Docker Engine and Why It Is Important – Powering the Future of Modern Development
In today’s fast-paced tech landscape, speed, efficiency, and scalability are the name of the game. Building on the Docker engine – the power behind containerization that has revolutionized the way we build, ship, and run applications.
What is Docker Engine?
At its core, Docker Engine is the beating heart of the Docker platform. It is the runtime that builds and manages containers—lightweight, portable environments that package your application and its dependencies together, ensuring consistency from development to production.
Think of Docker Engine as the magic wand that makes “build once, run anywhere” a reality.
Verify the current docker version on Ubuntu
VirtualBox:~$ docker version
Client: Docker Engine – Community
Version: 20.10.16
API version: 1.41
Go version: go1.17.10
Git commit: aa7e414
Built: Thu May 12 09:18:18 2022
OS/Arch: linux/amd64
Context: default
Experimental: trueServer: Docker Engine – Community
Engine:
Version: 20.10.16
API version: 1.41 (minimum version 1.12)
Go version: go1.17.10
Git commit: f756502
Built: Thu May 12 09:16:22 2022
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.4
GitCommit: 212e8b6fa2f44b9c21b2798135fc6fb7c53efc16
runc:
Version: 1.1.1
GitCommit: v1.1.1-0-g52de29d
docker-init:
Version: 0.19.0
GitCommit: de40ad0
Why Docker Engine Matters
1. Consistency Across Environments
Developers often face the “It works on my machine” dilemma. Docker Engine eliminates this problem by creating uniform environments across development, staging, and production. No more surprises when deploying!
2. Unmatched Portability
Docker containers can run on any system with Docker installed—be it your laptop, a server, or the cloud. This makes migrating apps between environments effortless and risk-free.
3. Lightning-Fast Deployments
Spinning up a container is a matter of seconds. With Docker Engine, teams can deploy new features or updates quickly, accelerating time-to-market and boosting customer satisfaction.
4. Resource Efficiency
Unlike virtual machines, containers share the host OS kernel, meaning they consume less memory and CPU. Docker Engine ensures that your infrastructure is optimized without sacrificing performance.
5. Scalability and Microservices
Docker Engine plays a pivotal role in microservices architecture. Need to scale your app? Just spin up more containers. Docker integrates seamlessly with orchestration tools like Kubernetes, making large-scale deployments smooth and manageable.
docker tools can be used in software development and it helps in readiness of the product based on MCU { https://dctn.in/index.php/blog/freertos_arch/ } faster in both DevOps.
Create your own Docker image to compile the #OpenWrt SDKs
- First, build a docker image using the Dockerfile
- So for this you need to clone the repository from this link – ( https://github.com/karnveer4/docker_images.git )
command isgit clone https://github.com/karnveer4/docker_images.git - Now you just have to go to the folder and execute the docker.sh script file
./docker.sh -b[ For the first time only ] - After executing this command you will see background logs on the shell showing how the image and the relevant packages are installed to create the final Docker image
below command can be used to check the docker imagedocker image ls - Now you need to clone the OpenWrt repository, here is the link, after that you can copy the docker.sh script file to local openWrt folder and spawn containers by executing below command https://github.com/openwrt/openwrt.git
cp docker.sh /path/to/local/repository
./docker.sh - Now OpenWrt can be build by using make command.