How to preserve request url with nginx proxy pass

Question

I was trying to use Thin app server and had one issue   When nginx proxies the request to Thin  or Unicorn  using proxy pass http   my app upstream  the application receives the modified URL sent by nginx  http   my app upstream     What I want is to pass the original URL and the original request from client with no modification as the app relies heavily on it   The nginx  doc says      If it is necessary to transmit URI in   the unprocessed form then directive   proxy pass should be used without URI   part    But I don t understand how exactly to configure that as the related sample is actually using URI   location   some path      proxy pass   http   127 0 0 1      So could you please help me figuring out how to preserve the original request URL from the client

User · Answer

nginx also provides the  http host variable which will pass the port for you  its a concatenation of host and port   So u just need to do   proxy set header Host  http host

User · Answer

I think the proxy set header directive could help   location         proxy pass http   my app upstream      proxy set header Host  host

User · Answer

for my auth server     this works  i like to have options for  auth for my own humanized readability     or also i have it configured by port upstream for machine to machine      at the beginning of conf                                                       upstream auth       server 127 0 0 1 9011 weight 1 fail timeout 300s      keepalive 16        Inside my 443 server block            if  -d  request filename              rewrite        scheme    http host uri  permanent             location  auth             proxy pass http    http host 9011            proxy set header Origin           http    host            proxy set header Host              http host 9011            proxy set header X-Forwarded-For   proxy add x forwarded for            proxy set header Upgrade           http upgrade            proxy set header Connection        http connection            proxy http version 1 1            At the bottom of conf                                                                                                                                                    Proxies for all the Other servers on other ports upstream                                                                                                                                                                                      Fusion                                  server       listen 9001 ssl                  Lock it down                      SSL certificate locations     ssl certificate  etc letsencrypt live allineed app fullchain pem      ssl certificate key  etc letsencrypt live allineed app privkey pem     Exclusions      include snippets exclusions conf     Security      include snippets security conf      include snippets ssl conf     Fastcgi cache rules      include snippets fastcgi-cache conf      include snippets limits conf      include snippets nginx-cloudflare conf                Location upstream                     location                proxy pass http   auth          proxy set header Origin           http    host          proxy set header Host              host  server port          proxy set header X-Forwarded-For   proxy add x forwarded for          proxy set header Upgrade           http upgrade          proxy set header Connection        http connection          proxy http version 1 1                if  -d  request filename            rewrite        scheme    http host uri  permanent

User · Answer

In case something modifies the location that you re trying to serve  e g  try files  this preserves the request for the back-end   location       proxy pass http   127 0 0 1 8080 request uri

User · Answer

In my scenario i have make this via below code in nginx vhost configuration   server   server name dashboards etilize com   location         proxy pass http   demo etilize com dashboards       proxy set header Host  http host        http host will set URL in Header same as requested

User · Answer

Just  proxy set header Host  host  miss port for my case  Solved by         location          proxy pass http   BACKENDIP        include  etc nginx proxy conf           and then in the proxy conf        proxy redirect off      proxy set header Host  host  server port      proxy set header X-Real-IP  remote addr      proxy set header X-Forwarded-For  proxy add x forwarded for

User · Answer

To perfectly forward without chopping the absoluteURI of the request and the Host in the header   server       listen 35005       location             rewrite                          http host uri is args args           rewrite                      http uri is args args  break          proxy set header   Host      host           proxy pass         https   deploy org local 35005            Found here  https   opensysnotes wordpress com 2016 11 17 nginx-proxy pass-with-absolute-url

User · Answer

Note to other people finding this  The heart of the solution to make   nginx not manipulate the URL  is to remove the slash at the end of the   Copy  proxy pass directive  http   my app upstream vs    http   my app upstream      Hugo Josefson   I found this above in the comments but I think it really should be an answer

[ruby] How to preserve request url with nginx proxy_pass

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