Dockerを使ってみよう / #kosenconf131hokkaido

Transcript

1. DockerΛ ࢖ͬͯΈΑ͏ ࠤ஛ ߤر
2. ࣗݾ঺հ • ಩খ຀ߴઐ 2೥ ৘ใܥ • ߴઐϓϩίϯڝٕ෦໳ • AtCoder(Python)ɺ
 WebϑϩϯτΤϯυɺ
 όοΫΤϯυ
 ͳͲ͍Ζ͍Ζ… @satakenkoki
3. ࠓ೔ͷ໨ඪ • DockerΛ஌Βͳ͍ਓɺॳ৺ऀͷਓʹ
 ͔Δʙ͘ɺΘ͔ͬͯ΋Β͏ɻ
 
 (DockerΛ࢖͍͜ͳͯ͠Δਓ͸ɺؒҧ͍ͬͯΔ ͱ͜Ζ͕͋Ε͹ࢦఠͯ͘͠ΕΔͱخ͍͠Ͱ͢)
4. Ծ૝Խͱ͸ʁ
5. • ͬ͘͟Γݴ͏ͱɺ̍୆ͷίϯϐϡʔλΛɺ
 ෳ਺͋Δ͔ͷ༷ʹ࢖͏͜ͱɻ https://www.infraexpert.com/study/virtual.html
6. ࣗ෼ͷPCͷ্ʹ ෼཭͞Εͨ؀ڥΛ࡞ΕΔ
7. • ͬ͘͟Γݴ͏ͱɺ̍୆ͷίϯϐϡʔλΛɺ
 ෳ਺͋Δ͔ͷ༷ʹ࢖͏͜ͱɻ https://www.infraexpert.com/study/virtual.html ήετଆ ϗετଆ
8. Dockerͱ͸ʁ
9. https://www.docker.com/resources/what-container ͦΕͧΕʹ
   ͋Δ͔Β
   ແବ ࠓ·ͰͷԾ૝Խ
10. • ͬ͘͟Γݴ͏ͱɺ̍୆ͷίϯϐϡʔλΛɺ
 ෳ਺͋Δ͔ͷ༷ʹ࢖͏͜ͱɻ https://www.infraexpert.com/study/virtual.html
11. https://www.docker.com/resources/what-container ͦΕͧΕʹ
    ͋Δ͔Β
    ແବ ࠓ·ͰͷԾ૝Խ
12. ίϯςφܕԾ૝Խ https://www.docker.com/resources/what-container ࠓ·ͰͷԾ૝Խ ແବ͕ͳ͘ͳͬͨ
13. ແବ͕ͳ͍ ↓ Ϧιʔεফඅྔ͕গͳ͍ σΟεΫ࢖༻ྔ͕গͳ͍ ↓ ίϯϐϡʔλʹ༏͍͠
14. ࣗ෼ͷPCͷ্ʹ ෼཭͞Εͨ؀ڥΛ ௒ܰྔʹ ࡞ΕΔ
15. ίϯςφܕԾ૝Խ https://www.docker.com/resources/what-container ࠓ·ͰͷԾ૝Խ
16. Dockerίϯςφͱݺͼ·͢ https://www.docker.com/resources/what-container
17. Dockerίϯςφͱݺͼ·͢ https://www.docker.com/resources/what-container Dockerίϯςφ͸ DockerΠϝʔδΛݩʹ ىಈ͞Ε·͢
18. Docker ΠϝʔδΛ༻ҙ͢Δ • Docker Hubͱ͍͏αʔϏεʹ͸
 ͨ͘͞Μͷਓ͕࡞ͬͨɺ
 ༷ʑͳΠϝʔδ͕ެ։͞Ε͍ͯ·͢ɻ • DockerfileΛ࢖͍ɺDocker HubͷΠϝʔδΛݩʹ
 ࣗ෼ͰDockerΠϝʔδΛ࡞Δ͜ͱ΋Ͱ͖·͢ɻ • ࣗ෼Ͱ࡞ͬͨΠϝʔδΛެ։͢Δ͜ͱ΋Ͱ͖·͢ɻ
19. PythonΛಈ͔ͯ͠ΈΔ print("Hello, world") # pythonͷΠϝʔδΛݩʹ͢Δ FROM python:3.7 # Helloworld.pyΛίϯςφʹίϐʔ COPY helloworld.py / # ίϯςφىಈ࣌ʹ࣮ߦ͢ΔίϚϯυΛࢦఆ CMD ["python", "/helloworld.py"] Dockerfile Helloworld.py
20. ͜ͷ̎ͭͷϑΝΠϧΛ ಉ͡৔ॴʹஔ͖·͢
21. $ # Docker ΠϝʔδΛ $ # python-hello-world ͱ͍͏໊લͰ࡞੒͢Δ $ docker build -t python-hello-world . # ...লུ $ # python-hello-world ͱ͍͏ $ # DockerΠϝʔδΛ࣮ߦ͢Δ $ docker run python-hello-world Hello, world
22. DockerͷϝϦοτ • DockerfileͳͲΛ༻͍Δ͜ͱʹΑΓɺ
 ಉ͡ίʔυ͔Βಉ͡؀ڥΛ؆୯ʹ࡞ΕΔ • ࠓ·ͰͷԾ૝ԽΑΓ΋ɺ༰ྔ͕গͳ͍ͷͰ
 ڞ༗͕༰қ
23. DockerͰ࣮ߦ͸Ͱ͖͚ͨͲɺ ࡞੒ͨ͠ϑΝΠϧ͸Ͳ͏͢Δ?
24. ਵ࣌มΘΔσʔλ͸?
25. Bind mounts / Volumes • Bind mounts
 ϗετͷϑΝΠϧɾσΟϨΫτϦΛ
 ίϯςφ಺ʹϚ΢ϯτ͢Δػೳ • Volumes
 Docker͕؅ཧ͢ΔྖҬΛ
 ίϯςφ಺ʹϚ΢ϯτ͢Δػೳ
26. Bind mounts / Volumes • Bind mounts
 ϗετͷϑΝΠϧɾσΟϨΫτϦΛ
 ίϯςφ಺ʹϚ΢ϯτ͢Δػೳ • Volumes
 Docker͕؅ཧ͢ΔྖҬΛ
 ίϯςφ಺ʹϚ΢ϯτ͢Δػೳ ίϚϯυ࣮ߦ࣌ʹ -v /path/to/dir:/path/to/conteiner
27. $ # Docker ΠϝʔδΛ $ # python-hello-world ͱ͍͏໊લͰ࡞੒͢Δ $ docker build -t python-hello-world . # ...লུ $ # python-hello-world ͱ͍͏ $ # DockerΠϝʔδΛ࣮ߦ͢Δ $ docker run python-hello-world Hello, world ͖࣮ͬ͞ߦͨ͠ίʔυ΋
28. $ docker run \ # ݱࡏͷσΟϨΫτϦΛίϯςφ಺ͷ/dirʹϚ΢ϯτ -v ${PWD}:/dir \ python:3.7 \ # ࣮ߦ͢ΔίϚϯυ python /dir/helloworld.py Hello, world Bind mount Λ࢖͑͹͜Ε͚ͩ
29. DockerίϯςφΛ࢖͏ͱ͖͸ • DockerͷίϯςφΛѻ͏ࡍɺ
 σʔλ͸֎෦ʹஔ͘ͷ͕جຊ • 1ίϯςφ1ϓϩηε͕جຊ
 
 →࠶ར༻ͳͲ͕؆୯ʹͳΔ
30. ͞Βʹ • DockerΛ࢖ͬͯɺࣗ෼ͷΞϓϦέʔγϣϯΛ ެ։͢Δ • Dockerͷ؀ڥ͑͋͞Ε͹ɺ
 ෳࡶͳઃఆͳ͠ʹ୭Ͱ΋ಈ͔ͤΔ
31. ·ͱΊ • Docker͸௒ܰྔͰɺ෼཭͞Εͨ؀ڥΛ࡞ΕΔ • DockerfileͳͲΛ࢖ͬͯɺDockerΠϝʔδΛ
 ࡞੒͠ɺDockerίϯςφΛ࡞੒͢Δ • ؀ڥͷڞ༗΍࠶ߏங͕༰қ
32. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠!