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Why it’s actually not a VM
Containers don’t come with the weight of a full OS image and a hypervisor.
Containers include only OS processes and dependencies necessary to execute the code inside them.
Containers occupy less space(MBs not GBs) which means you can run multiple copies of the same application on the same hardware.
Containers are faster and easier to deploy, provision and restart. This make them ideal for CI/CD pipelines and a better fit for Agile development teams.
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Docker tools
DockerFile - every container has one and states the instructions for building the container’s image. It consists in command-line instructions;
Docker images - contains executable source code, libs and dependencies the code needs; Read-only ...
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Docker deployment
On the same host:
- Docker Compose - creates a .yaml which specifies the used containers; can deploy and run containers from a single command; can define persistent volumes for storage, databases and service dependencies;
On different hosts:
Yo...
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What ACTUALLY is Docker
Docker enhances the native Linux containerization technologies which enables:
- seamless portability: can run natively across any desktop, data center or cloud development
- granular updates: only one process runs in a container. An application can...
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What Is Docker?
Docker is an open source containerization toolkit which enables developers to package applications into containers.
As the name suggests, Docker is like a container ship which provides means to sort, link, manage and ship containers from a d...
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What is a Container
Think like a Virtual Machine but:
- light weight
- great resource efficiency
- improved developer productivity
Where containers differ from VMs is the fact that they take advantage of the Linux kernel which comes with pro...
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Docker is a very powerful tool for development and code deployment. This is what you’re missing to take it to the next level!
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