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01
아젠다
What is DevOps?
02 THINK03 CODE
04 DELIVER
05 RUN
06 MANAGE07 LEARN
08 CULTURE
Cognitive Cloud ConnectDevOps_Cognitive Cloud Connect
THINK
LEARN
RUN
{�}CODE
DELIVER
CULTURE
MANAGE
5Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
DevOps 란?§ Development + Operations ?
§ 개발및운영문화의변경
§ 빠른개발, feedback 및적용
§ 자동화를통한비용 ↓, 시간 ↓, 오류 ↓, 효율성 ↑
6Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
애자일방법론§ 빠른생명주기
§ 프로그램 vs. 문서
§ post Waterfall§ Scrum & sprint§ 방법론§ XP§ Pair programming
http://www.screenmedia.co.uk/blog/2014/08/what-is-agile-development-a-brief-introduction/
7Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect.
애자일, DevOpsBusiness Process
Ah ha! Ka ching!
Biz Dev Ops
Agile Developmentfixes this
DevOpsFixes this
8Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
DevOps 어려운이유?§ 개발, 시스템과아키텍처에대한깊은이해필요
§ 높은구축비용
§ 유지보수문제§ 개발자의저항감
• 업무강도향상
• 문서 vs. test
9Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
그래도 DevOps§ Legacy
• 대규모업데이트의영향최소화를위해새벽에배포
• 버그추적과전체롤백의어려움
• 문제점파악및해결에따른부서간반목
§ DevOps• 효율적인테스트및디버깅을위해업무시간중배포
• 문제발생시바로롤백, 수정및재배포
• 팀원간원할한소통과책임분배
• 빠른개발및적용
12Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Think§ IBM Design Thinking§ MVP - Minimum Viable Product
• 문서보다개발이빠르다?!
§ Issue tracking
13Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Issue 전달방법§ Legacy
• 구두
• 이메일
• Excel / Word
§ DevOps• Slack• Bugzilla• Redmine• JIRA• Trello• mantis
14Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Bluemix DevOps: Track & Plan§ 사실 Rational Team Concert§ Issue, 작업관리
• Defect(bug), task, story, epic etc..§ Code repository 연동
16Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Source Code Management (SCM)§ Version Control System
• CVS• Subversion
§ History management§ Branch§ 협업
Version Database
Central VCS Server
file
CheckoutComputer A
file
CheckoutComputer B
Version 3
Version 2
Version 1
17Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Distributed SCM§ 분산구조
• git• mercurial• bazaar
§ 각자 version control 가능• 쉬운 branch• 쉬운 commit
Version Database
Server Computer
Version 3
Version 2
Version 1
Computer A
Version Database
Version 3
Version 2
Version 1
file
Computer B
Version Database
Version 3
Version 2
Version 1
file
19Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
In case of fire..§ Source 의안전
§ commit & push§ 불나면나가야합니다..§ npm install -g git-fire
20Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
GitHub Enterprise by IBM§ GitHub Enterprise on Bluemix
Dedicated§ GitHub Issue§ Pull request
22Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Continuous Integration (CI)
https://insights.sei.cmu.edu/devops/2015/01/continuous-integration-in-devops-1.html
§ Test & Push & Test§ Test 자동화
• Unit test• Functional test• UX test
- Selenium- PhantomJS
§ Build & Deploy
23Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Continuous Delivery (CD)§ CI, CD
• Jenkins, Travis, UrbanCodeDeploy (IBM)§ Infrastructure 자동화
• Puppet, Ansiable, Chef§ Build / Environment
• Ant, Maven, Gradle, UrbanCodeRelease (IBM)• Fabric, npm
§ Shell scripts..
24Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
자동화의장점§ 반복작업에의한오류감소
§ 작업의부담경감
§ 작업단위를줄여영향최소화§ Scale out 가능
26Page
Services, options, and capabilities to run solutions
RUN
THINK
LEARN
RUN
{�}CODE
DELIVER
CULTURE
MANAGE
28Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
산, 바다, 계곡 캠핑장 글램핑 호텔
사이트
데크
텐트
그릴
바비큐
맥주
사이트
데크
텐트
그릴
바비큐
맥주
사이트
데크
텐트
그릴
바비큐
맥주
사이트
데크
텐트
그릴
바비큐
맥주
29Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
Infrastructure as a Service
Code
Data
Runtime
Middleware
OS
Virtualization
Servers
Storage
Networking
Code
Data
Runtime
Middleware
OS
Virtualization
Servers
Storage
Networking
Platform as a Service
Code
Data
Runtime
Middleware
OS
Virtualization
Servers
Storage
Networking
Code
Data
Runtime
Middleware
OS
Virtualization
Servers
Storage
Networking
Traditional IT Software as a Service
31Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
관리방법론 / 도구§ The Circuit Breaker pattern§ Auto scale§ Automated monitoring§ Fast recovery§ Resiliency§ Chaotic testing§ High availability
§ IBM AppScan§ Slack§ PagerDuty§ NewRelic§ Active Deploy§ Monitoring & Analytics
34Page
Continuously experiment to deliver the right solution
LEARN
THINK
LEARN
RUN
{�}CODE
DELIVER
CULTURE
MANAGE
35Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
사용자가원하는것?§ A/B Testing§ Hyphthesis-driven development§ 잘모르겠으면다구현해보고사용자의반응을보자
https://www.ibm.com/developerworks/library/d-testops-continuous-test/
Visitors arerandomly distributed
Best version: A
Conversion Rate34%57%
50% 50%
37Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
How the customerexplained it
How the projectleader understood it
How the analystdesigned it
How the programmer
wrote it
How the business consultant described it
How the project was documented
What operationsinstalled
How the customerwas billed
How it wassupported
What the customerreally neededhttp://projectcartoon.com/
38Page
Cognitive Cloud ConnectDevOps_CognitiveCloud Connect
개발과운영의간극§ 개발
• 아주빠른템포
• 문제가생기면밀고새로..• 새로운환경에익숙함
§ 운영• 느린템포
• 디비/앱은증분업데이트로
- 문제시롤백!• 권한관리가매우중요
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