Dockerを使ってRails5を動かす #Rails

bash

vagrant ssh

in Vagrant

bash

vi Dockerfile

Dockerfile

FROM centos
MAINTAINER taro yamada <taro.yamada@bibo.com.ph>
RUN yum install -y git openssl-devel readline-devel zlib-devel bzip2 make gcc gcc-c++ sqlite-devel
ADD create_app.sh /usr/local/bin/create_app.sh
RUN chmod u+x /usr/local/bin/create_app.sh && /usr/local/bin/create_app.sh
ADD init.sh /usr/local/bin/init.sh
RUN chmod u+x /usr/local/bin/init.sh
EXPOSE 3000
CMD ["/usr/local/bin/init.sh"]

bash

vi create_app.sh

create_app.sh

#!/bin/bash -x
git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
source ~/.bash_profile
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
cd ~/.rbenv/plugins/ruby-build && ./install.sh
rbenv install 2.4.1
rbenv rehash
rbenv global 2.4.1
gem install rails
cd /root
rails new bibo
cd bibo
echo "gem 'therubyracer', platforms: :ruby" >> Gemfile
bundle install
rails g scaffold user name:string age:integer
rake db:migrate

bash

vi init.sh

init.sh

#!/bin/bash -x
cd /root/bibo
source ~/.bash_profile
rails s -b 0.0.0.0 -p 3000 -d
exec /bin/bash

Imageの作成

bash

sudo docker build -t rails .

containerの3000をvagrantの8080に転送する用に設定して起動

bash

sudo docker run -p 8080:3000 -t rails

これでbrowserからアクセスできるはずです。

browser

http://192.168.55.44:8080/users

アクセスできない場合は、以下の項目を確認して下さい。

Vagrant上でFirewallを無効

bash

systemctl stop firewalld

こう表示されたらOK

bash

systemctl status firewalld
# Active: inactive (dead)

Vagrant上で8080がListenされているか確認

bash

ss -natu | grep 8080
#tcp    LISTEN     0      128      :::8080                 :::*

containerが動いているか確認

bash

sudo docker ps
#9eb2ad0c6e9d rails "/usr/local/bin/in..." 1 minutes ago Up 1 minutes 0.0.0.0:8080->3000/tcp   gracious_almeida