runitが便利なので、使い方を紹介した話 /runit

メドレー開発本部の社内勉強会「TechLunch」で発表した内容を掲載しました。

今回は、runitというunixのプロセススーパバイザについてお話しました。
runit自体は特に目新しい技術ではなく、大して難しい話題でもありません。ただ、個人的には便利に使っている”手放せないツール”であり、もしスーパバイザというものの存在を知らずに使わずにいる人がいると勿体無いなあという思いから、TechLunchのテーマとして取り上げました。

発表者：nakatani

Transcript

1. ർΕͨ͠ εʔύόΠβ(runit)Ͱ σʔϞϯͱ஥ྑ͘ͳΔ by nakatani 1 / 38
2. ͓ؾʹೖΓͷεʔύόΠβ͸ͳΜͰ͔͢ʁ εʔύόΠβศརͰ͢ΑͶɻ 2 / 38
3. ࠷ۙσʔϞϯͱૄԕͳͻͱ΋ɺ ·ͨ஥ྑ͘͠Α͏͔ͳͱɺ ࢥͬͯ΋Β͑Ε͹ɺ ͦΕ͸ͱͬͯ΋خ͍͠ͳͬͯ 3 / 38
4. εʔύόΠβͬͯԿʁ daemonΛ؂ࢹͯ͠ɺམͪͯͨΒ্ཱͪ͛ͨΓ͢ Δ΋ͷɻ େ఍͸OSʹඪ४Ͱ͍ͭͯ͘Δɻ initɺ upstart(amazon gnu linux, ݹ͍ubuntu, centos), systemd(࠷ۙͷgnu linuxσΟετϦϏϡʔγϣϯ), launchd(mac) OSඪ४͡Όͳ͍΍ͭ΋৭ʑ͋Δɻrunitͱ͔ɻ 4 / 38
5. OSͷͻͱͭͷଆ໘ 1. ෳ਺ͷdaemon(αʔϏεͱ΋ݺͿ)͕ɺΧʔωϧͱڠௐͯ͠ɺ 2. ϢʔβʹԿΒ͔ͷମݧΛ΋ͨΒ͢ɻ ϓϩηε൪߸0͕ΧʔωϧͰɺ1൪͕εʔύόΠβɻ εʔύόΠβ͕৭ʑͳσʔϞϯΛ্ཱͪ͛ͯࢮ׆؂ࢹͨ͠Γ͢Δɻ ஫ه OSͱ͍͏ͷ͸unix(posix)Λࢦͯ͠·͢ɻmacOS, iOS, android, gnu linux, freebsdͱ͔ɻ windowsͱ͸ڑ཭Λஔ͘ͷ͕ಘࡦͩͱߟ͑ͯ·͢ɻ αʔϏεͷྫͱͯ͠͸ɺmysqld, nginx, sshdͳͲɻ 5 / 38
6. Πϝʔδ 6 / 38
7. daemonͱ͸ʁ ੍ޚ୺຤ʹඥ෇͍͍ͯͳ͍ϓϩηεͷ͜ͱͰ͋Δɻ (1) ϋϩʔϫʔϧυϓϩάϥϜ͸୺຤Λ௨ͯ͠ੈքʹ͜ΜʹͪΘͱݴͬͯఀࢭ͢Δ. #!/bin/sh echo Hello world. (2) nginx΍mongod͸େ఍͸osىಈͱͱ΋ʹཱͪͬͺͳ͠ɻ ຊ࣭తʹ͸(1)ͱ(2)͸ಉ͡΋ͷͰ͋Δɻ σʔϞϯͱσʔϞϯҎ֎ʹɺͦΕ΄Ͳͷࠩ͸ͳ͍ɻ ࠓޙɺσʔϞϯͰ͸ͳ͍ϓϩηεΛɺϑΥΞάϥ΢ϯυϓϩηεͱݺͿɻ ( nginx΋confʹ daemon off; Λࢦఆͯ͠ϑΥΞάϥ΢ϯυϓϩηεʹͰ͖Δɻ ) 7 / 38
8. Կ͕໰୊ͳͷ͔ ϑΥΞάϥ΢ϯυϓϩηε͸ɺ୺຤ʹඥ෇͍͍ͯΔͨΊɺsshͰϩάΠϯͨ͠ઌͰ Կ͔ॏ͍ॲཧΛಈ͔͍ͯͨ͠Γͯ͠ɺ ωοτϫʔΫ͕੾ΕͨΓ͢Δͱɺ͓͔͠ͳ͜ ͱʹͳΔɻ atίϚϯυ΍cronͳͲͰ͸ͩΊͳͷ͔ʁnohupͱ͔͸ʁ ͍͍͚ͲɺdaemonΛεʔύʔόΠβͰ੍ޚͨ͠΄͏͕ΤϨΨϯτͩ͠ɺָɻ cron͸͍·͞Β࢖͏ؾʹͳΒͳ͍ɻ cronͩͱଟॏىಈΛࣗྗͰ๷͙ඞཁ͕͋Δɻ24hҎ্͔͔Δόονͱ͔ɻ ϩάͷग़ྗͱ͔΋Θ͔ΓͮΒ͍ɻ 8 / 38
9. runit daemontoolsͷޙܧɻCݴޠͰهड़͞ΕͨεʔύʔόΠβɻ γϯϓϧ & ΫϦʔϯɻ ϙʔλϒϧɻ खʹೃછΉɻ ϑΥΞάϥ΢ϯυϓϩηεͱdaemonͷؒͷΠϯϐʔμϯε͕ඇৗʹখ͍͞ɻ 9 / 38
10. runitΛ࢖͏ͱ ͦͷ৔͠ͷ͗ͷεΫϦϓτΛ࡞ͬͨͱ͢Δɻ ΰϛϑΝΠϧΛ࡟আͨ͠Γɺ ΰϛσʔλΛ࡟আͨ͠Γɺ ϩάΛղੳͨ͠Γɺ ঢ়ଶΛ֬ೝͯ͠௨஌ͨ͠Γɺ ͋ΔαΠτΛΫϩʔϧͯ͠ɺ৚݅Λຬͨ͢ͱࣗ෼ѼͯʹϝʔϧΛૹͬͨ Γɺ ͦΕΛɺrunitʹͿͬ͜ΉͱσʔϞϯ͕׬੒͢Δɻ (Φϓγϣϯ) ඪ४ग़ྗΛϩάʹ࢒ͤΔͷͰɺ໰୊ͷ੾Γ෼͚΋΍Γ΍͍͢ɻ 10 / 38
11. ;Θ;Θͱͨ͠࿩͸தஅͯ͠ɻ ز͔ͭͷྫͱσϞ 11 / 38
12. ྫ:hello world #!/bin/sh # shell echo hello world. `date` exec sleep 1 runͱ͍͏ϑΝΠϧ໊Ͱ࣮ߦՄೳϑΝΠϧΛͭ͘Δɻ ./run Ͱىಈ͢Δͱɺ୺຤Λ௨ͯ͠ੈքʹ͜ΜʹͪΘͱݴͬͯɺऴྃ͢Δɻ runit ؀ڥʹrunΛ์ΓࠐΉͱɺͦΕ(it)Λrun͠ଓ͚ͯ͘ΕΔɻࢮ׆؂ࢹɻ #!/usr/bin/env ruby # ruby puts("hello from ruby. #{rand(100)}"); sleep(1); #!/usr/bin/env ruby # ruby infinite loop while true puts("hello from ruby. #{rand(100)}"); sleep(1); end ແݶϧʔϓ൛ͷεΫϦϓτ͸ຊ࣭తʹnginxͳͲͷσʔϞϯͱมΘΒͳ͍ɻ 12 / 38
13. ྫ:railsىಈ #!/bin/sh echo ------------------------------ sleep 1 exec 2>&1 export HOME=/Users/nakatani # bundler need this stuff. export MONGO_HOST='localhost:27017' export SPROF_P=1 export SPROF_MODE=cpu export SPROF_DIR=/tmp/sprof # puma's port setting is bonehead. export PORT=3333 exec bundle exec rails server macbookىಈͨ͠Βɺ։ൃ؀ڥ͕ৗʹ্ཱ͕ͪͬͯΔɻ ΋ͪΖΜຊ൪؀ڥͰ࢖ͬͯ΋͍͍ɻ Կ͔ͷഥࢠʹམͪͯ΋ࣗಈతʹ࠶ىಈͯ͘͠ΕΔͷͰɺϝϯςφϯεϑϦʔɻ (஫ҙ) exec͠ͳ͍ͱࢠϓϩηε্ཱ͕͕ͪΓɺ؂ࢹ͔Β࿙ΕΔɻ 13 / 38
14. ྫ:͜ͷεϥΠυࣗ਎ #!/usr/bin/env ruby require 'webrick'; s = WEBrick::HTTPServer.new(:DocumentRoot => "./", :Port => 9999); s.mount_proc '/main' do |req, res| # ࣮͸ෆཁɻlocalhost:9999/a.htmlͰOK html = File.open('a.html').read(); res.body = html; end s.start(); ( runitͱؔ܎ͳ͍͚Ͳɺremarkͱ͍͏markdownΛεϥΠυʹͯ͘͠ΕΔϓϩμ ΫτΛ࢖ͬͯΔɻ ) rubyϫϯϥΠφʔͰwebߏஙͰ͖Δɻ ͦΕΛrunit؀ڥʹͿͬ͜Ί͹ɺϓϩμΫγϣϯ؀ڥ͕Ͱ͖͕͋Δɻ ϫϯϥΠφʔͱdaemonͱͷڥ໨͕ᐆດͰૉఢ 14 / 38
15. ಋೖɻmacOS ͱΓ͋͑ͣಈ͔͢ͷ͕ԿΛ͓͍ͯ΋ॏཁ 15 / 38
16. runitߏங on mac for user $ brew install runit $ mkdir ~/serviceu # any names work. $ sudo cat <<EOF |sudo tee /Library/LaunchDaemons/runitu.plist # nakatani͸ม͑ͯ ! <?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd" > <plist version='1.0'> <dict> <key>Label</key><string>runitu</string> <key>ProgramArguments</key> <array> <string>sh</string><string>-c</string> <string>PATH="/usr/local/sbin:/usr/local/bin:$PATH" exec chpst -u nakatani '/usr/local/bin/runsvdir' '/Users/nakatani/serviceu' </string> <string>;</string> <string>--pid=exec</string> </array> <key>Debug</key><false/><key>Disabled</key><true/><key>KeepAlive</key><true/> </dict> </plist> EOF $ sudo launchctl load -w /Library/LaunchDaemons/runitu.plist $ sudo launchctl list | grep runitu # ֬ೝɻ 16 / 38
17. ͔ΜͨΜʹղઆɻ homebrew͕͋Ε͹nakataniΛஔ͖׵͑Δ͚ͩͰಋೖՄ (I prefer macports) macOSͷඪ४εʔύόΠβ(launchd)ʹrunsvdirΛىಈ͍ͤͯ͞Δɻ launchctl load -w Ͱplistʹఆٛͨ͠಺༰Λlaunchd഑ԼͷσʔϞϯͱͯ͠ى ಈ͢Δ͜ͱ͕Ͱ͖Δɻ runsvdir͸~/serviceuΛ؂ࢹͯ͠daemonΛ্ཱͪ͛ͨΓ͢Δ΍ͭɻ mkdir ~/serviceu/hello/ͱ͢Δͱɺhello഑Լ͕daemon؀ڥʹͳ Δɻhello/supervise/͕ੜ੒͞ΕΔɻ ~/serviceu/hello/run ʹ࣮ߦՄೳͳεΫϦϓτΛஔ͘ͱɺdaemonͱ࣮ͯ͠ߦ ͞ΕΔɻ chpstίϚϯυͰrunsvdirͷΦʔφʔΛnakatani(nakatani)ʹมߋ͍ͯ͠Δɻ ৄ͍͜͠ͱ͸ࣗ෼Ͱௐ΂͍ͯͩ͘͞ɻmanίϚϯυɺweb৘ใɺqiitaɺblogͱ͔ɻ 17 / 38
18. runitߏங on mac for root $ brew install runit # macports feels better for me, but... $ sudo mkdir /service $ sudo cat <<EOF |sudo tee /Library/LaunchDaemons/runit.plist <?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd" > <plist version='1.0'> <dict> <key>Label</key><string>runit</string> <key>ProgramArguments</key> <array> <string>sh</string><string>-c</string> <string>PATH="/usr/local/sbin:/usr/local/bin:$PATH" exec '/usr/local/bin/runsvdir' '/service' </string> <string>;</string> <string>--pid=exec</string> </array> <key>Debug</key><false/><key>Disabled</key><true/><key>KeepAlive</key><true/> </dict> </plist> EOF $ launchctl load -w >/Library/LaunchDaemons/runit.plist $ launchctl list | grep runit 18 / 38
19. ΞοϐʔϧϙΠϯτ 19 / 38
20. daemonͱͷڑ཭͕͍ۙ ϫϯϥΠφʔ͔Βൃలͤͨ͞खݩͰಈ͘εΫϦϓτΛɺͦͷ··runitʹͿͬ͜ ΉͱdaemonʹͳΔɻ ~/serviceu/hello/log/runΛઃఆ͓ͯ͘͠ͱɺ~/serviceu/hello/runͷग़ྗ͕ ϩάʹ࢒Δɻ #!/bin/sh exec svlogd -ttt . launchdͷxmlϑΝΠϧ͸ृѱͰ͸ͳ͍Ͱ͔͢ʁ runitͩͱɺͲΜͳݴޠͰ΋run͑͞༻ҙ͢Ε͹ಈ͖·͢Αɻ 20 / 38
21. busybox͕࠾༻͢Δ΄Ͳ͍͢͝ busybox͸ɺunixͷϢʔςΟϦςΟΛ1όΠφϦʹऩΊͨ΋ͷʢ·ͨ͸ऩΊΔ࢓૊ ΈΛఏڙ͢Δ΋ͷʣɻ cpͱ͔lsͱ͔ɺجຊπʔϧ͕ೖͬͯΔɻ૊ࠐܥͱ͔Ͱ࢖ΘΕͨΓ͢Δɻ ݫબʹݫબΛॏͶͨϚϧνπʔϧͷΑ͏ͳ΋ͷͰ͋Δɻ busyboxʹrunitೖͬͯ·͢ɻศརͩͱೝࣝ͞Ε͍ͯΔΘ͚Ͱ͢ɻ 21 / 38
22. ؀ڥΛύοέʔδԽͰ͖Δɻ ϓϩηεͱ͍͏ͷ͸ɺҰछͷԾ૝ϚγϯͰ͋Δɻ ϓϩηεͱ஥ྑ͘ͳΔͱɺdockerͱ͔jail͕େ͛͞ʹࢥ͑Δ͜ͱ͕͋Δɻ runitͩͱɺҎԼͷΑ͏ʹɺmedley಺෦ʹੈքΛด͡ࠐΊΔ͜ͱ͕΍Γ΍͍͢ɻ /service/medley/run # ϝΠϯσʔϞϯɻrailsͱ͔ɻ /service/medley/supervise # εʔύʔόΠβʔ͕࢖͏৘ใɻී௨͸ؾʹ͠ͳ͍ɻ /service/medley/log/run # ϩΨʔ /service/medley/log/current # ϩά /service/medley/log/xxxxxxxx.s # ݹ͍ϩά /service/medley-nginx/ # nginx /service/medley-mongo/ # mongo /service/job-medley/... medley಺෦ʹඞཁͳͳΜ΍͔Μ΍Λߏ੒͢Ε͹ɺ؀ڥΛͻͱ·ͱΊʹͰ͖Δɻ 22 / 38
23. runitʹ͍ͭͯͪΐͬͱղઆ 23 / 38
24. runitΛߏ੒͢ΔίϚϯυ܈ $ brew list runit /us../bin/runsvdir # σΟϨΫτϦΛ؂ࢹͯ͠daemonͷ௥Ճɾ࡟আͳͲΛ؅ཧ͢Δɻ /us../bin/runsv # σΟϨΫτϦ഑Լͷ֤daemonΛ؅ཧ͢Δɻ /us../bin/sv # daemonΛ੍ޚ͢ΔίϚϯυɻ /us../bin/svlogd # daemonͷग़ྗΛϩάʹམͱ͢ɻ /us../bin/chpst # ϓϩηεͷ࣮ߦϢʔβͳͲΛมߋ͢Δπʔϧɻchange process sta tusɻ /us../bin/runit /us../bin/runit-init /us../bin/runsvchdir /us../bin/utmpset /us../share/man/ (9 files) # man svͱ͔ͰϚχϡΞϧݟΕ·͢ɻ 24 / 38
25. svͰdaemonΛ੍ޚ͢Δɻ $ cd ~/serviceu/ $ mkdir -p hello/log # logΛಉ࣌ʹͭ͘Δͱrunsvdir͕logͷ४උ΋͢Δ $ cd hello $ cat <<EOF > run #!/usr/bin/env ruby while true puts("hello ruby #{Time.now.to_i % 100}"); STDOUT.flush(); sleep(1); end EOF $ cat <<EOF > log/run #!/bin/sh exec svlogd -ttt . EOF $ chmod 755 run log/run $ tail -F log/current # ϩά͕ݟΒΕΔɻ $ sv st . # daemonͷঢ়ଶΛ֬ೝ͢Δɻ run: .: (pid 35517) 46s; run: log: (pid 34727) 456s $ sv st /Users/nakatani/serviceu/hello/ # σΟϨΫτϦͷࢦఆํ๏͸ࣗ༝ɻ $ sv t . # TERMγάφϧΛdaemonʹૹΔ $ sv st . run: .: (pid 35589) 1s; run: log: (pid 34727) 470s # ىಈ͕࣌ؒ1sʹͳͬͯΔɻ 25 / 38
26. svͰdaemonΛ੍ޚ͢Δɻ(2) $ sv x . # runsvΛఀࢭ͢Δɻ $ sv down . # daemonΛҰ࣌తʹఀࢭ͢Δɻ $ sv up . # down͔Βupʹɻ $ touch down # downͱ͍͏ϑΝΠϧ͕͋ΔͱϚγϯ࠶ىಈޙɺࣗಈىಈ͠ͳ͍ɻ ৭ʑγάφϧ͓͘ΕΔɻsvͷmanʹৄ͘͠ॻ͍ͯΔɻ runҎ֎ʹfinishͱ͍͏εΫϦϓτΛ༻ҙ͓ͯ͘͠ͱɺrun͕ऴྃ͢ΔλΠϛϯάͰ finishΛ࣮ߦͯ͘͠ΕΔɻ 26 / 38
27. ͓Θ͔Γ͍͚ͨͩͨͩΖ͏͔ ී௨ͷunixͷ࣮ߦϑΝΠϧΛͦͷ··daemonʹͰ͖Δɻ ઃఆϑΝΠϧͰ͸ͳ͘unixͷapi੍͕ޚͷجຊʹͳ͍ͬͯΔͷͰࣗ༝౓͕ߴ ͘ɺ໰୊ͷ੾Γ෼͚͕͠қ͍ɻ γϯϓϧͳπʔϧ܈Ͱߏ੒͞Ε͍ͯͯɺ͍͍ͩͨͷ؀ڥͰಈ͘ɻ busyboxʹ ೖͬͯͨΓ͢ΔͷͰɺੲios(jailbroken)Ͱಈ͔ͨ͠هԱ͕͋Δɻ macͷ/service഑ԼΛຊ൪ʹ͍͚࣋ͬͯ͹ຊ൪ߏங׬ྃɺͱ͔Ͱ͖Δɻ dockerͬͯେ͛͞͡Όͳ͍ʁ runit࢖͏ͨΊʹ͸yum΍apt (brew, macports, pkg, ports, tar-ball)ͳͲͰ؀ ڥΛߏங͢Δඞཁ͕͋Δͷ͕σϝϦοτɻ medleyͷpumakillerΛ࡞ͬͨࡍ͸ɺඪ४ͷupstartͰࡁ·ͤͯ͠·ͬͨɻ beanstalkʹrunitΠϯδΣΫτͨ͠Γ͢ΔͷͩΔ͍ɻ 27 / 38
28. appendix 28 / 38
29. ڝ߹:launchd,systemd,upstart launchd mac޲͚ɺxmlμα͍ɺߴػೳ͕ͩͱ͖ͬͭʹ͍͘ɻ upstart ubuntu։ൃͯ͠Δͱ͜Ζ(ΧϊχΧϧ)͕࡞ͬͨɻΦϫίϯѻ͍ɻubuntu΋ݱ ߦͰ͸systemd࢖ͬͯΔɻ ݱߦamazon linux(cent5ϕʔε)͸upstart࢖ͬͯ ΔɻಠࣗͷઃఆϑΝΠϧΛهड़͢Δɻ systemd gnu linuxք۾͸systemd͕ϝδϟʔͬΆ͍ɻ ಠࣗͷઃఆϑΝΠϧΛهड़͢ Δɻ 29 / 38
30. runsvdir΋ී௨ͷϓϩηεɻ macͰ͸launchdʹ໘౗ݟͯ΋Β͍ͬͯΔ͕ɺ؀ڥʹΑͬͯɺinit,systemd,upstart ͳͲͰىಈ͢ΔɻϑΥΞάϥ΢ϯυϓϩηεͱͯ͠ىಈͯ͠΋΋ͪΖΜಈ͘ɻ runsvdir഑ԼͷαʔϏεͰɺrunsvdirΛىಈͯ͠֊૚ߏ଄ΛߏஙͰ͖Δɻ /service/ # rootͷαʔϏε /service/runsvdir-usr1/ # exec chpst -u usr1 runsvdir /Users/usr1/service Λ # runͰىಈ͢Δͱɺusr1Ϣʔβʔ༻ͷαʔϏεΛ؅ཧͰ͖Δ /service/runsvdir-xx/ /service/runsvdir-yy/ 30 / 38
31. ࡶଟͳϢʔεέʔε 31 / 38
32. ྫ:nginx run #!/bin/sh exec nginx -c `pwd`/nginx.conf nginx.conf worker_processes 1; daemon off; error_log /dev/stdout info; events { worker_connections 1024; } http { include mime.types; ... ϙʔτɺઃఆม͑ͯෳ਺ىಈͰ͖Δɻ 32 / 38
33. ྫ:mongod #!/bin/sh sleep 2 exec mongod --profile 2 --slowms 20 --dbpath ./mongodb --logpath ./log/mongodb.lo g ϙʔτΛࢦఆͯ͠ز্ཱ͔͓͚ͭͪ͛ͯ͹ɺෳ਺؀ڥ४උͰ͖Δɻ 33 / 38
34. ྫ:emacsΛσʔϞϯͰ্ཱ͓ͪ͛ͯ͘ daemonʹemacsclientͰͭͳ͛ΔΑ͏ʹ͢Ε͹৭ʑ͸͔ͲΔɻ emacs --daemon Λ·ͱ΋ʹϑΥΞάϥ΢ϯυͰىಈ͢Δͷ͸೉ͦ͠͏ͰఘΊͨɻ .bashrcʹҎԼͷΑ͏ͳ΋ͷΛ͔͍͓ͯ஡Λ୙ͯ͠Δɻ function ec() { if ! pgrep -U`whoami` [e]macs ; then emacs --daemon fi emacsclient $* } alias ecnw="ec -nw" 34 / 38
35. ྫ:σΟϨΫτϦ؂ࢹͯ͠build͢Δ ࣗ෼Ͱ࡞Βͳͯ͘΋jsͩͱ৭ʑ༻ҙ͞Ε͍ͯͨΓ͢Δɻ ͜͜Ͱॏཁͳͷ͸ɺϓϩμΫτʹཔΒͳͯ͘΋ࣗ෼ͰಠࣗͷԿ͔ΛߏஙͰ͖Δ͜ͱ Ͱ͋Δɻ CͰ։ൃ͍ͯ͠Δ৔߹ɺιʔεͷมԽΛݕ஌ͯ͠makeΛ࣮ߦ͢Δͱ͔ɺ #!/usr/bin/env ruby require 'listen'; tgtpath='/Users/nakatani/dev/medley/medley-ghost/frontend'; listener = Listen.to(tgtpath) do |mod, add, rem| Dir.chdir(tgtpath); puts "npm rebuild start"; res = system('npm run build'); puts "npm rebuild end"; res = system('sv t /Users/nakatani/service/medley-ghost-nginx/'); puts "reboot nginx res:#{res}"; end listener.start; # not blocking sleep; 35 / 38
36. ྫ:API։ൃதɺͱΓ͋͑ͣ200Λฦ͢· ͰɺԆʑͱcurl͠ଓ͚Δ golangͷapiΛमਖ਼͠Α͏ͱͨ͠Γɺgolang͔ΒrailsʹҠߦ͠Α͏ͱͨ͠ͱ͖ɺ ಈ ࡞֬ೝͰ͍͍ͪͪcurlίϚϯυΛଧͬͨΓɺϒϥ΢βΛૢ࡞͢Δͷ͸അࣛΒ͘͠ ͳͬͯ͘Δɻ ࣮ߦ͍ͯ͠ΔcurlίϚϯυΛrunεΫϦϓτʹసهͯ͠গ͠मਖ਼͠ɺ 2ඵ͓͖ʹ࣮ ߦͭͭ͠tail -FͰϩάΛ΢Υον͢Δɻ ͏·͘ಈ࡞͔ͨ͠Ͳ͏͔͸ϩάͰݕ஌Ͱ͖Δɻ 36 / 38
37. ྫ:ࠓ೔ͷam 1:00ʹߪೖͰ͖Δ͸ͣͷ ΋ͷ͕͋Δ͕ɺϒϥ΢βϦϩʔυ͕ ͔ͭΕͨɻ αΠτΛΫϩʔϧ͠ɺมԽΛݕ஌ͯ͠ϝʔϧΛૹΔͳΓԿͳΓɻ 37 / 38
38. ྫ:΋͏ؼΓ͍͚ͨͲɺؼΓࡍʹҰͭ ॏ͍ॲཧΛຊ൪؀ڥͰ࣮ߦ͍ͨ͠ɻ atίϚϯυͰ΍ͬͯ΋͍͍͚Ͳɺ runεΫϦϓτͰ΍ͬͯ΋͍͍ɻ runεΫϦϓτ ͷઓಆͰɺtouch downΛ࣮ߦ͢ΔΑ͏ʹ͓ͯ͘͠ͱɺ ىಈ͸Ұ౓͖ΓʹͳΔɻ findͯ͠ΰϛϑΝΠϧΛ࡟আ͢Δͱ͔ɺ σʔλΛόοΫΞοϓ͓ͯ͘͠ͱ͔ɻ 38 / 38