Containers Are Not VMs!

This workshop was a follow-up to my proposed talk on the subject of the official Nextcloud Docker image. In this workshop we covered:

- Overview of the current official image vs my proposed new image
- How to build/run the new image
- What improvements can we make to better support the Nextcloud 12 feature set

The intended output of this session was an improved Dockerfile for Nextcloud which can be considered for production use.

No prior knowledge of Docker was assumed, but workshop participants should have Docker installed on their machines to gain the most out of this session.

Transcript

1. ST REAMLI NING TH E
   N E X T C L O U D D O C K E R
   EX PERI ENC E
   C O N TA I N E R S
   A R E N O T V M S !
   0 8 - 2 0 1 7
   D R . PA U L J A M E S A D A M S
   

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2. paul.adams@zalando.de
   @therealpadams
   baggerspion.net
   D R . PA U L J A M E S A D A M S
   Search & Personalisation
   Engineering Lead
   0 8 - 2 0 1 7
   

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3. 3
   WHERE DID ALL
   THIS STUFF COME
   FROM?
   “Junk” by Chris McInnis (https://flic.kr/p/pS8hp8)
   

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4. N E X T C L O U D I M A G E C O N T E N T S
   Debian Jessie
   123mb
   PHP 7.1-fpm
   259mb
   Nextcloud
   170mb
   ? Stuff
   82mb
   6 3 4 M B
   

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5. 5
   A L P I N E L I N U X C R U F T R E M O VA L
   PHP
   Saves 119mb from the base image! Do we need an entire PHP distribution?
   1. Identify Cruft.
   2. Remove Cruft.
   3. Profit!
   WHAT ARE THE QUICK WINS?
   

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6. WHERE DO WE END UP?
   2 5 8 M B
   

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