jump into squeak - integrate squeak projects with docker & github

Jump into DevelopmentSelf-Sustaining Systems

Hubert Hesse, Robert LehmannSoftware Architecture Group

Hasso Plattner Institute

© 2008 by FF-Kostheim, https://www.flickr.com/photos/ffkostheim/2533995614Throughout this presentation,

Amazon Web Services and its logos are trademarks of Amazon.com, Inc.Docker and its logos are trademarks of Docker, Inc.Git and its logos are trademarks of Software Freedom Conservancy

Wild Squeak repositoryappeared!

© 2007–2014 Cheezburger, Inc.

» ExperimentSignals repository

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Download & install Squeak

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Install dependenciesFileTree, Metacello

Installer ss3 project: 'FileTree'; install: 'ConfigurationOfFileTree'. ((Smalltalk at: #ConfigurationOfFileTree) project version: '1.0') load.

(Smalltalk at: #Gofer) new url: 'http://seaside.gemtalksystems.com/ss/metacello'; package: 'ConfigurationOfMetacello'; load. ((Smalltalk at: #ConfigurationOfMetacello) project version: #'previewBootstrap') load. (Smalltalk at: #Metacello) new configuration: 'MetacelloPreview'; version: #'stable'; repository: 'github://dalehenrich/metacello-work:configuration'; get. (Smalltalk at: #Metacello) new configuration: 'MetacelloPreview'; version: #'stable'; repository: 'github://dalehenrich/metacello-work:configuration'; load.

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Install repositoryor: repository: ‘github://marceltaeumel/signals’

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» Contributeie., fix a test ☺

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Fork on Github

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Use forkRedirect Git to our Github fork

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Monticello save

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Fixed a test

Write commit message

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Fixed a test

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See changesin filesystem

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Fixed a test

Git commit…again

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Publishon Github

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© 2010 by iragazzidiredbull, https://www.flickr.com/photos/redbullfanclub/4618355162

☛ install Squeak☛ clone repository☛ install repository☛ try out☛ make changes☛ fork repository☛ change upstream☛ commit to Monticello☛ commit to Git☛ push repository

☹ complex installation☹ duplicate input☹ much boilerplate☹ many roundtrips

Jump into Development …very carefully

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The Docker logo © Docker, Inc.Git Logo © Jason Long

docker + Github

Automated Squeak Deployment

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http://www.docker.com/marks_and_logos/

http://www.docker.com/marks_and_logos/

http://git-scm.com/downloads/logos

http://git-scm.com/downloads/logos

© 2008 by Roberto Ventre, https://www.flickr.com/photos/robie06/4653351388

☛ install Squeak☛ clone repository☛ install repository☛ try out☛ make changes☛ fork repository☛ change upstream☛ commit to Monticello☛ commit to Git☛ push repository☛ fork own repository☛ pull request

setup

commit

setup

commit

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setup Squeak instances on-demand

☛ install Squeak☛ install Squeak libraries☛ clone repository☛ install repository☛ provide remote access

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#!/bin/bashwget http://ftp.squeak.org/4.5/Squeak-4.5-All-in-One.zipecho “Installer ss3 install: 'FileTree'.“ > install.st./squeak.sh -headless install.st && vncstart -p $PORT

bare hands approach: Shell script.


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#!/bin/bashwget http://ftp.squeak.org/4.5/Squeak-4.5-All-in-One.zipecho “Installer ss3 install: 'FileTree'.“ > install.st./squeak.sh -headless install.st

bare hands approach: Shell script.


poor performancere-run every deployment step time and time again

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full-on approach: VM image.

Squeak-4.5-All-in-One/install.st


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full-on approach: VM image. (includes OS)

Squeak-4.5-All-in-One/install.st


heavy footprintimage needs to include everything

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Linux

Libraries (Git, VNC, …)

Squeak

Commit supportRepository V

NC

Solution: Linux Containers via Docker.


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Linux

Libraries (Git, VNC, …)

Squeak

Commit supportRepository V

NC

Solution: Linux Containers via Docker.

linux containersLXC allows optimizations, eg. kernel samepage merging

union filesystemAUFS stores delta only

containers are configurable versioning, isolation, port mapping

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setup

commit

setup

commit

✔

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localhostInstall Docker; clone repo;docker build; docker run31

middleware

middleware

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middleware

middleware

maintenance burdenSingle Point of Failure

limited resourceswho pays the dime?

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IE © by Pit-tux, http://findicons.com/icon/13282/ie Amazon Web Services is a trademark of Amazon.com, Inc.34

IE © by Pit-tux, http://findicons.com/icon/13282/ie Amazon Web Services is a trademark of Amazon.com, Inc.

requires AWS accountthere is no free lunch

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Same Origin PolicyEC2 not usable in aws-sdk.js

requires AWS accountthere is no free lunch

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CORS proxy

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CORS proxy

AWS credentials in the open

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© 2008 by Roberto Ventre, https://www.flickr.com/photos/robie06/4653351388 Amazon Web Services is a trademark of Amazon.com, Inc.


setup

commit

setup

commit

✔deploydeploy

✔

( )

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?#1 Where is this represented?!

#2 How do we get it into Git?

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repository .filetree Signals.package

.filetree (omitted from here on for brevity)

monticello.meta package version postscript

SignalTest.class README.md properties.json methodProperties.json instance

test01ConnectDisconnect.st class

new.st …

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new.st …

this file is being writtenby a Monticello save*

actually, MCFileTreeRepository just deletes the top-level repository and writes out everything fresh.42






new.st …


actually, MCFileTreeRepository just deletes the top-level repository and writes out everything fresh.

poll directory for changeseg. inotifywait black-box approach

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new.st …


actually, MCFileTreeRepository just deletes the top-level repository and writes out everything fresh.

poll directory for changeseg. inotifywait black-box approach

unclear interaction for credentialsfrom console, system dialogs, key store?

extra environmentrace conditions, auxiliary binary, setup per repository

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scripted componentpush

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new workflowconfusing for experienced developers

scripted componentpush

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use Monticello

metacello-workhas github:// support

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use Monticello

metacello-workhas github:// support

zipball downloadread-only, no commit/push

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git:///signals/

extend Monticello

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Monticello

MCGithubRepository

git-clone git-push git-commit hub fork

authorized

MCFileTreeRepository

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Monticello

MCGithubRepository

git-clone git-push git-commit hub fork

authorized

git-credential-store environment

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setup

commit

setup

commit

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✔

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Quickstart☛ Open Monticello☛ Create a Github repository☛ Save package to Github

repository

☛ Add Docker instructions¹☛ Add packaging instructions²☛ Add jump into button3

☛ Commit☛ Optional: Setup Monticello

postscript to load your application

¹ DockerfileFROM lehmannro/squeakADD . /checkoutCMD run.sh

2 .packagesSignals

3 README.md[![Jump into](shields.io/badge/jump-into-green.svg)](http://novnc.com/?autoconn…)

a new Github repository

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remote boxwith Squeak

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Monticello save

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new Github repository…automatically created

marceltaeumel/signals

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pull request

marceltaeumel/signals

marceltaeumel:master...master

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↪ deploy on AWSfrom user credentials

↪ support multiple versions in Monticello

↪ make bootstrapping easier(install from SS3)

↪ image retrieval from session

Next Steps Limitations

✗ copious Windows deployment1

✗ restricts Git to pure sequential history(no tags, branches)

✗ no git-merge during merge conflicts

✗ Docker SaaS’esstill experimental

✗ Docker Index a SPoF

[1] http://docs.docker.com/installation/windows/

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setup

commit

setup

commit

✔

✔

http://github.com/lehmannro/metacello-githttp://github.com/lehmannro/squeak-docker

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git:///signals/

extend Monticello

Thierry Goubier’s filetreehttps://github.com/ThierryGoubier/filetree

FileTree on steroids, onlyno push, pull, fork

Tim Felgentreff’s Git O’cellohttps://github.com/timfel/gitocello

new Registry, Package Format, git hooks

emulate MCZ for squeakvm

complex setup

Dale Henrichs’ BuilderCIhttps://github.com/dalehenrich/builderCI

collection of bash scripts to execute tests with travis ci

provides compatibility with GLASS, Pharo and Squeak

complex

Daniel Neumann [email protected]

credentials

memory

442Mvanilla Squeak

566Mdockerized VNCXfb

jump into squeak - integrate squeak projects with docker & github

Technology

install squeak

squeak clone repository

stable repository

wild squeak repository

changes fork repository

experiment signals repository

squeak libraries

github fork