I want nginx to search my local host for the file first and on a 404 error it should search server 1.1.1.1.
I am able to fetch the file that is located on local host, but not able to get from server 1.1.1.1.
server {
listen 80;
server_name localhost;
access_log /var/log/nginx/access.log main;
location /products/ {
proxy_next_upstream http_404;
root /var/foo;
}
}
server {
listen 80;
server_name 1.1.1.1;
location /products/ {
#########
}
}
I guess proxy_next_upstream is not switching to the server.
Any help on this would be appreciated.
The proxy_next_upstream directive is a configuration directive to control re-request from a group of upstream servers by a proxy_pass if request to one of them fails. It doesn't make sense without proxy_pass and an upstream block defined. You may use it if you proxy to multiple upstream servers like this:
upstream backends {
server 192.2.0.1;
server 192.2.0.2;
...
}
server {
...
location / {
proxy_pass http://backends;
proxy_next_upstream error timeout http_404;
}
}
If you want nginx to search for a file on disk, and if it's not found - proxy request to another server, configure it e.g. using try_files fallback instead:
location / {
root /path/to/root;
try_files $uri #fallback;
}
location #fallback {
proxy_pass http://...
}
See http://nginx.org/r/try_files for more info about the try_files directive.
Related
Hi I am facing issue when configuring nginx as proxy server to redirect request to my tomcat server. I have 3 tomcat server running on different machine & different port like this
192.168.51.115:8115
192.168.51.120:8120
192.168.51.130:8130
Now I want to config nginx to pass request to my three server sequentially like this
www.example.com/app1
www.example.com/app2
www.example.com/app3
Real IP: 123.123.123.123
This is my configuration under - site-enabled
server {
listen 80;
server_name example.com www.example.com;
location /app1 {
proxy_pass "http://192.168.51.115:8115";
}
location /app2 {
proxy_pass "http://192.168.51.120:8120";
}
location /app3 {
proxy_pass http://192.168.51.130:8130;
}
}
Note: When i put location directive placing just / then it works but doesn't work on /* like app1,app2 or app3
Can you try using ^~ as modifier in your location block ?
like
server {
listen 80;
server_name example.com www.example.com;
location ^~ /app1 {
proxy_pass "http://192.168.51.115:8115";
}
location ^~ /app2 {
proxy_pass "http://192.168.51.120:8120";
}
location ^~ /app3 {
proxy_pass http://192.168.51.130:8130;
}
}
I have my app deployed to a file server here at:
http://example.com/my-team/my-app
We want our app to be facing at:
http://amazingapp.com
So far this is what I have on nginx
server {
listen 80;
server_name http://amazingapp.com;
location / {
proxy_pass http://example.com/my-team/my-app/;
}
}
This works for initial http://amazingapp.com but any subsequent requests http://amazingapp.com/post/1/comment/2 result in 404
Most of the ember deploy examples have the file being served from the same location as the web server, using try_files $uri $uri/ index.html So i don't believe i'm able to go down that path?
I've tried using regex on the location but that requires the proxy_pass to have parameters.
If you could point me in the right direction would be so grateful.
Thanks in advance!
Consider your config below
server {
listen 80;
server_name http://amazingapp.com;
location / {
proxy_pass http://example.com/my-team/my-app;
}
}
When you access http://amazingapp.com/abc your location / will cut abc out of it and append to proxy_pass. Making your url as http://example.com/my-team/my-appabc. Fix is quite simple, just add a trailing/` to your proxy_pass
server {
listen 80;
server_name http://amazingapp.com;
location / {
proxy_pass http://example.com/my-team/my-app/;
}
}
I would proxy a request like the upstream solution.
server_name ~^(?<subdomain>.+)\.example\.com$;
root /dev/null;
location / {
error_page 502 #nextserver;
resolver 127.0.0.1:53 valid=300s;
proxy_pass "https://$subdomain";
}
location #nextserver {
error_page 502 #error;
resolver 127.0.0.1:53 valid=300s;
proxy_pass "https://$subdomain-blahblah";
}
location #error {
return 502 'Service is not available';
}
As you can see I would check https://$subdomain and if it doesn't exist or it down then checks https://$subdomain-blahblah.
it works fine but the problem happen when the second server is down, then Nginx doesn't provide Service is not available message.
So the scenario is like
check Server A -> down
check Server B -> down
Return custom error
I couldn't use upstream because the name of servers is dynamic.
I would suggest you to solve this problem differently. Check out this sample. It shows how you can approach the problem:
http{
listen 80;
root /path/to/static/files;
upstream_server subdomain1{
server 192.168.1.100:8000;
server 192.168.1.101:8000;
}
upstream_server subdomain2{
server 192.168.1.102:8000;
server 192.168.1.103:8000;
}
location / {
server_name subdomain1.example.com;
proxy_pass http://subdomain1;
include /etc/nginx/proxy_pass;
}
location / {
server_name subdomain2.example.com;
proxy_pass http://subdomain2;
include /etc/nginx/proxy_pass;
}
}
I have ngnix configured to load balance four tomcat applications. I have a question about the rewrite/redirect rules for my server configuration section.
How do I make requests for http://zavlb.rand.int.co1 go to http://zavlb.rand.int.co1/zi/za/fpages/aaa/FPAGE_AAA_00_00.xhtml?
upstream zavlb {
ip_hash;
# server applnx1.za.rand.int.co1:8080 weight=2;
server applnx01.za.rand.int.co1:8080 weight=2;
server applnx02.za.rand.int.co1:8080 weight=2;
server applnx03.za.rand.int.co1:8080 weight=2;
server applnx04.za.rand.int.co1:8080 weight=2;
}
server {
listen 80;
server_name zavlb.rand.int.co1;
client_max_body_size 5m;
location / {
proxy_pass http://zavlb;
proxy_set_header Host $host;
}
# redirect server error pages to the static page 404/index.html
#
error_page 404 500 502 503 504 404/index.html;
location = 404/index.html {
root /home/za/www;
access_log /var/log/nginx/access.log combined;
}
}
I apologize if i did not understood this correctly, but it seems to be you a URL redirect? In that case, you can use nginx rewrite module as described here: http://nginx.org/en/docs/http/ngx_http_rewrite_module.html#rewrite. Ex:
rewrite / http://zavlb.rand.int.co1/zi/za/fpages/aaa/FPAGE_AAA_00_00.xhtml last;
However, if you want to serve that file from the backend server (proxy) when requests are hitting your root, you can use nginx try_files, like:
location / {
try_files $uri $uri/ /index.xhtml /zi/za/fpages/aaa/FPAGE_AAA_00_00.xhtml =404;
}
Hope this helps.
I have some problem about nginx with http and https bypass, In upstream block
upstream block:
upstream bypass{
server 192.168.99.1:80; #http
server 192.168.99.2:443 backup; #https
}
When http 80 have a problem (server down, etc), I want to redirect to https 443,
This block does not work for me.
location block:
location / {
proxy_pass https://bypass;
proxy_redirect off;
}
How can I resolve this?
This works well: Create server config section for each backend on different port and forward to both ports internally without ssl.
In this example, you can see how the first server acts as main server with cached content (available via https) and if cache content is not available, use the second server (via http).
(using nginx 1.19.6, just for reference)
upstream backends {
server 127.0.0.1:8082;
server 127.0.0.1:8081 backup;
}
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name example.com;
# ssl certs etc here
location / {
proxy_pass http://backends;
proxy_next_upstream error timeout http_404 http_403;
}
access_log /var/log/nginx/access.log upstreamlog;
}
server {
listen 8081;
location / {
add_header X-Cache MISS;
proxy_pass http://server1;
proxy_set_header Host server1;
}
}
server {
listen 8082;
location / {
add_header X-Cache HIT;
proxy_pass https://server2;
proxy_set_header Host server2;
}
}
Taking a shot in the dark. Assuming you were having issues mixing HTTP and HTTPS in the upstream, you could try this in the location block:
location {
try_files #bypass-http #bypass-https =404;
location #bypass-http {
proxy_pass http://bypass;
proxy_redirect off;
}
location #bypass-https {
proxy_pass https://bypass;
proxy_redirect off;
}
}
And if that didn't work, split the bypass upstream block into bypass1 and bypass2 and reference them accordingly in their corresponding location blocks:
upstream bypass1{
server 192.168.99.1:80; #http
}
upstream bypass2{
server 192.168.99.2:443; #https
}
location {
try_files #bypass-http #bypass-https =404;
location #bypass-http {
proxy_pass http://bypass1;
proxy_redirect off;
}
location #bypass-https {
proxy_pass https://bypass2;
proxy_redirect off;
}
}
A third option would be reference them both on port 80, and ensure the second upstream server redirects HTTP requests to HTTPS.