要编译image_filter模块与https模块，需要安装 zlib libpng libjpeg libvpx libtiff libfreetype gd-devel pcre-devel libcurl-devel openssl libwebp等模块
yum -y install gcc glibc zlib libpng libjpeg libvpx libtiff libfreetype gd-devel pcre-devel libcurl-devel openssl libwebp pcrewget http://nginx.org/download/nginx-1.21.5.tar.gz编译时需要把ssl与image_filter相关的模块带上
tar zxvf nginx-1.21.5.tar.gz
cd nginx-1.21.5
./configure --prefix=/usr/local/nginx--with-http_stub_status_module --with-http_ssl_module --with-file-aio --with-http_realip_module --with-pcre --with-http_image_filter_module --with-debug
make
make install在正常S3网关生成的图片分享地址uri路径之前加上/<命令>/<参数>/即可
如原公开地址: http://192.168.1.5:7480/bucket1/img/test1.jpg
命令: resize
参数: 宽x高
说明: 缩放是按比例自动适应的，以缩放后最大边为准。
如:
缩放后公有地址: http://192.168.1.3:8000/resize/360x240/bucket1/img/test1.jpg
命令: crop
参数: 宽x高
说明：剪切是先缩放到相应尺寸后再居中剪切。
如:
缩放后公有地址: http://192.168.1.3:8000/crop/240x240/bucket1/img/test1.jpg
命令: rotate
参数: 旋转角度，只有 90|180|270这三种角度有效
如:
缩放后公有地址: http://192.168.1.3:8000/rotate/90/bucket1/img/test1.jpg
假设S3 API接口地址是 http://192.168.1.5:7480 http://192.168.1.6:7480 (Ceph + rgw)，nginx侦听端口为8000
*说明：本nginx只能做图片缩放、剪切、旋转功能代理，**不可作为S3 API代理(*S3API的header中签名算法会导致代理后验签失败)
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include 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"' '$upstream_addr';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
upstream rgw.ceph {
server 192.168.1.5:7480;
server 192.168.1.6:7480;
}
proxy_cache_path /tmp/nginx-thumbnails levels=1:2 keys_zone=thumbnail_cache:256M inactive=60d max_size=2048M;
# another virtual host using mix of IP-, name-, and port-based configuration
#
server {
listen 8000;
server_name localhost;
access_log logs/access_8000.log main;
error_log logs/error_8000.log error;
location / {
root html;
index index.html index.htm;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_connect_timeout 300s;
proxy_send_timeout 300s;
proxy_read_timeout 300s;
proxy_pass http://rgw.ceph/;
error_page 415 = /empty;
}
location = /empty {
empty_gif;
}
location ~ ^/resize/(\d+)x(\d+)/(.*)$ {
image_filter test;
#root html;
set $ur $3;
if ($args != "") {
set $ur $3?$args;
}
set $width $1;
set $height $2;
#add_header debug_nginx "$1,$2,$3,$4";
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://rgw.ceph/$ur;
if ($width = "0") {
set $width "-";
}
if ($height = "0") {
set $height "-";
}
image_filter_buffer 200M;
image_filter_interlace on;
image_filter resize $width $height;
error_page 415 = /empty;
}
location ~ ^/crop/(\d+)x(\d+)/(.*)$ {
image_filter test;
set $ur $3;
if ($args != "") {
set $ur $3?$args;
}
set $width $1;
set $height $2;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://rgw.ceph/$ur;
if ($width = "0") {
set $width "-";
}
if ($height = "0") {
set $height "-";
}
image_filter_buffer 200M;
image_filter_interlace on;
image_filter crop $width $height;
error_page 415 = /empty;
}
location ~ ^/rotate/(\d+)/(.*)$ {
image_filter test;
set $ur $2;
if ($args != "") {
set $ur $2?$args;
}
set $degree $1;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://rgw.ceph/$ur;
image_filter_buffer 200M;
image_filter_interlace on;
image_filter rotate $degree;
error_page 415 = /empty;
}
}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}