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Why Docker?

Why Docker?

社内勉強会用

AGAWA Koji

April 27, 2016
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  1. Why Docker ?
    @atty303

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  2. ͳͥ Docker(ίϯςφ)ͳͷ͔?

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  3. ܭࢉϦιʔεར༻ͷ
    ࠷దԽ

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  4. …΁ͷಓΛ੾Γ։͘΋ͷ

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  5. Docker ొ৔ͷഎܠ
    4 Docker ͸ dotCloud ͱ͍͏ PaaS ϓϩόΠμʔ͕ࣗࣾϓ
    ϥοτϑΥʔϜΛΦʔϓϯιʔεԽͨ͠΋ͷ
    4 PaaS ϓϩόΠμʔʹͱͬͯϦιʔεར༻ͷ࠷దԽ͸ར
    ӹʹ௚݁͢Δ
    4 Google ΋ Docker Ͱ͸ͳ͍͕શͯͷαʔϏεΛίϯςφ
    (Borg)Ͱಈ͔͍ͯ͠Δ
    4 ๲େͳϦιʔεͷ࠷దԽ͸ڝ૪ྗͷݯઘ

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  6. Ծ૝Ϛγϯͱίϯςφ
    4 Ծ૝ϚγϯͰ͸ཻ౓͕େ͖͍
    4 ίϯςφ͸ϓϩηεཻ౓
    4 ੜͷ Linux ϓϩηεͰ͸؀ڥͷִ཭͕ෆे෼
    4 chroot ΍ cgroup ͳͲ…
    4 ϓϩηεͷΑ͏ʹܰྔͰԾ૝ϚγϯͷΑ͏ʹಠཱ͍ͯ͠Δ
    ͷ͕ίϯςφ

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  7. ࠷దԽؔ࿈
    4 ίϯςφεέδϡʔϦϯά
    4 Docker Swarm
    4 Google Kubernetes
    4 Apache Mesos
    4 HashiCorp Nomad
    4 Datacenter as a Computer
    4 ϗετ୯ҐͰߟ͑ΔͷͰ͸ͳ͘ɺෳ਺ͷϗετΛ1ͭͷڊେͳίϯϐ
    ϡʔλͱΈͳ͢

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  8. ΞϓϦέʔγϣϯͷཻ౓

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  9. ैདྷ

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  10. Docker

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  11. ΞϓϦέʔγϣϯࢹ఺
    4 ΞϓϦ͕ґଘ͢ΔશͯͷϥϯλΠϜΛಉࠝͰ͖Δ
    4 ϗετϚγϯͷঢ়ଶΛߟ͑ͳͯ͘ྑ͍ͷͰ޷͖ͳΑ͏ʹίϯςφ಺
    ʹΠϯετʔϧͰ͖Δ
    4 ίϯςφͷϏϧυ͸ৗʹಉ͡ঢ়ଶ͔Βελʔτ͠લఏ৚݅ΛݻఆͰ͖
    ΔͷͰ Chef ͷΑ͏ͳঢ়ଶ؅ཧ͕ෆཁʹͳΔ
    4 γΣϧεΫϦϓτͰγϯϓϧʹΠϯετʔϧ
    4 Ϗϧυͨ͠ίϯςφ͸Ͳ͜Ͱ΋ಈ͔͢͜ͱ͕Ͱ͖Δ
    4 ϩʔΧϧɺCI؀ڥɺຊ൪؀ڥ…

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  12. ϗετࢹ఺
    4 ϗετϚγϯ͸ Docker daemon ͚ͩಈ͔͓͚ͯ͠͹શͯ
    ͷΞϓϦ͕ಈ͘
    4 ͨͩ͠ίϯςφεέδϡʔϦϯάͱ͍͏৽͍͠՝୊͕ൃ
    ੜ͢Δ
    4 ϗετΛϩʔϧผʹ Chef ͳͲͰ؅ཧ͢Δඞཁ͕ແ͘ͳΔ
    4 Ή͠Ζϗετ OS ͕ݶΓͳ͘ബͯ͘ྑ͍ → CoreOS

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  13. ·ͱΊ

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  14. Docker Ͱ೉͍͠ͱ͜Ζ
    4 ίϯςφεέδϡʔϦϯά
    4 σʔλ(ϘϦϡʔϜ)ӬଓԽ
    4 ΦʔέετϨʔγϣϯ
    4 ίϯςφ୯ମΛಈ͔͢ͷ͸؆୯ɺίϯςφಉ࢜Λڠௐͤ͞
    Δͷ͕೉͍͠

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  15. Docker Λ࢖͏΂͖Ͱͳ͍ͱ͖
    4 ·ΘΓʹࣝऀ͕ډͳ͍ɺ͔ͭࣗྗͰؤுΔؾྗ͕ͳ͍ͱ͖
    4 PaaS (EBS, AppEngine, Heroku) Ͱࣄ଍ΓΔͱ͖

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  16. ݸਓతͳײ૝
    ࠓ·Ͱ͸ Docker Λར༻͢ΔϝϦοτΑΓ
    ֶशɾӡ༻ίετͷ΄͏͕ॏ͔ͬͨҹ৅Ͱ͕͢ɺ
    Docker ͷόʔδϣϯΞοϓ΍ΤίγεςϜͷॆ࣮ʹΑΓ
    όϥϯε͕औΕΔΑ͏ʹͳ͍ͬͯΔͱࢥ͍·͢ɻ
    ·ͩίετͷ΄͏͕ॏ͍͔΋͠Ε·ͤΜ͕ɺ
    ઌߦ౤ࢿͱࢥͬͯಋೖͯ͠Έͯ΋Α͍ͷͰ͸ͳ͍Ͱ͠ΐ͏͔ɻ

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