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Yuichi Saito
September 28, 2018
Technology
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1.7k
Learn more about Admission Webhooks
kubernetes meetup #13
https://k8sjp.connpass.com/event/100842/
Yuichi Saito
September 28, 2018
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Transcript
©2018 Wantedly, Inc. Learn more about Admission Webhooks Kubernetes
meetup #13 Yuichi Saito @munisystem
©2018 Wantedly, Inc. "ENJTTJPO$POUSPMMFSͷ͓͞Β͍ "ENJTTJPO8FCIPPLTͱ ·ͱΊ Agenda
©2018 Wantedly, Inc. "ENJTTJPO$POUSPMMFSͷ͓͞Β͍
©2018 Wantedly, Inc. ۙʹ͋Δ"ENJTTJPO$POUSPMMFSͷྫ ଘࡏ͠ͳ͍OBNFTQBDFʹQPEΛ࡞ͬͯΈΔ
©2018 Wantedly, Inc. ۙʹ͋Δ"ENJTTJPO$POUSPMMFSͷྫ ଘࡏ͠ͳ͍OBNFTQBDFʹରͯ͠QPE࡞Δ͜ͱ͕Ͱ͖ͳ͍
©2018 Wantedly, Inc. ۙʹ͋Δ"ENJTTJPO$POUSPMMFSͷྫ ଘࡏ͠ͳ͍OBNFTQBDFʹରͯ͠QPE࡞Δ͜ͱ͕Ͱ͖ͳ͍ /BNFTQBDF-JGFDZDMF https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#namespacelifecycle
©2018 Wantedly, Inc. w ೝূೝՄͷ͋ͱɺ0CKFDU͕ӬଓԽ͢Δલʹ ΫϥΠΞϯτ͔ΒͷཁٻΛड͚ೖΕΔ͔ఆ͢ΔͨΊͷΈ w "ENJTTJPO$POUSPMMFSNVUBUJOHͱWBMJEBUJOHͷछྨ͕ଘࡏ͢Δ w NVUBUJOHΫϥΠΞϯτͷཁٻΛॻ͖͑Δ
w WBMJEBUJOHΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ͔Ͳ͏͔Λஅ͢Δ "ENJTTJPO$POUSPMMFSͱ
©2018 Wantedly, Inc. "ENJTTJPO$POUSPMMFSͱ https://kubernetes.io/docs/reference/access-authn-authz/controlling-access/
©2018 Wantedly, Inc. w ೝূೝՄͷ͋ͱɺ0CKFDU͕ӬଓԽ͢Δલʹ ΫϥΠΞϯτ͔ΒͷཁٻΛΤΫηϓτ͢ΔͨΊͷΈ w "ENJTTJPO$POUSPMMFSNVUBUJOHͱWBMJEBUJOHͷछྨ͕ଘࡏ͢Δ w NVUBUJOHΫϥΠΞϯτͷཁٻΛॻ͖͑Δ
w WBMJEBUJOHΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ͔Ͳ͏͔Λஅ͢Δ "ENJTTJPO$POUSPMMFSͱ
©2018 Wantedly, Inc. ΫϥΠΞϯτͷཁٻΛॻ͖͑Δ͜ͱͰɺϚχϑΣετʹॻ͔ͣͱҎԼͷ͜ͱ͕ߦ͑Δ w ҙͷBOOPUBUJPOMBCFMΛ༩͢Δ w ΞϓϦέʔγϣϯͷڥมʹҙͷσʔλΛຒΊࠐΊΔ w QPEͷલ໘ʹQSPYZΛஔ͘
w ΠϝʔδΛॻ͖͑Δ w FUD "ENJTTJPO$POUSPMMFSͱ
©2018 Wantedly, Inc. w ೝূೝՄͷ͋ͱɺ0CKFDU͕ӬଓԽ͢Δલʹ ΫϥΠΞϯτ͔ΒͷཁٻΛΤΫηϓτ͢ΔͨΊͷΈ w "ENJTTJPO$POUSPMMFSNVUBUJOHͱWBMJEBUJOHͷछྨ͕ଘࡏ͢Δ w NVUBUJOHΫϥΠΞϯτͷཁٻΛॻ͖͑Δ
w WBMJEBUJOHΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ͔Ͳ͏͔Λஅ͢Δ "ENJTTJPO$POUSPMMFSͱ
©2018 Wantedly, Inc. ΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ͔Ͳ͏͔ͷஅΛҎԼͷใ͔Βߦ͑Δ w ϚχϑΣετͷ༰ w ΫϥΠΞϯτͷΞΧϯτϩʔϧͷछྨ w ֎෦αʔϏεͱͷ࿈ܞ
w FUD "ENJTTJPO$POUSPMMFSͱ
©2018 Wantedly, Inc. w ೝূೝՄͷ͋ͱɺ0CKFDU͕ӬଓԽ͢Δલʹ ΫϥΠΞϯτ͔ΒͷཁٻΛΤΫηϓτ͢ΔͨΊͷΈ w "ENJTTJPO$POUSPMMFSNVUBUJOHͱWBMJEBUJOHͷछྨ͕ଘࡏ͢Δ w NVUBUJOHΫϥΠΞϯτͷཁٻΛॻ͖͑Δ
w WBMJEBUJOHΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ͔Ͳ͏͔Λஅ͢Δ "ENJTTJPO$POUSPMMFSͱ ෳࡶͳΦϖϨʔγϣϯػೳΛ,VCFSOFUFT෦Ͱ࣮ݱͰ͖Δ
©2018 Wantedly, Inc. "ENJTTJPO8FCIPPLTͱ
©2018 Wantedly, Inc. w Wd͔Βαϙʔτ͞Εͨ"ENJTTJPO$POUSPMMFSΛ֦ு͢ΔͨΊͷػೳ CFUB w BENJTTJPOQMVHJOTͰҎԼΛ༗ޮʹ͢Δ͜ͱͰར༻͕ՄೳʹͳΔ w
.VUBUJOH"ENJTTJPO8FCIPPL w 7BMJEBUJOH"ENJTTJPO8FCIPPL w Ͳ͜ͰΘΕ͍ͯΔʁ w *TUJP͕TJEFDBSͱͯ͠FOWPZΛEFQMPZ͢Δ࣌ʹར༻͍ͯ͠Δ w SFGIUUQTHJUIVCDPNJTUJPJTUJPCMPCNBTUFSQJMPUQLHLVCFJOKFDUXFCIPPLHP "ENJTTJPO8FCIPPLTͱ
©2018 Wantedly, Inc. "ENJTTJPO8FCIPPLT0WFSWJFX https://kubernetes.io/blog/2018/01/extensible-admission-is-beta/
©2018 Wantedly, Inc. w LVCFBQJTFSWFSʹ$BMMCBDLઌͱͯ͠)551TFSWFSΛొ͢Δ͜ͱͰɺ ͦ͜ʹ"ENJTTJPO3FRVFTU͕ඈΜͰ͘ΔΑ͏ʹͳΔ w 7BMJEBUJOH8FCIPPL$POpHVSBUJPO0CKFDU w .VUBUJOH8FCIPPL$POpHVSBUJPO0CKFDU
w "ENJTTJPO3FRVFTUʹର͠ฦ͢Δ3FTQPOTFͷܗࣜʹΑͬͯ "ENJTTJPO$POUSPMΛ࣮ݱ͢Δ "ENJTTJPO8FCIPPLTͱ
©2018 Wantedly, Inc. w LVCFBQJTFSWFSʹ$BMMCBDLઌͱͯ͠)551TFSWFSΛొ͢Δ͜ͱͰɺ ͦ͜ʹ"ENJTTJPO3FRVFTU͕ඈΜͰ͘ΔΑ͏ʹͳΔ w 7BMJEBUJOH8FCIPPL$POpHVSBUJPO0CKFDU w .VUBUJOH8FCIPPL$POpHVSBUJPO0CKFDU
w "ENJTTJPO3FRVFTUʹର͠ฦ͢Δ3FTQPOTFͷܗࣜʹΑͬͯ "ENJTTJPO$POUSPMΛ࣮ݱ͢Δ "ENJTTJPO8FCIPPLTͱ
©2018 Wantedly, Inc. "ENJTTJPO8FCIPPLTͷઃఆ 7BMJEBUJOH8FCIPPLTͷྫ ͜ͷઃఆͩͱ w ݅ w $MJFOU͔Βͷཁٻ͕
BQJ7FSTJPOWͷQPEͷ$3&"5&ͷ߹ w Ͳ͜ʹ w EFGBVMUOBNFTQBDFͷ FYBNQMFIPPLTFSWFSTFSWJDFͷ BENJUQPETʹରͯ͠ w ͳʹ͕ w 7BMJEBUJOHͷͨΊͷ"ENJTTJPO3FRVFTU ͕ૹΒΕͯ͘ΔΑ͏ʹͳΔ
©2018 Wantedly, Inc. w LVCFBQJTFSWFSʹ$BMMCBDLઌͱͯ͠)551TFSWFSΛొ͢Δ͜ͱͰɺ ͦ͜ʹ"ENJTTJPO3FRVFTU͕ඈΜͰ͘ΔΑ͏ʹͳΔ w 7BMJEBUJOH8FCIPPL$POpHVSBUJPO0CKFDU w .VUBUJOH8FCIPPL$POpHVSBUJPO0CKFDU
w "ENJTTJPO3FRVFTUʹର͠ฦ͢Δ3FTQPOTFͷܗࣜʹΑͬͯ "ENJTTJPO$POUSPMΛ࣮ݱ͢Δ "ENJTTJPO8FCIPPLTͱ
©2018 Wantedly, Inc. γϯϓϧͳ"ENJTTJPO8FCIPPLTͷྫ
©2018 Wantedly, Inc. γϯϓϧͳ"ENJTTJPO8FCIPPLTͷྫ
©2018 Wantedly, Inc. γϯϓϧͳ"ENJTTJPO8FCIPPLTͷྫ QPEͷ࡞͕ඞࣦͣഊ͢Δ
©2018 Wantedly, Inc. w "ENJTTJPO8FCIPPLT,VCFSOFUFTΛΧελϚΠζ͢ΔΈ w ͜ΕΛ͔ͭ͏͜ͱͰ,VCFSOFUFTʹෳࡶͳΦϖϨʔγϣϯΛ࣮ݱͰ͖Δ w ΫϥΠΞϯτͷཁٻΛड͚ೖΕΔ w
ΫϥΠΞϯτͷཁٻΛॻ͖͑Δ w /05ۜͷؙ w ͝ར༻ܭըతʹ ·ͱΊ