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ΫοΫύουͷ σϓϩΠͱ Φʔτεέʔϧ ΫοΫύουגࣜձࣾ੒ాҰੜ +"84%":4

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KBXTEBZTJOGSB

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੒ాҰੜ ͳΔͨ ͍͍ͬͤ !NJSBLVJ ΫοΫύουגࣜձࣾ ΠϯϑϥετϥΫνϟʔ෦௕

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ࠓ೔ͷ࿩ ΫοΫύουʹ͍ͭͯ ϓϩϏδϣχϯάʢαʔϏεσΟεΧόϦʣ ΞϓϦέʔγϣϯͷσϓϩΠ Φʔτεέʔϧ !

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ΫοΫύουʹ͍ͭͯ

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'VMM"84 2011೥3݄ ౦ژϦʔδϣϯΦʔϓϯ 2011೥8݄ DC͔ΒAWS΁Ҡߦ ✈

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.6#NP .14VTFST .DPPLJOHSFDJQFT ˞೥݄ݱࡏ !" # #

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&$JOTUBODFT &-#T 4#VDLFUT 3PVUF3FDPSET

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3FETIJGUGPS#* UBCFNJSVDPN 4/4GPS.PCJMF1VTI/PUJpDBUJPO

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0QT %FWFMPQFST %FQMPZTEBZ ⚒ #

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ΞϓϦέʔγϣϯίʔυͷσϓϩΠ

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$ QVMMSFRVFTU ()& # EFWFMPQFS

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$ QVMMSFRVFTU NFOUJPO ()& # EFWFMPQFS # SFWJFXFS

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$ -(5. QVMMSFRVFTU NFOUJPO ()& # EFWFMPQFS # SFWJFXFS

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$ -(5. QVMMSFRVFTU NFOUJPO ()& # EFWFMPQFS # SFWJFXFS NFSHF

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$ -(5. QVMMSFRVFTU NFOUJPO ()& # EFWFMPQFS # SFWJFXFS $* +FOLJOT NFSHF

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$ TVDDFTT -(5. QVMMSFRVFTU NFOUJPO ()& # EFWFMPQFS # SFWJFXFS $* +FOLJOT NFSHF

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$ TVDDFTT -(5. QVMMSFRVFTU NFOUJPO EFQMPZ &$ ()& # EFWFMPQFS # SFWJFXFS $* +FOLJOT NFSHF

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σϓϩΠϧʔϧʢҰ෦ʣ • CI Λύεͨ͠ϦϏδϣϯͷΈσϓϩΠͯ͠Α͍ • σϓϩΠ͸ίʔυΛ push ͨ͠։ൃऀࣗ਎͕ߦ͏ • Ӧۀ࣌ؒ಺ͷΈσϓϩΠՄೳ • σϓϩΠޙ͸։ൃऀ͕ಈ࡞֬ೝ͠ɺ
 ෆ۩߹Λݟ͚ͭͨΒ͙͢ʹϩʔϧόοΫ͢Δ

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σϓϩΠޙʹΤϥʔ΍ϨεϙϯελΠϜྼԽ͕ແ͍͜ͱΛ֬ೝ ϦΞϧλΠϜϞχλϦϯάπʔϧlJNPOz

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ΫοΫύουͷ αʔόϓϩϏδϣχϯά

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αʔϏεσΟεΧόϦ໰୊ αʔό͕ಈతʹ૿͑ͨΓݮͬͨΓ͢Δঢ়گͰ͸
 ੩తͳ”αʔό؅ཧ୆ா”͸ӡ༻Ͱ͖ͳ͍ ! αʔό͕௥Ճ͞ΕͨΒݕ஌͢Δ࢓૊Έ͕ඞཁ →Serf, Zookeeper ౳ %

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&$λάʹΑΔσΟεΧόϦ Name λά Role λά Status λά &

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&$ͷλάػೳʹ͍ͭͯ key: value ͷϖΞ

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ΫοΫύουͰͷ&$λά ͦͷαʔόͷଐੑ΍ঢ়ଶΛهड़ ! Πϯελϯε͸ࣗ෼ࣗ਎΍ɺଞΠϯελϯεͷλάΛݟͯ ࣗ཯ڠௐతʹಈ͘

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/BNFλά ͦͷΠϯελϯεͷϗετ໊ DNSαʔό͕ࣗಈݕ஌͠ɺAϨίʔυΛ௥Ճ ! ྫ: Name: app-001 &

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' /BNFEC

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' /BNFEC ' /BNFEC

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' /BNFEC ' /BNFEC 1PXFS%/4

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' /BNFEC ' /BNFEC 1PXFS%/4 ⟲ (

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' /BNFEC ' /BNFEC 1PXFS%/4 ⟲ ( EC" EC" %/4αʔό͕ఆظతʹશ/BNFλάΛ૸ࠪ͠ɺ %/4ϨίʔυΛߋ৽

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3PMFλά Πϯελϯεͷ໾ׂΛهड़ ! ྫ: Role: app &

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QVQQFU NBTUFS )

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' 3PMFBQQ QVQQFU NBTUFS )

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' 3PMFBQQ BQQMZlBQQz QVQQFU NBTUFS )

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' 3PMFBQQ ' 3PMFEC BQQMZlBQQz QVQQFU NBTUFS )

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' 3PMFBQQ ' 3PMFEC BQQMZlBQQz QVQQFU NBTUFS BQQMZlECz )

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' 3PMFBQQ ' 3PMFEC BQQMZlBQQz QVQQFU NBTUFS BQQMZlECz QVQQFUNBTUFS͸ద༻ઌͷ3PMFλάΛݟͯ
 ద༻͢ΔΫϥεΛࣗಈͰܾఆ )

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4UBUVTλά ͦͷΠϯελϯε͕όϥϯαʔʹ
 ௥Ճ͍͍ͯ͠΋ͷ͔Ͳ͏͔Λఆٛ ! ྫ: Status: working &

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3PMFBQQ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ

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3PMFBQQ ' 4UBUVTXPSLJOH * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ ' 4UBUVTXPSLJOH

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ ' 4UBUVTXPSLJOH

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ ' 4UBUVTXPSLJOH

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3PMFBQQ ' 4UBUVTXPSLJOH ⟲ * IBQSPYZDGH BQQIBQSPYZ 3PMFBQQ ' 4UBUVTXPSLJOH XPSLJOHঢ়ଶͷΠϯελϯεΛࣗಈͰαʔϏεΠϯ

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' ͳͥλάͰશ෦΍Δͷ͔ Zookeeper, Serf ౳ͷಛผͳϛυϧ΢ΣΞΛඞཁͱͤͣʹ
 αʔϏεσΟεΧόϦ͕Մೳ ! ඇৗʹγϯϓϧ͔ͭϓϩάϥϚϒϧ

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λάͷϋϚϦͲ͜Ζ DescribeTags ͷ API Limit 1 Ϧιʔεʹλά͸10ݸ·Ͱ % -JNJU DBDIF (

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πʔϧ λάϑϨϯυϦʔͳ؅ཧπʔϧ͕ඞཁ ElasticFox-ec2tag

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Φʔτεέʔϧ

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τϥϑΟοΫ &$Πϯελϯε਺ ࣌ؒ τϥϑΟοΫͷมԽʹԠͯ͡Πϯελϯε਺Λ૿ݮ

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ͳͥΦʔτεέʔϧͳͷ͔ '

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*OTUBODFIPVS EC2ͷ࠷খ՝ۚ୯Ґ ىಈதͷΠϯελϯε਺ x ىಈ࣌ؒʢ1࣌ؒ୯Ґʣ ΦϯσϚϯυɺ౦ژϦʔδϣϯ೥݄೔ݱࡏIUUQBXTBNB[PODPNKQFDQSJDJOH

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&$Πϯελϯε਺ I Πϯελϯε࣌ ( JOTUBODFIPVS Φʔτεέʔϧ ͳ͠ Φʔτεέʔϧ ͋Γ

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"NB[PO"VUP4DBMJOH

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$MPVE8BUDI "VUP 4DBMJOH "VUP4DBMJOH(SPVQ ".*

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ͨͱ͑͹ "NB[PO"VUP4DBMJOH Λ΍ΊΔ

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ͳͥ"NB[PO"VUP4DBMJOHͰ͸ͳ͍ͷ͔ CloudWatch 1෼ͷน Graceful Terminate ໰୊ ELB Ͱ͸ͳ͘ haproxy Λ࢖͍͍ͨ σϓϩΠͱͷഉଞ੍ޚΛεϜʔζʹߦ͏ͨΊ

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$MPVE8BUDIͷੑೳ΁ͷෆຬ ෼ͷนɹϝτϦΫε͕औಘͰ͖Δͷ͸࠷଎Ͱ΋1෼ޙ +

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(SBDFGVM5FSNJOBUF໰୊ desired_capacity ͕ݮΔͱ͖ɺ
 Πϯελϯε͸໰౴ແ༻ͰTerminate ͞Εͯ͠·͏ ҆શͳαʔϏεΞ΢τΛߦ͏ʹ͸޻෉͕ඞཁ

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*OUFSOBM&-#Ͱ͸ͳ͘IBQSPYZΛ࢖͍͍ͨ ELB ͷ IP ΞυϨεͷಈతͳมԽʹ
 ϛυϧ΢ΣΞ͕ରԠ͖͠Εͳ͍ ! ϒϥοΫϘοΫε౓͕ߴ͘ɺ໰୊͕೺Ѳͮ͠Β͍ ˞&-#ͳ͠Ͱ΋"NB[PO"VUP4DBMJOH͸࢖͑·͢

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"NB[PO"VUP4DBMJOH WT EFQMPZTEBZ

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W W W W #

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W W W W W #

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W W W W W #

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W W W W W W W W #

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W W W W W W W W W W W #

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W W W W W W W W W ݹ͍όʔδϣϯͷΠϯελϯε͕࡞ΒΕͯ͠·͏

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"NB[PO"VUP4DBMJOHͰഉଞ੍ޚ σϓϩΠத͸ AutoScaling ΛࢭΊɺ AutoScaling த͸σϓϩΠΛېࢭ͍ͨ͠ ! AutoScaling ͕ΠϯελϯεΛ૿΍͢ͱ͖ɾݮΒ͢ͱ͖ʹ ॲཧΛׂΓ͜·ͤΔඞཁ͕͋Δ →ࠔ೉

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CloudWatch 1෼ͷน Graceful Terminate ໰୊ ELB Ͱ͸ͳ͘ haproxy Λ࢖͍͍ͨ σϓϩΠͱͷഉଞ੍ޚΛεϜʔζʹߦ͍͍ͨ ࣗ෼Ͱશ෦ॻ͍ͯ΋͋·Γखؒ͸มΘΒͳͦ͏ "NB[PO"VUP4DBMJOHͰղܾෆՄೳͰ͸ͳ͍͚Ͳɺ ଟ͘ͷίʔυΛॻ͖ɺΧελϚΠζ͢Δඞཁ͕͋Δ + +

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$PPLQBE"VUP4DBMJOHͷ࣮૷ ,

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JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W W W W W W W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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W W JNPO "4 # W W EFWFMPQFS W W W W W W SQT '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH '4UBUVTXPSLJOH

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Φʔτεέʔϧͷ͋Δ฻Β͠ ✈

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ͱ͋ΔΠϯελϯεͷ ୆਺ ೔ Φʔτεέʔϧ

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ΦʔτεέʔϧʹΑΔσϓϩΠϩοΫத σϓϩΠத

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( ( ΦʔτεέʔϧʹΑΔσϓϩΠϩοΫத σϓϩΠத

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Φʔτεέʔϧத σϓϩΠத

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- ೥Ҏ্ӡ༻Ͱ͖ͯΔ

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೥ͷӡ༻࣮੷Λ௨ͯ͠ ۤ࿑ͨ͠఺ɺ޻෉ɺؾ͍ͮͨ͜ͱ

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ϩοΫ࣌ؒɾճ਺Λ࠷খʹ͢Δ σϓϩΠΛϩοΫʹՁ஋Λಧ͚ΔνϟϯεΛݮΒ͢ .

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୆਺

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୆਺ ۀ຿࣌ؒ σϓϩΠՄೳ࣌ؒଳ

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୆਺ ۀ຿࣌ؒ σϓϩΠՄೳ࣌ؒଳ αʔϏε"ϩοΫճ αʔϏε#ϩοΫճ

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୆਺ Ұ౓ʹ૿ݮ͢Δ୆਺Λௐ੔͢Δ͜ͱͰ ۀ຿࣌ؒதͷσϓϩΠϩοΫճ਺Λ࠷খݶʹ ۀ຿࣌ؒ σϓϩΠՄೳ࣌ؒଳ αʔϏε"ϩοΫճ αʔϏε#ϩοΫճ

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୆਺ Ұ౓ʹ૿ݮ͢Δ୆਺Λௐ੔͢Δ͜ͱͰ ۀ຿࣌ؒதͷσϓϩΠϩοΫճ਺Λ࠷খݶʹ ۀ຿࣌ؒ σϓϩΠՄೳ࣌ؒଳ αʔϏε"ϩοΫճ αʔϏε#ϩοΫճ ۀ຿࣌ؒ֎ͷͨΊɺ ݮΒ͢ͱ͖͸খࠁΈʹ

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ςετΛॻ͘ Φʔτεέʔϧ͸αʔόΛམͱ͢ϓϩάϥϜ /

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ఆظతʹઃఆΛݟ௚͢ ์͓͍ͬͯͯ΋εέʔϧ͢ΔΑ͏ʹݟ͑Δ͕… ! ΞϓϦαʔόͷ୆਺૿ˠόοΫΤϯυ΁ͷίωΫγϣϯ૿ ΞϓϦέʔγϣϯͷύϑΥʔϚϯε΋ৗʹมԽ 0

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TUBUJDOPEFTEZOBNJDOPEFTߏ੒ ৗʹཱͪଓ͚ͯΔΠϯελϯε͕͍ͨ΄͏͕ ͳΜ͔ͩΜͩͰศར TUBUJD EZOBNJD

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TUBUJDOPEFT EZOBNJDOPEFT Φʔτεέʔϧର৅֎ ୆਺͸ݻఆ TIVUEPXO͞Εͳ͍ Φʔτεέʔϧର৅ ୆਺͸Մม CBMBODFS

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αʔό໊Ͳ͏͠Α͏໰୊ dynamic nodes Ͱ͋Ζ͏ͱɺ
 ݁ہ hostname ͸͋ͬͨ΄͏͕؅ཧ͠΍͍͢ ! 10.0.123.45 ͩͬͨΒ app-10-0-123-45 ͱ͍͏
 Name λά͕ͭ͘Α͏ʹ͍ͯ͠Δ &

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Φʔτεέʔϧͷ෭࢈෺ ΦʔτεέʔϧΛ૊Ήͱɺ Immutable ͳ
 Golden Image ͕࡞ΕΔ ! ͍ͭͰ΋ҰൃͰ࠷৽ͷαʔό্ཱ͕ͪ͛ΒΕΔ͜ͱ͕
 อূ͞ΕΔ +

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·ͱΊ

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EFQMPZTEBZWT "VUP4DBMJOH 10 deploys/day ͳ؀ڥͰ΋Φʔτεέʔϧ͸Մೳ ίετͱ։ൃ଎౓ͷτϨʔυΦϑΛߟྀͨ͠νϡʔχϯά

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"VUP4DBMJOHBT *NNVUBCMF*OGSBTUSVDUVSF Immutable Infrastructure ͸ະདྷͷ࿩͡Όͳ͘ɺ
 ΫοΫύουͰ͸ΦʔτεέʔϧʹΑͬͯ͢Ͱʹ ݱ࣮ʹͳͬͯΔ

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2" '

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DSFEJUT http://aws.amazon.com/jp/architecture/icons/ http://www.entypo.com/ http://fortawesome.github.io/Font-Awesome/ http://www.flickr.com/photos/sora_h/8916379094/