AWSではてなブログの常時HTTPS配信をバーンとやる話 / The Epic of migration from HTTP to HTTPS on Hatena Blog with AWS

by aereal

Embed

Start on current slide

Slide 1

Slide 1 text

AWSͰ͸ͯͳϒϩάͷ  ৗ࣌HTTPS഑৴Λ  όʔϯͱ΍Δ࿩ Hatena Engineer Seminar #10 @ Tokyo גࣜձࣾ͸ͯͳ id:aereal

Slide 2

Slide 2 text

ࣗݾ঺հ • id:aereal • GitHub: aereal • Twitter: aereal • ϒϩάϢʔβʔνʔϜ  ΞϓϦέʔγϣϯΤϯδχΞ  ςοΫϦʔυ

Slide 3

Slide 3 text

࿩͢͜ͱ • ͸ͯͳϒϩάͷৗ࣌HTTPS഑৴ͷٕज़తͳৄࡉ • ূ໌ॻͷಈతಡΈࠐΈ • ূ໌ॻͷࣗಈߋ৽ • ͓ΑͼϓϩδΣΫτͷਐΊํ

Slide 4

Slide 4 text

എܠ • ͸ͯͳϒϩάͰ͸ɺ͸ͯͳఏڙυϝΠϯͷ  ͍ͣΕ͔͔Βબ΂·͢ • *.hatenablog.com, *.hatenadiary.jp, etc. • ͞Βʹɺ͸ͯͳϒϩάPro (༗ྉΦϓγϣϯ) ʹਃ͠ࠐΉͱ  ಠࣗυϝΠϯ͕࢖͑·͢ • ಠࣗυϝΠϯͰ΋ৗ࣌HTTPS഑৴Λ࣮ݱ͍ͨ͠

Slide 5

Slide 5 text

Let's Encrypt • https://letsencrypt.org/ • ISRG = Internet Security Research Group͕ఏڙ͢Δ  ϓϩάϥϚϒϧʹΞΫηεՄೳͳೝূہ (CA) • ෆಛఆଟ਺ͷυϝΠϯʹର͢Δ  ূ໌ॻൃߦͷࣗಈԽ͕Մೳʹͳͬͨ

Slide 6

Slide 6 text

Let's Encrypt • ಠࣗυϝΠϯͷৗ࣌HTTPS഑৴ʹ͔ܽͤͳ͍ଘࡏɺ౰વ ར༻͠·͢ • Let's EncryptΛར༻͢Δاۀͱͯ͠ɺ  ·ͨܝ͛Δࢥ૝ʹڞײ͢ΔWebαʔϏεࣄۀऀͱͯ͠ɺ  ͸ͯͳ͸Let's Encryptʹد෇Λ͠·͢

Slide 7

Slide 7 text

ಠࣗυϝΠϯͱূ໌ॻ • DONE: ͸ͯͳఏڙυϝΠϯ (*.hatenablog.com, etc.) • ਺͕஌Ε͍ͯΔͷͰূ໌ॻ1ͭͷ഑ஔͰࡁΉ • SAN (= Subject Alternative Names) Λ࢖͏ • ϫΠϧυΧʔυূ໌ॻΛ࢖͏

Slide 8

Slide 8 text

ಠࣗυϝΠϯͱূ໌ॻ • ಠࣗυϝΠϯ • ਺͕ଟ͍ͷͰূ໌ॻͷൃߦ΋ಡΈࠐΈ΋େม • LE = Let's Encrypt͸ূ໌ॻ͋ͨΓ  100υϝΠϯͷ੍໿͕͋Δ • Ұ౓ʹಡΈࠐΉͱproxyͷϝϞϦ࢖༻ྔ͕ਹΉ

Slide 9

Slide 9 text

ΰʔϧ(1): ূ໌ॻͷಡΈࠐΈ • ؆୯ͷͨΊূ໌ॻ͸1υϝΠϯ1ͭɺSAN͸࢖Θͳ͍ • ΦϯσϚϯυͰಡΈࠐΜͰϝϞϦઅ໿ • ϘτϧωοΫʹͳΓ͏ΔͷͰ  ϥ΢ϯυτϦοϓɺϨΠςϯγΛ཈͍͑ͨ

Slide 10

Slide 10 text

ΰʔϧ (2): ఆظߋ৽ • ϦΞϧλΠϜੑ͸௿͍ • ظݶΛܴ͑Δ·Ͱͷ೚ҙͷλΠϛϯάͰ  ࣮ߦ͢Ε͹Α͍ • ҰํɺσʔλҰ؏ੑʹର͢Δཁٻ͕ߴ͍ • ࣦഊ͢ΔͳͲߋ৽࿙Ε͕͋Δͱ·͍ͣ • ֎෦API (LE) Λར༻͢ΔͨΊࣦഊՄೳੑ͕ߴ͍  →ద੾ͳϦτϥΠॲཧ͕ඞཁ

Slide 11

Slide 11 text

γεςϜͷߏ੒

Slide 12

Slide 12 text

cert-dispatcher cert-cache-gw cert-updater-state cert-updater-function cert-update-notiﬁer cert-update-trigger Let's Encrypt cert-store cert-cache cert-lifecycle-store User Blog HTTP ssl_handshake_handler HTTP Get/Set Get HTTP HTTP ࣮ߦ ࣮ߦ ࣮ߦ UpdateItem UpdateItem TTL trigger ࣮ߦ ূ໌ॻൃߦ

Slide 13

Slide 13 text

ূ໌ॻͷಡΈࠐΈ

Slide 14

Slide 14 text

cert-dispatcher cert-cache-gw cert-updater-state cert-updater-function cert-update-notiﬁer cert-update-trigger Let's Encrypt cert-store cert-cache cert-lifecycle-store User Blog HTTPS ssl_handshake_handler HTTP Get/Set Get HTTP HTTP ࣮ߦ ࣮ߦ ࣮ߦ UpdateItem UpdateItem TTL trigger ࣮ߦ ূ໌ॻൃߦ

Slide 15

Slide 15 text

Slide 16

Slide 16 text

Slide 17

Slide 17 text

ূ໌ॻͷಈతಡΈࠐΈ • cert-dispatcher: ngx_mruby • TLS handshake࣌ʹϋϯυϥ͕ݺ͹ΕΔ • cert-cache-gwʹHTTP GETͯ͠ূ໌ॻΛऔಘ͢Δ • cert-cache-gw: GoͰॻ͍ͨHTTP API • υϝΠϯʹରԠ͢Δূ໌ॻΛcert-store (DynamoDB) ͔ Βऔಘͯ͠ฦ͢ • cert-cache (memcached) ʹ΋อଘ͢Δ

Slide 18

Slide 18 text

ূ໌ॻͷऔಘ

Slide 19

Slide 19 text

Slide 20

Slide 20 text

Slide 21

Slide 21 text

Slide 22

Slide 22 text

Slide 23

Slide 23 text

Slide 24

Slide 24 text

Slide 25

Slide 25 text

ূ໌ॻͷൃߦ • cert-updater-state: AWS Step Functions • JSONͰεςʔτϚγϯΛ࣮ߦͯ͘͠ΕΔαʔϏε • ॊೈͳϦτϥΠॲཧ΍ঢ়ଶભҠΛ؅ཧͰ͖Δ • cert-updater-function: AWS Lambda • LEͱ௨৴͠ূ໌ॻΛऔಘ͢Δ • ൃߦͨ͠ূ໌ॻ͸DynamoDBʹॻ͖ࠐΉ • cert-update-notiﬁer: AWS Lambda • ূ໌ॻͷൃߦঢ়گΛ͸ͯͳϒϩάຊମʹ఻͑Δ

Slide 26

Slide 26 text

ূ໌ॻͷఆظߋ৽

Slide 27

Slide 27 text

Slide 28

Slide 28 text

Slide 29

Slide 29 text

ূ໌ॻͷఆظߋ৽ • cert-lifecycle-store: DynamoDB • ূ໌ॻͷऔಘ࣌ʹ͜ͷςʔϒϧʹ΋ॻ͖ࠐΉ • TTL triggerΛൃߦ͠ɺcert-update-triggerΛىಈ͢Δ • cert-update-trigger: AWS Lambda • TTL͕੾Εͯ࡟আ͞ΕͨΞΠςϜΛड͚औΔ • cert-updater-stateΛ࣮ߦ͠ɺূ໌ॻऔಘϑϩʔΛ։࢝

Slide 30

Slide 30 text

DynamoDB TTL

Slide 31

Slide 31 text

cert-lifecycle-store  (DynamoDB) Domain: ex1.example.com ExpiresAt: 2018-05-23T02:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T03:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T04:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T05:00:00

Slide 32

Slide 32 text

cert-lifecycle-store  (DynamoDB) Domain: ex2.example.com ExpiresAt: 2018-05-23T03:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T04:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T05:00:00

Slide 33

Slide 33 text

cert-lifecycle-store  (DynamoDB) Domain: ex2.example.com ExpiresAt: 2018-05-23T04:00:00 Domain: ex2.example.com ExpiresAt: 2018-05-23T05:00:00

Slide 34

Slide 34 text

cert-lifecycle-store  (DynamoDB) Domain: ex2.example.com ExpiresAt: 2018-05-23T05:00:00

Slide 35

Slide 35 text

ͳͥAWS͔ • ෳࡶ͔ͭߴ౓ͳόονΛߏஙʹඞཁͳαʔϏε͕  ἧ͍ͬͯΔ͔Β • ෳࡶ: ূ໌ॻͷऔಘɾ݁Ռͷ௨஌ͳͲෳ਺εςοϓ͔Β ͳΔ • ߴ౓: ෼ࢄΞϓϦέʔγϣϯʹ΋ؔΘΒͣ  σʔλͷҰ؏ੑ͕ߴ͍ϨϕϧͰٻΊΒΕΔ • = Lambda, Step Functions, etc.

Slide 36

Slide 36 text

Step Functions͸࠷ߴ • ग़ྗ಺༰ʹԠͯ͡ঢ়ଶભҠΛ෼ذͰ͖Δ • άϥϑΟΧϧʹग़ྗͯ͘͠ΕΔ (͍͢͝!) • Τϥʔग़ྗ಺༰ʹԠ্ͨ͡ݶ෇͖ϦτϥΠॲཧ • ΊͪΌͪ͘Ό͔ͬ͜Α͘ͳ͍Ͱ͔͢?

Slide 37

Slide 37 text

No content

Slide 38

Slide 38 text

No content

Slide 39

Slide 39 text

Go • Lambda function͸͢΂ͯGo, cert-cache-gw΋Go • ίϯύΠϥʹΑΔܕݕࠪͰ҆৺ • ೖग़ྗͷܕΛLambda functionؒͰڞ༗Ͱ͖ɺ  ᴥᴪ͕ੜͨ͡ΒίϯύΠϧΤϥʔʹͳΔ • ΤίγεςϜ͕੒ख़͍ͯ͠Δ • ΫϩείϯύΠϧ • ςετϥϯφʔɺςετϑϨʔϜϫʔΫ

Slide 40

Slide 40 text

ϓϩδΣΫτͷਐΊํ • ΞʔΩςΫνϟΛݕ౼ • AWSΛۦ࢖ͨ࣍͠ੈ୅TSDBͷઃܭʹؔΘͬͨ  id:y_uukiʹڠྗͯ͠΋Βͬͨ • http://blog.yuuk.io/entry/the-rebuild-of-tsdb-on-cloud • ϓϩτλΠϐϯά (1िؒ) • ࣮ࡍʹखΛಈ͔͢͜ͱͰෆ໌ྎͩͬͨ఺ͷݟੵ΋Γ͕ਖ਼֬ʹͳͬͨ • (LambdaͷσϓϩΠͳͲ) • Goॳֶऀͩͬͨϝϯόʔ΋צΛ௫Ίͯɺຊ࣮૷Ͱ૝ఆҎ্ʹ  ϕϩγςΟ͕҆ఆͨ͠

Slide 41

Slide 41 text

ϓϩδΣΫτͷਐΊํ • ·ͣূ໌ॻಡΈࠐΈ෦෼ (cert-loader) Λ։ൃ • ͜ͷ࣌఺Ͱ͸·ͩূ໌ॻΛऔಘ͠ͳ͍ͷͰɺӨڹ͸ͳ ͍ • ࣍ʹূ໌ॻऔಘ෦෼ (cert-updater) Λ։ൃ • ͜ͷ෦෼ΛϦϦʔε͢Δ͜ͱͰ͸͡Ίͯ  ಠࣗυϝΠϯͰHTTPS഑৴͕ར༻ՄೳʹͳΔ

Slide 42

Slide 42 text

ϓϩδΣΫτͷਐΊํ • ϦϦʔε୯ҐͷCQS = ίϚϯυΫΤϦ෼ׂ͕ͳ͞Εͨ • command: cert-updater • query: cert-loader • CQS = Command-query Separation: • มߋܥ (command) ͱಡऔܥ (query) Λ  ෼ׂ͢ΔΞʔΩςΫνϟ • େ͖ͳϦϦʔεͰ͋Δ͕ɺগͣͭ͠ग़͍ͯ͘͠ͱ͍͏  ීஈͷελΠϧΛऔΓೖΕΒΕ͍ͯΔ

Slide 43

Slide 43 text

·ͱΊ • ͸ͯͳϒϩάͷৗ࣌HTTPS഑৴ͷཪଆΛ͝঺հ͠·ͨ͠ • ։ൃ͸ॱௐͰɺࠂ஌௨ΓͷεέδϡʔϧͰ  ఏڙ։࢝Ͱ͖ΔݟࠐΈͰ͢ • ࣮͸Perl͚ͩ͡Όͳ͍͠ɺAWS΋׆༻͍ͯ͠·͢!

Slide 44

Slide 44 text

એ఻: αϚʔΠϯλʔϯ2018 • http://developer.hatenastaﬀ.com/entry/intern- preentry-2018 • ࠓ೥΋΍Γ·͢ • લ൒ߨٛͷݴޠ͸GoͰ͢