80d6b57697
This is a bunch of changes that I had staged, + a few typo fixes after going through the deck to check its readiness. There are no deep changes; just a few extra slides (e.g. about Kata containers and gVisor, and about services meshes) and typo fixes.
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The container ecosystem
In this chapter, we will talk about a few actors of the container ecosystem.
We have (arbitrarily) decided to focus on two groups:
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the Docker ecosystem,
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the Cloud Native Computing Foundation (CNCF) and its projects.
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The Docker ecosystem
Moby vs. Docker
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Docker Inc. (the company) started Docker (the open source project).
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At some point, it became necessary to differentiate between:
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the open source project (code base, contributors...),
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the product that we use to run containers (the engine),
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the platform that we use to manage containerized applications,
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the brand.
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Exercise in brand management
Questions:
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- What is the brand of the car on the previous slide?
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- What kind of engine does it have?
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- Would you say that it's a safe or unsafe car?
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- Harder question: can you drive from the US West to East coasts with it?
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The answers to these questions are part of the Tesla brand.
What if ...
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The blueprints for Tesla cars were available for free.
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You could legally build your own Tesla.
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You were allowed to customize it entirely.
(Put a combustion engine, drive it with a game pad ...)
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You could even sell the customized versions.
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- ... And call your customized version "Tesla".
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Would we give the same answers to the questions on the previous slide?
From Docker to Moby
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Docker Inc. decided to split the brand.
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Moby is the open source project.
(= Components and libraries that you can use, reuse, customize, sell ...)
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Docker is the product.
(= Software that you can use, buy support contracts ...)
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Docker is made with Moby.
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When Docker Inc. improves the Docker products, it improves Moby.
(And vice versa.)
Other examples
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Read the Docs is an open source project to generate and host documentation.
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You can host it yourself (on your own servers).
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You can also get hosted on readthedocs.org.
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The maintainers of the open source project often receive support requests from users of the hosted product ...
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... And the maintainers of the hosted product often receive support requests from users of self-hosted instances.
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Another example:
WordPress.com is a blogging platform that is owned and hosted online by Automattic. It is run on WordPress, an open source piece of software used by bloggers. (Wikipedia)
Docker CE vs Docker EE
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Docker CE = Community Edition.
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Available on most Linux distros, Mac, Windows.
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Optimized for developers and ease of use.
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Docker EE = Enterprise Edition.
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Available only on a subset of Linux distros + Windows servers.
(Only available when there is a strong partnership to offer enterprise-class support.)
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Optimized for production use.
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Comes with additional components: security scanning, RBAC ...
The CNCF
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Non-profit, part of the Linux Foundation; founded in December 2015.
The Cloud Native Computing Foundation builds sustainable ecosystems and fosters a community around a constellation of high-quality projects that orchestrate containers as part of a microservices architecture.
CNCF is an open source software foundation dedicated to making cloud-native computing universal and sustainable.
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Home of Kubernetes (and many other projects now).
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Funded by corporate memberships.
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