Background: We have a series of interconnected applications SSL and all that we need to test putting a load balancer in front of. We're looking to publicly expose '443' to the end-users but have HAProxy proxy/redirect to the required internally exposed tcp-listeners. We're testing this implementation with haproxy and thought it would be a bit easier than either it is or we're making it to be.
https://example.com/app1 -> backend of 6 different hosts (or the
internal fqdn (not sure which would be correct)) on 30001
https://example.com/app2 -> backend of 6 different hosts (or the
internal fqdn (not sure which would be correct))on 8443
...
We've tried a number of different frontend/backend configs but can't seem to make it work as we intend. If anyone can tell me what I'm doing wrong, I'd appreciate it. Also we do not want SSL to terminate on the HAproxy which is why we aren't providing certs in the bind statement.
test1:
frontend test
bind *:443
acl path_spgen path_beg -i /app1
use_backend be_spgen if path_spgen
backend be_spgen
server host-01 x.x.x.x:30001
test2:
frontend test
bind *:443
acl path_spgen path_beg -i /app1
http-request redirect scheme https code 301 if !{ ssl_fc }
http-request redirect code 301 location https://example:30001 if path_spgen
backend be_spgen
server host-01 x.x.x.x:30001
any help would be greatly appreciated.
Related
I have a collection of hosts that currently use just hostnames for reference, I'm switching over to using haproxy as an https proxy and would like to do a rewrite or redirect from http://server1/ to https://server1.internal.mydomain.com/.
# do a redirect for insecure connections
http-request redirect scheme https code 301 if !{ ssl_fc }
I have the HTTPS redirect/upgrade working as expected it's getting the rewrite/redirect configured properly that I'm hung up on, and I'm not really sure on the right verbiage to use when asking the question to get a relevant answer.
defaults
mode http
timeout client 10s
timeout connect 5s
timeout server 10s
timeout http-request 10s
frontend mydomain_frontend
# Listen for both http and https requests
bind *:80
bind *:443 ssl crt /etc/ssl/certs/Wildcard_mydomain_web_server.pem
# Setup conditional ACLs for hosts
acl server1_hosts hdr_beg(host) -i server1. server1 server1-2. server1-2
acl server2_hosts hdr_beg(host) -i server2. server2 server2-2. server2-2
# Setup Conditional ACLs for redirecting short/host names to FQDNs
acl is_internal hdr_sub(host) -i internal.mydomain.com
# I think the ACL is right, I'm just not sure how I would do the redirect, Is there string substitution?
http_request redirect location https://ORIGINALHOST.internal.mydomain.com if !is_internal
# do a redirect for insecure connections
http-request redirect scheme https code 301 if !{ ssl_fc }
use_backend server1_bend if server1_hosts
use_backend server2_bend if server2_hosts
default_backend server1_bend
# Setup DNS resolution
resolvers default
nameserver ns1 10.10.10.1:53
nameserver ns2 10.10.10.15:53
backend server1_bend
mode http
option forwardfor if-none
# server site 11.11.11.11:80 check resolvers default
server site server1.internal.mydomain.com:80 check resolvers default
backend server2_bend
mode http
option forwardfor if-none
# server site 10.10.10.10:80 check resolvers default
server site server2.internal.mydomain.com:80 check resolvers default
** EDIT **
I added an acl and a partial redirect statement to my example configuration, I think it is the beginning of what I am looking for but I don't know if it will work without string substitution in the redirect.
Updating the http-request line to use hdr(host) and pathq solved the issue for me.
http-request redirect location https://%[hdr(host)].internal.mydomain.com%[pathq] if !is_internal
hdr(host) - is the host from the URI minus the path and queries.
pathq - is the path including any queries. if we wanted just the path we could use just path.
The %[] pattern is important for triggering the substitution.
I have a condition where I need to pass whatever path is given in the frontend url to a backend redirect statement. E.g. Frontend https://example.com/abc/xyz to backend http://server-address:port/abc/xyz. I am using http redirect in the backend as of now. But now it has been requested to pass any path along with the frontend URL, to be appended to backend as well. I cannot use redirect on frontend as I need to use port 443 which is being used by other service. So I am use acl_path to point to a different backend, so I need to achieve this using backend itself. My frontend config is below-
frontend a
bind 10.10.10.10:443 ssl crt /etc/pki/org/key/somekey.key force-tlsv12 ciphers SOME-CIPHER
mode http
acl a_dev_app hdr_dom(host) -m beg a.dev.app.
acl b_dev_app hdr_dom(host) -m beg b.dev.app.
option http-server-close
use_backend a if a_dev_app
use_backend b if b_dev_app
Backend config-
backend b
balance roundrobin
cookie a-web-backend insert indirect nocache
http-request redirect location http://server-url:8081/b
mode http
option httpchk /b
server a-web-d01 http://server-url:8081 check maxconn 150 cookie a-web-d01
I am trying to configure the HAproxy to make it redirect the http traffic to https, but Chrome failed with "ERR_SSL_PROTOCOL_ERROR". However, if I used https directly it will work.
For example:
If I typed https://:5443, it will display the page of backend servers.
If I typed http://:5006, it should be redirected but just failed with the error mentioned above.
Here is my config:
frontend simple_webapp
mode http
bind *:5006
bind *:5443 ssl crt /root/Downloads/simple_webapp_all.pem
http-request redirect scheme https unless { ssl_fc }
default_backend simple_webapp
backend simple_webapp
balance roundrobin
server centos8-1 <server ip1>:5006 check
server centos8-2 <server ip2>:5006 check
Please correct me if there is any misconfiguration.
You probably expected that you changed port with scheme, but you haven't. Your request to http://foo:5006/ gets redirected to https://foo:5006, which doesn't support SSL. If you omit port in URL then browsers and web clients are smart enough to use port 80 for HTTP and 443 for HTTPS. That's why it works for default ports.
So try to change your redirect to something like this:
http-request redirect prefix https://your_domain_as_explicit_string:5443 unless { ssl_fc }
You can experiment with headers, like
http-request redirect prefix https://%[hdr(host),regsub(:5006,:5443)] unless { ssl_fc }
hdr(host) includes in this case :5006, so that's changed with regsub
Once I changed the port from 5006 to others, it works fine.
No clue what happened on this port.
I'm trying to setup haproxy acl, and it gives me 503: Service unavailable error, even redirect by port works fine. What am I doing wrong?
Appreciate any help.
This doesn't work by x.x.x.x/havana :
frontend https
bind *:80
mode http
option httpclose
acl otter-path path -i /havana/
use_backend otter-server if otter-path
This shows backend fine by x.x.x.x:82 :
frontend otter-server
bind *:82
option forwardfor
default_backend otter-server
Backend configuration:
backend otter-server
server otter2 192.168.0.15:8004
acl otter-path path -i /havana/
remove the last "/" i.e:
acl otter-path path -i /havana
your trying to hitx.x.x.x/havana but matching x.x.x.x/havana/
the problem was - it redirects not to backend, but to backend/havana, which doesn't exist.
Solution is to remove subpath after redirect, so it points exact to backend root
backend annotrack-mouse
balance roundrobin
http-request set-uri %[url,regsub(^/havana/mouse,/,)] if { path_beg /ha$
server annotrack-mouse 192.168.0.10:3000
option httpchk
as mentioned in the title, i've set an Haproxy loadbalancer with a basic configuration, what i'd like to do is to always redirect request to the first server if the hostname matches x.domaine.com, but keep the balancing for domaine.com, is it possible with Haproxy, and if so how can i do it.
her's my configuration
listen webcluster *:80
mode http
balance roundrobin
option httpchk HEAD / HTTP/1.0
option forwardfor
cookie LSW_WEB insert
option httpclose
server bigSRV 192.168.1.10:8082 cookie LSW_WEB01 check
server miniSRV 192.168.2.10:8082 cookie LSW_WEB01 check
thanks in advence
after hours of digging i finally got it to work, so i'm going to answer my own question in case if samone have the same issue
generally i created a frontend that listen on port:80 and in which i defined 2 ACLs that uses the "if" statement to check the http header and then redirect to one of the backends defined, if no request matches the conditions, we redirect to default backend, here's how it's done (on haproxy.cfg) :
frontend http-proxy
bind *:80
acl is_www hdr(host) -i www.domain.com
acl is_x hdr(host) -i x.domain.com
use_backend clusterWWW if is_www
use_backend clusterX if is_x
default_backend clusterWWW
backend clusterWWW
server bigSRV 192.168.1.10:8082 cookie LSW_WEB01 check
server miniSRV 192.168.2.10:8082 cookie LSW_WEB01 check
backend clusterX
server bigSRV 192.168.1.10:8082 cookie LSW_WEB01 check