GitHub Actionsはどのような未来を描くのか

GitHub Actionsはどのような未来を描くのか : コンテナ技術が開くワークフローのOSS化
昨年10月に、コンテナ技術をベースとした新しい機能、GitHub Actionsを発表しました。ソフトウェア開発がモダンに便利になっていく中で、実は多くの開発者が開発ワークフローの構築や設定に多くの時間を費やしているという現状があります。
GitHub Actionsは、コンテナ技術をうまく利用し、世界中の皆がワークフローに関わる問題を解決できることを目指して作られています。
本セッションでは、GitHub Actionsのデモを交えながら、GitHub Actionsをどのように利用できるのか、また新しいActionをどうやって作れるのか、またワークフローの開発そのものもプルリクエストベースで行えるということが何を意味するのか、明らかにしていきます。
その上で、GitHub Actionsによって我々開発者の世界がどう変わっていくのか、未来をお見せします。

Transcript

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2. GitHub Actions
   2019/02/14
   ikeike443
   Solutions Engineer, GitHub
   14-A-2
   #devsumiA
   

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3. a ikeike443
   Takafumi Ikeda
   Solutions Engineer
   

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4. 2008
   GitHub introduced…
   

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5. Pull Request
   

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11. ϫʔΫϑϩʔ͸ϞδϡϥʔԽ͞ΕΔ΂͖
    

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12. Actions
    

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13. Actions
    

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15. workflow "My Workflow" {
    on = "event"
    resolves = ["Action 2", "Action 3"]
    }
    action "Action 1" {
    uses = "user/repo@master"
    runs = "command"
    }
    action "Action 2" {
    uses = "docker://node:10-alpine"
    runs = "command"
    }
    action "Action 3" {
    needs = ["Action 1"]
    uses = ".github/actions/private.js"
    runs = "command"
    }
    

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17. check_run
    check_suite
    commit_comment
    create
    delete
    deployment
    deployment_status
    26
    available events
    

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18. project_column
    public
    pull_request
    pull_request_review_comment
    pull_request_review
    push
    repository_dispatch
    release

    status
    watch
    26
    available events
    

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19. GitHub Actionsͱ͸
    • ίϯςφٕज़ϕʔε
    • ϫʔΫϑϩʔ as Code
    • ϫʔΫϑϩʔͷϞδϡϥʔԽɺ࠶ར༻
    • Pull Requestʹଓ͘ਐԽͷ৮ഔ
    

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21. σϞ
    ࣮ࡍʹActionͱWorkflowΛ࡞ͬͯΈΑ͏ʂ
    

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22. Hello world
    

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23. खॱ
    • ActionΛ֨ೲ͢ΔϦϙδτϦΛ࡞੒
    • ActionΛDockerfileͱͯ͠ఆٛ
    • ΤϯτϦʔϙΠϯτͱͳΔγΣϧεΫϦϓτΛఆٛ
    • ఆٛͨ͠ActionΛݺͼग़͢ϫʔΫϑϩʔΛఆٛ
    • ࣮ߦ
    

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24. ϦϙδτϦͷ༻ҙ
    

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25. Hello World Actionͷఆٛ
    

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26. ΤϯτϦʔϙΠϯτγΣϧεΫϦϓτ
    

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29. Closer look
    ࠓݟͨ΋ͷͷղઆΛ͔Ͷͯ
    

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30. ݱঢ়ͷ࢓༷ɺ੍ݶͳͲ
    • ϫʔΫϑϩʔͷ࣮ߦ࣌ؒ͸Max58෼
    • ϫʔΫϑϩʔ1ͭʹ͖ͭΞΫγϣϯ͸100ݸ·Ͱݺͼग़͠Մೳ
    • 1ϑΝΠϧ಺ʹෳ਺ϫʔΫϑϩʔΛఆٛՄೳ͕ͩɺฒྻ࣮ߦ͞ΕΔͷ͸1Ϧ
    ϙ͋ͨΓ2ͭ·Ͱ
    • ΞΫγϣϯ͸ଞͷϫʔΫϑϩʔΛτϦΨʔͰ͖ͳ͍
    • APIίʔϧ͸1ϦϙδτϦ͋ͨΓτʔλϧͰ1࣌ؒ1000ճ·Ͱ
    

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31. ݱঢ়ͷ࢓༷ɺ੍ݶͳͲ
    • ϓϩμΫγϣϯͷSecretΛ֨ೲ͠ͳ͍͜ͱʢϕʔλத
    ͸ϩάʹͦͷ··ग़·͢ʣ
    • Action͸DockerfileͳͷͰDockerͰͰ͖Δ͜ͱ͸͍ͨͯ
    ͍Ͱ͖Δ͕ɺ੍ݶ͋Γ
    

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32. ݱঢ়ͷ࢓༷ɺ੍ݶͳͲ
    • Action࣮ߦ؀ڥʹ͍ͭͯ
    • 1 vcpu, 3.75 GB RAM
    • ωοτϫʔΫΞΫηεՄೳ
    • ϑΝΠϧγεςϜ΁ͷΞΫηεՄೳ
    • σΟεΫεϖʔε 100GB
    • ϫʔΫϑϩʔ಺Ͱڞ༗ͯ͠ΞΫηεͰ͖Δ
    • ؀ڥม਺ͷҾ͖౉͠Մೳ
    • ؀ڥม਺͸ϫʔΫϑϩʔ͝ͱͷίϯςΩετͰղऍ͞ΕΔ
    • GitHubʹΑͬͯ༧໿͞Ε͍ͯΔ؀ڥม਺͋Γ
    

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33. ݱঢ়ͷ࢓༷ɺ੍ݶͳͲ
    • Action࣮ߦ؀ڥʹ͍ͭͯ
    • Exit status:
    • 0: Success: ޙଓͷAction࣮ߦ
    • 78: Neutral: ޙଓ͸࣮ߦ͞Εͳ͍͕ɺCheck Suite͸Success͠ಘΔ
    • ্هҎ֎: Failure: ॲཧετοϓɺCheck Suite΋Fail
    

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34. υΩϡϝϯτΛਵ࣌ࢀরͷ͜ͱ
    • ϕʔλதͷͨΊɺͲΜͲΜ௥ه͞Ε͍ͯ·͢
    

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35. EKS΁ͷσϓϩΠ
    ίϯςφϕʔεσϓϩΠΛ࣮ࡍʹ૊ΜͰΈΑ͏
    

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36. actions/exmaple-aws
    https://github.com/actions/example-aws
    

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37. ϫʔΫϑϩʔͷΠϝʔδ
    • ϑΟʔνϟʔϒϥϯνͷ৔߹
    • Docker buildͯ͠ର৅αΠτͷDockerΠϝʔδΛ࡞੒
    • ࡞ͬͨΠϝʔδΛTag͚ͮ
    • ΠϝʔδΛDockerϨδετϦʢECRʣʹϓογϡɺొ࿥
    • ϓογϡͷલʹECR΁ϩάΠϯ͓ͯ͘͠
    

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38. ϫʔΫϑϩʔͷΠϝʔδ
    • Masterϒϥϯνͷ৔߹
    • લड़ʹՃ͑ͯɺ
    • k8sͷConfigΛΞοϓσʔτ (aws eks update-kubeconfig ͢Δ)
    • k8sͷΫϨσϯγϟϧΛઃఆ
    • ECRʹ֨ೲ͞Ε͍ͯΔΠϝʔδΛɺEKS΁σϓϩΠ
    • σϓϩΠ͞Εͨ͜ͱͷ֬ೝ
    • Expose͞ΕͨIPΞυϨεΛϦετ
    

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39. ࢖͏Action
    • DockerϏϧυɺϓογϡ
    • Docker Tag
    • ECR, EKSͷૢ࡞
    • ϒϥϯνϑΟϧλ
    • EKS΁ͷσϓϩΠ: kubectlϦύοέʔδ൛
    

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40. ϦϙδτϦߏ੒
    kubectlͷϦύοέʔδ൛
    aws-iam-authenticatorΛ௥Ճ͍ͯ͠Δ
    WorkflowϑΝΠϧ
    σϓϩΠର৅ΛϏϧυ͢ΔͨΊͷDockerfile
    k8sͷconfig.yml
    σϓϩΠର৅ͷWebαΠτ
    

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50. Callback?
    

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51. Repository Dispatch
    • ֎͔Β೚ҙʹτϦΨʔͰ͖ΔΠϕϯτ
    • ௕͍δϣϒͳͲΛ֎෦Ͱ࣮ߦɺOKͳΒ͜ͷΠϕϯτΛ
    ൃՐɺͳͲͷ࢖͍ํ͕Մೳ
    

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53. ͦͷ΄͔ͷΠϕϯτ
    • gollumʢWikiʣ
    • Vulnerability
    • Projectؔ࿈
    • Issue/Label/Milestoneؔ࿈
    • 26छྨ͋ΔΑ
    

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54. ActionΛ࡞Δͷ͸؆୯
    • جຊతʹ͸طଘͷπʔϧΛίϯςφԽ͢Δ͚ͩ
    • ͖Ε͍ʹ෦඼Խ͢Ε͹࠶ར༻͸͔ͳΓޮ͖΍͍͢
    

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55. ศརͳAction
    ͙͢ʹ໾ཱͪͦ͏ͳActionΛ঺հ
    

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56. ֤छΫϥ΢υActions
    • GCP, AWS, Azure, Heroku, Zeit, npm
    • https://github.com/actions ҎԼʹ͋Γ·͢
    

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57. actions/bin
    • جຊతͳ΋ͷΛఏڙ
    • bats
    • curl
    • debug
    • filter
    • sh
    • shellcheck
    

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58. HTTP client
    • HTTPie ϥούʔ
    • MarketplaceͰೖखՄ
    

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59. Add an issue reference
    • ϒϥϯν໊͔ΒIssueΛ
    ୳͠ग़ͯ͠ΫϩεϦϯΫ
    

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60. All in one project
    • Issue/PRΛৗʹProject΁
    ௥Ճ
    

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61. Delete merged branch
    • ϚʔδࡁΈϒϥϯν࡟আ
    • Probot app/ActionsͲͪΒ
    Ͱ΋ར༻Մೳ
    

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62. Ϧιʔε
    ͜ͷ΁ΜݟͯΈͯͶ
    

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63. https://github.com/actions
    

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64. GitHub Marketplace
    

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65. https://github.com/sdras/awesome-actions
    

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66. Community Forum
    https://github.community/t5/tag/actions/tg-p/board-id/api
    

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67. ·ͱΊ
    GitHub Actions͕ݟΔະདྷ
    

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68. ϫʔΫϑϩʔ͸ࣗ༝ʹͳΔ
    • ϫʔΫϑϩʔ͸ϞδϡϥʔԽ͞Ε
    • OSSͱͯ͠օͰ࡞Γ্͍͛ͯ͘΋ͷʹͳΔͰ͠ΐ͏
    • ιϑτ΢ΣΞ։ൃͷੈքʹ৽͍͠1ϖʔδΛ
    • Έͳ͞ΜͷࢀՃΛ଴͍ͬͯ·͢ʂ
    

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71. 8
    https://github.co.jp 1
    

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