Kubernetes the hard way revisited 〜ゼロダウンタイムクラスタ移行から学ぶクラスタ構築の仕組み〜

-:$PSQPSBUJPO -*/&Ϡϑʔגࣜձࣾ ޒ൓ాਖ਼ଠ࿠ ,VCFSOFUFTUIFIBSEXBZSFWJTJUFE ʙθϩμ΢ϯλΠϜΫϥελҠߦ͔ΒֶͿΫϥελߏஙͷ࢓૊Έʙ

-:$PSQPSBUJPO • ޒ൓ా ਖ਼ଠ࿠ ˏTHPUBOE • -*/&Ϡϑʔגࣜձࣾ ιϑτ΢ΣΞΤϯδχΞ • ϓϥΠϕʔτΫϥ΢υ7FSEBͷ,BB4։ൃʹैࣄ
• ೥-*/&גࣜձࣾ ౰࣌ ʹೖࣾɺҎདྷݱ৬ • ,VCFDPO /"Ͱొஃ • “Leveraging Cluster-API for Production-Ready Multi-Regional Infrastructures” ࣗݾ঺հ

-:$PSQPSBUJPO ,VCFSOFUFTUIFIBSEXBZSFWJTJUFEʙθϩμ΢ϯλΠϜΫϥελҠߦ͔ΒֶͿΫϥελߏஙͷ࢓૊Έʙ ຊϓϨθϯ͔Βֶ΂Δ͜ͱ • ,VCFSOFUFTΫϥελͷجຊߏ଄ͱٕज़ཁૉ • ΫϥελΛແఀࢭͰҠߦ͢ΔͨΊͷέʔεελσΟ

-:$PSQPSBUJPO ࣭໰ ,VCFSOFUFTΫϥελʔ࡞ͬͨ͜ͱ͋Γ·͔͢ʁ

-:$PSQPSBUJPO • ύϒϦοΫΫϥ΢υ&,4 (,& ",4 • اۀ޲͚੡඼3FE)BU 0QFOTIJGU 7.XBSF5BO[V •
ΦϯϓϨϛε,VCFBEN ,VCFTQSBZ LPQT LJOE .JOJLVCF • ͦͷଞ,VCFSFOFUFT UIF )BSE 8BZ ,VCFSOFUFTσΟετϦϏϡʔγϣϯ

-:$PSQPSBUJPO • 7FSEB0QFOTUBDL ϕʔεͷࣾ಺Ϋϥ΢υ • 7FSEB ,VCFSOFUFT4FSWJDF 7,4 • ॳظ͸3BODIFSΛGPMLͯ͠։ൃ
• ݱࡏ $MVTUFS"1* ,VCFBEN ΁ͱҠߦத 7FSEBͰͷ,VCFSOFUFTσΟετϦϏϡʔγϣϯ ˞ຊεϥΠυͰ3BODIFSͱݴٴ͢Δࡍ͸ɺ'PSLͨ͠΋ͷΛࢦ͠·͢ɻΞοϓετϦʔϜͱҰகੑ͸อূ͠·ͤΜ

-:$PSQPSBUJPO • ӡ༻ऀࢹ఺ • ෳ਺ͷσΟετϦϏϡʔγϣϯΛ؅ཧ͢Δͷ͸ਏ͍ • ΫϥελͷҠߦΛਐΊ͍ͨ • ར༻ऀࢹ఺ •
طଘͷΫϥελΛ࢖͍ଓ͚͍ͨ • ΫϥελΛ࡞Γ௚ͨ͘͠ͳ͍ • ໨ඪطଘͷΫϥελΛಈ͔ͨ͠··Ҡߦ͢Δ 3BODIFS͔Β$MVTUFS"1*,VCFBEN΁ͷҠߦ

-:$PSQPSBUJPO ,VCFSOFUFT UIF )BSE 8BZ

-:$PSQPSBUJPO • ֶश༻σΟετϦϏϡʔγϣϯ • ֤ίϯϙʔωϯτΛखಈͰઃఆɾߏங • FUDE • LVCFBQJTFSWFS •
LVCFDPOUSPMMFSNBOBHFS • LVCFTDIFEVMFS • LVCFMFU • LVCFQSPYZ ,VCFSOFUFTUIFIBSEXBZͱ͸ https://github.com/kelseyhightower/kubernetes-the-hard-way

-:$PSQPSBUJPO • Ϋϥ΢υϦιʔε࡞੒ • $POUSPM1MBOF༻7. • ,VCFSOFUFT"1*༻ *1ΞυϨε • 8PSLFS༻7.
• ʜ • ຊՈ͸($1͕ͩɺ೿ੜ൛΋͋Δ • "84 • MJCWJSULWN • ʜ ,5)8෮शɿϦιʔεͷ࡞੒ IP address for apiserver VM VM worker-* (VM) https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/03-compute-resources.md VM VM controller-* (VM)

-:$PSQPSBUJPO • 5-4ɺΩʔϖΞͷੜ੒ • $"ূ໌ॻɾൿີݤ • αʔόʔূ໌ॻɾൿີݤ • ΫϥΠΞϯτূ໌ॻɾൿີݤ •
4FSWJDF"DDPVOU༻ΩʔϖΞ • ֤ϊʔυʹ഑෍ ,5)8෮शɿূ໌ॻΩʔϖΞͷੜ੒ɾ഑෍ https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/04-certificate-authority.md controller-* (VM) worker-* (VM)

-:$PSQPSBUJPO • ,VCFDPOGJHͷੜ੒ • ҎԼΛؚΉ • $"ূ໌ॻ • ΫϥΠΞϯτূ໌ॻɾൿີݤ •
"1*4FSWFSͷΤϯυϙΠϯτ ,5)8෮शɿ,VCFDPOGJHͷੜ੒ɾ഑෍ https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/05-kubernetes-configuration-files.md

-:$PSQPSBUJPO • &UDE όΠφϦͷ഑ஔ • ઃఆϑΝΠϧʢTZTUFNEʣͷੜ੒ • $" 5-4ূ໌ॻ •
ॳظͷϝϯόͷΞυϨε • ҉߸Խ • ʜ • &UDEαʔϏεͷىಈ ,5)8෮शɿ&UDE Ϋϥελͷߏங controller-1 (VM) controller-2 (VM) controller-0 (VM) https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/07-bootstrapping-etcd.md

-:$PSQPSBUJPO • όΠφϦͷ഑ஔ • LVCFBQJTFSWFS • LVCFDPOUSPMMFSNBOBHFS • LVCFTDIFEVMFS •
ઃఆϑΝΠϧʢTZTUFNEʣͷੜ੒ • $" 5-4ূ໌ॻɾൿີݤ • 1&. • LVCFDPOGJH • ΤϯυϙΠϯτ • FUDEˡˠFUDE • LVCFBQJTFSWFSˠFUDE • LVCFTDIFEVMFSˠLVCFBQJTFSWFS • LVCFDPOUSPMMFSNBOBHFSˠLVCFBQJTFSWFS • ֤αʔϏεͷىಈ ,5)8෮शɿ$POUSPM1MBOFͷىಈ https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/08-bootstrapping-kubernetes-controllers.md controller-* (VM)

-:$PSQPSBUJPO • ্ཱ͕ͪͬͨLVCFBQJTFSWFSʹରͯ͠ -PBE#BMBODFSΛ઀ଓ • ࣄલ֬อͨ͠ *1ΞυϨεΛ෇༩ • ,VCFDPOGJHʹࢦఆͨ͠΋ͷ
,5)8෮शɿ-#ͷ઀ଓ https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/08-bootstrapping-kubernetes-controllers.md ce2(VM) ce3(VM) ce1(VM) LoadBalancer

-:$PSQPSBUJPO • ϗετͷઃఆ • TXBQPGG • ίϯϙʔωϯτͷΠϯετʔϧ • DPOUBJOFSE $/*QMVHJO
,VCFMFU LVCFQSPYZ • ઃఆϑΝΠϧੜ੒ • 4ZTUFNE 6OJUͷىಈ ϫʔΧʔϊʔυͷߏஙɾ௥Ճ Worker1 (VM) Worker2 (VM) Worker3 (VM) hSps://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/09-bootstrapping-kubernetes-workers.md

-:$PSQPSBUJPO ,VCFSOFUFTUIFIBSEXBZ͕ڭ͑ͯ͘Εͨ͜ͱ ,VCFSOFUFTUIFIBSEXBZSFWJTJUFE ֤ίϯϙʔωϯτ͸खಈͰ΋ઃఆͰ͖Δ ֤σΟετϦϏϡʔγϣϯ͸ࣗಈԽͯ͠Δ͚ͩ ˣ ઃఆΛௐ੔͢Ε͹ΠϯετʔϥΛҠߦͰ͖ΔͷͰ͸ʁ

-:$PSQPSBUJPO 3BODIFS͔Β$MVTUFS"1*,VCFBEN ΁ͷΫϥελҠߦ

-:$PSQPSBUJPO • ҟͳΔόʔδϣϯͷίϯϙʔωϯτ΁ߋ৽ • ྫWˠW • ϊʔυΛ̍ͭͣͭೖΕସ͑ • ࠷ऴతʹશͯͷϊʔυɾίϯϙʔωϯτΛߋ৽
ࢀߟࣄྫΫϥελΞοϓάϨʔυ v1.27 v1.27 v1.27 v1.28 v1.27 v1.27 v1.28 v1.28 v1.27 v1.28 v1.28 v1.28

-:$PSQPSBUJPO • ҟͳΔઃఆͷίϯϙʔωϯτ΁ߋ৽ • 3BODIFS SLF ˠ,VCFBEN • ϊʔυΛ̍ͭͣͭೖΕସ͑ •
࠷ऴతʹશͯͷϊʔυɾίϯϙʔωϯτΛߋ৽ ઓུɿϊʔυΛͭͣͭೖΕସ͑Δ

-:$PSQPSBUJPO ݹ͍Ϋϥελ 3BODIFS3,& ʹ,VCFBENͰ/PEFΛ+PJOͤ͞Δ ͸͡ΊͷҰาɿ8PSLFS/PEFΛ௥Ճ͢Δ Join

-:$PSQPSBUJPO ,VCFBEN +PJO LVCFBEN KPJODPOGJHSVOLVCFBENLVCFBENKPJODPOGJHZBNM

-:$PSQPSBUJPO • ,VCF "1*4FSWFSͷΤϯυϙΠϯτ • $"ͷϋογϡ஋ • ೝূ༻ͷ#PPUTUSBQτʔΫϯ ,VCFBEN
+PJOͷͨΊʹ

-:$PSQPSBUJPO ,VCFMFU͔Β"1*4FSWFS΁ͷ઀ଓ LB چߏ੒ʢ3BODIFSʣ ৽ߏ੒ʢ,VCFBENʣ worker worker mycluster.example.com

-:$PSQPSBUJPO • "1*4FSWFSʹରͯ͠-#Λ࡞੒ • ,VCFSOFUFT UIF IBSEXBZͱಉ͡ʂ • ৽ߏ੒ʹ߹ΘͤͯυϝΠϯ໊Λ෇༩ •
NZDMVTUFSFYBNQMFDPN • ˠ઀ଓΤϥʔ -#Λ࡞Ε͹ղܾʁ LB worker چߏ੒ʢ3BODIFSʣվ mycluster.example.com

-:$PSQPSBUJPO 5-4ূ໌ॻͷ4"/ͷमਖ਼ • 5-4Ͱ͸4"/ʹ͋ΔυϝΠϯ໊ͷΈ௨৴Մ • 4"/4VCKFDU"MUFSOBUJWF/BNF • ͦ͏Ͱͳ͍ͱݕূΤϥʔͱͳΔ ˣ
• ৽ߏ੒ʹԊͬͨυϝΠϯ໊Λ4"/΁௥Ճ • 5-4ূ໌ॻͷߋ৽͸طଘػೳͰ࣮ݱ

-:$PSQPSBUJPO • ,VCF "1*4FSWFSͷΤϯυϙΠϯτˡ-#ɾυϝΠϯ࡞੒ˍ4"/ͷमਖ਼ • $"ͷϋογϡ஋ˡ • ೝূ༻ͷ#PPUTUSBQτʔΫϯ ,VCFBEN
+PJOͷͨΊʹ

-:$PSQPSBUJPO • ,VCFSOFUFTͰ͸௨৴ͷ҉߸ԽͷͨΊʹ5-4௨৴Λ׆༻ • ݪଇɺڞ௨ͷ$"Λ༻͍ͯαʔόʔΫϥΠΞϯτূ໌ॻΛੜ੒ • ࣄલʹ഑෍͞Εͨ$"ূ໌ॻΛ༻͍ͯ௨৴Λݕূ • ֤OBNFTQBDFʹLVCFSPPUDBDSU $POGJH.BQͱͯ͠഑෍͞Ε͍ͯΔ
• ˢ͜ΕΛ༻͍ͯLVCFBEN༻ʹ$"ͷϋογϡ஋Λੜ੒ ,VCFSOFUFTͱ$"ূ໌ॻ

-:$PSQPSBUJPO • ,VCF "1*4FSWFSͷΤϯυϙΠϯτˡ-#ɾυϝΠϯ࡞੒ˍ4"/ͷमਖ਼ • $"ͷϋογϡ஋ ˡLVCFSPPUDBDSU$POGJH.BQ͔Βੜ੒ • ೝূ༻ͷ#PPUTUSBQτʔΫϯ ˡ
,VCFBEN +PJOͷͨΊʹ

-:$PSQPSBUJPO • Ϋϥελͷ࡞੒΍ϊʔυͷ௥Ճ༻ʹ༻ҙ͞Ε͍ͯΔೝূํࣜͷͨΊͷτʔΫϯ • BCDEFGBCDEFGͷΑ͏ͳܗࣜ • CPPUTUSBQLVCFSOFUFTJPUPLFO ܕͷ4FDSFUͱͯ͠؅ཧ • ҎԼͷϑϥάΛઃఆͯ͠༗ޮԽ
• LVCFBQJTFSWFSFOBCMFCPPUTUSBQUPLFOBVUI • LVCFDPOUSPMMFSNBOBHFS DPOUSPMMFST UPLFODMFBOFS CPPUTUSBQTJHOFS #PPUTUSBQτʔΫϯͱ͸ https://kubernetes.io/docs/reference/access-authn-authz/bootstrap-tokens/

-:$PSQPSBUJPO • LVCFBEN UPLFODSFBUFίϚϯυͰ࡞੒Մ • ಺෦తʹ͸4FDSFUΛ࡞੒͍ͯ͠Δ͚ͩ • ˠLVCFBENҎ֎Ͱ΋൚༻తʹར༻Ͱ͖Δ #PPUTUSBQτʔΫϯͷੜ੒
https://kubernetes.io/docs/reference/access-authn-authz/bootstrap-tokens/

-:$PSQPSBUJPO • ,VCF "1*4FSWFSͷΤϯυϙΠϯτˡ-#ɾυϝΠϯ࡞੒ˍ4"/ͷमਖ਼ • $"ͷϋογϡ஋ ˡLVCFSPPUDBDSU$POGJH.BQ͔Βੜ੒ • ೝূ༻ͷ#PPUTUSBQτʔΫϯ ˡ༗ޮԽˍLVCFBEN
UPLFODSFBUF ,VCFBEN +PJOͷͨΊʹ

-:$PSQPSBUJPO ,VCFBEN +PJO LVCFBEN KPJODPOpHSVOLVCFBENLVCFBENKPJODPOpHZBNM

-:$PSQPSBUJPO ,VCFBEN +PJO ࣦഊʜ

-:$PSQPSBUJPO • 3#"$ͷઃఆ࿙Ε • 5-4#PPUTUSBQQJOH • ֤छઃఆ༻ͷ$POGJH.BQ • ʜ
࢒Δ໰୊

-:$PSQPSBUJPO • #PPUTUSBQ τʔΫϯͰೝূͰ͖Δ͚ͩͰ͸ಈ͔ͳ͍ • ೝՄઃఆ΋ඞཁ • /PEFҰཡͷऔಘ • $43ؔ࿈
3#"$ͷઃఆ

-:$PSQPSBUJPO ,VCFBENͷ3#"$ੜ੒ίʔυ IUUQTHJUIVCDPNLVCFSOFUFTLVCFSOFUFTCMPCNBTUFSDNE LVCFBENBQQDNEQIBTFTJOJUCPPUTUSBQUPLFOHP

-:$PSQPSBUJPO • 3#"$ͷઃఆ࿙Εˡ,VCFBENΛࢀߟʹ3PMFCJOEJOH౳࡞੒ • 5-4#PPUTUSBQQJOH • ֤छઃఆ༻ͷ$POGJH.BQʜ ࢒Δ໰୊

-:$PSQPSBUJPO • ,VCFMFU͸ΫϥΠΞϯτূ໌ॻΛ༻͍ͯ"1*4FSWFSͱN5-4Ͱ௨৴ • #PPUTUSBQUPLFO͸ىಈ࣌ͷΈ࢖༻ • ΫϥΠΞϯτূ໌ॻ͸$43"1*Λ༻͍ͯLVCFMFUࣗ਎Ͱੜ੒Մೳ • $43 $FSUJGJDBUF
4JHOJOH 3FRVFTU • ,5)8Ͱ͸खಈͰੜ੒ • ैདྷΫϥελͰ͸༗ޮʹͳ͍ͬͯͳ͔ͬͨ • ,VCFBEN޲͚ʹ༗ޮԽ • LVCFDPOUSPMMFSNBOBHFSDMVTUFSTJHOJOHLFZGJMF DMVTUFSTJHOJOHDFSUGJMF $43ͱ,VCFMFUͷ5-4#PPUTUSBQQJOH https://kubernetes.io/docs/reference/access-authn-authz/kubelet-tls-bootstrapping/

-:$PSQPSBUJPO • 3#"$ͷઃఆ࿙Εˡ,VCFBENΛࢀߟʹ3PMFCJOEJOH౳࡞੒ • 5-4#PPUTUSBQQJOHˡ$43ͷ༗ޮԽ • ֤छઃఆ༻ͷ$POGJH.BQ • ʜ
࢒Δ໰୊

-:$PSQPSBUJPO ,VCFBENͷઃఆ؅ཧ • ઃఆϑΝΠϧΛ$POGJH.BQͱͯ͠؅ཧ • LVCFBENDPOGJH • LVCFMFUDPOGJH • LVCFQSPYZ
• طଘΫϥελͷઃఆΛݩʹੜ੒ ,VCFBENʹ͓͚Δઃఆ؅ཧ

-:$PSQPSBUJPO • 3#"$ͷઃఆ࿙Εˡ,VCFBENΛࢀߟʹ3PMFCJOEJOH౳࡞੒ • 5-4#PPUTUSBQQJOHˡ$43ͷ༗ޮԽ • ֤छઃఆ༻ͷ$POGJH.BQˡطଘΫϥελͷઃఆΛݩʹੜ੒ • ʜ
࢒Δ໰୊

-:$PSQPSBUJPO • ,VCFBEN KPJO༻ͷઃఆϑΝΠϧ४උ • apiserver endpoint • CA ハッシュ
• Bootstrapトークン • ͦͷଞඞཁͳௐ੔ • RBAC • Certificate Signing Request API • 設定⽤ConfigMap • … ·ͱΊɿ8PSLFS/PEF௥Ճʹඞཁͳमਖ਼

-:$PSQPSBUJPO • ҟͳΔઃఆͷίϯϙʔωϯτ΁ߋ৽ • 3BODIFS SLF ˠ,VCFBEN • ϊʔυΛ̍ͭͣͭೖΕସ͑ •
࠷ऴతʹશͯͷϊʔυɾίϯϙʔωϯτΛߋ৽ ઓུɿϊʔυΛͭͣͭೖΕସ͑Δ ࠶ܝ

-:$PSQPSBUJPO $POUSPM1MBOFϊʔυΛೖΕସ͑Δʹ͸ʁ Control Plane Worker Control Plane Control Plane
Worker Worker

-:$PSQPSBUJPO • ൿີݤɾূ໌ॻͷෳ੡ • FUDEͷϝϯόʔ؅ཧ • ʜ $POUSPM1MBOFϊʔυ௥Ճͷ՝୊

-:$PSQPSBUJPO • σϑΥϧτಈ࡞Ͱ͸ ,VCFBENࣗ਎͕ূ໌ॻɾൿີݤΛੜ੒ • ࢦఆύεʹ഑ஔ͢Δ͜ͱͰ$"ূ໌ॻ౳Λ౉͢͜ͱ͕Ͱ͖Δ • طଘΫϥελ޲͚ͷূ໌ॻɾൿີݤΛίϐʔ • σΟετϦϏϡʔγϣϯຖʹ؅ཧํ๏͕ҟͳΔ
• $MVTUFS"1*Ͱ͸.BOBHFNFOU$MVTUFSʹ໋໊نଇʹԊͬͯ4FDSFUΛ࡞Ε͹0, ,VCFBENͱূ໌ॻɾൿີݤ

-:$PSQPSBUJPO • ൿີݤɾূ໌ॻͷෳ੡ˡطଘΫϥελ͔Βίϐʔ • FUDEͷϝϯόʔ؅ཧ • ʜ $POUSPM1MBOFϊʔυ௥Ճͷ՝୊

-:$PSQPSBUJPO • $POUSPM1MBOF /PEFͷ௥Ճɺ࡟আ࣌ʹFUDEΫϥελΛૢ࡞͢Δඞཁ͕͋Δ • ৽نϝϯόʔͷ௥Ճ࣌FUDEͷىಈ࣌ʹطଘϝϯόʔͷΤϯυϙΠϯτࢦఆ • طଘϝϯόʔͷ࡟আ࣌ର৅ϝϯόʔΛΫϥελ͔Β࡟আ • FUDEͷΤϯυϙΠϯτ͕Θ͔Βͳ͚Ε͹ૢ࡞Ͱ͖ͳ͍
• ˠͲ͏΍ͬͯϝϯόʔͷΤϯυϙΠϯτΛ؅ཧ͢Δʁ &UDEϝϯόʔ؅ཧͷඞཁੑ

-:$PSQPSBUJPO • FUDE͸LVCFMFU TUBUJDQPEͱ࣮ͯ͠ߦ • )PTU/FUXPSLϞʔυ • ,VCFSOFUFT"1*ܦ༝Ͱ৘ใऔಘ • -BCFMͰFUDE
1PETΛࣝผ • DPNQPOFOUFUDE • UJFSDPOUSPMQMBOF • ΤϯυϙΠϯτ͸1PEͷ"OOPUBUJPOʹ֨ೲ • kubeadm.kubernetes.io/etcd.advertise-client-urls ैདྷͷ&UDEϝϯόʔ؅ཧ control-1 (IP: 10.0.0.1) containerd kubelet 通常Pod etcd Pod listen at 10.0.0.1:2379

-:$PSQPSBUJPO • ैདྷʢ3BODIFSʣ͸%PDLFSίϯςφͱͯ͠ FUDEΛ࣮ߦ • )PTUOFUXPSLϞʔυ • FUDE%PDLFSίϯςφ͸3BODIFS͕؅ཧ • ,VCFSOFUFT
"1*͔Β͸FUDEίϯςφ͸ ૢ࡞औಘͰ͖ͳ͍ ैདྷͷ&UDEϝϯόʔ؅ཧ ؅ཧ control-1 (IP: 10.0.0.1) containerd kubelet 通常Pod Etcd コンテナ Docker listen at 10.0.0.1:2379

-:$PSQPSBUJPO μϛʔ1PEʹΑΔFUDEϝϯόʔ৘ใͷ޿ࠂ &UDEϝϯόʔ؅ཧ໰୊ͷղܾࡦ ؅ཧ control-1 (IP: 10.0.0.1) containerd kubelet
ダミー etcd Pod Etcd コンテナ Docker listen at 10.0.0.1:2379

-:$PSQPSBUJPO • ൿີݤɾূ໌ॻͷෳ੡ˡطଘΫϥελ͔Βίϐʔ • FUDEͷϝϯόʔ؅ཧˡμϛʔ1PEΛ഑ஔ • ʜ ·ͱΊ$POUSPM1MBOFϊʔυ௥Ճͷ՝୊

-:$PSQPSBUJPO Ҡߦ׬ྃ Control Plane Worker Control Plane Control Plane
Worker Worker

-:$PSQPSBUJPO l ΦϖϨʔγϣϯͷࣗಈԽɾίϯτϩʔϥʔԽɾ"1*Խ l 3BODIFS$MVTUFS"1*ίϯτϩʔϥͱͷڠௐಈ࡞ l Ҡߦதͷ๦֐ૢ࡞ͷ๷ࢭ l ,VCFBENઃఆϑΝΠϧͷੜ੒౳ l
ࡉ͔͍ΧελϜػೳͷରԠ l ؂ࢹγεςϜͷҠߦ l ʜ ͦͷଞͷ໰୊

-:$PSQPSBUJPO • σΟετϦϏϡʔγϣϯʹґΒͣLVCFSOFUFTͷجຊίϯϙʔωϯτ͸ڞ௨ • LVCFBQJTFSWFS LVCFMFU FUD • खಈͰઃఆ͢Ε͹ҟͳΔσΟετϦϏϡʔγϣϯΛҠߦ͢Δ͜ͱ΋Մೳ •
l,VCFSOFUFTUIF )BSE8BZz͠·͠ΐ͏ ·ͱΊ

-:$PSQPSBUJPO ‒ IUUQTHJUIVCDPNLFMTFZIJHIUPXFSLVCFSOFUFTUIFIBSEXBZ ‒ IUUQTLVCFSOFUFTJPEPDTSFGFSFODFTFUVQUPPMTLVCFBENJNQMFNFOUBUJPOEFUBJMT ‒ IUUQTLVCFSOFUFTJPEPDTSFGFSFODFBDDFTTBVUIOBVUI[ • "VUIFOUJDBUJOHXJUI#PPUTUSBQ5PLFOT •
$FSUJGJDBUF4JHOJOH3FRVFTUT • 5-4CPPUTUSBQQJOH ࢀߟϦϯΫ

-:$PSQPSBUJPO 5IBOLZPV

-:$PSQPSBUJPO ෇࿥ɿσΟετϦϏϡʔγϣϯຖͷҧ͍ ,VCFBEN ,5)8 3BODIFS3,& ,VCFMFU࣮ߦ؀ڥ 4ZTUFNE 6OJU౳ QBDLBHF౳ 4ZTUFNE
6OJU TFMGCJOBSZ %PDLFSίϯςφ BQJTFSWFS౳࣮ߦ؀ڥ LVCFMFU TUBUJD QPE 4ZTUFNE 6OJU TFMGCJOBSZ %PDLFSίϯςφ LVCF QSPYZ࣮ߦ؀ڥ %BFNPOTFU %BFNPOTFU %PDLFSίϯςφ BQJTFSWFSˠFUDE௨৴ MPDBMIPTUͷΈ શϝϯόʔྻڍ MPDBMIPTUͷΈ ,VCFMFUˠBQJTFSWFS௨৴ -#౳ܦ༝ -# *1 "EESFTT ܦ༝ ௚઀ ,VCFMFU༻ূ໌ॻੜ੒ खಈੜ੒ ίϯτϩʔϥͰੜ੒

Kubernetes the hard way revisited 〜ゼロダウンタイムクラスタ...

Kubernetes the hard way revisited 〜ゼロダウンタイムクラスタ移行から学ぶクラスタ構築の仕組み〜

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