# tail -f /var/log/td-agent/td-agent.log

2015-08-19 14:17:14 +0900 [error]: Permission denied @ xxxxxxx - /var/log/nginx/error.log
  2015-08-19 14:17:14 +0900 [error]: suppressed same stacktrace

$ sudo vim /etc/init.d/td-agent

- TD_AGENT_USER=td-agent
- TD_AGENT_GROUP=td-agent

+ TD_AGENT_USER=root
+ TD_AGENT_GROUP=root

sudo systemctl daemon-reload

# tail -f /var/log/td-agent/td-agent.log

2015-08-19 14:17:15 +0900 [info]: following tail of /var/log/nginx/access.log
2015-08-19 14:17:15 +0900 [info]: following tail of /var/log/nginx/error.log

<source>
  type tail
  format nginx
  path /var/log/nginx/access.log
  pos_file /var/log/td-agent/nginx-access.pos
  tag nginx.access
</source>

<source>
  type tail
  format /^(?<remote>[^ ]*) (?<host>[^ ]*) (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)" "(?<forwarder>[^\"]*)")?/
  time_format %d/%b/%Y:%H:%M:%S %z
  path /var/log/nginx/access.log
  pos_file /var/log/td-agent/nginx-access.pos
  tag nginx.access
</source>

$ sudo systemctl restart td-agent

[error]: failed to configure sub output redshift: Other '' plugin already use same buffer_path: type = , buffer_path = *

buffer_path /logs/td-agent/nginx/logs

buffer_path /logs/td-agent/nginx/logs_${tag_parts[0]}_${tag_parts[1]}

$ cd /usr/local/src
$ sudo wget https://download.elastic.co/kibana/kibana/kibana-4.1.1-linux-x64.tar.gz
$ sudo tar xvzf kibana-4.1.1-linux-x64.tar.gz

$ vi /usr/local/src/kibana-4.1.1-linux-x64/config/kibana.yml

- host: "0.0.0.0"
+ host: "localhost"

$ sudo mkdir -p /opt/kibana
$ sudo cp -R /usr/local/src/kibana-4.1.1-linux-x64/* /opt/kibana/

/opt/kibana/bin/kibana

$ sudo vi /etc/systemd/system/kibana4.service

[Service]
ExecStart=/opt/kibana/bin/kibana
Restart=always
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=kibana4
User=root
Group=root
Environment=NODE_ENV=production

[Install]
WantedBy=multi-user.target

$ sudo systemctl start kibana4
$ sudo systemctl enable kibana4

$ sudo vi /etc/nginx/conf.d/default.conf

server {
    listen       80;
    server_name  ec2-xx-xx-xxx-xxx.ap-northeast-1.compute.amazonaws.com;

    auth_basic "Restricted Access";
    auth_basic_user_file /etc/nginx/htpasswd.users;

    location / {
        proxy_pass http://localhost:5601;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

}

$ sudo systemctl restart nginx

# vim /etc/yum.repos.d/nginx.repo

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/centos/7/$basearch/
gpgcheck=0
enabled=1

$ sudo yum install --enablerepo=nginx nginx

$ sudo systemctl disable httpd
$ sudo systemctl enable nginx
$ sudo systemctl start nginx
$ systemctl status nginx

nginx.service - nginx - high performance web server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled)
   Active: active (running) since Mon 2015-08-03 06:07:44 UTC; 2s ago
     Docs: http://nginx.org/en/docs/
  Process: 12642 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)
  Process: 12641 ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)
 Main PID: 12645 (nginx)
   CGroup: /system.slice/nginx.service
           ├─12645 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx....
           └─12646 nginx: worker process

Aug 03 06:07:44 ip-172-31-19-253 systemd[1]: Starting nginx - high performan....
Aug 03 06:07:44 ip-172-31-19-253 nginx[12641]: nginx: the configuration file...k
Aug 03 06:07:44 ip-172-31-19-253 nginx[12641]: nginx: configuration file /et...l
Aug 03 06:07:44 ip-172-31-19-253 systemd[1]: Failed to read PID from file /r...t
Aug 03 06:07:44 ip-172-31-19-253 systemd[1]: Started nginx - high performanc....
Hint: Some lines were ellipsized, use -l to show in full.

$ sudo yum -y install git libffi libffi-dev gcc openssl-devel readline-devel zlib-devel

$ git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
$ git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ exec $SHELL
$ source ~/.bash_profile

$ rbenv install -list

Available versions:
   :
   :
  2.0.0-p643
  2.0.0-p645 ← 2.0.0の最新 (※2015/08/06時点)
  2.1.0-dev
  2.1.0-preview1
  2.1.0-preview2
  2.1.0-rc1
   :

$ rbenv install -v 2.0.0-p645

$ rbenv rehash

$ rbenv global 2.0.0-p645

$ ruby -v
ruby 2.0.0p645 (2015-04-13 revision 50299) [x86_64-linux]