Explain nuances of the term "container"

[azarboon]

Description

Marc Brooker has written a blog post explaining that "container" means different thing to different people, and that it should be checked whether audience and narrator use the same definition. Below are his four suggested definition. Given the authority of Kubernetes, I suggest this nuance to be mentioned. So readers are more informed and take cautionary acts to ensure they are synced with their audience. I've added it.

• An approach to packaging an application along with its dependencies (sometimes a whole operating system user space), that can then run on a minimal runtime environment with a clear contract.
• A set of development, deployment, architectural, and operational approaches built around applications packaged this way.
• A set of operational, security, and performance isolation tools that allow multiple applications to share an operating system without interfering with each other. On Linux, this tools include chroot, cgroups, namespaces, seccomp, and others.
• A set of implementations of these practices (the proper nouns, Docker, Kubernetes, ECS, etc).

Issue

Closes: #

[k8s-ci-robot]

Welcome @azarboon!

It looks like this is your first PR to kubernetes/website 🎉. Please refer to our pull request process documentation to help your PR have a smooth ride to approval.

You will be prompted by a bot to use commands during the review process. Do not be afraid to follow the prompts! It is okay to experiment. Here is the bot commands documentation.

You can also check if kubernetes/website has its own contribution guidelines.

You may want to refer to our testing guide if you run into trouble with your tests not passing.

If you are having difficulty getting your pull request seen, please follow the recommended escalation practices. Also, for tips and tricks in the contribution process you may want to read the Kubernetes contributor cheat sheet. We want to make sure your contribution gets all the attention it needs!

Thank you, and welcome to Kubernetes. 😃

[netlify]

✅ Pull request preview available for checking

Built without sensitive environment variables

Name	Link
🔨 Latest commit	91ad67c
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-io-main-staging/deploys/670a68da1e7c9a0009ab6101
😎 Deploy Preview	https://deploy-preview-48299--kubernetes-io-main-staging.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[tengqm]

I'm okay with this note.
/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 4d277b6a8a1a0fdd76aa300fb037d0d2fb6f96d6

[Arhell]

lgtm

[sftim]

/retitle Explain nuances of the term "container"

[sftim]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 5c49cc2d76508c1a0b36ef66f4dac77aaaeedf3f

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sftim

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• content/en/docs/OWNERS [sftim]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment