Why Docker?

社内勉強会用

Transcript

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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