163 lines
6.3 KiB
HTML
163 lines
6.3 KiB
HTML
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<title>reveal.js</title>
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<link rel="stylesheet" href="dist/reset.css">
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<link rel="stylesheet" href="dist/reveal.css">
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<link rel="stylesheet" href="dist/theme/beige.css" id="theme">
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<!-- Theme used for syntax highlighted code -->
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<link rel="stylesheet" href="plugin/highlight/monokai.css" id="highlight-theme">
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</head>
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<body>
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<div class="reveal">
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<div class="slides">
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<section>
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<section data-markdown data-separator="---" data-separator-notes="^Note:">
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<textarea data-template>
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<u>Containers</u>
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<br/>
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<br/>
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Ameya Shenoy
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<br/>
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<a href="https://github.com/codingcoffee" target="_blank">@codingcoffee</a>
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Note:
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Feel free to heckle.
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Interupt me. Ask questions in the middle, makes this fun, I like it.
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Or you can wait till the end, but interactive is good
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</textarea>
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</section>
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</section>
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<section>
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<section data-markdown data-separator="---" data-separator-notes="^Note:">
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<textarea data-template>
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<img data-src="./images/vm_vs_container.jpg"></img>
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<br/>
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VM Vs Container
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Note:
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I'll be talking about containers, their basic underlying working, their functionality how eYantra can benefit it
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been around since 2008, as c-groups in linux, this paved the path for containers later on
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- examples: firejail, lxc, docker
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---
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Limitations of VM
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- dependency hell
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- versioning
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- upgrades
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- replication
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Note:
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- originally traditional servers, perfect replication not possible, multiple variables
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- os, os version, os deps and versions, application deps and versions
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- probelems
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- versioning: i setup test env today, and setup production tomorrow, there may be inconcistency in the OS level deps, which may cause incompatibility
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- upgrade: keeping all deps updated is important to avoid security vulns, but it comes at a cost of inconcistency
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- replication: b/w qa and prod env, local dev, works on my machine, doesnt work in prod, dev work on mac books, prod is centos
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---
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Containers
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- filesystem isolation
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- process isolation
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- device isolation
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- network isolation
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- scaling
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Note:
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- now containres, package entire app, incluing the OS level deps, makes it easy to deploy and have concistency in the environemnts
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- now:
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- isolation
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- fs: file:///home/cc firefox demo, iso apps scannnig directories they are not supposed to, like chrome
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- process: app 1 isnt aware about app b running
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- d run -it --rm --name nginx nginx:alpine
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- d exec -it nginx sh
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- device: GPU
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- lxc exec steam -- sudo --login --user ubuntu bash
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- nvidia-smi
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- lxc exec matlab -- sudo --login --user ubuntu bash
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- nvidia-smi
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- network:
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- d run -it --rm python:3.9.4-alpine3.13 sh
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- d run -it --rm --network none python:3.9.4-alpine3.13 sh
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- scaling: better utilization of resources, resource allocation and sharing
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---
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Kubernetes
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- 0 downtime upgrade <a href="https://nginx-blue-green.codingcoffee.me/" target="_blank">demo</a>
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- maintains state
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- scaling
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Note:
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- Production-Grade Container Orchestration Platform
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- container orchestration takes away a lot of operations workload from engg
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- SSL termination
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- think of k8s as a knowledge base of all the best practicies of deployment for applications built at scale by Google
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</textarea>
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</section>
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</section>
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<section>
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<section data-markdown data-separator="---" data-separator-notes="^Note:">
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<textarea data-template>
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Refs
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- <a href="https://ieeexplore.ieee.org/abstract/document/7036275" target="_blank">To Docker or Not to Docker: A Security Perspective</a>
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- <a href="https://arxiv.org/abs/1501.02967" target="_blank">Analysis of Docker Security</a>
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- <a href="https://www.seltzer.com/margo/teaching/CS508.19/papers/merkel14.pdf" target="_blank">Lightweight Linux Containers for Consistent Development and Deployment</a>
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Note:
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- A few papers which I read, but I'd rather you practically use this stuff
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</textarea>
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</section>
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</section>
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<section>
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<section data-markdown data-separator="---" data-separator-notes="^Note:">
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<textarea data-template>
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Thanks for listening!
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<br/>
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<br/>
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<br/>
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<div style="text-align: left">
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<small>
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<a href="https://gitea.codingcoffee.me/codingcoffee/slides" target="_blank">codingcoffee/slides</a>
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</small>
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</div>
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<div style="text-align: right">
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<a href="https://codingcoffee.dev/" target="_blank">Ameya Shenoy</a>
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</div>
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</textarea>
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</section>
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</section>
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</div>
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</div>
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<script src="dist/reveal.js"></script>
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<script src="plugin/notes/notes.js"></script>
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<script src="plugin/markdown/markdown.js"></script>
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<script src="plugin/highlight/highlight.js"></script>
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<script>
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// More info about initialization & config:
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// - https://revealjs.com/initialization/
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// - https://revealjs.com/config/
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Reveal.initialize({
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hash: true,
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slideNumber: 'c/t',
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// showNotes: true,
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// Learn about plugins: https://revealjs.com/plugins/
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plugins: [ RevealMarkdown, RevealHighlight, RevealNotes ]
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});
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</script>
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</body>
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</html>
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