Ansible 筆記 - 設定 Nginx 啟用 ngx_http_geoip_module.so 片段程式 @ Ubuntu 14.0

其實該寫成 Ansible Role 的，但一時之間有點懶，先把練習的片段紀錄一下。

安裝 nginx-module-geoip：

$ cat geoip-nginx.yml
---
    - name: install geoip packages
      apt: name={{ item }} update_cache=yes state=latest
      with_items:
        - nginx-module-geoip
      when: install_package is defined and install_package

    - name: check maxmind db - http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz
      command: bash -c 'test -e /data/GeoIP.dat || curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz | gunzip - > /data/GeoIP.dat'

    - name: check maxmind db - http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
      command: bash -c 'test -e /data/GeoLiteCity.dat || curl http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz | gunzip - > /data/GeoLiteCity.dat'

設定 nginx.conf：

$ cat server-deploy.yml
...
  tasks:
    ...
    - include: geoip-nginx.yml
    - name: setup nginx config file - add modules/ngx_http_geoip_module.so
      lineinfile:
        dest: /etc/nginx/nginx.conf
        insertbefore: '^user '
        line: 'load_module "modules/ngx_http_geoip_module.so";'

    - name: setup nginx config file - setup geoip resource path
      lineinfile:
        dest: /etc/nginx/nginx.conf
        insertafter: '^http {'
        line: '    geoip_country /data/GeoIP.dat; geoip_proxy 192.168.0.0/16; geoip_proxy 10.0.0.0/24; geoip_proxy_recursive on;'
        #line: '    geoip_city    /data/GeoLiteCity.dat;'

    - name: setup nginx file to enable geoip - update log format
      lineinfile:
        dest: /etc/nginx/nginx.conf
        regexp: ".*?http_user_agent.*?http_x_forwarded_for"
        line: "                      '\"$http_user_agent\" \"$http_x_forwarded_for\"' $geoip_country_code \"$geoip_country_name\" ;"

    - name: setup nginx file to enable geoip - add GEOIP_COUNTRY_CODE for FastCGI
      lineinfile:
        dest: /etc/nginx/fastcgi_params
        insertbefore: "^fastcgi_param QUERY_STRING"
        line: "fastcgi_param     GEOIP_COUNTRY_CODE $geoip_country_code;"

如此一來，產生的 nginx.conf 如下：

$ cat /etc/nginx/nginx.conf && sudo nginx -t

load_module "modules/ngx_http_geoip_module.so";
user www-data;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    geoip_country /data/GeoIP.dat; geoip_proxy 192.168.0.0/16; geoip_proxy 10.0.0.0/24; geoip_proxy_recursive on;
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"' $geoip_country_code "$geoip_country_name" ;

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

查看 /var/log/nginx/access.log 就可以看到類似的範例：

.... CN,CHN,"China"
.... US,USA,"United States"

更多變數定義，請參考：http://nginx.org/en/docs/http/ngx_http_geoip_module.html