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Serverspec at JTF2014
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Gosuke Miyashita
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June 22, 2014
Technology
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Serverspec at JTF2014
Gosuke Miyashita
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June 22, 2014
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Transcript
ServerspecʹݟΔ ٕज़τϨϯυΛ ੜΈग़͢ώϯτ
ࣗݾհ 4 ٶԼ ߶ี 4 http://mizzy.org/ 4 mizzy@github 4 gosukenator@twitter
4 ϑϦʔϥϯεΤϯδχΞ/Serverspec Operations
ΞδΣϯμ 4 ࠷ۙͷΠϯϑϥܥٕज़τϨϯυ 4 Serverspecͱ 4 Serverspec͕ੜ·Εͨഎܠ 4 Serverspecͷೝ 4
ServerspecͷޭཁҼ 4 ·ͱΊ
࠷ۙͷΠϯϑϥؔ࿈ٕज़ τϨϯυৼΓฦΓ
: OS͔ΒϛυϧΣΞ ͱ͍ͬͨιϑτΣΞϨΠϠʔΛ ࢦ͢ݴ༿ͱͯ͠ͷΠϯϑϥͰ͢
Πϯϑϥؔ࿈ٕज़τϨϯυ 4 αʔόߏཧπʔϧ 4 Chefਓؾ 4 ࠓʹͳͬͯ4݄,5݄ͱཱͯଓ͚ʹॻ੶ൃץ 4 USͰ2014ʹPuppetͷγΣΞΛ͑ͨΒ͍͠ 4
Ansible 4 ChefͷΧϯλʔ
Πϯϑϥؔ࿈ٕज़τϨϯυʢ͖ͭͮʣ 4 ԾԽؔ࿈πʔϧ 4 Vagrant 4 Docker 4 ςετۦಈΠϯϑϥͱΠϯϑϥCI 4
Test Kitchen 4 Serverspec
Πϯϑϥؔ࿈ٕज़τϨϯυʢ͖ͭͮʣ 4 Immutable Infrastructure 4 Trash Your Servers and Burn
Your Code: Immutable Infrastructure and Disposable Components 4 WEB+DB PRESS Vol.81
ςετۦಈΠϯϑϥ ΠϯϑϥCI
None
ςετۦಈΠϯϑϥ/ΠϯϑϥCI 4 ΞϓϦέʔγϣϯ։ൃͷख๏ΛΠϯϑϥߏஙʹԠ༻ 4 @riywo͘Μ͕2012ʹΠϯϑϥCIʹ͍ͭͯॻ͍ͯΔ 4 http://blog.riywo.com/2012/05/27/145310 4 ࣗࣗߏ2007͙Β͍͔Β͋ͬͨ 4
ʮςετۦಈαʔόߏஙʯͱ͍͏ݴ༿Λߟ͍͑ͯͨ 4 http://d.hatena.ne.jp/dayflower/ 20070405/1175782564#c
ςετۦಈΠϯϑϥ/ΠϯϑϥCI 4 Ҏલ͔Β֓೦͋ͬͨͱ͍͑ʮΠϯϑϥΛςετՄೳʹ ͢Δʯͱ͍͏ੈքΛ͛ͨͷServerspec 4 ୯ʹςετՄೳʹ͢Δ͚ͩͰͳ͘ɺGitHub FlowʹΑΓ ΠϯϑϥมߋΛϓϧϦΫΤετ͠ɺCIαʔόʹΑΓܧଓత ʹςετ͢Δɺͱ͍͏ੈքΛ։͍ͨ
None
Serverspec
Serverspecͱ 4 20133݄ʹϦϦʔε 4 RSpecͰαʔόͷঢ়ଶΛςετ 4 ຊ࣭αʔόͷঢ়ଶΛهड़ͨ͠ίʔυΛςετ 4 PuppetϚχϑΣετChefϨγϐͳͲ 4
Πϯϑϥίʔυͷ։ൃϦϑΝΫλϦϯάΛޮྑ͘ߦ͏ ͨΊͷπʔϧ
ServerspecʹΑΔςετίʔυ describe package('nginx') do it { should be installed }
end describe service('nginx') do it { should be_enabled } it { should be_running } end
Serverspecͷεϖϧ 4 ਖ਼ 4 Serverspec/serverspec/SERVERSPEC 4 ޡ 4 ServerSpec/Server Spec
Serverspecͳͥ ੜ·Εͨͷ͔ʁ
ςετπʔϧ։ൃͷ͖͔͚ͬ 4 2006ʹPuppetΛ͍࢝Ίͨ 4 αʔόߏஙPuppetʹΑͬͯࣗಈԽͰ͖ͨ 4 ͡Ό͋࣍ߏஙޙͷνΣοΫΛࣗಈԽ͍ͨ͠ 4 ExcelνΣοΫγʔτͰͷࢹ֬ೝΊ͍ͨ
Assurer 4 2007ʹͭͬͨ͘PerlαʔόςετϑϨʔϜϫʔΫ 4 ϓϥάΠϯͰ֦ுՄೳ 4 PlaggerͷӨڹ 4 Filter, Format,
Notify, Publish, Test 4 make testͰςετΛ࣮ߦ/TAPܗࣜͰ݁Ռग़ྗ 4 CPAN AuthorͳͷͰPerlͰͷςετͷΓํΛ౿ऻ
AssurerͷഊҼ 4 Serverspecͱҧ͍ৼΔ͍Λςετ 4 ঢ়ଶͷςετΑΓཁ͕݅ෳࡶ 4 ཉுͬͯ৭ʑ٧ΊࠐΈ͗ͯ͢ߋʹෳࡶʹͳͬͨ 4 ϑΣʔζ͚/ϓϥΨϒϧ/ࢄॲཧ/γΣϧ 4
ίϯηϓτ͕Serverspec΄Ͳ໌֬Ͱͳ͔ͬͨ 4 ։ൃऀͰ͋Δࣗ͢ΒΘͳ͍ͷʹͳͬͨ
AssurerҎޙ 4 ࣌ʑࢥ͍ฦ͢͜ͱ͚͋ͬͨͲੵۃతʹԿ͔͠Α͏ͱ͠ ͳ͔ͬͨ 4 ݱ͔ΒएׯڑΛஔ͍͍ͯͯɺPuppetͳͲͦΜͳʹ৮ Βͳ͘ͳͬͨ
·ͨPuppet͞ΘΓ͡Ίͨ 4 ͕͔ࣗͭͯॻ͍ͨPuppetϚχϑΣετ͕ϨΨγʔίʔυ ʹͳ͍ͬͯͨ 4 ϦϑΝΫλϦϯάͨ͘͠ͳͬͨ 4 ϦϑΝΫλϦϯά͢ΔͳΒવςετ͕ඞཁͩ͠CIΓ ͍ͨ
Πϯϑϥςετͷલ४උ 4 ΠϯϑϥCIΖ͏ͱࢥͬͯɺ·ͣCIΛ࣮ߦ͢ΔڥΛ ͑ͨ 4 LXCίϯςφͰςετ͢ΔͨΊʹɺίϯςφΛͬ͘͞ͱͭ ͘ΕΔPuppetϚχϑΣετॻ͍ͨ 4 ͪΐ͏Ͳಉ͡λΠϛϯάͰDocker͕ग़͖ͯͯແ༻ͷ ʹͳͬͨ
ςετπʔϧ୳͠ 4 ڥॲ͕͍ͭͨͷͰ࣍ςετπʔϧ 4 ·ͣطଘͷͷͰΑ͛͞ͳͷ͕ͳ͍͔୳ͨ͠ 4 rspec-puppet͙Β͍͔͠PuppetͰ͑Δͷͳ͞ ͦ͏ 4 Chefपลͷํ͕ॆ࣮
4 ChefSpec, Test Kitchen, Cucumber-Chef, minitest-chef-handler
ࣗલͰͭ͘Δ͜ͱʹͨ͠ 4 ͨͩ͠rspec-puppet͖ͪΜͱϞδϡʔϧԽ͞Ε͍ͯͳ ͍ͱ͑ͳ͍ 4 ࣗͷϚχϑΣετϞδϡʔϧԽ͞Εͯͳ͍ϨϕϧͷϨ Ψγʔ͞ 4 rspec-puppet࣮ࡍͷαʔόͷঢ়ଶΛςετ͢ΔΘ͚ ͡Όͳ͍
4 ͡Ό͋ࣗͰ࡞Δ͔ɺͬͯ͜ͱʹ
Serverspecੜ 4 ࣌ͷಉ྅(@hiboma)͕LXCͷίϯςφΛςετ͢Δίʔ υΛRSpecͰॻ͍͍ͯͨ 4 Α͠ɺͦΕύΫͬͯ൚༻తʹ͑ΔΑ͏͠Α͏ 4 ϓϩτλΠϓΛҰͰͭ͘Γɺཌʹrubygems.orgͰ ެ։
ॳظͷServerspec 4 ࠷ॳRedHatܥLinuxͷΈରԠɺSSHόοΫΤϯυͷΈɻ ExecόοΫΤϯυͳ͔ͬͨɻ 4 @tkmr͞Μ͕ෳOSରԠͱDebianରԠͯ͘͠Εͨ 4 @raphink͞Μ͕όοΫΤϯυΓସ͑ରԠͯ͘͠Εͨ 4 ͜Μͳײ͡Ͱ৭ΜͳਓΛר͖ࠐΜͩ
Serverspecͦͷޙ 4 Star: 738, Fork: 149, Contributors: 69 4 ରԠOS૿͑ͨΓɺαϙʔτ͢Δػೳ૿͑ͨΓ
4 ݱࡏv2.0ʹ͚ͨ࡞ۀத 4 ΑΓ֦ு͘͢͢͠ΔͨΊͷϦϑΝΫλϦϯά͕ϝΠϯ
ຊʹ͘ ΘΕͯΔͷʁ
Serverspecͷೝ 4 Black Duck Open Source Rookies of the Year
2013 4 Docker, InfluxDB, AppiumͱฒΜͰड 4 Thought Works Technology Radar 2014 4 Provisioning Testingͷ߲ʹServerspecͷจࣈ͕ग़ ͯ͘Δ 4 rubygems.orgͰͷμϯϩʔυ30ສ 4 Chef͕400ສ
None
ࡶࢽʹ͓͚Δݴٴ 4 WEB+DB PRESS Vol.75 4 WEB+DB PRESS Vol.76 4
WEB+DB PRESS Vol.80 4 WEB+DB PRESS Vol.81
None
ॻ੶ʹ͓͚Δݴٴ 4 Test-Driven Infrastructure with Chef, 2nd Edition 4 Chef׆༻ΨΠυ
4 νʔϜ։ൃ࣮ફೖ 4 Chef࣮ફೖ 4 ύʔϑΣΫτRuby on Rails
None
None
None
None
None
ւ֎ͰͷԠ
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None
None
None
None
None
ͳͥServerspec ޭͨ͠ͷ͔ʁ
ೳಈతͳཁҼ
ผྖҬͰޭ͍ͯ͠ΔϓϥΫςΟε Λ࣋ͪࠐΉ 4 ιϑτΣΞ։ൃͷੈքͷϓϥΫςΟε 4 ςετۦಈ։ൃ 4 ܧଓతΠϯςάϨʔγϣϯ 4 ಉ͡༻ޠ͏ͱΠϝʔδ͍͢͠
4 ςετۦಈΠϯϑϥ/ΠϯϑϥCI
໊લॏཁ 4 Server + RSpecͱ͍͏ٿͳ໊લ 4 ໊લ͔ΒԿΛ͢Δͷͳͷ͔͕ྨਪ͍͢͠ 4 ͍֮͑͢
ӳޠυΩϡϝϯτ 4 ຊࠃ֎Ͱ͘ೝͯ͠Β͓͏ͱࢥͬͨΒɺ͜Εେ લఏ 4 READMEserverspec.orgͳͲ࠷ॳ͔ΒӳޠͰॻ͍ͨ
ϝδϟʔͳΩʔϫʔυ/ϓϩμΫτ ʹͷ͔ͬΔ 4 PuppetChefͱ͍ͬͨϫʔυΛࢄΓΊΔ 4 ࣮ࡍʹؔ࿈͢Δπʔϧͩ͠ 4 PuppetChefͷதͷਓʹरΘΕͯɺ൴Β͕πΠʔτ͢Δ ͜ͱͰ·ͬͨײ
υΩϡϝϯτͷΘ͔Γ͢͞ 4 ӳޠͰυΩϡϝϯτΛॻ͍ͯɺϝδϟʔͳϫʔυࢄΓΊ ͯϦʔνϟϏϦςΟߴΊΔ͚ͩͰ·ͩෆे 4 ͬ͟ͱࣼΊಡΈ͚ͨͩ͠ͰԿ͕Ͱ͖Δπʔϧͳͷ͔͙͢ʹ Θ͔ΔΑ͏ʹ͢Δͷ͕ॏཁ 4 ͙͢ʹΘ͔Βͳ͍ͱɺڵຯΛࣦͬͯ͞ΕɺೋͱΒ ͳ͍͔͠Εͳ͍
πʔϧࣗମͷγϯϓϧ͞ 4 υΩϡϝϯτΛΘ͔Γ͘͢͢ΔͨΊʹɺπʔϧͦͷ ͷ͕γϯϓϧͰΘ͔Γ͍͢ඞཁ͕͋Δ 4 ServerspecςετͷΈʹಛԽͨ͠ 4 ଞͷπʔϧʹ͋Δߏཧπʔϧͱͷ࿈ܞVMͷૢ࡞ ল͍ͨ 4
Ώ͑ʹγϯϓϧͰΘ͔Γ͍͢
γϯϓϧ͚ͩͲ֦ு͍͢͠ 4 جຊతͳػೳ͋·Γ૿͞ͳ͍ํ 4 ͨͩ͠ϓϩάϥϜΛॻ͍֦ͯுͯ͘͢͠͠Δ 4 ଞͷπʔϧͱΈ߹Θ͍ͤ͢ 4 UNIXֶ 4
Keep It Simple, Stupid
ଞπʔϧͱͷΈ߹Θͤ 4 busser-serverspec 4 beaker-rspec 4 vagrant-serverspec 4 sensu-community-plugins/plugins/serverspec
ΤʔδΣϯτϨε 4 ͍͘ΒศརͰɺαʔόʹ৭ʑೖΕΔͷݏͰ͢ΑͶʁ 4 ServerspecςετΛ࣮ߦ͢ΔϚγϯʹRuby͕͋ΕOK 4 ςετରͷϚγϯʹSSHͰΞΫηεͰ͖ΕOK 4 Ruby͢Βඞཁͳ͍
͏·ͰͷෑډΛԼ͛Δ 4 ServerspecRuby 1.8.7Ҏ߱Λαϙʔτ 4 RedHat 6ܥͷύοέʔδΠϯετʔϧͰೖΔRubyʹରԠ 4 ผ్RubyΛμϯϩʔυͯ͠ίϯύΠϧɺͳͲ͢Δඞ ཁ͕ͳ͍
4 serverspec-initίϚϯυ 4 ίϚϯυҰൃͰͻͳܗΛੜ͙ͯ͢͠ʹࢼͤΔ
ࣗҰਓͰΓ͗͢ͳ͍ 4 ͕ࣗ͏ػೳ͔͠جຊతʹ࣮͠ͳ͍ 4 γϯϓϧʹอͭ͏͑Ͱେࣄ 4 ཉ͍͠ػೳ͕͋ΕࣗͰ࣮ͯ͘͠Εɺͱ͍͏ελϯε 4 OSSͳͷͰ 4
݁Ռͱͯ͠ଟ͘ͷਓΛר͖ࠐΊͨ
ೳಈతཁҼ·ͱΊ 4 ଞྖҬͷϓϥΫςΟεΛ࣋ͪࠐΉ 4 ໊લυΩϡϝϯτॏཁ 4 ϝδϟʔͳϓϩμΫτʹ͔ͬΔ 4 γϯϓϧ͔֦ͭுՄೳ 4
͏ෑډΛԼ͛Δ 4 ଞऀΛר͖ࠐΉ
ٕज़τϨϯυཁҼ
αʔόߏཧπʔϧͷख़ 4 Puppetొ͔Β9 4 Chefొ͔Β5 4 ΈΜͳ͕ͦͷ࣍Λݟਾ͑ͩͨ͠
Vagrantͷීٴ 4 ςετΛ࣮ߦ͢ΔͨΊʹखݩͰVMΛಈ͔ͤΔํ͕ḿΔ 4 VagrantʹΑΓखݩͰςετίʔυΛॻ͍࣮ͯߦ͢Δڥ ͕ͭ͘Γ͘͢ͳͬͨ
Chefք۾ͰͷςετͷΓ্͕Γ 4 ݩʑChefք۾ͷਓͨͪςετʹର͢Δҙ͕ࣝߴ͔ͬͨ 4 ChefSpec, Test Kitchen, Cucumber-Chef, minitest- chef-handlerͳͲςετܥπʔϧChefք۾͕ॆ࣮
JenkinsCI as a Serviceͷීٴ 4 Jenkins͕։ൃͷੈքͰͨΓલͷΑ͏ʹΘΕ͍ͯΔ 4 CI as a
Serviceͷීٴ 4 Travis, CircleCI, Drone, WerckerͳͲ
GitHubͷීٴ 4 GitHubͰΠϯϑϥίʔυΛཧ 4 ϓϧϦΫΤετϕʔεͰมߋ 4 CI as a Serviceͱͷ࿈ܞ
4 ςετۦಈΠϯϑϥ/CIͱ૬ੑ͕ྑ͍
ٕज़τϨϯυཁҼ·ͱΊ 4 ߏཧ+ԾԽ+ςετ+CIͱ͍͏τϨϯυ 4 GitHub͕͜ͷτϨϯυΛߋʹޙԡ͠ 4 ԾԽɺߏཧɺCIʹ͍ͭͯఆ൪͕Ͱ͖ͯͨ 4 ςετπʔϧܾఆ൛͕ͳ͔ͬͨ 4
ͦ͜ʹServerspec͕·ͬͨ 4 ͦΕʹΑΓ͜ͷτϨϯυΛߋʹՃͤ͞Δ͜ͱʹͳͬͨ
·ͱΊ
ServerspecͷޭཁҼ 4 ଞྖҬͰޭ͍ͯ͠ΔϓϥΫςΟεΛ࣋ͪࠐΉ 4 ςετۦಈ։ൃ/ܧଓతΠϯςάϨʔγϣϯ 4 ࠷ॳ͔ΒීٴΛҙࣝͨ͠׆ಈ 4 ໊લɺυΩϡϝϯτɺϝδϟʔϓϩμΫτʹͷ͔ͬΔ 4
γϯϓϧ͔֦ͭுՄೳʹ 4 UNIXֶ/Keep It Simple, Stupid
ServerspecͷޭཁҼ 4 ͑ͯ伱Λͭͬͯ͘ਓΛר͖ࠐΉ 4 τϨϯυʹͷ͔ͬΔ 4 ߏཧ+ԾԽ+ςετ+CI 4 ςετπʔϧҎ֎ͷఆ൪طʹ͋ͬͨ 4
伱ؒΛຒΊͨͷ͕Serverspec
ServerspecͷޭཁҼ 4 Өڹྗͷ͋ΔਓʹϦʔν͢Δ 4 ࠃͰҏ౻ࢯͷϒϩάΤϯτϦࡶࢽهࣄͷӨڹ ͕େ͖ͦ͏
ServerspecͷޭཁҼ 4 ٕज़τϨϯυΛੜΉͱ͔ߟ͑ͳ͍ 4 ੜ͏ͱࢥͬͯੜΊΔͷͰͳ͍ 4 ͕ࣗཉ͍͠ͷɺ͓͠Ζ͍ͱࢥ͏ͷΛࣗͷͨΊʹ ͭ͘Δ 4 ਓྨͷٕज़ൃలͨΊͷແঈ։ൃɺͱ͍͏ελϯεͰ͍
͍ͷͰ͖ͳ͍
·ͱΊ 4 ٕज़τϨϯυΛੜΈग़ۙ͢ಓͳ͍ 4 গͳ͘ͱࣗΒͳ͍ 4 ͕ͨͩࣗཉ͍͠ͷɺ͓͠Ζ͍ͱ͓͏ͷΛͭ͘Δ/ ެ։͢Δ 4 ͦͷੵΈॏͶ͕ૉΒ͍͠ͷΛੜΉ͜ͱʹͭͳ͕Δ
4 ͕ࣗͭͬͯ͘ެ։ͨ͠ͷɺখ͞ͳͷؚΊͯ100 Ҏ্͋Δ
Shut the fuck up and write some code Openness is
our driver for excellence ೭ऀෆ೭ऀ೭ऀෆᒜ೭ऀ