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無限にスケールする上に自律的なJenkinsに見る夢~AWS篇~ / Dream of aut...
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moznion
August 18, 2018
Technology
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無限にスケールする上に自律的なJenkinsに見る夢~AWS篇~ / Dream of autonomous and infinite scalable Jenkins with AWS
Kyotoなんか #4の資料です
moznion
August 18, 2018
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Transcript
ແݶʹεέʔϧ͢Δ্ʹ ࣗతͳJenkinsʹݟΔເ ~AWSἫ~ KyotoͳΜ͔ #4 @moznion
@moznion Software engineer Hatena Intern 2013
Jenkins
Jenkins - CI (Continuous Integration) Platform - Workflow - ศརͳcron
Why Jenkins?
Why Jenkins? - ͱͱ (Ұ෦ࠓ) CircleCIΛ͍ͬͯͨ - Job͕૿͑ΔʹͭΕ٧·Δqueue - ϓϥϯ্͛Δͱߴ͍ΜεΑ……
- ͬͱϚονϣͳϚγϯͰϏϧυ͍ͨ͠ͱ͍͏ཉ - ͦΖͦΖͪΌΜͱͨ͠σϓϩΠϑϩʔͱ͔Λ͍͑ͨ -
Why Jenkins? - ͱͱ (Ұ෦ࠓ) CircleCIΛ͍ͬͯͨ - Job͕૿͑ΔʹͭΕ٧·Δqueue - ϓϥϯ্͛Δͱߴ͍ΜεΑ……
- ͬͱϚονϣͳϚγϯͰϏϧυ͍ͨ͠ͱ͍͏ཉ - ͦΖͦΖͪΌΜͱͨ͠σϓϩΠϑϩʔͱ͔Λ͍͑ͨ - ͱͱJenkinsΛεέʔϧͤ͞Δํ๏Λ͍ͬͯͨ
Jenkinsӡ༻ʹࡍͯ͠ग़͘Θ͢
Jenkinsӡ༻ʹࡍͯ͠ग़͘Θ͢ - ฒྻ࣮ߦJobͷ૿Ճʹ͏ੑೳྼԽ - ߜΔͱbuildͪͷΩϡʔ͕٧·Δ͠…… - Slave nodeͷӡ༻େม͗͢Δ - Master
InstanceࢮͶͳ͍ - ͓ئ͍͠·͢ͷڪා (™ @kyanny)
Jenkinsӡ༻ʹࡍͯ͠ग़͘Θ͢ - ฒྻ࣮ߦJobͷ૿Ճʹ͏ੑೳྼԽ - ߜΔͱbuildͪͷΩϡʔ͕٧·Δ͠…… - Slave nodeͷӡ༻େม͗͢Δ - Master
InstanceࢮͶͳ͍ - ͓ئ͍͠·͢ͷڪා (™ @kyanny)
ฒྻjob্͛ΔͷϚδَʂ
ฒྻjob্͛ΔͷϚδَ SlaveΛ͢ͷ؆୯ʂʂʂʂ
ฒྻjob্͛ΔͷϚδَ - slave͢ͷ؆୯ͳΜ͚ͩͲ…… - ୯७ʹཧίετ͕૿͑Δͧʂ - ʮ͜ͷslaveͩͱͳ͔ͥςετ͕ίέ·͢ʯ
ฒྻjob্͛ΔͷϚδَ - slave͢ͷ؆୯ͳΜ͚ͩͲ…… - ΦʔτεέʔϦϯάΛͪ·ͪ·͍ͬͯ͘ඞཁ͕͋Γ…… - ΠϯελϯεΛ༡͓ͤͯ࣌ؒ͘ແ͍ - CIΑ΄ͲϓϩδΣΫτཱ͕ͯࠐΜͰͳ͍ݶΓ৸ͯΔ͕࣌ؒ ࢧత
- ׂͱઃఆ͕͍͠ (ίπ͕͍Δ)
͏͏……
զʑ΄ͬͱ͍ͯແݶʹϏϧυ͕εέʔϧ͢Δ Jenkins͕΄͍͚ͩ͠ͳΜ͡Ό……
ͦΜͳͷ…… ͋Δʂʂʂ
ͦΜͳͷ…… ͋Δʂʂʂ
AWS CodeBuild
AWS CodeBuild - ୯Ґͷ࣌ؒି͠ - ҙͷίϯςφΛ࣮ߦͰ͖Δ - ͦͷίϯςφ্ͰϏϧυΒςετΒ͢Δ - (LambdaΑΓ͕͔͔࣌ؒΔλεΫͷ࣮ߦڥʹ……)
AWS CodeBuild - Jenkins Plugin͕͋Δ (AWSۘ) - https://github.com/awslabs/aws-codebuild-jenkins-plugin - JenkinsͰड͚ͨτϦΨͰCodeBuildΛൃՐͰ͖Δ
https://aws.amazon.com/jp/blogs/devops/simplify-your-jenkins-builds-with-aws-codebuild/
https://aws.amazon.com/jp/blogs/devops/simplify-your-jenkins-builds-with-aws-codebuild/
https://aws.amazon.com/jp/blogs/devops/simplify-your-jenkins-builds-with-aws-codebuild/ ࣮࣭ແݶʂʂʂʂ
ͨΒ͞ΕͨԸܙ - slave nodeͷϝϯςΒͣ - ΨϯΨϯฒྻϏϧυ͢Δͧʂʂʂ - ࣌ؒି͠ (= ͚ͬͨͩ)
ͷྉۚઃఆͳͷͰ ࣗͰΦʔτεέʔϧॲཧΛ͠ͳͯ͘Α͍
Jenkinsӡ༻ʹࡍͯ͠ग़͘Θ͢ - ฒྻ࣮ߦJobͷ૿Ճʹ͏ੑೳྼԽ - ߜΔͱbuildͪͷΩϡʔ͕٧·Δ͠…… - Slave nodeͷӡ༻େม͗͢Δ - Master
InstanceࢮͶͳ͍ - ͓ئ͍͠·͢ͷڪා (™ @kyanny)
Master Instance͕ਆ֨Խ͢Δ
Master Instanceਆ֨Խ - Jenkinsͷmaster datamasterϚγϯͷ*ϩʔΧϧετϨʔδ*ʹ อଘ͞ΕΔ - Πϯελϯε͕ࢮΜͩΒऴΘΓ - ͔͠͠ࢮආ͚ΒΕͳ͍
- ͔ͩΒόοΫΞοϓΛऔͬͨΓ͢Δ - e.g. https://papix.hatenablog.com/entry/2016/02/09/101918 - όοΫΞοϓ͔ΒͷϦετΞ࣮ࡍ໘ - ָ͍͠ࣄͰͳ͍…… - μϯλΠϜग़Δ͠……
Master Instanceਆ֨Խ - ݁Ռͱͯ͠ຖଉࡂΛفΔʑ…… - ӡѱ͘Πϯελϯε͕ࢮΜͩΒσΠϦʔόοΫΞοϓ ͔ΒϦετΞ - σΠϦʔόοΫΞοϓͱࢮ͵ؒࡍͱͷࠩʹ͍ͭͯ ఘΊΔ͔͠ແ͍……
͏͏……
զʑৎͰεέʔϧ͢Δ Jenkins͕΄͍͚ͩ͠ͳΜ͡Ό……
ͦΜͳͷ…… ͋Δʂʂʂ
ͦΜͳͷ…… ͋Δʂʂʂ
Amazon Elastic File System
AWS Elastic File System (EFS) - AmazonͷnfsΈ͍ͨͳͭ - Instanceʹmountͯ͠͏ -
EBS + nfsతͳ…… - ϘϦϡʔϜαΠζ͕ࣗಈͰ֦ுɾॖখ͢Δ - Disk fullΒͣͷੜ׆
AWS Elastic File System (EFS) - $JENKINS_HOMEΛEFSϘϦϡʔϜ্ʹ͢Δ - Πϯελϯε͕ࢮΜͰ৽͍͠Πϯελϯεʹ ͦͷϘϦϡʔϜΛϚϯτ͢Δ
- => ΠϯελϯεલੈͷهԱΛҾ͖ܧ͗෮׆ʂʂʂ
mount Working...
❌mount Instance down...
❌ New instance coming up...
❌ mount Works fine!!
AWS Elastic File System (EFS) - EBSͰྑ͍ͷͰʁ - ͍ʂɹEBSͷ΄͏͕͍҆͠ʂʂ -
ͨͩEFSϘϦϡʔϜࣗಈ֦ு͕خ͍͠ - (͏͔ͬΓdisk fullʹͳΒͳ͍) - ͋ͱEFSͩͱmulti masterΈ͍ͨͳ͜ͱͰ͖Δ (ޙड़)
Jenkins Multi Master - ଟͰ͖Δ (࣌ؒӡ༻ͯ͠ͳ͍) - ͔͠͠CodeBuildͱڞଘ͍ͯ͠ΔڥͰMulti Masterʹ͢Δ ϝϦοτ΄΅ͳ͘ͳ͍Ͱ͔͢ʁ
- σϓϩΠ࣌ʹҰॠ2masterΛཱ͓͍ͯͯͯɼݹ͍ํΛ ࡴ͢Έ͍ͨͳμϯλΠϜσϓϩΠ͚ͷ͍ํՄೳ
ͨΒ͞ΕͨԸܙ - ΧδϡΞϧʹΠϯελϯε͕ࢮΜͰ҆৺ʂ - ͱ͍͑όοΫΞοϓऔͬͯΔ - ݁Ռͱͯ͠ΠϯελϯεͷೖΕସָ͕͑ʹͳͬͨ - ετϨʔδࣗಈ֦ு͢ΔͷͰDisk fullΒͣ
Jenkinsӡ༻ʹࡍͯ͠ग़͘Θ͢ - ฒྻ࣮ߦJobͷ૿Ճʹ͏ੑೳྼԽ - ߜΔͱbuildͪͷΩϡʔ͕٧·Δ͠…… - Slave nodeͷӡ༻େม͗͢Δ - Master
InstanceࢮͶͳ͍ - ͓ئ͍͠·͢ͷڪා (™ @kyanny)
ࣾձ: Jenkins͓͡͞ΜͷͳΓखෆ
Jenkinsͷӡ༻Λ୭͔ʹԡ͚͠ΔͷΛΊΔ - ୭Ͱӡ༻Ͱ͖ΔΑ͏ʹ͢Δ - શਓຽJenkins͓͡͞Μ/͓͞ΜԽ - σϓϩΠϝϯςۃྗলྗԽ͢Δ
Jenkinsͷӡ༻Λ୭͔ʹԡ͚͠ΔͷΛΊΔ - Amazon Elastic Beanstalk + Docker - Dockerfile +
Dockerrun.aws.jsonʹΑΔߏͷίʔυԽ - .ebextensionsʹΑΔࣗಈԽ - EFS mountͳͲ - https://github.com/moznion/jenkins_eb_efs_codebuild_example
- Elastic Beanstalkͷmanaged updateͰࣗಈతʹύον͕ͨΔ - ͍ͭͰʹΠϯελϯεͷೖΕସ͑ߦΘΕΔ - EFSڥԼͳͷͰΠϯελϯεೖΕସָ͑ʑࣗಈԽ - جຊతʹӡ༻์ஔͯ͠·͢
- EFSͷϘϦϡʔϜࣗಈ֦ுͷύϫʔͰ͋Δ ͨΒ͞ΕͨԸܙ
·ͱΊ
·ͱΊ - JenkinsͷslaveϊʔυΛAWS CodeBuildʹҕৡ͢Δ͜ͱͰ࣮࣭ ແݶʹฒྻϏϧυ͕εέʔϧ͢ΔΑ͏ʹͳΓ·ͨ͠ - JenkinsͷετϨʔδΛEFSʹ͢Δ͜ͱͰϚελʔσʔλͷ ϩόετԽΛߦ͍·ͨ͠ - Elastic
BeanstalkΛ༻͍ͯJenkinsΛӡ༻͢Δ͜ͱͰӡ༻ͷ ίετԽΛ͠·ͨ͠ - Α͔ͬͨͰ͢Ͷ
Q?
Wait...
͜ͷJenkinsʹ͕͋Δ - EFS͍ʂʂʂʂʂ - Jenkins͕git clone͢ΔͱϚδ͔͔࣌ؒΓ·͢ - git cloneΛճආ͢Δํ๏͍·ͷͱ͜Ζແ͍…… -
shallow cloneΛ༗ޮʹ͏ - sparse checkoutΛ༗ޮʹ͏ - ͳͲͷ͕ඞཁ - ͦͦCodeBuild͕git clone͢ΔΜͩ͠jenkins͠ͳͯ͘ ྑ͍Μ͚ͩͲ…… - ͋Δ͍EBSΛ͏……
ຊʹJenkinsඞཁʁ - ͭ͡AWS CodeBuild࠷ۙΊͬͪΌͰ͖͕Αͯ͘ɼ ୯ମͰे͑Δ - GitHubͷhookड͚ΕΔ͠ - Commit statusΛม͑Δػೳ·Ͱ͍͍ͭͯΔ
- ϏϧυཤྺҰཡͰ͖Δ͠ - CloudWatch LogsʹϏϧυͷϩάग़Δ - JenkinsෆཁͰʁʁʁʁɹ͜ΕͰेͰʁʁʁʁ - ͍
ຊʹJenkinsඞཁʁ - ࣗ༝ͳWebhookΛड͚Δඞཁ͕͋Δͱ͔…… - ͋ͱ௨ͱ͔Ͷʂ - ͋Δ͍ͬͱଞʹϏϧυύΠϓϥΠϯΛܨ ͛Δඞཁ͕͋Δͱ͔…… - ͦ͏͍͏ͱ͖ΜΓͰ͢
- (͋ͱ·͋Ұཡੑ͕Α͍) (ॾઆ͋Γ·͢)
Q?