Icinga Web 2 is more - Module magic at Icinga Camp San Francisco

WWW.ICINGA.ORG
Icinga Web 2
...more than just another front-end
Icinga Camp
San Francisco 2014
25th Sept. - Team Icinga

DEV. WIKI. BLOG. DOC. | WWW.ICINGA.ORG
OVERVIEW Features
• Bunch of slides showing existing module prototypes
• Some details about Icinga Web 2 module internals
• Short live demo
Icinga Camp San Francisco 2014

WARNING Features
• These are just prototypes
• Some of them will never be released
• Others are running in production since several months
• You have to be patient
• We will be VERY busy preparing the Icinga Web 2.0 release
for the next few weeks

FEEDBACK WAFeNatTurEesD
• Many of our developers are from Europe
• Icinga is here to stay. We want to get it better and better!
• Help us understand your cloudy work-flows
• We want to be an important member of your tool chain
• Icinga is 100% Open Source. No appliance, no enterprise
version. Most of us live from doing consultancy,
customisations, trainings
• If you want a priority lane for your feature request you can
buy us
• We also accept beer.

Features
define host {
name host-with-graph-template
register 0
icon_image s.gif' width='0' height='0' border='0'></a><a
href='/pnp4nagios/graph?host=$HOSTNAME$&srv=$SERVICEDESC$'
class='tips' rel='/pnp4nagios/popup?host=$HOSTNAME$&srv=
$SERVICEDESC$'><img width='20' height='20' src='/nagios/
images/logos/Stats2.png' border='0
}

• Good old times :) Features
• Right now we have a generic grapher hook
• Different graphers may provide different capabilities

• First sample implementaFtieoant: uPrNePs4Nagios

• PNP4Nagios? Features
• Oldschool RRD files?
• YES!!

• Graphite? Sure: Features

• Plans for next year: inGraFpeha t2u.xres
• Choose Graphite or SQL backend
• A bunch of default templates
• Click & store your own ones

• Same game, a generic “tFicekaettu” rheosok
• Implementations need to match a pattern and provide a link

• generictts is a very simFpelea itmuprelesmentation
• Creates links in comments, acknowledgements and
downtimes:
• Works also for history lists

• rt – RequestTracker integFreaatitounres

• We want more! Features
• Notifications can generate, update and resolve issue tickets
• Lot's of custom implementations out there
• A generic incident-tracking module?

• Usually a check plugin haFse:atures
– an exit code
– text output
– performance data
• What if you need more details?
• Structure?
• Persist state and track changes?

• First example: Features
SSH
icingacli ssh hosts scan

Features

• Define what you consideFr etoa tbuer “essecure”
• Re-scan regularly or on-demand
• A single check to watch all of them...
• ...or just a filtered subset
• Track key changes...
• ...and authorise them. Manually - if you want.

• I want to do the same wiFthe aStSuLr ceesrtificates
• Ever wanted to know where you are using a specific wildcard
certificate?
• Certificates signed by a specific CA?
• Go through the whole STARTTLS handshaking process when
monitoring your services?

• Using Puppet exported reFseoautruceres sfor Host keys?
icingaweb::ssh::known_hosts { '/etc/ssh/known_hosts': }
# Filtered by domain, only ecdsa keys:
icingaweb::ssh::known_hosts { '/etc/ssh/known_hosts':
filter => {
domain => [ 'internal.tld', 'somewhere.io' ],
type => 'ecdsa',
}
}
# Deploy for a specific user:
icingaweb::ssh::known_hosts { '/root/.ssh/known_hosts':
filter => {
ip => '10.17.0.0/16'
}
}

• Puppet. Just a playgrounFd eraigthutr neosw:

• Switches? Features
• STP?
• Half duplex?
• Traffic?

• Do you remember that laFnegautaugree csalled Java?
• They have great interfaces for monitoring
• Usually dev people don't care and ops people don't know
about
• They named it JMX
• Forget about check_jmx, deploy and use Jolokia
• Try check_jmx4perl
• Use jconsole to find out more...
• ...or walk the tree with Jolokia

• Monitor Business ProcessFeesa!tures

• We wrote and write custoFmea mtuordeusles for specific needs

WHY SHOULDF eIa tDurOes SO?
• We believe in Open Source Software
• We want to integrate all the tools we like
• We want to make it easy for others to include Icinga in their
projects
• You can bootstrap Icinga Web 2 in an embedded mode
• You will be allowed to run your module in a standalone mode

• You get a fast and secureF ewaetbu irnetesrface
• No more CSS/JS loading after you see the login page
• Shipped in 50ms
• DOM ready in 100-150ms
• ~70kB total (including jQuery and additional modules)
• Subsequent requests are even faster

• Module structure Features

• Let's start with simple stFueff:a itmuaregess
• icingacamp/public/img/nice-image.png
→ <baseurl>/img/icingacamp/nice-image.png
• We worked very hard to implement animated GIF file
support

• Use your own CSS: <moduFleeaptautrhe>s/public/module.less
• Just one file. Want more?
• Not directly accessible through web browser
• We ship ALL your CSS in css/icinga.css or css/icinga.min.css
• Fully transparent (optional) caching
• Automagic Etag handling based on source file names, sizes
and modification times

• Don't worry, you're not gFoeinagt utor edsestroy anything:
• Do whatever you want in
your CSS file
• It will be transformed in a
safe way, you cannot break
other modules

• LESS? Less is more! httpF:/e/leastsucrsess.org/
• BUT: keep it SIMPLE!

• Enjoy responsiveness in Faen aetausrye wsay

• You don't have to care abFoeuatt JuarveasScript
• But you can if you want to
• We try to make things easy for module writers

• There is a translation moFdeualetures
• Documentation for developers and translators inside
• Nice toolchain

• Write tests – in case youF feeealt yuorue sneed them

QUESTIONS & ANSWERS
Thomas Gelf - Icinga Camp San Francisco 2014
Web + Blog www.icinga.org
Docs docs.icinga.org
Development dev.icinga.org
Sourcecode git.icinga.org
Releases github.com/Icinga
Wiki wiki.icinga.org
IRC #icinga on FreeNode
Mailing lists lists.icinga.org
Support support.icinga.org
Twitter twitter.com/icinga
Facebook facebook.com/icinga
…….. Everywhere!
?
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Icinga Web 2 is more - Module magic at Icinga Camp San Francisco

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