i configured an apache proxy to forward all calls to another web server. I need to exclude the path http://my-server/{var1}/api/{all-path} (where var1 is variable) from this rule.
How can I do?
Thanks
I tried with:
ProxyPassMatch ^/(.*)/api/(.*)$ !
ProxyPass / http://127.0.0.1:8080/
but not working.
I'd say you need a negative lookahead in your matching pattern and only a single proxy directive:
ProxyPassMatch ^/[^/]+/(?!api/) http://127.0.0.1:8080/
That should match any path starting with something and a following slash, followed by anything that is NOT "api/".
Related
I'm trying to set a reverse proxy by replacing the domain and keeping the subdomain.
What I want to achieve is:
abc.example.org shall be reverse proxied to abc.hello.dev
xyz.example.org shall be reverse-proxied to xyz.hello.dev
Note: abc, xyz, etc. are completely dynamic.
What I'm currently not getting is the syntax for ProxyPass and ProxyPassReverse.
Thank you very much,
Cheers
Fritz
Found the solution:
<IfModule mod_proxy.c>
SetEnvIf Host "^([^.]*).example.org$" SUBDOMAIN=$1
ProxyPassInterpolateEnv On
ProxyPass / https://${SUBDOMAIN}.hello.dev/ interpolate
ProxyPassReverse / https://${SUBDOMAIN}.hello.dev/ interpolate
</IfModule>
I have to redirect all apache requests on 80 to tomcat on 8080, except one path.
So, if a receive http://example.com/anything --> tomcat:8080.
But, if the url is that: http://example.com/site --> apache should serve and no redirect is needed.
Currently, there is a folder named site inside /var/www/html/.
This is my current configuration file:
site.conf (this file contains only the following and is inside the conf.d folder)
<LocationMatch "/*">
Allow from all
ProxyPass /site !
ProxyPass http://127.0.0.1:8080
ProxyPassReverse http://127.0.0.1:8080
</LocationMatch>
I think this is a simple thing to accomplish with apache, but I have tried everything that I could find and I am still getting the error:
ProxyPass|ProxyPassMatch can not have a path when defined in a location.
The thing is that the root website is running on tomcat, but the other runs on apache (the one that I called site in this question).
If anyone can help, I appreciate.
Thanks!
Update 1 - 09/06/2017
I get it to work if I remove the LocationMatch and put the ProxyPass
direct in the .conf file:
ProxyPass /site !
ProxyPassReverse /site !
ProxyPass / http://127.0.0.1:8080
ProxyPassReverse / http://127.0.0.1:8080
But, I would like to know, why is that? What is the impact of putting this directives outside the LocationMatch tag? And, most important, why I cannot accomplish the same result using the LocationMatch?
I think the error is pretty clear:
ProxyPass|ProxyPassMatch can not have a path when defined in a location.
According to the documentation, inside a context block like Location or LocationBlock the ProxyPass directive does not accept a path:
When used inside a <Location> section, the first argument is omitted and the local directory is obtained from the <Location>. The same will occur inside a <LocationMatch> section; however, ProxyPass does not interpret the regexp as such, so it is necessary to use ProxyPassMatch in this situation instead.
You're getting the error because you were trying to use a path:
ProxyPass /site !
You could try to resolve this in theory by using multiple <Location> sections, like this:
<Location />
ProxyPass http://backend/
</Location>
<Location /site>
ProxyPass !
</Location>
The ordering of these sections is important.
Your solution of using ProxyPass directives outside of a LocationMatch block is probably the simplest solution.
As a side note, your LocationMatch directive is incorrect. The argument to LocationMatch is a regular expression, and /* would only match URLs consisting only of / characters. That is, it would match / or // or /////////, etc. I think you really meant /.*. The * in a regular expression means "the previous character, zero or more times".
I am in the middle of migrating a server and my old virtual host config was like this
ProxyPass /images !
ProxyPass / ajp://domain.tld:8010/ nocanon
It passes ok to Tomcat but the ! directive is being ignored. There are no errors thrown. What might be causing this?
If the /images rule matches but the path is not valid, e.g. cannot be found, Apache will try the next rule.
Only if all other rules are failing too, the first matched rule is used (and the corresponding error is shown, e.g. 404 instead of proxy error).
I am wondering how to configure my httpd server to serves the following pages:
My need is to serve static content located in my /var/www/static when url is /context/static and to proxy the remaining to a tomcat server
In this order:
/context/static/* --> files served by httpd
/context/* --> resources served by tomcat
I have tried to rewrite /context/static/* to a folder pointing to my /var/www/static and added the ProxyPath directive for the remaining but I can't get it working.
What are the best practices and how to achieve that ?
Thanks in advance
Well, in fact it is quiet easy...
Having such folders configured:
/var/www/static/
|- css/*
|- js/*
\ medias/*
The following httpd configuration will redirect static/* to the /var/www and the rest will be proxied
# first rewrite for statics
RewriteEngine On
RewriteRule ^/context/static/(.+)$ /static/$1
# then proxy remaining...
ProxyPass /context http://127.0.0.1:8080/context
ProxyPassReverse /context http://127.0.0.1:8080/context
I've found the following approach that works and is quite general. (4/12/2018)
Location/Proxypass expressions always take priority over any other location block, so you have to Exclude the paths that you don't want to be proxied. the "?!" does that in the regex. Since static content is, um, static, it is not so bad to require that the apache configuration be updated if another directory is needed to be served directly for a different media type.
The following was taken from a server that was proxying a Python Flask application.
<LocationMatch "^/(?!js|css|media)" >
ProxyPass http://127.0.0.1:5000
ProxyPassReverse http://127.0.0.1:5000
</LocationMatch>
<Location "/">
Require all granted
</Location>
Both of the existing answers rely on Regular Expressions. While they work, it is possible to do this without such complicated constructs. ProxyPass can take "!" as a second parameter, in which case it doesn't proxy the matching URL. For example
ProxyPass /context/static/ !
ProxyPass /context http://127.0.0.1:8080/context
ProxyPassReverse /context http://127.0.0.1:8080/context
or, with multiple exclusions,
ProxyPass /js !
ProxyPass /css !
ProxyPass /media !
ProxyPass / http://127.0.0.1:5000/
ProxyPassReverse / http://127.0.0.1:5000/
These exceptions need to come before the more general rule in order to take precedence.
Thanks to freenode user "thumbs" in #httpd.
Using apache2 I want to set up an AJP proxy for a Tomcat server that maps an internal servlet URL to a completely different URL externally. Currently I am using the following configurations:
Apache2 configuration:
<IfModule mod_proxy.c>
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name ajp://192.168.1.30:8009/servlet_name
</IfModule>
Note that external_name and servlet_name are different.
Tomcat 6 configuration:
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
This however does not work. Apache seems to forward http requests to Tomcat.
However the URLs and redirects returned by Tomcat are still using the original servlet_name and Apache does not map them to external_name.
Is this possible at all with AJP? If not can it be done using a plain http proxy instead?
Mapping different names between Apache and Tomcat can be quite tricky and depends much on how the web application builds its urls for the response.
Basically your setup is correct, but if your application uses its own servlet_name for redirects and urls ProxyPassReverse won't map them.
If you need this kind of setup have a look at mod_proxy_html (Apache 3rd party module) which will parse and rewrite also the contents, not only the url and response headers as mod_proxy.
( A late answer, but I just ran into this problem myself. )
It appears that ProxyPassReverse using ajp: doesn't work because the headers returned from a redirect don't have an ajp: URL in Location:, they have a http: URL. ProxyPassReverse just causes a rewrite of matching headers, and
that string doesn't match what's being returned.
This should work (provided the Location: field uses that numerical address
and not a host name.)
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
( You can use 'curl -I' to inspect the redirect headers and debug. )
See this note, or a more involved solution here using mod_proxy_html
for rewriting the URLs in web pages as well.
Additionally to the answer from Steven D. Majewski there is one more problem. If the target application uses the request host name to create a redirect (302 Moved Temporarily), it won't work with multiple host names. One must create multiple configurations for every name, like this:
ProxyPassReverse /external_name http://server.com/servlet_name
ProxyPassReverse /external_name http://server.org/servlet_name
ProxyPassReverse /external_name http://server.co.uk/servlet_name
Actually the ProxyPreserveHost on must solve this issue and replace the HOST header in the incoming requests with the address or IP specified in ProxyPass. Unfortunately it seems to be the ProxyPreserveHost doesn't work with ajp connectors. The tomcat in my configuration still received the host name got from browser instead replacing it with 192.168.1.30. As result the browser based redirects still didn't work for every name.
Following configuration didn't work as well :-(
# NOT WORKING !!!
ProxyPassReverse /external_name http://%{HTTP_HOST}/servlet_name
The workaround was using http instead of ajp.
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
Did somebody investigate it deeply?
For me, this seemed to cause problems:
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name http://192.168.1.30/servlet_name
While this seemed to work:
ProxyPreserveHost on
ProxyPass /external_name ajp://192.168.1.30:8009/servlet_name
ProxyPassReverse /external_name ajp://192.168.1.30:8009/servlet_name
I don't know why but it just did.