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Firecracker とは何か/what is Firecracker

ryo nakamaru
December 21, 2018

Firecracker とは何か/what is Firecracker

JAWS-UG コンテナ支部 #13 で発表した資料です。re:Invent 2019 でオープンソースとして発表された Firecracker とは何なのか、AWS はなぜ軽量 VM を作り、私たちはそこから何を享受できるのかを考えます。

ryo nakamaru

December 21, 2018
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  1. Firecracker ͱ͸Կ͔
    AWS ͸ͳͥܰྔ VM Λ࡞Γ
    ࢲͨͪ͸͔ͦ͜ΒԿΛڗडͰ͖Δͷ͔
    JAWS-UG ίϯςφࢧ෦ #13 Dec 21, 2018
    Ryo NAKAMARU, SUPINF Inc.

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  2. SUPINF Inc
    τϐοΫ
    2
    • AWS ͸ͳͥ Firecracker Λ࡞ͬͨͷ͔
    • Firecracker ͱ͸Կ͔
    • ࢲͨͪ͸ Firecracker ʹԿΛظ଴͠ɺͲ͏ߩݙͰ͖Δͷ͔
    • ͜Ε͔Β Fargate ͸Ͳ͏มΘΔͷ͔

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  3. SUPINF Inc
    3
    AWS ͸ͳͥ Firecracker Λ࡞ͬͨͷ͔

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  4. SUPINF Inc
    Lambda ͸ैདྷ EC2 ϕʔε
    4
    ηΩϡϦςΟ͸ඞਢʂ࣮ߦίϯςΩετɺ·ͣ͸ EC2 Ͱ෼཭͠Α͏
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Hypervisor
    ɹ
    Sandbox
    ɹ
    Lambda runtime
    ← EC2
    ɹ
    Guest OS
    Ϛϧνςφϯτ
    AWS ΞΧ΢ϯτ
    ؔ਺
    ʢ෼཭Ϩϕϧʣ
    ɹ
    Our code
    ɾݫີͰ࣮੷͋Δ ෼཭ख๏
    ɾͳΔ͸΍ͰϦϦʔε ͔ͨͬͨ͠

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  5. SUPINF Inc
    Lambda ͸ैདྷ EC2 ϕʔε
    5
    ඞવతʹ EC2 ΠϯελϯεͷىಈɺͦͷͨΊͷϦιʔε֬อ͕ى͜Δ
    ɹ
    ɹ
    ɹ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    A ΞΧ΢ϯτ
    ɹ ɹ
    B ΞΧ΢ϯτ C ΞΧ΢ϯτ
    ɾىಈ͕஗͍͜ͱ͕͋Δ
    ɾϦιʔεར༻ʹແବ͕ଟ͍
    ͳͷͰɾɾ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    ɹ
    ɹ
    λ

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  6. SUPINF Inc
    ࣍ੈ୅ͷαʔόʔϨεج൫͕΄͍͠
    6
    ౎౓ EC2 Λىಈ͍ͯͯ͠͸ඇޮ཰
    • ىಈ࣌ؒ
    • Ϧιʔεར༻ޮ཰
    1 ϓϩηε͕ݫີʹ෼཭Ͱ͖Ε͹͍͍

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  7. SUPINF Inc
    Firecracker Ͱ࣮ݱ͢Δ৽ߏ੒
    7
    ௒ܰྔͳ VM ͱɺߴ଎ͳ Hypervisor ͕͋Ε͹ɾɾ
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Sandbox
    ɹ
    Lambda runtime
    ɹ
    Our code
    Ϛϧνςφϯτ
    ؔ਺
    ɹ
    Hypervisor
    ɹ
    Guest OS
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Hypervisor
    ɹ
    Sandbox
    ɹ
    Lambda runtime
    ɹ
    Guest OS
    Ϛϧνςφϯτ
    AWS ΞΧ΢ϯτ
    ؔ਺
    ʢ෼཭Ϩϕϧʣ
    ɹ
    Our code
    ݟ௚͠ʂ

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  8. SUPINF Inc
    8
    ɹ
    ɹ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    A
    ɾฏۉىಈ࣌ؒͷ୹ॖ
    ɾϦιʔεΛ࠷େݶ༗ޮ׆༻Ͱ͖Δ
    Firecracker Ͱ࣮ݱ͢Δ৽ߏ੒
    ௒ܰྔͳ VM ͱɺߴ଎ͳ Hypervisor ͕͋Ε͹ɾɾ
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    B
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    B
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    C
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    C
    ..
    ɹ
    ࣍ੈ୅ Hypervisor
    ɹ
    ɹ
    ɹ
    λ
    ɹ
    D

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  9. SUPINF Inc
    2018 ೥຤ݱࡏɺฏߦՔಇதɾɾʂ
    9
    EC2 Ϟʔυ
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Hypervisor
    ɹ
    Sandbox
    ɹ
    Lambda runtime
    ɹ
    Guest OS
    Ϛϧνςφϯτ
    AWS ΞΧ΢ϯτ
    ؔ਺
    ɹ
    Our code
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Sandbox
    ɹ
    Lambda runtime
    ɹ
    Our code
    Ϛϧνςφϯτ
    ؔ਺
    ɹ
    Hypervisor
    ɹ
    Guest OS
    Firecracker Ϟʔυ

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  10. SUPINF Inc
    ͜͜·Ͱͷ࿩ → youtube.com/watch?v=QdzV04T_kec
    10

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  11. SUPINF Inc
    11
    Firecracker ͱ͸Կ͔

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  12. SUPINF Inc
    “ίϯςφͷͨΊͷ” QEMU ୅ସͰ͢
    12
    1 Firecracker ϓϩηεͰ 1 microVM Λ୲౰

    ɹ
    ɹ
    Hardware
    CPU, Storage,
    Network card, …
    ɹ
    Host kernel KVM
    ɹ ɹ ɹ
    Firecracker
    ɹ
    Guest kernel
    microVM
    ͜Ε

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  13. SUPINF Inc
    13
    Firecracker ͸ VM Λىಈ͢Δͷ͕࢓ࣄʂ
    Ϣʔβʔ Lambda
    ࢖͏ͧʙ
    Lambda / Fargate ͸͜͏ಈ͍͍ͯΔʢໝ૝ʣ

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  14. SUPINF Inc
    Lambda / Fargate ͸͜͏ಈ͍͍ͯΔʢໝ૝ʣ
    14
    Ϣʔβʔ
    1. AWS API
    αʔόʔϨε / ECS
    ίϯτϩʔϧϓϨΠϯ
    Firecracker ͸ VM Λىಈ͢Δͷ͕࢓ࣄʂ
    * αʔόʔϨεଆ͸ઌͷಈըͰجຊߏ੒Λެ։ࡁ
    A Serverless Journey: AWS Lambda Under the Hood
    https://www.youtube.com/watch?v=QdzV04T_kec

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  15. SUPINF Inc
    ɹ
    15
    ɹ
    Host kernel KVM
    Ϣʔβʔ
    Firecracker ͸ VM Λىಈ͢Δͷ͕࢓ࣄʂ
    ϗετ͝ͱʹଘࡏ͢ΔͰ͋Ζ͏
    Ṗ Agent ʹ Lambda ͷൃՐΛґཔ
    Ṗ Agent
    2. ൃՐґཔ
    Lambda / Fargate ͸͜͏ಈ͍͍ͯΔʢໝ૝ʣ
    αʔόʔϨε / ECS
    ίϯτϩʔϧϓϨΠϯ

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  16. SUPINF Inc
    ɹ
    16
    ɹ
    Host kernel KVM
    Ϣʔβʔ
    Firecracker ͸ VM Λىಈ͢Δͷ͕࢓ࣄʂ
    Firecracker
    Ṗ Agent
    4. Firecracker ىಈ
    3. μ΢ϯϩʔυ
    Ṗ Agent ͸ S3 / ECR ͔Β
    ϢʔβʔίʔυΛर͍ͭͭ
    Firecracker ΛҰͭىಈ
    ʢ͜ͷϝϞϦ͕ 5 MiB ະຬʣ
    Lambda / Fargate ͸͜͏ಈ͍͍ͯΔʢໝ૝ʣ
    αʔόʔϨε / ECS
    ίϯτϩʔϧϓϨΠϯ

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  17. SUPINF Inc
    ɹ
    17
    ɹ
    Host kernel KVM
    Ϣʔβʔ
    Firecracker ͸ VM Λىಈ͢Δͷ͕࢓ࣄʂ
    Firecracker
    Ṗ Agent
    5. VM ઃఆɾىಈࢦࣔ
    Ϣʔβʔίʔυͷ࣋ͪࠐΈؚΊ
    Firecracker ͕ VM Λىಈ
    ʢVM ಺Ͱ /sbin/init ϓϩηε͕
    ɹ૸Δ·Ͱ͕ 125 ms Ҏ಺ʣ
    ɹ
    Guest kernel
    microVM
    Application
    Lambda / Fargate ͸͜͏ಈ͍͍ͯΔʢໝ૝ʣ
    αʔόʔϨε / ECS
    ίϯτϩʔϧϓϨΠϯ

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  18. SUPINF Inc
    ͦͷଞಛ௃ͱɺͦͷඞવੑ
    18
    AWS ͕ҎԼͷػೳ܈Λ crosvm ʹ௥Ճ࣮૷ͨ͠ͷ͸ͳͥͩͱࢥ͍·͢ʁ
    Firecracker
    ɹ
    Guest kernel
    microVM
    Application
    ɾࢦࣔ͸ REST API Ͱड͚Δ
    ɾϝλσʔλ ؅ཧ
    ɾσόΠεΤϛϡϨʔγϣϯ
    ɹɹ- ϨʔτϦϛοτ͋Γ
    ɾPICs, IOAPIC & PIT
    ɾetc..

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  19. SUPINF Inc
    ଓ Firecracker ͱ͸Կ͔
    19
    firecracker-containerd

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  20. SUPINF Inc
    firecracker-containerd (FC)
    20
    ࣍ੈ୅αʔόʔϨεج൫ͷຊ໋ʂʁ
    • Firecracker Λ ίϯςφඪ४࢓༷ʹै͍ར༻͢Δ ͨΊͷ࢓૊Έ
    ‣ ΠϯλʔϑΣΠεʹ Λར༻
    ‣ VM ىಈ΍ϑΝΠϧͷ࣋ͪࠐΈ΋ඪ४తͳ͓࡞๏ʹै͏
    • Firecracker ීٴͷ͞Βʹઌɺͪ͜Β͕ຊ໋ߏ੒ͳͷͰ͸ײ
    ‣ ͍ͣΕ͸ΑΓඒ͘͠ɺΑΓޮ཰తͰɺΑΓ଎͍ߏ੒ʹ
    containerd

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  21. SUPINF Inc
    ɹ
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    21
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ
    Firecracker
    ͍ͭ࢖ΘΕΔ͔
    ͝஫໨ʙ

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  22. SUPINF Inc
    ɹ
    22
    containerd
    Firecracker
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  23. SUPINF Inc
    ɹ
    23
    containerd FC snapshotter
    Firecracker
    ReadOnly ͳ Docker
    Πϝʔδ͔Β r/w Մೳɺ
    ͔ͭ Firecracker ͷى
    ಈ͢Δ VM ʹύεε
    ϧʔՄೳͳσόΠεͱ
    ͯ͠εφοϓγϣοτ
    Λ࡞੒
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  24. SUPINF Inc
    ɹ
    24
    FC runtime
    containerd FC snapshotter
    Firecracker
    ຊདྷ runc ͕σϑΥ
    ϧτͰ͋Δ runtime
    (containerd-shim) Λ
    FC runtime ʹ͢Δ
    ͜ͱͰɺίϯςφΛ
    ૸ΒͤΔ VM ىಈΛ
    Firecracker ʹࢦࣔ
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  25. SUPINF Inc
    ɹ
    ɹ
    25
    FC runtime
    containerd FC snapshotter
    microVM
    runc
    FC agent
    Firecracker
    VM ͕ඵͰىಈ
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  26. SUPINF Inc
    ɹ
    ɹ
    26
    FC runtime
    containerd FC snapshotter
    microVM
    runc
    FC agent
    Firecracker
    vsock ܦ༝Ͱ VM ಺
    ͷΤʔδΣϯτʹɺ
    runc Ͱ Docker ίϯ
    ςφΛىಈ͢ΔΑ ͏
    ࢦࣔ
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  27. SUPINF Inc
    ɹ
    ɹ
    27
    FC runtime
    containerd FC snapshotter
    microVM
    runc
    FC agent
    Firecracker
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    FC ܦ༝Ͱͷ Docker ίϯςφىಈ
    ʙ ΑΓ҆શʹ Docker ίϯςφΛϗετ͢ΔͨΊʹ ʙ

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  28. SUPINF Inc
    FC ݱࡏͷঢ়گ
    28
    ઈࢍ։ൃதʂʂʂ
    https://github.com/firecracker-microvm/firecracker/blob/master/docs/experimental-vsock.md
    https://github.com/firecracker-microvm/firecracker-containerd/issues
    ͜ͷঢ়ଶͰ͢Ͱʹຊ൪ར༻
    ͞Ε͍ͯΔͱ͸ࢥ͍೉͍ɾɾ

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  29. SUPINF Inc
    ͱ͜ΖͰ͜ͷߏ੒ɺݟ֮͑͋Γ·ͤΜ͔ʁ
    29
    ɹ
    ɹ
    FC runtime
    containerd FC snapshotter
    microVM
    runc
    FC agent
    Firecracker
    ECS / EKS ͳͲ
    ࢦࣔܥ౷

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  30. SUPINF Inc
    ͱ͜ΖͰ͜ͷߏ੒ɺݟ֮͑͋Γ·ͤΜ͔ʁ
    30
    ɹ
    ɹ
    FC runtime
    containerd FC snapshotter
    microVM
    runc
    FC agent
    Firecracker
    ECS / EKS ͳͲ
    ࢦࣔܥ౷
    ݻ༗໊ࢺ͸ҧ͏΋ͷͷɺ
    ߏ੒͸ͱͯ΋ࣅ͍ͯΔ ..
    Kata Containers
    .. ??

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  31. SUPINF Inc
    طଘιϑτ΢ΣΞͱͷकඋൣғΛൺֱ
    31
    ʢFirecracker ୯඼ͱ gVisor ͳΒซ༻Ͱ͖ͦ͏ʣ
    ɹ
    Hardware
    ɹ
    Host OS
    ɹ
    Hypervisor
    ɹ
    Guest OS
    ɹ
    Sandbox
    ɹ
    Application
    gVisor
    Firecracker
    Firecracker, KVM &
    firecracker+containerd
    QEMU, KVM &
    Kata Containers

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  32. SUPINF Inc
    Kata Containers ΍ QEMU ͱ͸Կ͕ҧ͏ͷʁ
    32
    ίϯςφΛ૸ΒͤΔ͜ͱΛલఏʹߟ͑௚͠ɺ
    ɾ࠷ܰྔ / ࠷଎ʹͩ͜Θͬͯ·͢
    ɾηΩϡϦςΟʹͩ͜Θͬͯ·͢
    ɾAWS ͷج൫ʹඞཁͳػೳἧ͑·ͨ͠ʢҙ༁ʣ
    ͱͷ͜ͱ
    https://firecracker-microvm.github.io/

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  33. SUPINF Inc
    33
    ࢲͨͪ͸ Firecracker ʹԿΛظ଴͠
    Ͳ͏ߩݙͰ͖Δͷ͔

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  34. SUPINF Inc
    OSS
    34
    • Firecracker ε
    ‣ crosvm (Chromium OS ͷ VMM) ىݯ → Rust & ࠩ෼͸͖ͬͱࠓޙ΋࠷খݶ
    ‣ ΢Υον͢Δʹͯ͠΋ GPU / Inferentia ͷΤϛϡϨʔγϣϯ͋ͨΓɾɾʁ
    • firecracker-containerd ε
    ‣ ࢲͷ༧૝͕ਖ਼͚͠Ε͹ɾɾຊ໋ͳ্ʹ։ൃ్্ʂߩݙͷνϟϯεʂʂ
    ‣ ͔͠΋ͬͪ͜͸ Go Ͱ͢ΑΈͳ͞Μ

    Lambda / Fargate ج൫ΛΈΜͳͰ࡞ΕΔʂͳΜͳΒΦϯϓϨͰ΋࢖͑ɾɾ

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  35. SUPINF Inc
    Firecracker ͷ͸͡Ίํ
    35
    • GitHub Ͱ docs / issues / release notes ΛΈΑ͏
    ‣ ΈΜͳͷࣦഊཤྺ΍ରॲ๏͕͢Ͱʹͨ͘͞Μ
    • Slack ʹ΋༗༻ͳ৘ใଟ͍
    • Nested Virtualization ؀ڥԼͰ΋ಈ͘Αε
    ‣ GCP ← f1.micro ͳΒແྉ࿮௒͑ͯ΋ $0.0076 / hour ʙ
    ‣ Azureε

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  36. SUPINF Inc
    Firecracker ͷ͸͡Ίํ
    36
    1. ϕΞϝλϧ͔ωετ͞ΕͨԾ૝؀ڥͰ Linux ͷ KVM Λ༗ޮԽ
    2. ΧʔωϧͱϧʔτϑΝΠϧγεςϜΛͲ͔͔͜Β࣋ͬͯ͘Δ
    3. VM ಺ͰωοτϫʔΫΛ࢖͍͍ͨ / ύεεϧʔ͍ͨ͠σόΠε͕͋Ε͹४උ
    4. ୺຤ A Ͱ Firecracker Λىಈ
    5. ୺຤ B ͔Β REST API Λ௨ͯ͡ Firecracker ʹ VM ͷઃఆɾىಈΛࢦࣔ
    6. ୺຤ A ଆͰ VM ʹ઀ଓ͞ΕΔ

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  37. SUPINF Inc
    37
    ͜Ε͔Β Fargate ͸Ͳ͏มΘΔͷ͔

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  38. SUPINF Inc
    Fargate ج൫Λݕূͯ͠Έͨ
    38
    API ͷԠ౴ΛಡΈɺCreatedAt ͔Β PullStartedAt ʹͳΔ·Ͱͷ࣌ؒΛܭଌ
    ɹɹ// ҎԼͷεΫϦϓτͰ֤Ϧʔδϣϯ 5 ճࢼߦ
    ɹɹ$ when=$(date '+%Y%m%d%H%M') && mkdir “${when}"
    ɹɹ$ for region in us-east-1 us-east-2 us-west-2 \
    ɹɹɹɹɹɹeu-west-1 eu-central-1 ap -northeast-1 \
    ɹɹɹɹɹɹap -southeast-1 ap -southeast-2; do
    ɹɹɹɹecs-task-runner --region "${region}" run alpine:3.8 --command env \
    ɹɹɹɹɹɹ--extended-output > "${when}/${region}".json 2>&1
    ɹɹdone

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  39. SUPINF Inc
    Fargate ج൫Λݕূͯ͠Έͨ
    39
    EC2 Ϟʔυʁ Firecracker Ϟʔυ͚ͩͲεέʔϧΞ΢τͨ͠ʁ ൑ఆࠔ೉ ..

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  40. SUPINF Inc
    • Firecracker ͷਁಁʢFC ʹͳΔ͔͸ո͍͠..ʣ
    • ENI Ξλον໰୊ʹվળͷஹ͠
    2019 ೥ʹظ଴Ͱ͖Δ͜ͱ
    40
    VM ࣗମͷىಈ & ENI Ξλονߴ଎Խ
    https://www.slideshare.net/AmazonWebServices/a-serverless-journey-aws-lambda-under-the-hood-srv409r1-aws-reinvent-2018

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  41. SUPINF Inc
    SUPINF Ͱͷ࠷ۙͷ Fargate ར༻ྫ
    41
    • ຊ൪αΠτɺRedash ͳͲͷ؅ཧπʔϧ
    • CI: αʔϏεͱಉ VPC ಺͔Βͷ DB ϚΠάϨʔγϣϯ / API e2e ςετ
    ‣ pottava/ecs-task-runner Ͱಉظతʹ Fargate Λར༻
    ‣ πʔϧΛ Docker ʹ͢Ε͹ CI ͱશ͘ಉ༷ͷςετΛϩʔΧϧͰ΋
    • Docker Πϝʔδͷ੬ऑੑνΣοΫ
    ‣ Clair ͸ DB ͝ͱ Fargate ʹࡌͤͯ΋໰୊ͳ͍

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  42. Presented by

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  43. தؙ ྑ @pottava
    • CTO at SUPINF Inc
    • Solutions Architect at Rescale, Inc.
    • JAWS-UG ίϯςφࢧ෦ɺAI ࢧ෦ӡӦ
    Profile
    43

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  44. SUPINF Inc
    44

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  45. Containerize your app!
    45
    • Ϋϥ΢υ / ίϯςφ ΛڧΈʹͨ͠डୗ։ൃӡ༻ɺίϯαϧςΟϯά
    • 2015 ೥͔Β Docker ͷຊ൪ӡ༻Λ։࢝ɾ๛෋ͳ CI / CD ࣄྫ
    • εϐϯϑɺͱಡΈ·͢ɾɾ

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  46. SUPINF Inc
    46

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  47. Cloud HPC with
    47
    • Ϋϥ΢υ HPC γϛϡϨʔγϣϯϓϥοτϑΥʔϜͷఏڙ
    • 2011 ೥ॳ಄ʹઃཱɺPeter Thiel ΍ Microsoft ͔Βग़ࢿ
    • εέʔϥϒϧͳγϛϡϨʔγϣϯ΍ػցֶशΛʂ

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  48. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ :)
    ࢀߟɿ
    • AWS re:Invent 2018: A Serverless Journey: AWS Lambda Under the
    Hood ( https://www.youtube.com/watch?v=QdzV04T_kec )
    • The Nitro Project: Next-Generation EC2 Infrastructure - AWS Online
    Tech Talks ( https://www.youtube.com/watch?v=eWFEJmsddV0 )
    • Firecracker: Secure and fast microVMs for serverless computing
    ( https://github.com/firecracker-microvm/firecracker )
    • firecracker-containerd: firecracker-containerd enables containerd
    to manage containers as Firecracker microVMs ( https://github.com/
    firecracker-microvm/firecracker-containerd )
    re:Invent ͰूΊ͖ͯͨ
    εςοΧʔ഑Γ·͢ʙʂ

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