如何解决发送Context-Length标头后，ElasticBeanstalk nginx返回400错误请求
我们正在Docker容器中尝试我们的第一个.Net Core 3.0 Web应用程序。我们正在通过AWS ElasticBeanstalk部署到Amazon Linux 2 AMI。我们能够执行服务器的任何GET请求，而不会出现问题。请求中带有正文的任何内容都会失败，并显示400 Bad Request错误。 PATCH和POST均失败。如果端点不希望有主体，则PATCH起作用。我们发送的内容只有147个字节，因此它甚至不应达到默认的client_max_body_size 1m。
我发现，如果在邮递员测试中删除Content-Length标头，则请求会到达服务器，但似乎不包含任何正文。
我已经测试了从VisualStudio和Docker Desktop在本地运行的情况，并且可以正常工作。我的本地操作系统是Windows 10，但不是Linux，并且我不在本地使用nginx或IIS。
我尝试通过将名为nginxext.conf的文件放在“ .platform / nginx / conf.d”中，将client_max_body_size设置为0（和20m）。我很确定它正在被读取，因为由于文件不是UTF-8编码的，所以第一次出现错误。
我知道我缺少一些非常基本的东西。在Linux上的Docker中为接受POST的网站使用.Net Core 3.0，这似乎并不是一个简单的配置。 ???更不用说用身体贴东西了。
预先感谢
侧面问题：有人知道我在哪里可以找到AWS用于其Amazon Linux 2映像的“默认” nginx配置吗？
解决方法
基于评论。
我使用Docker running on 64bit Amazon Linux 2/3.1.0上的示例应用程序检查了默认的nginx配置文件。
/etc/nginx/nginx.conf
# Elastic Beanstalk Nginx Configuration File
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
worker_rlimit_nofile 32136;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
include conf.d/*.conf;
map $http_upgrade $connection_upgrade {
default "upgrade";
}
server {
listen 80 default_server;
gzip on;
gzip_comp_level 4;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
access_log /var/log/nginx/access.log main;
location / {
proxy_pass http://docker;
proxy_http_version 1.1;
proxy_set_header Connection $connection_upgrade;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
# Include the Elastic Beanstalk generated locations
include conf.d/elasticbeanstalk/*.conf;
}
/etc/nginx/conf.d/elasticbeanstalk-nginx-docker-upstream.conf
upstream docker {
server 172.17.0.2:8000;
keepalive 256;
}
/etc/nginx/conf.d/healthd_logformat.conf
log_format healthd '$msec"$uri"'
'$status"$request_time"$upstream_response_time"'
'$http_x_forwarded_for';[ec2-user@ip-172-31-36-64 conf.d]$ readlink -f ./healthd_logformat.conf
/etc/nginx/conf.d/elasticbeanstalk/healthd.conf
if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
set $year $1;
set $month $2;
set $day $3;
set $hour $4;
}
我最终请求AWS的支持。在来回浏览了一些链接之后，他提供了我们能够解决的问题。
https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/linux-nginx?view=aspnetcore-3.1 https://github.com/aspnet/KestrelHttpServer/issues/1263
在部署过程中，我最终得到了完整的nginx.conf文件，但是，我很确定这些行对我来说是解决此问题的原因。
http
server
location / {
proxy_pass http://docker;
proxy_http_version 1.1;
proxy_set_header Connection $http_connection;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_cache_bypass $http_upgrade;
client_max_body_size 100M;
我还将这些行添加到Startup.Configuration（）方法的开头。
using Microsoft.AspNetCore.HttpOverrides;
app.UseForwardedHeaders(new ForwardedHeadersOptions
{
ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});
感谢Ali P（AWS支持）和@Marcin的帮助。
完整的nginx.conf文件
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
# configuration file /etc/nginx/nginx.conf:
# Elastic Beanstalk Nginx Configuration File ( nginx for my app ) :
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
worker_rlimit_nofile 32136;
events {
worker_connections 2048;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
include conf.d/*.conf;
map $http_upgrade $connection_upgrade {
default "upgrade";
}
server {
listen 80 default_server;
gzip on;
gzip_comp_level 4;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
access_log /var/log/nginx/access.log main;
location / {
proxy_pass http://docker;
proxy_http_version 1.1;
#proxy_set_header Connection $connection_upgrade;
#proxy_set_header Connection keep-alive;
#proxy_set_header Connection "Upgrade";
proxy_set_header Connection $http_connection;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_cache_bypass $http_upgrade;
client_max_body_size 100M;
}
# Include the Elastic Beanstalk generated locations
include conf.d/elasticbeanstalk/*.conf;
}
}
# configuration file /etc/nginx/mime.types:
types {
text/html html htm shtml;
text/css css;
text/xml xml;
image/gif gif;
image/jpeg jpeg jpg;
application/javascript js;
application/atom+xml atom;
application/rss+xml rss;
text/mathml mml;
text/plain txt;
text/vnd.sun.j2me.app-descriptor jad;
text/vnd.wap.wml wml;
text/x-component htc;
image/png png;
image/svg+xml svg svgz;
image/tiff tif tiff;
image/vnd.wap.wbmp wbmp;
image/webp webp;
image/x-icon ico;
image/x-jng jng;
image/x-ms-bmp bmp;
font/woff woff;
font/woff2 woff2;
application/java-archive jar war ear;
application/json json;
application/mac-binhex40 hqx;
application/msword doc;
application/pdf pdf;
application/postscript ps eps ai;
application/rtf rtf;
application/vnd.apple.mpegurl m3u8;
application/vnd.google-earth.kml+xml kml;
application/vnd.google-earth.kmz kmz;
application/vnd.ms-excel xls;
application/vnd.ms-fontobject eot;
application/vnd.ms-powerpoint ppt;
application/vnd.oasis.opendocument.graphics odg;
application/vnd.oasis.opendocument.presentation odp;
application/vnd.oasis.opendocument.spreadsheet ods;
application/vnd.oasis.opendocument.text odt;
application/vnd.openxmlformats-officedocument.presentationml.presentation
pptx;
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
xlsx;
application/vnd.openxmlformats-officedocument.wordprocessingml.document
docx;
application/vnd.wap.wmlc wmlc;
application/x-7z-compressed 7z;
application/x-cocoa cco;
application/x-java-archive-diff jardiff;
application/x-java-jnlp-file jnlp;
application/x-makeself run;
application/x-perl pl pm;
application/x-pilot prc pdb;
application/x-rar-compressed rar;
application/x-redhat-package-manager rpm;
application/x-sea sea;
application/x-shockwave-flash swf;
application/x-stuffit sit;
application/x-tcl tcl tk;
application/x-x509-ca-cert der pem crt;
application/x-xpinstall xpi;
application/xhtml+xml xhtml;
application/xspf+xml xspf;
application/zip zip;
application/octet-stream bin exe dll;
application/octet-stream deb;
application/octet-stream dmg;
application/octet-stream iso img;
application/octet-stream msi msp msm;
audio/midi mid midi kar;
audio/mpeg mp3;
audio/ogg ogg;
audio/x-m4a m4a;
audio/x-realaudio ra;
video/3gpp 3gpp 3gp;
video/mp2t ts;
video/mp4 mp4;
video/mpeg mpeg mpg;
video/quicktime mov;
video/webm webm;
video/x-flv flv;
video/x-m4v m4v;
video/x-mng mng;
video/x-ms-asf asx asf;
video/x-ms-wmv wmv;
video/x-msvideo avi;
}
# configuration file /etc/nginx/conf.d/elasticbeanstalk-nginx-docker-upstream.conf:
upstream docker {
server 172.17.0.3:80;
keepalive 256;
}
# configuration file /etc/nginx/conf.d/healthd_logformat.conf:
log_format healthd '$msec"$uri"'
'$status"$request_time"$upstream_response_time"'
'$http_x_forwarded_for';
# configuration file /etc/nginx/conf.d/elasticbeanstalk/healthd.conf:
if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
set $year $1;
set $month $2;
set $day $3;
set $hour $4;
}
access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour healthd;
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