I have a uwsgi (python flask app) running in a Docker exposed port 8080.
I have an nginx running in another Docker ports 80 and 443.
Here is a snippet from my config
upstream backend {
server my-uwsgi:8080;
}
server {
server_name api.my.app my.app;
listen 80;
listen [::]:80;
return 301 https://$host$request_uri;
}
server {
server_name api.my.app my.app;
...
location = /demo1/byAddress
{
include uwsgi_params;
uwsgi_param X-Real-IP $remote_addr;
uwsgi_param X-Forwarded-For $remote_addr;
uwsgi_param Host $host;
uwsgi_pass backend;
}
This does stand up, but is non functional.
In the nginx docker I can do telnet my-uwsgi:8080 so I know it can connect to the uwsgi Docker.
But in /var/log/nginx/error.log This is the first entry:
2022/01/10 00:04:49 [emerg] 9#9: host not found in upstream "my-uwsgi:8080" in `/etc/nginx/conf.d/my.conf:10`
I cannot figure out a combination that works, what is the magic that I am missing here?
Thanx
Related
I have a very simple Docker container, running NGINX and Flask...
My NGINX instance is the front door, which then reverse proxies traffic through to the Flask app.
My issue currently is that I can access the flask app locally, through the Docker internal ip: 172.18.0.2:5000 BUT not as my NGINX instance is configured, I want to access it through localhost:5000.
My code listed is my current nginx.conf file. I have tried different variations of this...However with no luck. Any assistance will be appreciated, How I could access it through localhost, or with my host PC ip.....As mentioned, I cannot figure out why its only accessible through the Docker internal container IP
server {
listen 443 ssl;
listen [::]:443 ssl;
listen 5000;
server_name localhost;
ssl_certificate /root/ssl/cert.pem;
ssl_certificate_key /root/ssl/key.pem;
location / {
proxy_pass "http://localhost:5000/";
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $host;
}
error_page 500 502 503 504 /50x.html;
}
Problem:
We've setup a docker container running on port 3002 and then configured port 3002 to /path/ on my domain www.example.com. There's an express rest api is running on 3002 port container which outputs the req.hostname and when I make a request from let's say www.abc.com, the consoled value of req.hostname is shown to be www.example.com instead of www.abc.com.
Nginx Conf
server {
listen 443 ssl;
ssl_certificate /etc/ssl/__abc.crt;
ssl_certificate_key /etc/ssl/abc.key;
listen 80 default_server;
listen [::]:80 default_server;
location / {
proxy_pass http://localhost:3001/;
proxy_set_header Host $host;
}
location /path/ {
proxy_pass http://localhost:3002/;
proxy_set_header Host $http_host;
}
}
What changes do I have to make so I can get the www.abc.com in consoled value?
Nginx's location blocks should be ordered such that more specific expressions come first.
In your example, you should have:
location /path/ {
proxy_pass http://localhost:3002/;
proxy_set_header Host $http_host;
}
location / {
proxy_pass http://localhost:3001/;
proxy_set_header Host $host;
}
Make sure your changes take effect by either running nginx -s reload or restarting the container
I'm trying to host several websites on my droplet. I'm to do that, I'm using NGINX (not container) as reverse proxy to Dockerized apps. One such app I'm using is the dockerized Mediawiki set to run on 0.0.0.0:8081.
Mediawiki container is based on php7.2-apache.
Nginx configuration :
server {
listen 443 ssl;
index index.php;
server_name my.website.com;
ssl_stapling on;
ssl_stapling_verify on;
location / {
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://0.0.0.0:8081;
}
ssl_certificate /etc/letsencrypt/live/my.website.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/my.website.com/privkey.pem; # managed by Certbot
}
I run the application on port 8081, as can be seen by through docker ps -a
CONTAINER IMAGE PORTS
e40c9815d6cc mediawiki 0.0.0.0:8081 -> 80/tcp
I can access my.website.com, but it shows the default Apache Ubuntu default page. Accessing other pages and resources (index.php, /folder/index.php, images/pic.jpg) returns 404.
Testing the container with similar setup on my machine local works. I think there maybe something up I didn't get with the NGINX config.
Help?
I want using nginx make reverse proxy(docker container). However, there have been some exceptions.
issue context
Centos version: 7.4.1708
nginx version: 1.13.12
docker version: 1.13.1
Open firewall and exposed 80 port
nginx reproxy on docker container: failed (113: No route to host) while connecting to upstream
nginx reproxy on host: function normal
nginx configuration:
server
{
listen 80;
server_name web.pfneo.geo;
location / {
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://172.18.0.249:88;
}
access_log logs/web.tk_access.log;
}
close the firewall
nginx reproxy on docker container: function normal
nginx reproxy on host: function normal
Open firewall not expose port
nginx app service on docker container（88 port）: function normal
It seems that this problem is caused by docker?
Docker can ignore the host firewall?
I'm running a rails app in a Debian server (ip 192.168.1.193) with passenger as a standalone
$ cd /home/hector/webapps/first
$ passenger start -a 127.0.0.1 -p 3000
And I want to serve this app throw Nginx with reverse proxy in a different sub folder as:
http://192.168.1.193/first
My nginx.conf server:
...
server {
listen 80;
server_name 127.0.0.1;
root /home/hector/webapps/first/public;
passenger_base_uri /first/;
location /first/ {
proxy_pass http://127.0.0.1:3000;
proxy_set_header Host $host;
}
}
...
Then I run the Nginx server
$ /opt/nginx/sbin/nginx
With one rails app running with this configuration everything seems to work ok.
But when I try to add my second app
$ cd /home/hector/webapps/second
$ passenger start -a 127.0.0.1 -p 3001
with this nginx.conf file:
...
server {
listen 80;
server_name 127.0.0.1;
root /home/hector/webapps/first/public;
passenger_base_uri /first/;
location /first/ {
proxy_pass http://127.0.0.1:3000;
proxy_set_header Host $host;
}
}
server {
listen 80;
server_name 127.0.0.1;
root /home/hector/webapps/second/public;
passenger_base_uri /second/;
location /second/ {
proxy_pass http://127.0.0.1:3001;
proxy_set_header Host $host;
}
}
…
and I reload the Nginx server configuration
$ /opt/nginx/sbin/nginx -s reload
nginx: [warn] conflicting server name "127.0.0.1" on 0.0.0.0:80, ignored
I get a warning and I cannot access the second app from
http://192.168.1.193/second/
The server returns 404 for the second app and the first app is still running.
I think you just have to put both locations into the same server:
server {
listen 80;
server_name 127.0.0.1;
location /first/ {
root /home/hector/webapps/first/public;
passenger_base_uri /first/;
proxy_pass http://127.0.0.1:3000/;
proxy_set_header Host $host;
}
location /second/ {
root /home/hector/webapps/second/public;
passenger_base_uri /second/;
proxy_pass http://127.0.0.1:3001/;
proxy_set_header Host $host;
}
}