Elastic Stackによるログの監視入門

Transcript

1. ‹#› 2017/09/25 Evangelist at Elastic Jun Ohtani @johtani Elastic StackʹΑΔ


   ϩάͷ؂ࢹೖ໳

2. ‹#›

3. ΞδΣϯμ • Elastic Stack ͱ͸ʁ • ؆୯ͳ঺հ • Elastic StackͰ͍Ζ͍ΖϩάՄࢹԽʴ؂ࢹ

   • Audit log / Access log / MySQL slow log • ΧελϜϩά • ͞Βʹͦͷઌ͸ʁ 3

4. about • Me, Jun Ohtani / Technical Advocate ‒ lucene-gosenίϛολʔ

   ‒ ElasticSearch Server೔ຊޠ൛ͷ຋༁ ‒ http://blog.johtani.info
 • Elasticsearch, founded in 2012 ‒ Products: Elasticsearch, Logstash, Kibana, Beats 
 X-Pack, Elastic Cloud
 Professional services: Support & development subscriptions ‒ Trainings, Consulting, SaaS 4

5. 5 Elastic Stack 100% open source No enterprise edition All

   new versions with 5.0

6. 6 Beats Lightweight Data Shippers Ship data from the source

   Ship and centralize in Elasticsearch Ship to Logstash for transformation and parsing Ship to Elastic Cloud Libbeat: API framework to build custom beats 30+ community Beats

7. 7 FILEBEAT Log Files METRICBEAT Metrics PACKETBEAT Network Data WINGLOGBEAT

   Window Events More than 30 community Beats and growing … Apachebeat, dockbeat, httpbeat, mysqlbeat, nginxbeat, redis beats, twitterbeat, and more

8. 8 Logstash Data processing pipeline Ingest data of all shapes,

   sizes, and sources Parse and dynamically transform data Transport data to any output Secure and encrypt data inputs Build your own pipeline More than 200+ plugins

9. Logstash architecture 9 Input Output Filter ? ? collect and

   split alter and enrich store and visualize

10. Elasticsearch Heart of the Elastic Stack 10 Distributed, Scalable High-availability

    Multi-tenancy Developer Friendly Real-time, Full-text Search Aggregations

11. ݕࡧͱͯ͠ͷ
 Elasticsearch

12. Elasticsearchͱ͸ʁ

13. ϑϦʔϫʔυݕࡧ 13

14. ߜΓࠐΈ 14

15. ϋΠϥΠτ 15

16. ιʔτ 16

17. ϖʔδϯά 17

18. ूܭ 18

19. αδΣετ 19

20. Elasticsearch in 10 seconds • εΩʔϚϑϦʔɺ෼ࢄυΩϡϝϯτετΞɺREST & JSON • Φʔϓϯιʔε:

    Apache License 2.0 • ઃఆͳ͠Ͱ؆୯ʹࢼ͢͜ͱ͕Մೳ • JavaͰ࣮૷ɻ֦ு΋༰қ 20

21. σʔλొ࿥ 21 curl -XPUT localhost:9200/books/book/1 -d ' { "title" :

    "Elasticsearch - The definitive guide", "authors" : "Clinton Gormley", "started" : "2013-02-04", "pages" : 230 }'

22. Ecosystem • Plugins ‒ ϓϥάΠϯʹΑΔػೳͷ௥Ճ • ΫϥΠΞϯτϥΠϒϥϦ • Java, Ruby,

    python, php, perl, javascript, .NET • Scala, clojure, go 22

23. 23 Kibana Window into the Elastic Stack Visualize and analyze

    Geospatial Customize and Share Reports Graph Exploration UX to secure and manage the Elastic Stack Build Custom Apps

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25. 25

26. None

27. Nginx/Apache2 Access Log

28. A Nginx/Apache2 module - Filebeat • Enable Nginx/Apache2 module •

    Configure only path of access log file • Also error file • Run filebeat • Load Kibana dashboard • Tutrial
 https://www.elastic.co/guide/en/beats/ filebeat/current/_tutorial.html 28

29. Auditd log

30. Auditd module - Filebeat • Enable auditd module • Configure

    only path of audit log file • Run filebeat • Load Kibana dashboard 30

31. Deep dive in Filebeat module 1. Filebeat : Load index

    template to Elasticsearch if it doesn't exist 2. Filebeat : Load ingest pipeline setting to Es if it doesn't exist 3. Filebeat : Load Kibana sample dashboard 4. Filebeat : Ship log data to Elasticsearch with pipeline parameter 5. Elasticsearch : Parse/Modify/Enrich logs with ingest node in Es 6. Elasticsearch : Store logs in Es 31

32. MySQL slow log

33. MySQL module - Filebeat • Enable mysql module • Configure

    only path of slow log file • Also error log file • Run filebeat • Load Kibana dashboard 33

34. Packetbeat - Another monitoring • Network packet analyzer • Support

    many protocols • Ship to Es or Logstash • Visualize in Kibana • Products page
 https://www.elastic.co/ products/beats/packetbeat 34

35. Sample dashboard and demo 35

36. ΧελϜͳLog

37. Multi line • Support Filebeat & Logstash 37 Filebeat Logstash

38. Grok filter 38 filter { grok { match => {

    "message" => "%{COMBINEDAPACHELOG}" } break_on_match => false } date { match => ["timestamp", "dd/MMM/YYYY:HH:mm:ss Z"] locale => en } geoip { source => ["clientip"] } useragent { source => "agent" target => "useragent" } }

39. Parse with Grok filter 39 189.120.xx.xx - - [02/Dec/2014:12:18:29 +0900]

    "GET /manager/html HTTP/1.1" 404 274 "-" "Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0" {… "@timestamp": "2015-04-10T09:07:49.325Z", "clientip": "189.120.xx.xx", "ident": "-", "auth": "-", "timestamp": "02/Dec/2014:12:18:29 +0900", "verb": "GET", "request": "/manager/html", … "agent": "\"Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/

40. Grok patterns • Regular expression & Allow you to name

    it • Over 120 reusable patterns • Example pattern: 40 USERNAME [a-zA-Z0-9._-]+ INT (?:[+-]?(?:[0-9]+)) COMMONAPACHELOG %{IPORHOST:clientip} % {HTTPDUSER:ident} %{USER:auth} \[%{HTTPDATE:timestamp}\] "(?:% {WORD:verb} % {NOTSPACE:request}(?: HTTP/%

41. Grok debugger • In Kibana dev tools since 5.5.0 with

    X-Pack basic • Still provide https://grokdebug.herokuapp.com 41

42. ͞Βʹͦͷઌ͸ʁ

43. Single install Extensions for the Elastic Stack Subscription pricing X-Pack

    43 Security Alerting Monitoring Reporting Graph Machine Learning

44. Ξϥʔτͱ༧ଌ

45. Alerting X-Pack 45 • Create Watches to detect changes in

    your data • Trigger automatic notifications • Setup nested alerts • Store and track alert history SETUP ALERTS NOTIFY AND INTEGRATE • Email • Slack • Pagerduty • Hipchat or JIRA • Other monitoring systems

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47. Machine Learning X-Pack 47 • Automatically detect anomalies • Advanced

    correlation and categorization • Identify root cause(s) • Expose early warning signs UNSUPERVISED MACHINE LEARNING ENABLE NEW USE CASES • Analyze time series data • Expand security, IT Ops, fraud, finance, and many more use cases • Available as beta in the 5.4 release

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49. ࢀߟจݙ • Elasticsearch - The Definitive guide ‒ http://www.elastic.co/guide/en/elasticsearch/guide/current/index.html •

    ॻ੶ʢ೔ຊޠʣ ‒ ElasticSearchServer೔ຊޠ൛ ‒ σʔλ෼ੳج൫ߏஙೖ໳
 2017೥9݄21೔ൃച 49

50. ࢀߟαΠτ • Ϣʔεέʔε • https://www.elastic.co/use-cases • DiscussʢWebϑΥʔϥϜʣ • https://discuss.elastic.co •

    Elastic{ON}ͷϏσΦͱࢿྉ • https://www.elastic.co/elasticon/videos • αϙʔτϝχϡʔ • https://www.elastic.co/subscriptions 50

51. Thanks for listening! Q & A We’re hiring! https://www.elastic.co/about/careers/ We’re

    helping! https://www.elastic.co/subscriptions http://training.elastic.co