レガシーなAnsibleを改善していくための方針/How to improve the legacy Ansible

by tom-256

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ϨΨγʔͳ"OTJCMFΛ վળ͍ͯͨ͘͠Ίͷํ਑ "OTJCMF/JHIUJO5PLZP

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XIPBNJ 5XJUUFSUB 8FCۀք೥໨ όοΫΤϯυΤϯδχΞ GSPNۚ୔ࢢ

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Զͷʢࢲͷʣ"OTJCMFܦݧஊ

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ϨΨγʔͳ"OTJCMFΛͲ͏΍ͬͯ௚͍͔ͯ͘͠ʁ

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͸ͳ͢͜ͱ

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ɾഎܠ ɾΊ͟͢ͱ͜Ζ ɾϦϑΝΫλ·ͰͷಓͷΓ ɾϦϑΝΫλํ਑ ɾ·ͱΊ

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എܠ

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ߏ੒ਤ ΦϯϓϨ IPTUT୆ QSETUHEFW $POUSPM.BDIJOF .BOBHFNFOU/PEF TTI

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ɾαʔόʹखಈͰมߋΛՃ͑ͯ͋Δ ɾ݅Λ௒͑ΔDIBOHFE ɾ$IFDLNPEF͕GBJMFE͢Δ ɾҎલ͍࣮ͭߦ͞Ε͔ͨఆ͔Ͱ͸ͳ͍ ɾTUHͱQSEͰࠩҟ͕͋Δ ɾWFSTJPO ೥य़࣌఺

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Ί͟͢ͱ͜Ζ

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Ί͟͢ͱ͜Ζ QMBZCPPLͱαʔόͷࠩ෼͕ͳ͍ ႈ౳ੑ͕୲อ͞Ε͍ͯΔ ճ໨Ҏ߱͸DIBOHFE ɹ΋͘͠͸ɺDIBOHFE͕ආ͚ΒΕͳ͍৔߹ OBNFͳͲͰͦΕ͕Θ͔ΔΑ͏ʹͳ͍ͬͯΔ

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Ί͟͢ͱ͜Ζ ఆظతʹ࣮ߦ͞Ε͍ͯΔ ࣮ߦཤྺ͕؅ཧ͞Ε͍ͯΔ

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ϦϑΝΫλ·ͰͷಓͷΓ

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Քಇ͍ͯ͠Δαʔόͱͷࠩ෼Λͳ͘͢ αʔόͷίϐʔΛͱͬͯݕূ؀ڥΛ࡞Δ ݱࡏՔಇ͍ͯ͠Δαʔόͷઃఆ஋Λίʔυʹ൓ө͢Δ "OTJCMFΛ࣮ߦݕূ͢Δ ໰୊ͳ͍͜ͱ͕֬ೝͰ͖ͨΒຊ൪αʔόͰ࣮ߦ͢Δ

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Քಇ͍ͯ͠Δαʔόͱͷࠩ෼Λͳ͘͢ ɾҰ୴݅௒ͷDIBOHFE͸ແࢹ ɾ$IFDLNPEF͕GBJMFE͢ΔͷΛमਖ਼

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"OTJCMFͷόʔδϣϯΛ্͛Δ ɾ࠷৽ͷ҆ఆ൛ʹ্͛Δ ɾಈ࡞ݕূΛ͢Δ

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͜ΕͰαʔόͱQMBZCPPL͕ಉ͡ঢ়ଶʹͳͬͨ ࣍͸ํ਑ΛܾΊΔ

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ϦϑΝΫλํ਑

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ͳΔ΂͘UBTLͷத਎͸৮Βͣʹ֎ງΛຒΊ͍ͯ͘

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·ͣ͸$*؀ڥΛ੔͑Δ ɾ"89ͷಋೖ ɾ$*ͷಋೖ

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"89ͷಋೖ ɾ࣮ߦཤྺ͕࢒ͬͯͳ͍ ɾ"OTJCMFͷϗετʹ௚઀44)ͯ͠࡞ۀͨ͘͠ͳ͍ &$Ͱ"OTJCMF"89ΛཱͯΔ &$ &*1ͷ࠷খݶߏ੒Ͱ࡞Δ

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"89ͷಋೖ ެࣜʹ$'OςϯϓϨʔτ͕͋Δ͕ɺࠓճͷέʔεʹରͯ͠৑௕ ͳͷͰݟૹΓ https://aws.amazon.com/jp/quickstart/architecture/awx/

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$POUSPM.BDIJOF "89 .BOBHFNFOU/PEF

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$*ͷಋೖ $JSDMF$*&OUFSQSJTFͰύΠϓϥΠϯ࡞੒ (JU)VC"DUJPOT͸(JU)VC&OUFSQSJTFʹରԠͯ͠ͳ͍ͨΊ ݟૹΓ

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$*ͷಋೖ ΍Γ͍ͨ͜ͱ ϦϞʔτCSBODIʹQVTI ͍ܰॲཧ ɾ੩తղੳ TZOUBYDIFDL BOTJCMFMJOU ɾςετ Ϣχοτςετ

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QVTISFNPUFCSBODI BOTJCMFQMBZCPPL ɾTZOUBYDIFDL ɾBOTJCMFMJOU ɾVOJUUFTU

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$*ͷಋೖ ΍Γ͍ͨ͜ͱ ඇಉظPSεέδϡʔϧ࣮ߦ ॏ͍ॲཧ ɾႈ౳ੑͷݕূ ɾςετ ౷߹ςετ

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$POUSPM.BDIJOF "89 .BOBHFNFOU/PEF 13NBSHF UPXFSDMJ ݕূ༻αʔό ɾEFQMPZ ɾ*OUFHSBUJPOUFTU

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͜ΕͰݕূαΠΫϧ͕੔ͬͨ ͔͜͜ΒϦϑΝΫλϦϯά

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ɾ࢖ΘΕ͍ͯͳ͍SPMFͷ࡟আ ɾϢχοτςετͷಋೖ ɾϩʔΧϧݕূ؀ڥΛ࡞Δ ɾσΟϨΫτϦߏ੒ΛϕετϓϥΫςΟεʹ ɾSPMF୯ҐͰλά෇͚ ɾ࣮ߦ࣌ؒͷܭଌ ɾύϑΥʔϚϯενϡʔχϯά ɾႈ౳ੑͷमਖ਼

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࢖ΘΕ͍ͯͳ͍SPMFΛ࡟আ ߏ੒ਤΛݩʹલ೚ऀʹ஍ಓʹ֬ೝ

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Ϣχοτςετͷ௥Ճ ɾϦϑΝΫλ͍ͯ͘͠ࡍʹ࠷௿ݶͷηʔϑωοτΛઃ͚͍ͨ 1"5)ɺϓϩηεͷঢ়ଶɺϙʔτͷ֬ೝ "OTJCMFͷUBTLͱͯ͠Ϣχοτςετ௥Ճ ɹUFTUJOGSBֶशίετͷ఺͔ΒݟૹΓ

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ϩʔΧϧݕূ؀ڥΛ࡞Δ ɾUBTLʹมߋΛՃ͑ͨͱ͖ɺ ɹຖճϦϞʔταʔόʹରͯ͠ݕূ͢Δͷ͸େม ɾႈ౳ੑ֬ೝͷͨΊ࡞ͬͯյͤΔ؀ڥ͕΄͍͠

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ϩʔΧϧݕূ؀ڥΛ࡞Δ ݕূ༻%PDLFS؀ڥΛ༻ҙ͢Δ ɾ$*Ͱ࢖༻͢Δ͜ͱ΋ߟྀ͠ɺ7BHSBOUͰͳ͘%PDLFSΛબ୒ ɾύεϫʔυ͋ΓͩͱTVEPͰ͖ͳ͍όά͕͋Δ https://github.com/ansible/ansible/issues/31759 ɾطଘΦϯϓϨαʔόͱͷࠩҟ͸ߟྀͷඞཁ͋Γ

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σΟϨΫτϦߏ੒ΛϕετϓϥΫςΟεʹ ɾSPMFTσΟϨΫτϦ͕ͳ͍ IPHF@SPMFTDFOUPTʜͷΑ͏ͳσΟϨΫτϦߏ੒ ɾSPMF͕̎ͭͷσΟϨΫτϦʹผΕ͍ͯΔ ɾ૬ରύεࢦఆͩΒ͚

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σΟϨΫτϦߏ੒ΛϕετϓϥΫςΟεʹ https://docs.ansible.com/ansible/latest/user_guide/ playbooks_best_practices.html#alternative-directory-layout HSPVQIPTU͝ͱʹม਺͕ҟͳ͍ͬͯͨͷͰɺ"MUFSOBUJWF %JSFDUPSZ-BZPVUΛ࢖༻

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σΟϨΫτϦߏ੒ΛϕετϓϥΫςΟεʹ SPMFͷ૬ରύεࢦఆ͕ͳ͘ͳͬͨ QMBZCPPL࣮ߦ࣌ͷίϚϯυ΋୹͘ͳͬͨ QMBZCPPL͕؀ڥ͝ͱʹผΕ͓ͯΓ؅ཧ͕େม͕ͩ·ͱΊΔͷ ͸ϘϦϡʔϜ͕େ͖͍ͷͰޙճ͠ʜ

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SPMF୯ҐͰλά෇͚ ్தͰGBJMFEͨ͠ͱ͖ʹGBJMFEͨ͠SPMF͔Β࣮ࢪ͍ͨ͠ SPMF୯ҐͰλάΛ͚ͭΔ UBHTIPHF BOTJCMFQMBZCPPLTJUFZNMUBHTIPHF

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࣮ߦ࣌ؒͷܭଌ ႈ౳ੑΛ௚͢ࡍʹɺ͕͔͔͍࣌ؒͬͯΔ΋ͷ͔Β௚͍ͨ͠ $BMMCBDL1MVHJOTͷQSPpMF@UBTLTΛ࢖͏ ansible.cfg [defaults] callback_whitelist = profile_tasks

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ύϑΥʔϚϯενϡʔχϯά ެࣜ#MPHΛࢀরͯ͠ઃఆ͢Δ IUUQTXXXBOTJCMFDPNCMPHBOTJCMFQFSGPSNBODF UVOJOHBOTJCMFDGH ansible.cfg [defaults] pipelining = True ssh_args = -o ControlMaster=auto -o ControlPersist=300s

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ႈ౳ੑͷमਖ਼ ࣌ؒͷ͔͔Δ΋ͷ͔Βमਖ਼͍ͯ͘͠ ຖճιʔεͷ%-ͱίϯύΠϧΛ͍ͯ͠ΔUBTLͳͲ ɾTIFMM DPNNBOENPEVMFΛ୅ସͰ͖ͳ͍͔ݕ౼͢Δ ɾXIFOTUBUFNFOUΛ࢖༻͢Δ

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·ͱΊ

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ϨΨγʔͳ"OTJCMFͱૺ۰ͨ͠ͱ͖͸ ɾ$*؀ڥΛͭͬͯ͘଍৔ΛݻΊΑ͏ ɾςετΛॻ͍ͯ֎ງΛຒΊΑ͏ ɾஈ֊తʹվળ͠Α͏ ɾܭଌɾվળαΠΫϧΛճͦ͏ ɾͳΔ΂͘#FTU1SBDUJDFTʹد͍ͤͯ͜͏ ɾϓϩμΫτͷϑΣʔζΛݟࣺͯͯΔํ޲ੑ΋ߟ͑Α͏

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͓ΘΓ