AWS Loadbalancer infront of OLS + Wordpress

[jchunlai]

Hi,

I am a complete noob with OLS and I've facing some challenges.
OLS is currently hosted on an EC2, also Wordpress has been installed.
I would like to implement AWS Elastic Load Balancer in front of the webserver.

I've checked /usr/local/lsws/conf/httpd_config.conf to see which virtualHosts there are and where the vhRoot is.
path: /home/<placeholder>/wordpress/<placeholder>

In /home/<placeholder>/wordpress/<placeholder>/.htaccess, i've changed rewrite part:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} !^/healthcheck\.php$
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

In /home/<placeholder>/wordpress/<placeholder>, I've created a simple healthcheck.php.
When I do a `curl localhost/healthcheck.php`, I receive a 404 not found.

Does someone have tips or ideas?

 

[Cold-Egg]

If you want to use AWS Elastic Load Balancer, you might also want to find a way to sync / share the cache folder between your servers in order to serve the valid cached file.

If no rewrite, can you visit the healthcheck.php directly?

 

[jchunlai]

If you want to use AWS Elastic Load Balancer, you might also want to find a way to sync / share the cache folder between your servers in order to serve the valid cached file.

If no rewrite, can you visit the healthcheck.php directly?

Removing `RewriteCond %{REQUEST_URI} !^/healthcheck\.php$` ?

 

[Cold-Egg]

Yes, will you still get a 404?

 

[jchunlai]

Yes, will you still get a 404?

Still receive 404 not found. When i browse to the website <placeholder>.com/healthcheck.php I do receive an OK (which is the response of my simple healthcheck)

 

[Cold-Egg]

That's odd, whether it matches the rewrite rule or not, it should not cause a 404 issue. Just want to clarify with you again.
"Still receive 404 not found. " means curl returns a 404, or from the browser?
"When I browse to the website <placeholder>.com/healthcheck.php I do receive an OK " Which means, browsing it on your browser works?

 

[jchunlai]

That's odd, whether it matches the rewrite rule or not, it should not cause a 404 issue. Just want to clarify with you again.
"Still receive 404 not found. " means curl returns a 404, or from the browser?
"When I browse to the website <placeholder>.com/healthcheck.php I do receive an OK " Which means, browsing it on your browser works?

Correct, when I login to the machine and do a ` curl localhost/healthcheck.php `, i receive a 404 not found.
When i use a web browser and i browse to ` <placeholder>.com/healthcheck.php `, I receive an a-OK

 

[Cold-Egg]

Hi,
This is my guess, maybe the localhost or 127.0.0.1 is not included in your OLS listener or virtual host domain. Please try to curl again with the domain name. Let us know if it works.

 

[jchunlai]

Hi,
This is my guess, maybe the localhost or 127.0.0.1 is not included in your OLS listener or virtual host domain. Please try to curl again with the domain name. Let us know if it works.

On the webserver it self, when i ` curl <placeholder>.com/healthcheck.php ` i receive an a-OK. So that seems to work and your theory is correct.

 

[jchunlai]

I think this is also the reason why my AWS ELB/Target Group healthcheck isn't working... because also there it says '404'.

 

[Cold-Egg]

Good, if curl localhost is not changeable, then you just need to add it to the domain list of the listener.

 

[jchunlai]

Good, if curl localhost is not changeable, then you just need to add it to the domain list of the listener.

Are there some documentation how I can do this? Or maybe some tips from you?

 

[Cold-Egg]

Please check https://docs.openlitespeed.org/configuration#map-virtual-hosts, you can try to add `*, your_domain` to that virtual hosts Domains. And see if it works.

 

[jchunlai]

[root@rmasearchfirm ~]# curl localhost/healthcheck.php
OK:

Looks like this is routing correctly on the machine!

 

[jchunlai]

Please check https://docs.openlitespeed.org/configuration#map-virtual-hosts, you can try to add `*, your_domain` to that virtual hosts Domains. And see if it works.

I guess I would say... it's alive

 

[jchunlai]

Any idea how it works for ALB + OLS portal? OLS Portal is hosted on 5458.
Using ` telnet <domainname>.com 5848 ` does seems to work. Only on the webbrowser, it's probably not redirecting correctly.

 

[jchunlai]

 

[Cold-Egg]

Webadmin runs with HTTPS, did you set the target to e.g. HTTPS:5484 ?

 

[jchunlai]

Webadmin runs with HTTPS, did you set the target to e.g. HTTPS:5484 ?

I've added an AWS listener for HTTPS:5848. But my guess is that it doesn't route correctly to 5848

 

[jchunlai]

OLS port is 5848 btw, my apologises