Docker and GAE/Go on Ubuntu
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This document discusses Docker and provides instructions for installing Docker and building a Docker image for a Go application on Google App Engine. It summarizes how Docker allows packaging applications into standardized units for software development and deployment and can be used to run applications in isolated containers. Specific steps are given to build a Docker image using a Dockerfile, run a Docker container, and deploy a sample Go application locally and on GAE using Docker.
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Docker and GAE/Go on Ubuntu
- 1. GDGி㒔䚷2014ᖺᛀ䜜ຮᙉ LT Docker䛿䛨䜑䜎䛧䛯䚹 GDG⚄ᡞ䚷㔝⏣ᝅᚿ
- 2. 䛹䛳䛛䞊䠛䛠䛳䛠䛳䛶䜏䛯 Docker䛿䝋䝣䝖䜴䜵䜰䝁䞁䝔䝘ෆ䛾䜰䝥䝸䜿䞊䝅䝵䞁䛾䝕䝥䝻䜲䝯䞁䝖䜢⮬ື䛩䜛 䜸䞊䝥䞁䝋䞊䝇䝋䝣䝖䜴䜵䜰䛷䛒䜛䚹 Linux䜹䞊䝛䝹䛻䛚䛡䜛LXC䛸䜀䜜䜛Linux䝁䞁䝔䝘ᢏ⾡䛸Aufs䛸䛔䛖≉Ṧ䛺䝣䜯䜲 䝹䝅䝇䝔䝮䜢⏝䛧䛶䝁䞁䝔䝘ᆺ䛾௬䜢⾜䛖䚹VMware〇ရ䛺䛹䛾௬䜢 ⾜䛖䝝䜲䝟䞊䝞䜲䝄䞊ᆺ〇ရ䛸ẚ䜉䛶䚸䝕䜱䝇䜽⏝㔞䛿ᑡ䛺䛟䚸䜲䞁䝇䝍䞁䝇సᡂ䜔 䜲䞁䝇䝍䞁䝇㉳ື䛿㏿䛟䚸ᛶ⬟ຎ䛜䜋䛸䜣䛹䛺䛔䛸䛔䛖Ⅼ䜢ᣢ䛴䚹dockerfile䛸 䜀䜜䜛タᐃ䝣䜯䜲䝹䛛䜙䝁䞁䝔䝘䜲䝯䞊䝆䝣䜯䜲䝹䜢సᡂྍ⬟䛸䛔䛖≉ᛶ䜢ᣢ䛴䚹୍᪉ 䛷䚸䝁䞁䝔䝘OS䛸䛧䛶䛿䝩䝇䝖OS䛸ྠ䛨Linux䜹䞊䝛䝹䛧䛛ືస䛧䛺䛔䚹 ᘬ⏝䠖Docker - Wikipedia http://ja.wikipedia.org/wiki/Docker
- 3. 䛹䛳䛛䞊䛳䛶 䛺䜛䜋䛹䚹 䜘䛟䜟䛛䜙䜣䚹 䛷䜒䚸䠍䛴䛰䛡㔜せ䛺䛣䛸䛜䚹
- 6. 䛱䜗䛳䛸ჶ䜏○䛟䛸 䞉䝁䞁䝔䝘䛸䛔䛖௬⎔ቃ䛜స䜜䜛 䞉VMWare䛸䛛䛾௬䝬䝅䞁䛸㐪䛳䛶䚸䝩䝇䝖OS䛾 䝇䝨䝑䜽䛜䜋䜌㐺⏝䛷䛝䜛 䞉䝗䝷䜲䝤ᐜ㔞䜒䛭䜣䛺䛻㣗䜟䛺䛔 䞉䝁䞁䝔䝘䛻䛘䜛䛾䛿x64䛾Linux䛰䛡 䞉DockerHub䜔䚸Dockerfile䛷⡆༢䛻ඹ᭷䛷䛝䜛
- 7. ⡆༢䛻ゝ䛖䛸 䛸䛶䜒䝃䜽䝃䜽ື䛔䛶䛟䜜䛶 䛔䛳䜁䛔⎔ቃస䛳䛶䜒OK䛺 ౽䛷䛔䛔䜔䛴䛰䜘
- 8. 䛺䜣䛷䛹䛳䛛䞊䠛 䜎䛷௬䝬䝅䞁䜢䛳䛶䛯 䞉Ⓨ⾲㈨ᩱస䜛䛯䜑䛾᳨ド⎔ቃ 䞉㛤Ⓨ⎔ቃ䜢䜟䛡䛶䛚䛟䛯䜑 䞉᪂䛧䛔OS䜢䛳䛶䜏䛯䛔ሙྜ䚸ලྜ䛰䜙䛡䛷䜒 స䜚ᤞ䛶ฟ᮶䜛䛯䜑 䞉᪂䛧䛔⎔ቃ䛷ᚰᶵ୍㌿
- 9. 䛺䜣䛷䛹䛳䛛䞊䠛 ၥ㢟Ⅼ䜒䛔䛟䛴䛛䛒䛳䛶ᅔ䛳䛶䛯 䞉ᐜ㔞㣗䛖䛛䜙䛭䜣䛺䛻䛔䛳䜁䛔స䛳䛶ಖᣢ䛷䛝䛺 䛔 䞉䛒䜛⛬ᗘ䛾ືస䜢䛥䛫䜛䛯䜑䛻䛿䚸䝩䝇䝖䝬䝅䞁 䛾䝁䜰䛸䛛䝯䝰䝸䛸䛛⤖ᵓ䜚ᙜ䛶䜛ᚲせ䛜䛒䜛
- 11. 䛹䛳䛛䞊䜅䛑䛔䜛 Dockerfile䛿䝁䞁䝔䝘䛾సᡂ䛸䚸సᡂ䛧䛯䝁䞁䝔䝘 ୖ䛷ᐇ⾜䛧䛯䛔䝁䝬䞁䝗䜢ᐃ⩏䛩䜛䝣䜯䜲䝹䚹 ⎔ቃᵓ⠏䛷䝟䝑䜿䞊䝆䛾䜲䞁䝇䝖䞊䝹䛸䛛䚸䛚Ỵ䜎 䜚䛾䝁䝬䞁䝗䜢ᐃ⩏䛧䛶䛚䛡䜀䚸సᡂ䛸䜲䞁䝇䝖䞊䝹 䜢୍ᣓ䛷䜔䛳䛶䛟䜜䜛䚹」〇䜔ඹ᭷䛻౽䚹 ᐇ⾜䝁䝬䞁䝗䛾☜ㄆ⏝䛻䜒䛘䜛䚹
- 12. 䛹䛳䛛䞊䜅䛑䛔䜛 FROM ubuntu MAINTAINER scarviz <scarviz@gmail.com> # add work user RUN adduser gopher RUN echo "gopher:gopher" |chpasswd RUN gpasswd -a gopher sudo # install package RUN apt-get update RUN apt-get install -y vim wget unzip git mercurial python # change user USER gopher # work dir WORKDIR /home/gopher
- 13. 䛹䛳䛛䞊䜅䛑䛔䜛䛷GAE/Go GAE/Go⎔ቃ䜢సᡂ䛩䜛Dockerfile䜢స䛳䛶䜏䛯 $ wget http://goo.gl/Dsh8zX -O Dockerfile 䈜Dockerfile䛿䛂Dockerfile䛃䛸䛔䛖䝣䜯䜲䝹ྡ䛻䛩䜛
- 14. 䛹䛳䛛䞊䜅䛑䛔䜛䛷GAE/Go Dockerfile䛷䝁䞁䝔䝘䛾సᡂ $ sudo docker build -t gopher/u1404 . 䈜䛂gopher/u1404䛃䛿௵ព䛾䜲䝯䞊䝆ྡ 䚷䛂.䛃䛿Dockerfile䛾᱁⣡䝕䜱䝺䜽䝖䝸(䛿䜹䝺䞁䝖)
- 15. 䛹䛳䛛䞊䜅䛑䛔䜛䛷GAE/Go 䝁䞁䝔䝘䜢సᡂ䛧䚸㉳ື䛩䜛 $ sudo docker run -i -t gopher/u1404 /bin/bash 䈜ඹ᭷䝕䜱䝺䜽䝖䝸䜢సᡂ䛩䜛ሙྜ䛿-v䜸䝥䝅䝵䞁 $ sudo docker run -i -t -v (䝩䝇䝖䛾ඹ᭷dir):/home/gopher/share_gopher gopher/u1404 /bin/bash
- 16. 䛹䛳䛛䞊䜅䛑䛔䜛䛷GAE/Go 䝩䝇䝖OS䛷䜰䜽䝉䝇䛷䛝䜛䜘䛖䛻ᐇ⾜ $ dev_appserver.py ./ --port 8080 --host 0.0.0.0 䝩䝇䝖OS䛷䝤䝷䜴䝄䛛䜙 䛂http://(IP䜰䝗䝺䝇):8080䛃䛻䜰䜽䝉䝇䛩䜜䜀OK
- 17. 䛹䛳䛛䞊䜅䛑䛔䜛䛷GAE/Go Demo The Go gopher@Renee French. http://goo.gl/q6msPI CC BY 3.0
- 19. 䜅䜝䛟䚷䛹䛳䛛䞊䛾䛔᪉ ⎔ቃ 䚷Ubuntu14.04 x64 䚷䈜VMWarePlayer 6䛷ືస
- 20. 䛹䛳䛛䞊䛾䛔᪉ Docker䜢䜲䞁䝇䝖䞊䝹 $ sudo apt-get update $ sudo apt-get install docker.io
- 21. 䛹䛳䛛䞊䛾䛔᪉ Docker䝁䝬䞁䝗䜢᭷ຠ $ source /etc/bash_completion.d/docker.io
- 22. 䛹䛳䛛䞊䛾䛔᪉ Docker䝞䞊䝆䝵䞁☜ㄆ $ sudo docker --version
- 23. 䛹䛳䛛䞊䛾䛔᪉ Docker䜲䝯䞊䝆䛾᳨⣴䚷(䠖Ubuntu᳨⣴) $ sudo docker search ubuntu Docker䜲䝯䞊䝆䜢ྲྀᚓ䚷(䠖Ubuntuྲྀᚓ) $ sudo docker pull ubuntu
- 24. 䛹䛳䛛䞊䛾䛔᪉ ྲྀᚓ῭䜏Docker䜲䝯䞊䝆୍ぴ $ sudo docker images
- 25. 䛹䛳䛛䞊䛾䛔᪉ Docker䝁䞁䝔䝘సᡂ(㉳ື) $ sudo docker run -i -t ubuntu /bin/bash 䈜䛂ubuntu䛃䛿䜲䝯䞊䝆ྡ 䚷䛂/bin/bash䛃䛿ᐇ⾜䝁䝬䞁䝗
- 26. 䛹䛳䛛䞊䛾䛔᪉ Docker䝁䞁䝔䝘୍ぴ $ sudo docker ps -a 䈜㉳ື୰䛾䜒䛾䛾䜏䛺䜙-a䜸䝥䝅䝵䞁䛿せ
- 27. 䛹䛳䛛䞊䛾䛔᪉ Docker䝁䞁䝔䝘䛾㉳ື $ sudo docker start (ID) $ sudo docker attach --sig-proxy=false (ID) 䈜docker run䛿䝁䞁䝔䝘䜢᪂つసᡂ䛩䜛䛾䛷䚸㉳ື䛿docker start䜢䛖 䚷ID䛿䝁䞁䝔䝘䛾ID䛷䚸୍ព䛻䛺䜜䜀ୖ䠐᱆⛬ᗘ䛷OK
- 28. 䛹䛳䛛䞊䛾䛔᪉ Docker䝁䞁䝔䝘䛾๐㝖䚷䈜ID䛿䝁䞁䝔䝘䛾ID $ sudo docker rm (ID) Docker䜲䝯䞊䝆䛾๐㝖䚷䈜ID䛿䜲䝯䞊䝆䛾ID $ sudo docker rmi (ID)