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Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications. Consisting of Docker Engine, a portable, lightweight runtime and packaging tool, and Docker Hub, a cloud service for sharing applications and automating workflows, Docker enables apps to be quickly assembled from components and eliminates the friction between development, QA, and production environments. As a result, IT can ship faster and run the same app, unchanged, on laptops, data center VMs, and any cloud.
Why do developers like it?
With Docker, developers can build any app in any language using any toolchain. “Dockerized” apps are completely portable and can run anywhere - colleagues’ OS X and Windows laptops, QA servers running Ubuntu in the cloud, and production data center VMs running Red Hat.
Developers can get going quickly by starting with one of the 13,000+ apps available on Docker Hub. Docker manages and tracks changes and dependencies, making it easier for sysadmins to understand how the apps that developers build work. And with Docker Hub, developers can automate their build pipeline and share artifacts with collaborators through public or private repositories.
Docker helps developers build and ship higher-quality applications, faster.
Why do sysadmins like it?
Sysadmins use Docker to provide standardized environments for their development, QA, and production teams, reducing “works on my machine” finger-pointing. By “Dockerizing” the app platform and its dependencies, sysadmins abstract away differences in OS distributions and underlying infrastructure.
In addition, standardizing on the Docker Engine as the unit of deployment gives sysadmins flexibility in where workloads run. Whether on-premise bare metal or data center VMs or public clouds, workload deployment is less constrained by infrastructure technology and is instead driven by business priorities and policies. Furthermore, the Docker Engine’s lightweight runtime enables rapid scale-up and scale-down in response to changes in demand.
Docker helps sysadmins deploy and run any app on any infrastructure, quickly and reliably.
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|Section 1: Introduction|
Introduction to coursePreview
|Section 2: Introduction to Virtualization|
What is virtualizationPreview
|Section 3: Installation|
|Section 4: Architecture|
|Section 5: Working with docker client|
Finding the version of docker
Creating a container
Running a container
getting a list of all containers
Inspecting a container
Attaching and detaching a container process
Sending SIGKILL and SIGTERM signals to the detached process
Restarting a container
Using container in interactive mode
Commiting filesystem changes
Quit a container
Connecting to a remote docker server
|Section 6: Docker Hub|
What is Docker Hub
Pushing a container into docker hub
Pulling a container into docker hub
Searching For Container
|Section 7: Getting Practical with Docker by using WordPress|
Introduction to Docker for WordPress Developers
How to Manually Build Docker Containers for WordPress
How to Use the Official Docker WordPress Image
Deploying WordPress with Docker
|Section 8: Conclusion|
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