>
5. Docker Top Command: Peeking into Container Processes
# View the processes running inside a container
docker top <container_id>
6. Docker Save and Load Commands: Archiving and Retrieving Images
# Save an image to a tar archive
docker save -o image.tar <image_name>
# Load an image from a tar archive
docker load -i image.tar