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人間たちとsystemd
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KONDO Uchio
April 23, 2016
Technology
5.1k
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人間たちとsystemd
@コンテナ勉強会
http://ct-study.connpass.com/event/28449/
KONDO Uchio
April 23, 2016
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Transcript
TZTUFNEͬ͘͟Γೖ GMO Pepabo, Inc. Uchio Kondo 2016/04/23 ίϯςφܕԾԽͷใަձˏԬ ਓؒͨͪͱTZTUFNE
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੍ݶࣄ߲ 04ͳͲͷϨΠϠʔɺਖ਼Θ͔͍ͬͯͳ͍͠ɺ ΧʔωϧͷίʔυಡΜͩ͜ͱ͕͋Γ·ͤΜ ʮ࣮ʜʜ͖͔ͬ͞Β͕͍͑ͯΔοʜʜʯ
ਓؒͨͪͷͨΊͷ TZTUFNE֓ཁ
JOJUʢ͋Δ͍ͦͷସʣ ࠷ॳʹىಈͯ͠ɺͨ͘͞ΜͷαʔϏεͲΛ ্ཱͪ͛ͯཧ͢Δ $FOU04ͳͲʜTZTWJOJU $FOU046CVOUVʜ6QTUBSU 049ʜMBVODIE
ʜʜ
JOJUTDSJQU
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TZTUFNEͬ͘͟Γ ࠾༻ σΟετϦ αʔϏε ఆٛ 04 റΓ DHSPVQ OBNFTQBDF ͱ࿈ܞ
ૢ࡞ίϚϯυ JOJU TDSJQU $FOU04 ͳͲ͍Ζ͍Ζ JOJUTDSJQU 4IFMMεΫϦϓτ ͳ͍ εΫϦϓτ TFSWJDF 6QTUBSU $FOU04 ࠷ۙ·Ͱͷ 6CVOUV ಠࣗܗࣜͷ DPOG FUDJOJU DPOG ͳ͍ TFSWJDFJOJUDUM TZTUFNE $FOU04d 6CVOUVd ΄͔ 6OJUϑΝΠϧ -JOVY ͷΈ ͍ͬͯ͘ TZTUFNDUM TFSWJDF ˞6CVOUV͔Βར༻Մೳ
3FUIJOLJOHPG1*% จ͕ͩʜ ͬ͘͟Γ ىಈεΫϦϓτɺ݁ہશ෦γΣϧεΫϦϓτͩͬͨΓɺҰ ݸҰݸىಈͰ͠ΜͲ͔ͬͨΓɺDHSPVQͱ͔φౕ͍ͱͷ ࿈ܞେมͩΑͶʜʜ
ͦ͜ͰTZTUFNEɺͱ͍͏ײ͡Β͍͠ ˞IUUQQPJOUFSEFCMPHQSPKFDUTTZTUFNEIUNM
TZTUFNEΛ ͬͯΈΔ
6OJUϑΝΠϧ ಠࣗܗࣜ JOJ෩ એݴత ʮUBSHFUʯʮNPVOUʯʮTFSWJDFʯʮEFWJDFʯ ͳͲͷछྨ͕͋Δ
6OJUಉ࢜ґଘ͕ؔ͋Δ
ྫόΠφϦҰݸͷαʔϏε
ྫόΠφϦҰݸͷαʔϏε આ໌ͷ΄͔ɺґଘ͢Δ6OJUϑΝΠϧɺ ىಈॱংΛهड़ ίϚϯυɺ࣮ߦϢʔβʔɺ લޙʹൃߦ͢ΔίϚϯυɺڥมɺ DHSPVQTͷ੍ݶͳͲ ϥϯϨϕϧ૬Λهड़
ྫఆظ࣮ߦλΠϚʔ
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TZTUFNEͱ Ϧιʔε੍ݶ
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όΠφϦͻͱͭΈ͍ͨͳͱ͖ɺϥούʔΛ͔· ͢ʁ͍͍ʜʜ
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TZTUFNEͱ ϑΝΠϧγεςϜͷlz
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αʔϏεଆͰUNQ
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VOTIBSF ͱ -JOVYOBNFTQBDFͱ ϓϩηε͝ͱʹɺΞΫηεͰ͖ΔϦιʔεΛ͚Δ͜ͱ͕ Ͱ͖Δػೳ VOTIBSFΛݺͿͱ֘ϓϩηεͰ
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TZTUFNE ͨͩͷJOJUͷସͰͳ͍ DHSPVQ-JOVYOBNFTQBDFͱ ݁ߏີʹ࿈ܞͰ͖ɺ৭ʑͳ͍ಓ͕͋Γͦ͏ ʢͦ͏ׂ͍͑Ѫ͠·͕ͨ͠ɺDBQBCJMJUZ͍͡Ε·͢ʣ > CapabilityBoundingSet=CAP_NET_ADMIN
CAP_NET_RAW …
TZTUFNEͷϝϦοτॴײ 6OJUϑΝΠϧͰએݴతʹαʔϏεఆٛɺ ґଘɺϦιʔεͷɺΛఆٛͰ͖Δ DHSPVQMJOVYOBNFTQBDFͷৄࡉͳ"1*ʹ ৄ͘͠ͳͯ͘ɺTZTUFNEͷσΟϨΫςΟϒ͕ ϥοϓͯ͘͠ΕΔͷͰɺ༰қʹར༻Ͱ͖Δ TZTUFNEਓؒͨͪʹ༏͍͠ʂ
DPOUBJOFSWTTZTUFNE TZTUFNE͚ͩͰͰ͖Δ͜ͱ͕݁ߏ͋Δ Ͱ͖ͳ͍͜ͱ͋Δɻ1*%ͷͱ͔͕ͦ͏ %PDLFSͱTZTUFNEͷ࿈ܞͷྫ͋Δ IUUQFOBLBJIBUFOBCMPHDPNFOUSZ
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TZTUFNEపఈೖ!-JOVYঁࢠ෦ ಉ IUUQXXXTMJEFTIBSFOFUFOBLBJMJOVY ͷൃදSZ DPOTVMUFNQMBUFΛTZTUFNEͰಈ͔͢ͱ͖ͷֶͼ IUUQUPNPIJTBPEBDPNQPTUTVTF@TZTUFNE@XJUI@DPOTVMUFNQMBUFIUNM