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phpアプリケーションをGo言語へ
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yuuki takezawa
November 03, 2016
Programming
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phpアプリケーションをGo言語へ
yuuki takezawa
November 03, 2016
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Transcript
phpΞϓϦέʔγϣϯΛ Goݴޠ go func() { messages <- "php" }() yuuki
takezawa phpcon 2016
GoݴޠΛ࠾༻͢Δ͜ͱʹͳͬͨഎܠ
ڊେͳαʔϏεͷݶք
ڊେαʔϏεʹΑΔ • 1Օॴͷमਖ਼͕க໋తͳΛҾ͖ى͜͢έʔε • ෳࡶԽ͢Δ༷ʹରԠ͢Δҝͷ࣮͕ύϑΥʔϚϯε ʹӨڹΛ༩͑࢝Ίͨ • ڊେʹͳΓ͗ͨ͢σʔλϕʔε • ୲֎ͷαʔϏε༷͕Θ͔Βͳ͚Εमਖ਼Ͱ͖ͳ͍
ঢ়ଶ • API͕͘͢ͳ͘ɺଟ͕͘σʔλϕʔεʹґଘ • ϏδωεͷมԽʹैͰ͖ͳ͍ঢ়ଶ • େྔσʔλͷόονॲཧ
ʹཱ͔ͪ͏ • σʔλϕʔεࢀরͷΓ͠ • APIͷඋ json, xml, etc… • ΫϥΠΞϯτͷॲཧΛ؆ུԽ͢ΔҝʹɺHATEOAS
(औΓΈத) • σʔλϕʔεࣗମͷׂ (ςʔϒϧͷ࠶ઃܭɺతผʹׂɺNoSQLซ༻) • ԣஅతʹؔΘΔαʔϏεͱͷ࿈ܞ (message queue, ฒྻॲཧ)
σʔλϕʔεࢀরͷΓ͠ • ιʔείʔυͷ͍ͨΔͱ͜Ζʹ͋ΔσʔλϕʔεࢀরΛ நԽɺDependency Injection • σʔλϕʔεଓΛߦ͍ͬͯΔίʔυ͔Βɺ ֎తཁҼΛΓ͠ • ΞϓϦέʔγϣϯߏΛ·ͣϨΠϠʔԽ
• ঃʑʹAPIࢀরͱΓସ͍͑ͯ͘ • PHPΞϓϦέʔγϣϯΛૄ݁߹ʹ
class PointBalance { /** @var PointRepositoryInterface */ protected $repository; /**
* @param PointRepositoryInterface $repository */ public function __construct(PointRepositoryInterface $repository) { $this->repository = $repository; } // snippet }
Controller / Action Domain Infrastructure MySQL API Elasticsearch Aspect
None
APIͷඋ • ଞαʔϏεͷࣝΛෆཁʹ (URLͷߏஙɺͲΜͳAPIͰͲΜͳ͜ͱ͕Ͱ͖Δͷʁ) • ϦΫΤετͷݮ • ΤϯυϙΠϯτʹಈࢺΘͣɺϝιουͰදݱ͢Δ • ڞ௨Ͱར༻͢ΔͷίϯϙʔωϯτԽ
• ݹ͍APIͳͲɺଟ͘ͷαʔϏε͕ґଘ͍ͯ͠Δͷͳ ͔ͳ͔͍͠ • ύϑΥʔϚϯε͕ϘτϧωοΫͳͷreplace
{ "id": 1598, "user_id": 123, "title": "ίϝϯτʹͨ͠Α", "content": "ϝʔϧ͕དྷͳ͍ΑͶ", "tags":
[ { "id": 5098, "name": "ඒന" } ], "created_at": "2016-10-12 17:31:50" }
{ "id": 3746, "user_id": 123, "title": "ςετ", "content": "aaa", "tags":
[ { "id": 6081, "name": "ΞϩϚΦΠϧ", "_links": { "self": { "href": "http://example.com/tags/6081", "method": "GET" } } } ], "created_at": "2016-10-14 16:57:37", "_links": { "self": { "href": "http://example.com/3746", "method": "GET" } } }
navi menu content content
ϑϩϯτͰར༻͞ΕΔAPI • ϑϩϯτʹग़ྗ͞ΕΔͷ͚ͩͰͳ͘ɺ ͦͷޙΖʹ߇͑Δͷ • Ϣʔβʔొใ • ϝʔϧૹ৴ • ͳʹ͔͠Βͷߦಈʹ͏Ճࢉݮࢉ
• ඇಉظɺϦΞϧλΠϜ • τϥϯβΫγϣϯεΫϦϓτ • ฒྻϦΫΤετʹ͑͏Δͷ • ϑϩϯτ͔ΒΓ͢͜ͱͰదࡐదॴͳݴޠ࠾༻
େྔͷϦΫΤετΛޮྑ͘ࡹ͖͍ͨ
Nginx + php-fpm Response time: 0.01 secs Transaction rate: 384.48
trans/sec
େ͖ͳͳ͠ • ΞΫηε͕ଟ͘ͳΕɺΛ૿͢ • opcacheಋೖ͠(PHP7)ɺߴͳϨεϙϯε • ࣮໘ͰͷόάΛ࠷খݶʹ৯͍ࢭΊ͍ͨ • PHP7ʹͳΓɺݫ֨Ͱ͋Δ͕ɺ ։ൃऀશһ͕ཧղ͍ͯ͠ΔΘ͚Ͱແ͍
• ϦΞϧλΠϜॲཧΛͱʹ͔͘ૣ͘ • ඞཁͳใΛଋͶͯฦ٫͍ͨ͠
γϯϓϧɺฒߦ͔ͭߴͰ੩తܕ͚ݴޠ
Go • webαʔόͳͲ͕ෆཁͰ୯ମͰಈ࡞͢Δ • جຊγϯάϧόΠφϦͷҝɺϦϦʔε͕༰қ • ίϯύΠϧ͕ૣ͘ɺΫϩείϯύΠϧ • ϝϞϦϦʔΫʹͳΓಘΔͷ͕ഉআ͞Ε͍ͯΔ •
1αʔόͰෳىಈͤ͞Δ͜ͱ͕Ͱ͖Δ • ίϯύΠϧͱ࣮ߦ͕ಉ࣌ʹͰ͖ΔͨΊɺ LLݴޠ։ൃऀͰ؆୯ • Ϋϥε͕ແ͍
// linux͚windows͚ͳͲ༷ʑͳOSʹରԠ $ GOOS=linux GOARCH=amd64 go build -tags=production app.go
Struct • ΫϥεͰͳ͍ • ໊લͱܕͷू·Γ • ઌ಄͕େจࣈͷͷpublic ͦ͏Ͱͳ͍ͷprivate •
ίϯετϥΫλଘࡏͤͣɺܧঝͳ͍ • ߏମΛຒΊࠐΜͰར༻͢Δ
type Item struct { Language } type Language struct {
Name string } Item{Language{"PHP"}}
func handler(w http.ResponseWriter, r *http.Request) { person := &Person{"yuuki", "takezawa"}
fullName(person) } func fullName(name UserName) { fmt.Println(name.Name()) } type Person struct { FirstName string LastName string } func (p *Person) Name() string { return p.FirstName + " " + p.LastName } type UserName interface { Name() string }
goroutine • ಉ࣌ʹෳͷλεΫΛॲཧ • ॲཧΛׂ͍ͯ͘͠ • εϨουͷΑ͏ʹ1εϨου্Ͱෳಈ࡞ • ಄ʹgo Λ͚ͭΔ͚ͩ
go func() • ͕ͪ࣌ؒൃੜͯ͠͠·͏Α͏ͳॲཧΛඇಉظͰ • ฒߦॲཧ
func f(from string) { for i := 0; i <
3; i++ { fmt.Println(from, ":", i) } } // ॱ൪อূ͞Ε·ͤΜ fun main() { go f("routine") go f("routine_one") go f(“routine_two") }
ฒߦͱฒྻ • ฒߦ ࣮ߦঢ়ଶΛෳอͯΔͳΒ • ฒྻ ෳͷಈ࡞Λಉ࣌ʹग़དྷΔ • GoݴޠͷฒߦੑΛө૾Խ͢Δ http://postd.cc/go_concurrency_visualize/
channel • <- (ҹͷํʹྲྀΕΔ) • goroutine ؒͰΓऔΓΛߦ͏ • phpͰ͍͜͠ͱΛΧόʔ͢Δ •
ΩϡʔΠϯάɺॲཧͪঢ়ଶͳͲΛ࡞Δ
func read(r io.Reader) <-chan message { lines := make(chan message)
go func() { defer close(lines) scan := bufio.NewScanner(r) for scan.Scan() { lines <- message(scan.Bytes()) } }() return lines }
defer ͱ panic • defer: ϝιου͕ऴྃ͢Δࡍʹίʔϧ͞ΕΔ • σʔλϕʔεͳͲͷஅͳͲॲཧͷԆʹ͏ • panicruntime
errorʹ͋ͨΓɺ ࣮ߦ͕͍͠߹ʹͷΈར༻͢Δ • panic࣌ʹdefer͕ίʔϧ͞ΕΔ • ΤϥʔॲཧΛ͢ΔͷͰ͋ΕerrorΛ͢ • panic͔Β͔ͳΒͣrecover()͢Δ
nginxΛͬͨϩʔυόϥϯγϯά
upstream go_http { server 127.0.0.1:8080; server 127.0.0.1:8081; keepalive 300; }
server { listen 80; server_name go.app; charset utf-8; access_log off; error_log /dev/null crit; location / { proxy_pass http://go_http; proxy_http_version 1.1; proxy_set_header Connection ""; } }
Nginx + go Response time: 0.00 secs Transaction rate: 2142.67
trans/sec
খ͞ͳͱ͜Ζ͔Βஔ͖͑Λ࢝Ίͨ • PHPͰ࣮ߦ͞Ε͍ͯͨେྔσʔλͷόονॲཧ ͔͔࣌ؒΓɺσʔλͷྔ͕૿͑Δ͜ͱͰߋʹ࣌ؒ ϝϞϦ͕৺(͕݅૿͑Δ͝ͱʹ૿Ճ) • Goʹஔ͖͑ɺϝϞϦ༻ྔ͕ܹݮ ͕࣌ؒॖ σʔλϕʔεʹΑͬͯ͋·ΓมΘΒͳ͍͜ͱ͋ͬͨ •
web։ൃʹదͨ͠ඪ४ϥΠϒϥϦ͕ଟ͘ɺ ίʔυಡΈ͘͢ɺ݁ՌҰ෦Ͱ࠾༻
ϑϨʔϜϫʔΫ echo
echo • ϚΠΫϩϑϨʔϜϫʔΫͰɺlumenzend expressive ͱಉ͡ײ֮Ͱ։ൃ͕Ͱ͖Δ • fasthttp͕ΦϓγϣϯͰ͑Δ • grace͕͙͢ʹ͑Δঢ়ଶͰɺͱʹ͔͘؆୯ •
ඞཁͳͷࣗͰΈࠐΉ • ܰྔͳAPIͰ͋Εൺֱత࣌ؒͰ࣮Մೳ
ಋೖલʹ࣮ફ • ϓϥΠϕʔτͰ։ൃ͍ͯͨ͠ΞϓϦͷAPIʹ·ͣಋೖ • ҆ఆՔಇͱ࣮͕ૣ͍ • OAuthαʔό࣮ • ߴෛՙͰඇৗʹ҆ఆ •
facebookgo/inject • ΦϒδΣΫτࢦϥΠΫʹ࣮͍͕ͯͨ͠ɺ Goͷ࡞๏ʹͷͬͨ΄͏͕γϯϓϧ • ϦϑϨΫγϣϯۃྗΘͳ͍
Go goroutine API API Database queue
վળ • ΑΓૣ͘ɺݎ࣮ͳΞϓϦέʔγϣϯ • ͦΕͧΕͷαʔϏεͷॲཧʹదͨ͠ͷΛಋೖ • ϦϦʔε࡞ۀͷ୯७Խ ίϯύΠϧͯ͠(CIͳͲ) • supervisord
• ύϑΥʔϚϯεվળ গͣͭ͠
๊͍͑ͯΔ • ڥઃఆͳͲͷڞ༗ viper? • όΠφϦʹͯ͢ͷσʔλΛ࣋ͨͤΔ͔ go-bindata etc • ϑϥάͱڥ͝ͱͷઃఆ
ιʔείʔυʹηΩϡΞͳใΛؚΊΒΕͳ͍ • ؆୯ͱݴͬͯͳ͔ͳ͔։ൃऀ͕૿͑ͳ͍
Request Response web server + php
$_SERVER net/http application server
phpΛิ͍ɺͦΕΛαʔϏεͱͯ͠׆͔͢
վળ࢝·͔ͬͨΓ ՝ղܾΛPHP+αͰ (దࡐదॴ)
PHPΞϓϦέʔγϣϯΛGoݴޠͱ࡞Δ