制約のあるAZの利用でハマった話

by Takafumi Omuro

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੍໿ͷ͋Δ";ͷར༻Ͱ ϋϚͬͨ࿩ גࣜձࣾϞϦαϫ খࣨو࢙

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໊લɿখࣨو࢙ʢBLB͓ΉΖΜʣ ࣗݾ঺հ ࢓ࣄɿςοΫϦʔυ "84ΠϯϑϥΤϯδχΞ ޷͖ͳαʔϏεɿ$PEF#VJME $MPVE'PSNBUJPO ॴଐɿגࣜձࣾϞϦαϫ γεςϜ։ൃ෦ Πϊϕʔγϣϯ։ൃ՝

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ࠓ೔఻͍͑ͨ͜ͱ ౦ژϦʔδϣϯͰ͸ BQOFB[͸ར༻͠ͳ͍

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ࠓ೔఻͍͑ͨ͜ͱ ౦ژϦʔδϣϯͰ͸ BQOFB[͸ར༻͠ͳ͍

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݁࿦ݴ͑ͨͷͰଓ͖͸Ώͬ͘Γ

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ΞϕΠϥϏϦςΟκʔϯ "; "WBJMBCJMJUZ;POFT ͷ͓͞Β͍ IUUQTEPDTBXTBNB[PODPNKB@KQ"84&$MBUFTU6TFS(VJEFVTJOHSFHJPOTBWBJMBCJMJUZ[POFTIUNMΑΓҾ༻ Ϧʔδϣϯ͝ͱʹΞϕΠϥϏϦςΟʔκʔϯͱݺ͹ΕΔෳ਺ͷ ಠཱͨ͠৔ॴ͕͋Γ·͢ɻΠϯελϯεΛىಈ͢Δͱ͖ʹɺΞ ϕΠϥϏϦςΟʔκʔϯΛࣗ෼Ͱબ୒͢Δ͔ɺࣗಈతʹબ୒͞ ΕΔΑ͏ʹͰ͖·͢ɻ

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ΞϕΠϥϏϦςΟκʔϯ "; "WBJMBCJMJUZ;POFT ͷ͓͞Β͍ IUUQTEPDTBXTBNB[PODPNKB@KQ"84&$MBUFTU6TFS(VJEFVTJOHSFHJPOTBWBJMBCJMJUZ[POFTIUNMΑΓҾ༻ ΞϕΠϥϏϦςΟʔκʔϯ͸ɺϦʔδϣϯίʔυͱͦΕʹଓ͘ จࣈࣝผࢠʹΑͬͯද͞Ε·͢ VTFBTUBͳͲ ɻϦιʔε ͕Ϧʔδϣϯͷෳ਺ͷΞϕΠϥϏϦςΟʔκʔϯʹ෼ࢄ͞ΕΔ Α͏ʹ͢ΔͨΊʹɺΞϕΠϥϏϦςΟʔκʔϯ͸֤"84ΞΧ ΢ϯτͷ໊લʹݸผʹϚοϐϯά͞Ε·͢ɻྫ͑͹ɺ"84Ξ Χ΢ϯτͷΞϕΠϥϏϦςΟʔκʔϯVTFBTUBͷ৔ॴ͸ɺ ผͷ"84ΞΧ΢ϯτͷVTFBTUBͷ৔ॴͱҟͳΔՄೳੑ͕ ͋Γ·͢ɻ

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3FTPVSDF"DDFTT.BOBHFS ར༻͍ͯ͠ΔΞΧ΢ϯτͷ";ͷ֬ೝ جຊతʹ̏ͭͷ ";͕ଘࡏ

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$ aws ec2 describe-availability-zones \ > --region ap-northeast-1 \ > --query 'AvailabilityZones[].{ZoneName:ZoneName, ZoneId:ZoneId}' \ > --output table ---------------------------------- | DescribeAvailabilityZones | +------------+-------------------+ | ZoneId | ZoneName | +------------+-------------------+ | apne1-az4 | ap-northeast-1a | | apne1-az1 | ap-northeast-1c | | apne1-az2 | ap-northeast-1d | +------------+-------------------+ $-*Ͱͷ֬ೝํ๏ Ϣʔβʔ͝ͱʹϚοϐϯά͕ҧ͏ ௨ৗར༻͢Δ";/BNF ࿦ཧ໊ ར༻͍ͯ͠ΔΞΧ΢ϯτͷ";ͷ֬ೝ

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$ aws ec2 describe-availability-zones \ > --region ap-northeast-1 \ > --query 'AvailabilityZones[].{ZoneName:ZoneName, ZoneId:ZoneId}' \ > --output table ---------------------------------- | DescribeAvailabilityZones | +------------+-------------------+ | ZoneId | ZoneName | +------------+-------------------+ | apne1-az4 | ap-northeast-1a | | apne1-az1 | ap-northeast-1c | | apne1-az2 | ap-northeast-1d | +------------+-------------------+ $-*Ͱͷ֬ೝํ๏ ͜Ε͕Ұ؏ੑͷ͋Δ ࣝผࢠͰ͋Δ";*% ෺ཧ*% ར༻͍ͯ͠ΔΞΧ΢ϯτͷ";ͷ֬ೝ

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$ aws ec2 describe-availability-zones \ > --region ap-northeast-1 \ > --query 'AvailabilityZones[].{ZoneName:ZoneName, ZoneId:ZoneId}' \ > --output table ---------------------------------- | DescribeAvailabilityZones | +------------+-------------------+ | ZoneId | ZoneName | +------------+-------------------+ | apne1-az4 | ap-northeast-1a | | apne1-az1 | ap-northeast-1c | | apne1-az2 | ap-northeast-1d | +------------+-------------------+ $-*Ͱͷ֬ೝํ๏ BQOFB[͕ ଘࡏ͍ͯ͠ͳ͍ʂ ར༻͍ͯ͠ΔΞΧ΢ϯτͷ";ͷ֬ೝ

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ݹ͍ΞΧ΢ϯτͷ৔߹ ར༻͍ͯ͠ΔΞΧ΢ϯτͷ";ͷ֬ೝ ̐ͭͷ";͕ ଘࡏ͍ͯ͠Δ

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ΞϕΠϥϏϦςΟκʔϯ "; "WBJMBCJMJUZ;POFT ͷ͓͞Β͍ IUUQTEPDTBXTBNB[PODPNKB@KQ"84&$MBUFTU6TFS(VJEFVTJOHSFHJPOTBWBJMBCJMJUZ[POFTIUNMΑΓҾ༻ ΞϕΠϥϏϦςΟʔκʔϯ͕֦େ͢ΔͱɺΞϕΠϥϏϦςΟʔ κʔϯΛ֦ு͠ʹ͘͘ͳΔ৔߹͕͋Γ·͢ɻͦͷ৔߹ɺϢʔ βʔ͕ΞϕΠϥϏϦςΟʔκʔϯʹطʹΠϯελϯεΛ࣋ͬͯ ͍ΔͷͰͳ͍৔߹͸ɺ੍໿ͷ͋ΔΞϕΠϥϏϦςΟʔκʔϯͰ ͷΠϯελϯεͷىಈΛ੍ݶ͢Δ৔߹͕͋Γ·͢ɻ࠷ऴతʹɺ ੍໿ͷ͋ΔΞϕΠϥϏϦςΟʔκʔϯΛ৽͍͠ΞΧ΢ϯτʹର ͢ΔΞϕΠϥϏϦςΟʔκʔϯͷϦετ͔Β࡟আ͢Δ͜ͱ΋͋ Γ·͢ɻ͕ͨͬͯ͠ɺΞΧ΢ϯτʹΑͬͯϦʔδϣϯ಺Ͱ࢖༻ Ͱ͖ΔΞϕΠϥϏϦςΟʔκʔϯͷ਺͕ҟͳΔ৔߹͕͋Γ· ͢ɻ

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ࠓ೔఻͍͑ͨ͜ͱ ౦ژϦʔδϣϯͰ͸ BQOFB[͸ར༻͠ͳ͍ ੍໿ͷ͋Δ ΞϕΠϥϏϦςΟκʔϯ ʹͳΔ

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੍໿ͷ͋Δ";͕͋Δ ੍໿ͷ͋ΔΞϕΠϥϏϦςΟκʔϯʁ w ެࣜυΩϡϝϯτʹৄࡉͷهࡌ͸ͳͦ͞͏ w ੍໿ͷ͋ΔΞϕΠϥϏϦςΟκʔϯ͕͋Δͱ͍͏ ৘ใͷΈଘࡏ w ݹ͍"84Ͱ͸༗ޮԽ͞Ε͍ͯΔ͜ͱ΋͋Δ w 71$͕ͳ͔ͬͨ࣌୅͙Β͍ݹ͍ΞΧ΢ϯτʁ w ৽͍͠"84Ͱ͸༗ޮԽ͞Ε͍ͯͳ͍ w ֘౰";*%BQOFB[͸ར༻Ͱ͖ͳ͍

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BQOFB[͕ଘࡏ͢Δ ݹ͍"84ΞΧ΢ϯτ͸஫ҙ

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AWSTemplateFormatVersion: 2010-09-09 Parameters: AvairabilityZone1: Description: Availability Zone 1 Type: AWS::EC2::AvailabilityZone::Name … Resources: # Vpc Vpc: Type: AWS::EC2::VPC … # サブネット Subnet1: Type: AWS::EC2::Subnet Properties: VpcId: !Ref Vpc AvailabilityZone: !Ref AvairabilityZone1 CidrBlock: !Sub … 71$࡞੒༻$'OςϯϓϨʔτͷ࢖͍ճ͠ ࣄނͨ͠έʔε ੍໿ͷ͋Δ";Λ ҙਤͤͣબ୒ ੍໿ͷ͋Δ";Ͱ αϒωοτΛ࡞੒

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… 続き # NAT ゲートウェイ EIP: Type: AWS::EC2::EIP Properties: Domain: vpc Tags: - Key: Name Value: Nat Gateway 1 NatGateway1: Type: AWS::EC2::NatGateway Properties: AllocationId: !GetAtt EIP.AllocationId SubnetId: !Ref Subnet1 … 71$࡞੒༻$'OςϯϓϨʔτͷ࢖͍ճ͠ ࣄނͨ͠έʔε ੍໿ͷ͋Δ";Ͱ /"5Λ࡞੒

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/"5ήʔτ΢ΣΠͷτϥϒϧγϡʔςΟϯά ࣄނͨ͠έʔε IUUQTEPDTBXTBNB[PODPNKB@KQWQDMBUFTUVTFSHVJEFOBUHBUFXBZUSPVCMFTIPPUJOHIUNMOBUHBUFXBZUSPVCMFTIPPUJOHVOTVQQPSUFEB[ΑΓҾ༻ ݪҼ ੍໿ͷ͋ΔΞϕΠϥϏϦςΟʔκʔϯ ౰ࣾʹΑΔ֦ுʹ੍ݶ ͕͋Δκʔϯ Ͱ/"5ήʔτ΢ΣΠΛ࡞੒͠Α͏ͱ͍ͯ͠Δ Մೳੑ͕͋Γ·͢ɻ ιϦϡʔγϣϯ ͜ΕΒͷΞϕΠϥϏϦςΟʔκʔϯͰ͸/"5ήʔτ΢ΣΠ͸ αϙʔτ͞Ε͍ͯ·ͤΜɻ

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AWSTemplateFormatVersion: 2010-09-09 … Resources: # DB サブネットグループ DBSubnetGroup: Type: AWS::RDS::DBSubnetGroup Properties: DBSubnetGroupName: db-subnet-group-name SubnetIds: - Fn::ImportValue: private-subnet-1-id - Fn::ImportValue: private-subnet-2-id - Fn::ImportValue: private-subnet-3-id … 3%4࡞੒༻$'OςϯϓϨʔτͷ࢖͍ճ͠ ࣄނͨ͠έʔε ઌఔ࡞ͬͨ71$Λ ಡΈࠐΜͰɺ ੍໿ͷ͋Δ";Ͱ %#αϒωοτάϧʔϓ Λ࡞੒

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AWSTemplateFormatVersion: 2010-09-09 … Resources: # DB サブネットグループ DBSubnetGroup: Type: AWS::RDS::DBSubnetGroup Properties: DBSubnetGroupName: db-subnet-group-name SubnetIds: - Fn::ImportValue: private-subnet-1-id - Fn::ImportValue: private-subnet-2-id - Fn::ImportValue: private-subnet-3-id … 3%4࡞੒༻$'OςϯϓϨʔτͷ࢖͍ճ͠ ࣄނͨ͠έʔε ࡞੒ʹࣦഊ BQOPSUIFBTUC BQOPSUIFBTUD BQOPSUIFBTUE Ͱ࡞੒͠Ζ

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AWSTemplateFormatVersion: 2010-09-09 … Resources: # DB サブネットグループ DBSubnetGroup: Type: AWS::RDS::DBSubnetGroup Properties: DBSubnetGroupName: db-subnet-group-name SubnetIds: - Fn::ImportValue: private-subnet-1-id - Fn::ImportValue: private-subnet-2-id - Fn::ImportValue: private-subnet-3-id … 3%4࡞੒༻$'OςϯϓϨʔτͷ࢖͍ճ͠ ࣄނͨ͠έʔε ࡞੒ʹࣦഊ BQOPSUIFBTUC BQOPSUIFBTUD BQOPSUIFBTUE Ͱ࡞੒͠Ζ ଞʹ΋Ϧιʔε࡞ͬͨ͠ 71$͔Β΍Γ௚ͨ͘͠ͳ͍ ΜͰ͚͢Ͳʜ

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ࠔͬͨͱ͖͸པΓʹͳΔαϙʔτ໰͍߹Θͤ ࣄނͨ͠έʔε ͜͏͍͏ঢ়گͰ͕͢ Ͳ͏͢Ε͹͍͍Ͱ͔͢ʁ

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ࠔͬͨͱ͖͸པΓʹͳΔαϙʔτ໰͍߹Θͤ ࣄނͨ͠έʔε ͜͏͍͏ঢ়گͰ͕͢ Ͳ͏͢Ε͹͍͍Ͱ͔͢ʁ ";CDEͰ࡞Δͱ Ͳ͏ͳΓ·͔͢ʁ

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ࠔͬͨͱ͖͸པΓʹͳΔαϙʔτ໰͍߹Θͤ ࣄނͨ͠έʔε ͜͏͍͏ঢ়گͰ͕͢ Ͳ͏͢Ε͹͍͍Ͱ͔͢ʁ ";CDEͰ࡞Δͱ Ͳ͏ͳΓ·͔͢ʁ ଞʹ΋Ϧιʔε͋Δ͠ ࡞Γ௚͠ਏ͍Ͱ͢

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ࠔͬͨͱ͖͸པΓʹͳΔαϙʔτ໰͍߹Θͤ ࣄނͨ͠έʔε ͜͏͍͏ঢ়گͰ͕͢ Ͳ͏͢Ε͹͍͍Ͱ͔͢ʁ ";CDEͰ࡞Δͱ Ͳ͏ͳΓ·͔͢ʁ ଞʹ΋Ϧιʔε͋Δ͠ ࡞Γ௚͠ਏ͍Ͱ͢ ੍໿ͷ͋Δ";Λ ར༻͍ͯ͠ΔͷͰ ͜ͷ··ͷར༻͸ ͓קΊͰ͖·ͤΜ

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ࠔͬͨͱ͖͸པΓʹͳΔαϙʔτ໰͍߹Θͤ ࣄނͨ͠έʔε ͜͏͍͏ঢ়گͰ͕͢ Ͳ͏͢Ε͹͍͍Ͱ͔͢ʁ ";CDEͰ࡞Δͱ Ͳ͏ͳΓ·͔͢ʁ ଞʹ΋Ϧιʔε͋Δ͠ ࡞Γ௚͠ਏ͍Ͱ͢ ੍໿ͷ͋Δ";Λ ར༻͍ͯ͠ΔͷͰ ͜ͷ··ͷར༻͸ ͓קΊͰ͖·ͤΜ 😇

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ࠓ೔఻͍͑ͨ͜ͱ ౦ژϦʔδϣϯͰ͸ BQOFB[͸ར༻͠ͳ͍ ݹ͍"84ΞΧ΢ϯτͰ ΞϕΠϥϏϦςΟκʔϯ͕ ̐ͭ͋Δ৔߹͸஫ҙ͠·͠ΐ͏

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஥ؒืूதͰ͢ʂ w ϓϩδΣΫτϚωʔδϟʔ w 1.0#31%9ܦݧऀ w όοΫΤϯυΤϯδχΞ w "84 (P1ZUIPO %PDLFSܦݧऀ 1IPUP1",65"40 'POU.PSJTBXB