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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 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