#phpcon2022 エラーと向き合い、自信を持ってサービス開発に取り組み、前に進む

by hideki kinjyo

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PHP Conference Japan 2022 Hideki Kinjyo GitHub: o0h / Twitter: @o0h_ [഑෍൛]

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ࣗݾ঺հ / GitHub: @o0h / Twitter: @o0h_ FW CakePHP

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胸

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胸できてますか！

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ࣗ৴Λ࣋ͭɾɾʁ

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ϓϩҙࣝʹ݉Ͷඋ͑ΒΕΔ΂͖ʮج४ʯ CTO S**T S**T [ग़య] ᴷ Robert C. Martin,֯ ੐య. Clean Craftsmanshipɹن཯ɺج४ɺྙཧ (Japanese Edition) Kindle ൛ P292

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ʮ޷͖ͳਓ͕͍Δ͸͕ͣͳ͍ɻʯ S**T

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ʮΤϥʔͱ޲͖߹͏ʯ 胸

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胸 1

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͓͠ͳ͕͖ 1. - - 2. - - 3. - - 4. - with Sentry- 5.

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͓࿩͠ͳ͍͜ͱ QA

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͜ͷ͓࿩Λಧ͚͍ͨਓ(૝ఆ͢Δର৅) 胸 Sentry

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֓೦ɾݺͼํʹ͍ͭͯ : E_ALL : ( ) : ( ) :

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§1 - -

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§1 .1

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ݸਓతͳؾ࣋ͪ 2 胸

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ҙຯͷ͋Δ΋ͷΛ࡞Γ͍ͨ ( )

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ؾ࣋ͪΑ͘։ൃʹऔΓ૊Έ͍ͨ 装 etc

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ࢲతͳܦݧᶃ

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ࢲతͳܦݧᶃ Open (Sentry Raygun Errbit) Rate Limit

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= ( )

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Τϥʔ͕ͳ͚Ε͹Ғ͍ɺͱ͍͏༁Ͱ΋ͳ͍͕ɾɾɾ ,10,000 , , 10,000,000,000,000,000,000,000,000,000 , , , , [ग़య] ᴷ Weinberg, Gerald M, େ໺ ₼࿠(؂༁). ϫΠϯόʔάͷγεςϜࢥߟ๏ P198

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ϓϩҙࣝʹ݉Ͷඋ͑ΒΕΔ΂͖ʮྙཧʯ [ग़య] ᴷ Robert C. Martin,֯ ੐య. Clean Craftsmanshipɹن཯ɺج४ɺྙཧ (Japanese Edition) Kindle ൛ P335

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ࢲతͳܦݧᶄ PJ

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ࢲతͳܦݧᶄ PJ ( )

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ڳΛுͬͯνʔϜͷதʹډΒΕΔ͔ (= ) 胸

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ͲͪΒ΋ٹ͍͍ͨ 胸

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΍Δ΂͖͜ͱʹऔΓ૊Ή 胸

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§2 - -

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§2ͷ·ͱΊ(͜Ε͔Β࿩͢͜ͱ)

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§2 .1 .2

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΍Γ͍ͨ͜ͱɺͦΕҎ֎ͷ͜ͱ = =

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Ձ஋ΛੜΈग़͢ͷʹ࢖͍͑ͯΔ࣌ؒ͸ᶃ 49% 21% 38% 27% [ग़య] ᴷ Nicole Forsgren Ph.D.,Jez Humble,Gene Kim,෢ࣷ޿޾, ෢ࣷΔΈ. LeanͱDevOpsͷՊֶ[Accelerate] ςΫϊϩδʔͷઓུత׆༻͕૊৫มֵΛՃ଎͢Δ P63

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Ձ஋ΛੜΈग़͢ͷʹ࢖͍͑ͯΔ࣌ؒ͸ᶃ ( ) 21%

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Ձ஋ΛੜΈग़͢ͷʹ࢖͍͑ͯΔ࣌ؒ͸ᶄ 80 20 80% [ग़య] ᴷ David Scott Bernstein,٢Ӌཾଠ࿠,Ӭ੉ඒึ,ݪాٍ࿠,༗໺խ࢜. ϨΨγʔίʔυ͔Βͷ୤٫ ιϑτ΢ΣΞͷण໋ΛԆ͹͠Ձ஋ΛߴΊΔ9ͭͷϓϥΫςΟε P29

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ιϑτ΢ΣΞ։ൃͷʮ༧ఆ֎ʯͷΠϯύΫτ 21 80

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ͤΊͯʮ΍Γͨ͘ͳ͍͜ͱʯΛݮΒ͢

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§2 .1 .2

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ݶΒΕͨ࿑ྗΛ૿΍͢ɾ׆͔͢

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ΤϥʔͷҰੜ

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ίετͷҰੜ

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ΤϥʔରԠʹ܎Δίετ

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ಛఆ·Ͱͷίετ ( ) [ग़య] ᴷ David Scott Bernstein,٢Ӌཾଠ࿠,Ӭ੉ඒึ,ݪాٍ࿠,༗໺խ࢜. ϨΨγʔίʔυ͔Βͷ୤٫ ιϑτ΢ΣΞͷण໋ΛԆ͹͠Ձ஋ΛߴΊΔ9ͭͷϓϥΫςΟε P28

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ʮܽؕͷಛఆʯ͕ͦ͜໽հͳ໰୊ [ग़య] ᴷ Weinberg, Gerald M, େ໺ ₼࿠(؂༁). ϫΠϯόʔάͷγεςϜࢥߟ๏ P234

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ಛఆ͕Ͱ͖ͯ΋ɾɾ૿͑ଓ͚͍ͯΔίετ , , , , , ( ) 1 , , , , , [ग़య] ᴷ Pete McBreen, ଜ্ խষ. XPΤΫετϦʔϜϓϩάϥϛϯάջٙฤʕXP͸ιϑτ΢ΣΞ։ൃͷٹੈओͨΓ͑Δͷ͔ P130

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ࣦഊʹؔ͢Δίετͷ੔ཧ =( ) 1. ( ) ( ) etc. 2. 署 etc. [ࢀߟ] ᴷ Roger S. Pressman, Bruce R. Maxim, SEPA຋༁ϓϩδΣΫτ. ࣮ફιϑτ΢ΣΞΤϯδχΞϦϯάʢୈ9൛ʣP229-230

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ൃݟͷى఺ͷҧ͍ʹΑΔෆܦࡁੑ ( ) 1. 2. /

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ൃݟͷى఺ͷҧ͍ʹΑΔෆܦࡁੑ 1. / (=outside-in) 2. /

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ൃݟͷى఺ͷҧ͍ʹΑΔܦࡁੑ 1. 2. / (=inside-out)

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ൃݟͷ஗Ε(εςʔδҠߦ)ʹΑΔෆܦࡁ 障害変です！具体的に⾔うと、 ●●機能が動きません ͜Μʹͪ͸ʂ ࢓ࣄ͕࣌ؒ͘Β͍ ࢭ·Γ·ͨ͠ʂ ॿ͚ͯʂ 特定つまりどこだろうね！ユーザー対応もするぞ〜 Ϣʔβʔ ʙϦΞϧϫʔϧυͷ୅දऀʙ

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ൃݟͷ஗Ε(εςʔδҠߦ)ʹΑΔෆܦࡁ 故障変です！具体的に⾔うと、 Cache missが多いです特定負荷OK！DB OK！アプリのどっかね！ ·ͩ஌ΒΜ Ϣʔβʔ ʙϦΞϧϫʔϧυͷ୅දऀʙ

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ൃݟͷ஗Ε(εςʔδҠߦ)ʹΑΔෆܦࡁ ⽋陥変です！具体的に⾔うと、 Z::aaa()が変です！特定具体的だね！そのコード⾒るぞ！ Ϣʔβʔ ʙϦΞϧϫʔϧυͷ୅දऀʙ ·ͩ஌ΒΜ

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署

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ରԠͷ஗Ε(࣌ؒ)ʹΑΔෆܦࡁ => => => ࢀߟ ιϑτ΢ΣΞอकͷ๏ଇʢϦʔϚϯͷ๏ଇʣɺ͝ଘ஌Ͱ͔͢ʁɿ৿࡚म࢘ͷʮͲ͏΍ͬͯ͸͔Δͷʁʯ IUUQTCMPHTJUNFEJBDPKQNPSJTBLJQPTUFEIUNM

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όά͸ʮൟ৩ʯ͢Δ 1 1 [ग़య] ᴷ Shore, James, Warden, Shane, ฏು ݈ࣇ, ໦Լ ࢙඙, ࡫Ҫ ਸ࢘ ΞʔτɾΦϒɾΞδϟΠϧσϕϩοϓϝϯτ : ૊৫Λ੒ޭʹಋ͘ΤΫετϦʔϜϓϩάϥϛϯά P169

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X Z

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X Z • XͰରԠͰ͖Ε͹ɺ ʮ2࣌ؒલͷίʔυͷҙਤʯΛࢥ͍ग़͚ͩ͢ͰࡁΉ (ຊ൪σϏϡʔͨͯ͠ͷίʔυͳͷͰɺඃґଘऀ΋গͳͦ͏) • ZͷରԠʹͳΔͱɺ ʮ3ϱ݄લͷίʔυͷҙਤʯΛ֬ೝ͢Δ͜ͱʹ (ͦͷதʹɺܽؕՕॴ΁ͷґଘ΋ؚ·ΕΔ)

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σϓϩΠͷ஗ΕσϓϩΠ΁ͷڪා৺ʹ [ग़య] ᴷ Jeffery D. Smith, ాத ༟Ұ. γεςϜӡ༻Ξϯνύλʔϯ ΤϯδχΞ͕DevOpsͰղܾ͢Δ૊৫ɾࣗಈԽɾίϛϡχέʔγϣϯ P184 恐怖⼼やリスクのあるデプロイが増えれば増えるほど、失敗の可能性も増えるデプロイの間の時間が⻑くなればなるほど、デプロイに含まれる変更の数が増え、それによってリスクが増⼤し、フィードバックループが⽣じる。

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( )

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( )

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ए͍಺ʹժΛఠΉ [ग़య] ᴷ Steve McConnell, ೔ཱΠϯϑΥϝʔγϣϯΞΧσϛʔ. ϥϐου σϕϩοϓϝϯτ P81

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§2ͷ·ͱΊ(͍·࿩ͨ͜͠ͱ)

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§3 - -

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§3ͷ·ͱΊ(͜Ε͔Β࿩͢͜ͱ) Push Proactive

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§3 .1 .2 0 .3

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ΤϥʔରԠͷ࢓૊Έʹ͍ͭͯʮ੒ख़౓ʯΛߟ͑Δ ( , )

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⽋陥を制御する⽋陥に積極的に関⼼がある⽋陥に消極的に関⼼がある⽋陥に関⼼がない故障に関⼼がない障害に関⼼がない ( ) ( )

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( ) ( )

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「受動化・⾃動化」していくのが基本⽅針

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「受動化・⾃動化」していくのが基本⽅針

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「シフトレフト」していくのが基本⽅針

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「シフトレフト」していくのが基本⽅針

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ΤϥʔରԠͷ࢓૊Έʹ͍ͭͯʮ੒ख़౓ʯΛߟ͑Δ 1. 2.

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1. Τϥʔ͸ͲͷΑ͏ʹه࿥ɾ؅ཧ͞Ε͍ͯ·͔͢ 1. ( ) 1 =1(orN) =1 2. =1

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( )

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ʮੜϩάཔΓʯͷ໰୊఺ =>

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( )

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ʮू໿ࡁΈʯͷར఺ ( / ) 縮 ( ) ( ) => ( )

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2. Τϥʔʹ͸ͲͷΑ͏ʹؾͮ͘͜ͱ͕Ͱ͖·͔͢ 署 : : 署 :

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Կ͕Ձ஋ΛଛͶΔ͔ : : 署 :

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νʔϜͰʮ޲͖߹͑ʯ͍ͯΔ͔: ੒ख़ʹ޲͚ͯ ( ) => Push Proactive

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Ͳ͏΍ͬͯආ͚Δ͔: ๬·͍͠ྫͱվળ͢΂͖ྫ ⭕ PUSH ❌ ❌ ⭕ ❌ grep ⭕ ❌

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§3 .1 .2 0 .3

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͓͞Β͍: ࣌ؒͷܦաͱରԠίετͷؔ܎ =

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ʮγϑτϨϑτʯͱରԠίετͷؔ܎

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ίεύͷྑ͍λΠϛϯάΛߟ͑Δ => =>

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ίεύͷྑ͍λΠϛϯάΛߟ͑Δ 鮮結

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ίεύͷྑ͍λΠϛϯάΛߟ͑Δ Just-in-Time

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Τϥʔ͸͍ͭى͜Δͷ͔ : ( ) : ほほ( ) ✕✕( ) 署

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ʮൃݟίετʯͱʮӨڹ(ඃ֐)ʯͷόϥϯεΛऔΔ 駄 n

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ʮ0࣍ରԠʯΛऔΓೖΕΔ = = = 0 ( ) = 1 0

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ʮ0࣍ରԠʯͷܦࡁੑ ( ) 1. 2. 3. 署

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ʮ0࣍ରԠʯͷϝϦοτᶃ 1. ( ) 2. 3. 署

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ʮ0࣍ରԠʯͷϝϦοτᶄ 1. 2. ( ) 3. 署

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ʮ0࣍ରԠʯͷϝϦοτᶅ 1. 2. 3. DevOps

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§3 .1 .2 0 .3

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௵͢΂͖Τϥʔͷ؍఺ ex) UserNotExistsException, DatabaseConnectionError 賢

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௵͢΂͖Τϥʔͷ؍఺ 2 : 0 1縮 ( ) : 賢 1. boolean 2.

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ൃੜͷbooleanͰ͸ͳ͘ɺൃੜස౓Ͱ؂ࢹ͢Δ Duplicate entry for primary key : or : 1 10,000,000,000,000,000,000,000,000,000

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ΞϓϦҎ֎ͷՕॴɾ؍఺Ͱ؂ࢹ͢Δ outside-in : Http Status Code(404, 502, etc)

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§3ͷ·ͱΊ(͍·࿩ͨ͜͠ͱ) Push Proactive 0 :

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§4 - with Sentry -

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§4 .1 Sentry .2 .3 .4 .5

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Sentry ( )SaaS (β PHP ) ( / ) 14

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⼀部の機能を除き、それっぽいデータ込みでGUIをイジれます

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ʲ଎श༻ʳίϨ͚ͩ͸཈͓͑ͯ͘ʂSentryͷجૅ֓೦ Sentry Event 胸 Event 1 Issue Event,Issue Alert

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: Issue Issue 縮 (stats) Issue

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: Issue Issue 駄駄: OS URL 駄: IP

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Issue Event Event Grouping Information ࢀߟ*TTVF(SPVQJOHc4FOUSZ%PDVNFOUBUJPO IUUQTEPDTTFOUSZJPQSPEVDUEBUBNBOBHFNFOUTFUUJOHTFWFOUHSPVQJOH

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ଟগͷ͕ࠩ͋ͬͯ΋ಉҰIssueͱͯ͠ѻ͑Δ 2 Issue 48⾏⽬ 44⾏⽬

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: Event Issue Event 1:N Event timestamp

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: Event : key-value : ID( hash) 胸

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: Alert Issue Alert 縮 Issue ( ) Issue Issue Event Event 縮

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§4 .1 Sentry .2 .3 .4 .5

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Πϯετʔϧํ๏ composer require sentry/sentry : SDK HTTP (php-http/async-client- implementation) sentry/sdk: HTTP FW : (Symfony/Larevel) https://github.com/getsentry/sentry-php

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ΞΧ΢ϯτͷ࡞੒ͱΞϓϦέʔγϣϯઃఆ Sentry 1. https://sentry.io/signup/ 2. PJ Event 胸 URL(DSN) https://sentry.io/for/php/

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ϚεΫͰ͍͟͝·͢ ϚεΫͰ͍͟͝·͢ ϚεΫͰ͍͟͝·͢

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ಥવͷએ఻ʂʂʂʂ connehito/cake-sentry PR Starろ awesome-cakephp Sentry SDK 3rd party integrations 💪 cake4.4+ Laravel ίωώτ͞Μͷٻਓ৘ใ΋೷͍ͯΈ͍ͯͩ͘͞ͶʂIUUQTISNPTDPQBHFTDPOOFIJUPKPCT

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§4 .1 Sentry .2 .3 .4 .5

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͜͜·ͰͷʮͶΒ͍ʯΛSentry্Ͱ࣮ݱ͢Δ 1. ( ) 0 ( ) 2. ( ) ( )

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SentryͰ0࣍ରԠΛ࣮ફ͢Δ Alert Alert Create Alert Issues Set Conditions When: A new issue is created Then: Send a Slack noti cation Slack Integration Alert名が併記される Alert名が併記される

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SentryͰ0࣍ରԠΛ࣮ફ͢Δ When: The issue changes state from resolved to unresolved Then: Send a Slack noti cation

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SentryͰසग़Τϥʔݕ஌Λ࣮ફ͢Δ When: Number of events in an issue is more than XXX( ) in XXX( ) Then: Send a Slack noti cation

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ิ଍: SentryͰશ͘ѻΘͳ͍Τϥʔʹ͍ͭͯ Resolve Sentry UserNotExistsException Sentry SDK 胸 FW ࢀߟ 'JMUFSJOHGPS4ZNGPOZc4FOUSZ%PDVNFOUBUJPO IUUQTEPDTTFOUSZJPQMBUGPSNTQIQHVJEFTTZNGPOZDPOpHVSBUJPOpMUFSJOHpMUFSJOHFSSPSFWFOUT

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ิ଍: SentryͰશ͘ѻΘͳ͍Τϥʔʹ͍ͭͯ Sentry 縮縮 ( ) Amazon CloudWatch

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🎉

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͜͜·ͰͷʮͶΒ͍ʯΛSentry্Ͱ࣮ݱ͢Δ 1. ( ) 0 ( ) 2. ( ) ( )

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ϋ΢εΩʔϐϯάͷ࣮ફ :

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Issueͷ؅ཧ Issue Resolved Unresolved Issue Resolved : Web UI Slack Resolve

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ࣗಈResolveᶃ: ؍࡯ظؒʹΑΔղܾ ( Event ) Resolve Resolve

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ࣗಈResolveᶄ: ϦϦʔεͷ࿈ಈʹΑΔղܾ 胸胸 (Event) (Resolved -> Regression) The next release: The current release: Another existing release: GitHub resolve

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UnresolvedͳIssueͷReview/Reviewed Issue ( ack 踏 ) GitHub Issue tracker Review଴ͪIssueҰཡ ʮReviewࡁΈʯૢ࡞ͱมߋཤྺ

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UnresolvedͳIssueͷIgnore Issue (Ignore) Ignore Event

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͜͜·ͰͷʮͶΒ͍ʯΛSentry্Ͱ࣮ݱ͢Δ 1. ( ) 0 ( ) 2. ( ) ( )

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໰୊ͷൃݟ࣌ͷରԠͷ࣭ΛߴΊΔ Issue

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IssueͷAssign Issue / Slack 縮 Issue Assign Alert

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Issue্Ͱͷิ଍ɾίϝϯτ Issue Resolve Regression Issue

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ѻ͏EventσʔλΛॆ࣮ͤ͞Δ Sentry Event 駄駄 ( ) etc.. Webiner ࢀߟ w $POUFYUc4FOUSZ IUUQTTFOUSZJPGFBUVSFTDPOUFYU w "QQMJDBUJPO.POJUPSJOHBOE&SSPS5SBDLJOH)PXUP*NQMFNFOUBOE$POpHVSF4FOUSZ ʰ"EEJOHDPOUFYUʱ IUUQTXXXZPVUVCFDPNXBUDI W,[4VE$5EVUT

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§4 .1 Sentry .2 .3 .4 .5

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ਐΊํͷ֓ཁ 1. 2. 3. 4.

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ӡ༻ظʹ޲͚ͯͷਐΊํͷ֓ཁ 1. 2. 3. 4.

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πʔϧΛೖΕ͚ͨͩͰ͸ʮελʔτ஍఺ͷखલʯ 1. ( 1 100 ) 2. 0 3. 縮 4. Issue

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ӡ༻ظʹ޲͚ͯͷਐΊํͷ֓ཁ 1. 2. 3. 4.

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ελʔτʹཱͱ͏: ݱঢ়ͷೝࣝͱ໨ඪͷઃఆ (1 1 etc)

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ͲͷఆྔࢦඪΛ༻͍Δ͔ 2

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Ϣʔβʔ΁ͷΠϯύΫτͷ؍఺ Sentry 1. Event ( ) 2. Event (Web )

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ιϑτ΢ΣΞͷ඼࣭ͷ؍఺ Sentry 1. Event 2. Event Issue 3. Issue 4. Unresolved Issue 5. Resolve Issue 6. Issue resolved

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ݸਓతͳΦεεϝ 0 Unresolved Issue Open

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ݸਓతͳΦεεϝ Unresolved Issue cons ( ) Event 1 1

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ݸਓతͳΦεεϝ Unresolved Issue pros 0 ( )

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ఆྔࢦඪͷऔಘɾ؂ࢹํ๏ Dashboard https://docs.sentry.io/product/ dashboards/ API https://docs.sentry.io/api/events/ SandboxΞΧ΢ϯτͰͷμογϡϘʔυͷྫ

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Wedding Park https://speakerdeck.com/kazatohiei/phperkaigi2022 https://engineers.weddingpark.co.jp/sentry/

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ӡ༻ظʹ޲͚ͯͷਐΊํͷ֓ཁ 1. 2. 3. 4.

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طଘΤϥʔͷղফͷ։࢝ 1. : 2. :

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طଘΤϥʔͷղফͷ։࢝ 1. : For Review 0縮 ( ) 2. :

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طଘΤϥʔͷղফͷ։࢝ 1. : 2. : 1 OKR Key Result 1

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§4 .1 Sentry .2 .3 .4 .5

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͓͞Β͍: ݸਓతʹେࣄʹ͍ͯ͠Δ͜ͱ 1. 胸 2.

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͓͞Β͍: ݸਓతʹେࣄʹ͍ͯ͠Δ͜ͱ 1. 胸 2. ここまでの話は割とコッチが中⼼では？

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͓͞Β͍: ݸਓతʹେࣄʹ͍ͯ͠Δ͜ͱ 1. 胸 2. この節はコチラ！

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໌೔͔Β࢝ΊΒΕΔͷ͔ ( )

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(ͨͿΜ)͍͘Βڧௐͯ͠΋ɺ͠଍Γͳ͍ίτ

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(ͨͿΜ)͍͘Βڧௐͯ͠΋ɺ͠଍Γͳ͍ίτ

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ڳΛுͬͯνʔϜͷதʹډ͍ͨ

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໌೔͔ΒԿΛ࢝ΊΒΕΔͷ͔

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Ͳ͏΍ͬͯมԽΛଅ͔͢

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Ͳ͏΍ͬͯมԽΛଅ͔͢ BBQ

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ྑ͍มԽ͸ྑ͍ఉ͔Β࢝·Δ ( ) 1. 2. 3.

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ྑ͍มԽ͸ྑ͍ఉ͔Β࢝·Δ 1. 2. 3.

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ྑ͍มԽ͸ྑ͍ఉ͔Β࢝·Δ 1. 2. 3.

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ྑ͍มԽ͸ྑ͍ఉ͔Β࢝·Δ 1. 2. 3. 0 Sentry (Resolve, Mark Reviewed )

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§5

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Τϥʔͱ޲͖߹͍ɺࣗ৴Λ࣋ͬͯ αʔϏε։ൃʹऔΓ૊ΈɺલʹਐΉ Sentry

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͓͠·͍ʂ ͓෇͖߹͍͍͖ͨͩ ͋Γ͕ͱ͏͍͟͝·ͨ͠

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§X Appendix

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ࢀߟॻ੶ɾҾ༻ͨ͠ॻ੶ Clean Craftsmanship (Japanese Edition) E ective DevOps 4 Fearless Change 48 Google ITIL ITIL Leading Beyond Change: A Practical Guide to Evolving Business Agility Lean DevOps [Accelerate] Observability Engineering: Achieving Production Excellence XP XP : ( ) DevOps 9 ( 3 ) 9 ޒेԻॱ

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Web্ͷࢀߟϦιʔε / Sentry͕ఏڙ͍ͯ͠ΔϦιʔε Product Guides | Sentry Documentation https://docs.sentry.io/product/ API Reference | Sentry Documentation https://docs.sentry.io/api/ Spend Less Time on Bugs & More Time on Features: Sentry + Sleuth | Sentry https://sentry.io/resources/improve-and-automate-your-work ow/ Automate, Group, and Get Alerted: A Best Practices Guide to Monitoring your Code | Sentry https://sentry.io/resources/automate-group-get-alerted/ Sentry - YouTube ろ https://www.youtube.com/c/Sentry-monitoring

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Web্ͷࢀߟϦιʔε / Sentryͷಋೖɾ׆༻ࣄྫ / PHPerKaigi2022 - Speaker Deck https://speakerdeck.com/kazatohiei/phperkaigi2022 Sentry | Wedding Park CREATORS Blog https://engineers.weddingpark.co.jp/sentry/ Raygun Sentry - BASE https://devblog.thebase.in/entry/raygun2sentry - https://daisuki.nichiyoubi.land/entry/2020/07/01/ 123616#%E3%81%AA%E3%81%9C%E3%82%84%E3%82%8B%E3%81%AE%E3%81%8B

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Web্ͷࢀߟϦιʔε / DevOpsɺϞχλϦϯά Monitoring Check Smells https://benjiweber.co.uk/blog/2015/03/02/monitoring-check-smells/ 5 2020 (1/2) CodeZine https://codezine.jp/article/detail/12052 https://www.youtube.com/watch?v=9RPgdJyeA7Y&t=4784s State of DevOps Four Keys ( ) / Introduction to State of DevOps and Four Keys for Visualizing Productivity in Development Organizations expanded and revised edition - Speaker Deck https://speakerdeck.com/isanasan/introduction-to-state-of-devops-and-four-keys-for-visualizing- productivity-in-development-organizations-expanded-and-revised-edition

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Web্ͷࢀߟϦιʔε / ඼࣭ɾอकɾ༧๷ https://blogs.itmedia.co.jp/morisaki/2012/04/post-7e5d.html - Cybozu Inside Out | https://blog.cybozu.io/entry/2016/05/18/103000 - 領 / Growing Reliable Code PHPerKaigi 2022 - Speaker Deck https://speakerdeck.com/twada/growing-reliable-code-phperkaigi-2022 / Agility and Quality Characteristics Developers Summit 2021 Summer - Speaker Deck https://speakerdeck.com/twada/agility-and-quality-characteristics-developers-summit-2021-summer - pixiv inside https://inside.pixiv.blog/shimashima/6247

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Web্ͷࢀߟϦιʔε / ͦͷଞ(จԽɺ૊৫ͳͲ) I - https://daisuki.nichiyoubi.land/entry/2021/12/11/182323 #scrumosaka / Scrum Fest Osaka 2021 Keynote - Speaker Deck https://speakerdeck.com/bu erings/scrum-fest-osaka-2021-keynote / The Debt - Speaker Deck https:// speakerdeck.com/toricls/the-debt / You won't be in the team forever - Speaker Deck https://speakerdeck.com/toricls/you-wont-be-in-the-team-forever