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Continuous Integration with GitLab
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Ivan Nemytchenko
November 23, 2016
Programming
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Continuous Integration with GitLab
Ivan Nemytchenko
November 23, 2016
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Transcript
CONTINUOUS INTEGRATION WITH GITLAB IVAN NEMYTCHENKO, DEVELOPER ADVOCATE
MODERN SOFTWARE DEVELOPMENT PROCESS IS SPREAD ACROSS MANY TOOLS
Travis - GitHub - Trello - Slack
Bitbucket - Semaphore - Pivotal Tracker - HipChat
Jenkins - GitLab - Jira
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CATGREP SOPHISTICATED TECHNOLOGIES INC. > file1.txt > file2.txt
REQUIREMENT #1 CONCATENATION RESULT SHOULD CONTAIN "HELLO WORLD"
cat file1.txt file2.txt | grep -q "Hello world"
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RUN OUR FIRST TEST INSIDE CI
.gitlab-ci.yml
test: script: cat file1.txt file2.txt | grep -q 'Hello world'
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REQUIREMENT #2 PACKAGE CODE BEFORE SENDING IT TO CUSTOMER
test: script: cat file1.txt file2.txt | grep -q 'Hello world'
package: script: cat file1.txt file2.txt | gzip > package.gz
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MAKE RESULTS OF YOUR BUILD DOWNLOADABLE
test: script: cat file1.txt file2.txt | grep -q 'Hello world'
package: script: cat file1.txt file2.txt | gzip > packaged.gz artifacts: paths: - packaged.gz
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RUN JOBS SEQUENTIALLY
stages: - test - package test: stage: test script: cat
file1.txt file2.txt | grep -q 'Hello world' package: stage: package script: cat file1.txt file2.txt | gzip > packaged.gz artifacts: paths: - packaged.gz
SPEEDING UP THE BUILD
#1: DUPLICATION
stages: - compile - test - package compile: stage: compile
script: cat file1.txt file2.txt > compiled.txt artifacts: paths: - compiled.txt test: stage: test script: cat compiled.txt | grep -q 'Hello world' package: stage: package script: cat compiled.txt | gzip > packaged.gz artifacts: paths: - packaged.gz
#2: RUBY 2.1 ????
LEARNING WHAT DOCKER IMAGE TO USE
image: alpine
image: alpine stages: - compile - test - package compile:
... test: ...
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> defined 3 stages > pass files between stages >
downloadable artifacts > optimized execution time
REQUIREMENT #3 ISO INSTEAD OF GZIP
DEALING WITH COMPLEX SCENARIOS
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image: alpine stages: - compile - test - package compile:
... test: ... pack-gz: stage: package script: cat compiled.txt | gzip > packaged.gz artifacts: paths: - packaged.gz pack-iso: stage: package script: - mkisofs -o ./packaged.iso ./compiled.txt artifacts: paths: - packaged.iso
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DEALING WITH MISSING SOFTWARE/PACKAGES
INSTALL PACKAGE IN ALPINE LINUX apk add -U cdrkit
script: - apk add -U cdrkit - mkisofs -o ./packaged.iso
./compiled.txt
pack-iso: stage: package before_script: - apk add -U cdrkit script:
- mkisofs -o ./packaged.iso ./compiled.txt artifacts: paths: - packaged.iso
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GITLAB REQUIREMENT #4 PUBLISH A SMALL WEBSITE WITH OUR PACKAGES
HTML + PACKAGES → AMAZON S3
aws s3 cp ./ s3://yourbucket/ --recursive
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FIRST AUTOMATED DEPLOYMENT
> awscli can be installed using pip > pip goes
together with python
s3: image: python:latest stage: deploy script: - pip install awscli
- aws s3 cp ./ s3://yourbucket/ --recursive
AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
variables: AWS_ACCESS_KEY_ID: "AKIAIOSFODNN7EXAMPLE" AWS_SECRET_ACCESS_KEY: “wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY” s3: image: python:latest stage: deploy
script: - pip install awscli - aws s3 cp ./ s3://yourbucket/ --recursive
KEEPING SECRET THINGS SECRET
SETTINGS --> VARIABLES
s3: image: python:latest stage: deploy script: - pip install awscli
- aws s3 cp ./ s3://yourbucket/ --recursive
So far so good:
REQUIREMENT #5 MORE THAN ONE DEVELOPER ON THE PROJECT
s3: image: python:latest stage: deploy script: - pip install awscli
- aws s3 cp ./ s3://yourbucket/ --recursive only: - master
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REQUIREMENT #6 WE NEED A SEPARATE PLACE FOR TESTING
GITLAB PAGES
HOST WEBSITES ON GITLAB PAGES > your job should be
named "pages" > put your files into "public" folder > specify "artifacts" section with this "public" folder
HOST WEBSITES ON GITLAB PAGES > your job should be
named "pages" > put your files into "public" folder > specify "artifacts" section with this "public" folder HTTP://<USERNAME>.GITLAB.IO/<PROJECTNAME>
pages: stage: deploy image: alpine:latest script: - mkdir -p ./public
&& cp ./*.* ./public/ artifacts: paths: - public except: - master
s3: image: python:latest stage: deploy script: - pip install awscli
- aws s3 cp ./ s3://yourbucket/ --recursive only: - master pages: image: alpine:latest stage: deploy script: - mkdir -p ./public && cp ./*.* ./public/ artifacts: paths: - public except: - master
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INTRODUCING ENVIRONMENTS
s3: environment: production image: python:latest stage: deploy script: - pip
install awscli - aws s3 cp ./ s3://$S3_BUCKET_NAME/ --recursive only: - master pages: image: alpine:latest environment: staging stage: deploy script: - mkdir -p ./public && cp ./*.* ./public/ artifacts: paths: - public except: - master
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REQUIREMENT #7 DO NOT MESS UP PRODUCTION
SWITCHING TO MANUAL DEPLOYMENT
s3: image: python:latest stage: deploy script: - pip install awscli
- aws s3 cp ./ s3://yourbucket/ --recursive only: - master when: manual
SUMMARY 1. Deployment is just a set of commands 2.
You need to provide secret keys 3. You specify where which branches should go to 4. GitLab conserves the history of deployments 5. You can enable manual deployment
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GO TO GITLAB.COM
@INEM
[email protected]
BIT.LY/GITLAB-CI1 BIT.LY/GITLAB-CI2