さようなら Chef こんにちは Dockerfile / Web Tech Tokyo #1

Transcript

1. ͞Α͏ͳΒ
   $IFG
   ͜Μʹͪ͸
   %PDLFSpMF 2016-10-12 Web Tech Tokyo #1 Daisuke Fujita (@dtan4)

   https://flic.kr/p/rU5bCU

2. Daisuke Fujita / @dtan4 Engineer, Infrastructure Team
 @ Wantedly, Inc.

   AWS, Terraform / Terraforming, Developer Productivity

3. Infrastructure at Wantedly AWS + DNSimple શαʔϏε͕ Docker ίϯςφͰՔಇ EC2

   Πϯελϯεͷ OS ͸ CoreOS Capistrano Λ࢖ͬͨಠࣗͷσϓϩΠγεςϜ 
 + Heroku CLI ಉ༷ͷΠϯλʔϑΣΠεΛ࣋ͭ CLI https://speakerdeck.com/dtan4/number-abejameetup

4. Web (Rails) Docker image ͸2ஈߏ੒ ࠩ෼ͷΈͷ fetch + bundle install

   Ͱ
 σϓϩΠΛߴ଎Խ intermediate ͸ Chef + Packer ΠϝʔδαΠζ 3GB ௒ bundle install git clone wantedly/wantedly Ruby FROM Ubuntu 14.04 rake assets:precompile bundle install git checkout <branch> git fetch FROM intermediate web (Dockerfile) intermediate (Chef)

5. Web (Rails) Docker image ͸2ஈߏ੒ ࠩ෼ͷΈͷ fetch + bundle install

   Ͱ
 σϓϩΠΛߴ଎Խ intermediate ͸ Chef + Packer ΠϝʔδαΠζ 3GB ௒ bundle install git clone wantedly/wantedly Ruby FROM Ubuntu 14.04 rake assets:precompile bundle install git checkout <branch> git fetch FROM intermediate web (Dockerfile) intermediate (Chef)

6. Chef + Packer AWS Ҡߦ౰ॳ͔Β2೥Ҏ্Ҿ͖ܧ͕Ε͖ͯͨൿ఻ͷ Chef Ϩγϐ Packer Ͱ ubuntu:14.04

   Πϝʔδ্ʹϓϩϏδϣχϯά
 => Private Registry ʹ push

7. Chef + Packer ??? ઐ༻ͷ EC2 Πϯελϯε1୆ͷΈͰՔಇ͍ͯͨ͠
 ΋͸΍ਓؒͷ Macbook ͰϓϩϏδϣχϯάͰ͖ͳ͘ͳ͍ͬͯͨ

   1Πϝʔδ࡞Δͷʹ1࣌ؒҎ্ Ͱ͖͕͋ͬͨΠϝʔδ͸ 3GB ௒ Ruby ͷόʔδϣϯΞοϓ΍ apt ύοέʔδ௥Ճ͕໘౗ σϓϩΠ࣌ͷ docker build ΍֤Πϯελϯε΁ͷ഑෍͕஗͍

8. Chef + Packer => ??? ΠϝʔδαΠζΛ΋ͬͱখ͍ͨ͘͞͠… ଞͷϝϯόʔ΋৮Γ΍͍͢ߏ੒ʹ͍ͨ͠… σϓϩΠ଎͍ͨ͘͠… Dockerfile Ͱॻ͖͍ͨ…ʂ

9. 2016/10/11

10. 2016/10/11 Wantedly, Inc. ͔Β Chef ΛҰ૟

11. 2016/10/11 Chef + Packer -> Dockerfile + Docker Compose Ubuntu

    14.04 -> Alpine Linux 3.4 Private Docker Registry -> Amazon ECR Wantedly, Inc. ͔Β Chef ΛҰ૟
12. None

13. Dockerfile αʔϏε͝ͱʹ1ຕͷ Dockerfile build args Ͱ
 - Ruby ͷόʔδϣϯ
 -

    RAILS_ENV FROM alpine:3.4 Dockerfile ϕετϓϥΫςΟε
 Λ࣮ફͯ͠μΠΤοτ

14. Dockerfile Ruby, Node.js ͷΠϯετʔϧ΋
 ಉ͡ Dockerfile ʹॻ͘ ެࣜͷ -alpine Dockerfile

    ͔Βഈआ Alpine ͷόʔδϣϯ΋
 ࣗ෼ͨͪͰ੍ޚ αʔϏεʹ߹Θͤͨݴޠόʔδϣϯ

15. Dockerfile λΠϜελϯϓΛૠೖͯ͠
 ҎԼ͸ຖճڧ੍తʹϏϧυ ιʔείʔυΛ git clone
 Access Token Λ࢖ͬͨೝূ bundle

    install assets:precompile ARG BUILD_DATE --build-args BUILD_DATE=$(date +%Y%m%d%H%M%S)

16. Docker Compose શΠϝʔδ Docker Compose
 ܦ༝Ͱ build & push build

    args ΛҰׅ؅ཧ
 Ruby ͷόʔδϣϯΞοϓ΋
 ͔͜͜Β awesome: extends: base build: context: awesome args: - RUBY_MAJOR=2.3 - RUBY_VERSION=2.3.0 - RUBYGEMS_VERSION=2.6.6 - BUNDLER_VERSION=1.13.1 - NODE_VERSION=5.11.1 - NPM_VERSION=3.3.12 awesome-production: extends: awesome build: args: - RAILS_ENV=production image: ${AWS_ECR_DOMAIN}/awesome:intermediate
17. None

18. intermediate-build-server intermediate image Λఆظతʹ build ͢Δαʔό CoreOS on EC2 +

    IAM Role ຖ೔ਂ໷ʹશ intermediate image Λ build -> push

19. intermediate-build-server #!/bin/bash set -eu metadata=$(curl -s http://169.254.169.254/latest/meta-data/iam/security-credentials/intermediate-build-server/) export AWS_ACCESS_KEY_ID=$(echo $metadata

    | jq -r .AccessKeyId) export AWS_SECRET_ACCESS_KEY=$(echo $metadata | jq -r .SecretAccessKey) export AWS_SECURITY_TOKEN=$(echo $metadata | jq -r .Token) document=$(curl -s http://169.254.169.254/latest/dynamic/instance-identity/document) account_id=$(echo $document | jq -r .accountId) region=$(echo $document | jq -r .region) export AWS_ECR_DOMAIN=$account_id.dkr.ecr.$region.amazonaws.com export BUILD_DATE=$(date +%Y%m%d%H%M%S) cd intermediate-dockerfiles if [[ $# -eq 1 ]]; then /opt/bin/docker-compose build $1 else for app in $(cat docker-compose.yml | grep -E '^ [a-z-]+:' | grep -E -- '-(production|qa)' | sed -E 's/^ ([a-z-]*):/\1/'); do echo "[`date`] Building $app..." /opt/bin/docker-compose build $app done fi

20. intermediate-build-server ຊ౰͸ CI as a Service ্Ͱ΍Γ͔ͨͬͨ
 image pull ->

    build -> push Docker 1.10 ͔Β͸ Docker image ͷ࢓૊Έ͕มΘͬͯɺ
 pull ͖ͯͨ͠Πϝʔδͷʮ్த·ͰʯΩϟογϡͱͯ͠
 ࢖͏͜ͱ͕Ͱ͖ͳ͘ͳͬͨ https://docs.docker.com/engine/userguide/storagedriver/ imagesandcontainers/#/content-addressable-storage
21. None

22. intermediate-build-server

23. Ҡߦ݁Ռ

24. Ҡߦ݁Ռ ΠϝʔδαΠζ 3.307 GB -> 2.24 GB Ϗϧυ࣌ؒ 48 m

    -> 16 m 5 s

25. TODO Serverspec ॻ͍͚ͨͲ CI ͕ͳ͍ ECR ʹ࢒ͬͨΰϛΠϝʔδͷ૟আ shallow clone ͰΠϝʔδΛ͞ΒʹμΠΤοτ

    σϓϩΠύΠϓϥΠϯΛݟ௚ͯ͠σϓϩΠߴ଎Խ ͱ͔ͱ͔…

26. To be continued... http://chibadan.connpass.com/event/41625/

27. To be continued... http://chibadan.connpass.com/event/41625/

28. Recap

29. None