network-programmability

by KATSUYA

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ωοτϫʔΫͷࣗಈԽ πʔϧ࠷લઢ উஉ(@katu7414) ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࣗݾ঺հ Network Automation https://github.com/Katsuya414 SR,Batfish,Ansible,PyATS,Genie JANOG43 LTͰॳొஃ NETCONओ࠵ऀ !LBUV !2 ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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࣭໰ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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Interop Tokyo or AWS summit ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ͲͪΒʹߦ͖·͔ͨ͠ʁ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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Cisco live

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ษڧձॳࢀՃͰ͢ ΑΖ͓͘͠ئ͍͠·͢ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࠓճ͸ࣗ෼͕࢖͍ͬͯΔ ωοτϫʔΫͷࣗಈԽͷπʔϧ ൺֱ͠·͢ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࣗಈԽ͢΂͖ର৅෺ • ଟछଟ༷ͳωοτϫʔΫػث • OSͷόʔδϣϯ΋όϥόϥ • ssh΋ରԠ͍ͯ͠ͳ͍ • ݱঢ়ͷυΩϡϝϯτ΋੔උ͞Εͯͳ͍ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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࢖͍ͬͯΔࣗಈԽπʔϧ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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• conﬁgมߋ͢ΔͳΒҰ൪ศར • ֶशίετ͕௿͍ͷͰνʔϜϝϯόʔʹਁಁ ͠΍͍͢ • ίʔυ͕ಡΈ΍͍͢ͱݴ͏ͷ͸ࣗಈԽ͢Δʹ ͋ͨͬͯ࠷΋ॏཁͳཁૉͷҰͭ • ϚϧνϕϯμʔରԠ͋Γ͕͍ͨ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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Ansible Example code - hosts: iosxr gather_facts: no connection: local tasks: - name: configure interface settings iosxr_config: lines: - router static - router static vrf SHIMA - router static vrf SHIMA address-family ipv4 unicast ίʔυ͕ಡΈ΍͍͢ͷ͸ ࠾༻ཧ༝ʹͳΔ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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• conﬁgͷ੩తͳςετπʔϧͱͯ͠͸͔ͳΓ༏ल • L3ϨΠϠʔͷςετ͸׬ᘳ • Docker image͋ΔͷͰߏஙָ͕ • ຊ൪ͷIPͰࢼݧͰ͖ΔͷͰ༏ल ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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Batﬁsh͔Βͷ৘ใ DPOpHΛૠೖ͢Δ͚ͩͳͷͰ঎༻ʹӨڹ͸ͳ͘ ݸਓϨϕϧͰݕূ͠΍͍͢ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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• Python Automated Test Systems ͷུ • pyATS ͷϑϨʔϜϫʔΫͷ্Ͱಈ͘ػೳϥΠϒϥϦ • conﬁgͷparse͕༏ल(ͪΌΜͱ੔ܗͯ͘͠ΕΔ) • recordingػೳ͕༏ल • YAML + Pythonͷߏ੒ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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pyats_genie Example Run Results (pyats_genie) shimakatsuyanoMacBook-puro:workshop shimakatsuya$ python test.py [2019-06-18 14:53:29,022] +++ nx-osv-1 logfile /tmp/nx-osv-1- cli-20190618T145329021.log +++ [2019-06-18 14:53:29,022] +++ Unicon plugin nxos +++ -------------------------------------------------------------------------------- Hostname: nx-osv-1 Software Version: NX-OS 7.3(0)D1(1) BGP Instance VRF Neighbor State -------------- ------- ---------- ----------- default default 10.1.1.1 established Total # of Active Neighbors: 1 -------------------------------------------------------------------------------- ៉ྷʹ੔ܗ͢Δͷ͕ͱͯ΋ָ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ඞཁͳࣄલ஌ࣝͷ গͳ͞ ˓ ˚ ˚ ͓खܰ͞ ˚ ˓ ˓ υΩϡϝϯτͷ ॆ࣮ੑ ˕ ˚ ˚ πʔϧͷศར͞ ˓ ˓ ˕ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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1$ αʔόʔ ߏ੒ਤ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࣗಈԽͰॏཁͳ͜ͱ ର৅ͷϝϯόʔͷٕज़Ϩϕϧ΋ߟྀ͢Δ͜ͱ Ұ൪େࣄͳͷ͸πʔϧͰ͸ͳ͘υΩϡϝϯτͷ੔උ πʔϧ͸ͱΓ͋͑ͣ࢖ͬͯΈ͔ͯΒࣗ෼ͷνʔϜʹ దਖ਼͔ʁΛߟ͑Α͏ ࣗಈԽ͸ඞཁͳ͜ͱͩͱશһ͕ೝࣝ͠ͳ͍ͱਐ· ͳ͍ɻઆ໌΍Θ͔Γ΍͢͞΋ඞཁ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࠓޙ௅ઓ͢Δ͜ͱ ؂ࢹπʔϧ(Datadog౳΋͘͠͸ࣗ࡞) ՄࢹԽπʔϧ(ࣗ࡞͍ͨ͠ΞΠσΞืू) BatfishͷL2໰୊ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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ࠓճͷπʔϧ౳ͷϒϩά • https://qiita.com/katu7414/items/ ccef158f5999ce809a3d • https://qiita.com/katu7414/items/bb9ebf74d01936e3c662 • https://qiita.com/katu7414/items/8e60b8b8f4034009e734 ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ

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͋Γ͕ͱ͏͍͟͝·ͨ͠ ωοτϫʔΫϓϩάϥϚϏϦςΟษڧձ