2015-10-23 16:03:11 +02:00
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#
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# The user of this role will need to write a haproxy.cfg template and install it with a dedicated task. Something like
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- name: Configure haproxy
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template: src=haproxy.cfg.j2 dest=/etc/haproxy/haproxy.cfg owner=root group=haproxy mode=0440
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notify: Reload haproxy
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tags: [ 'haproxy', 'haproxy_conf' ]
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#
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# Very complex setup that involves varnish. Taken here:
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# https://alohalb.wordpress.com/2012/08/25/haproxy-varnish-and-the-single-hostname-website/
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# For a ssl setup, check here:
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# http://seanmcgary.com/posts/using-sslhttps-with-haproxy
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# https://alohalb.wordpress.com/haproxy/haproxy-and-ssl/
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# https://alohalb.wordpress.com/2013/01/21/mitigating-the-ssl-beast-attack-using-the-aloha-load-balancer-haproxy/
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# http://blog.haproxy.com/2015/05/06/haproxys-load-balancing-algorithm-for-static-content-delivery-with-varnish/
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# http://blog.haproxy.com/2012/09/10/how-to-get-ssl-with-haproxy-getting-rid-of-stunnel-stud-nginx-or-pound/
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# https://serversforhackers.com/using-ssl-certificates-with-haproxy
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#
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# Session management workarounds:
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# http://blog.haproxy.com/2012/03/29/load-balancing-affinity-persistence-sticky-sessions-what-you-need-to-know/
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# http://serverfault.com/questions/439445/haproxy-my-sessions-are-sort-of-sticky
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#
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# Hints to protect from DDOS or too many legitimate requests
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# http://www.loadbalancer.org/de/blog/black-friday-black-out-protection-with-haproxy
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2016-04-14 19:31:02 +02:00
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#
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When letsencrypt is enabled, the haproxy configurazion file needs to
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contain not only the https configuration, but also something like:
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frontend http
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bind 80
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acl letsencrypt-request path_beg -i /.well-known/acme-challenge/
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use_backend letsencrypt if letsencrypt-request
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backend letsencrypt
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mode http
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server letsencrypt 127.0.0.1:9999
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Where 9999 is the port where the letsencrypt standalone client will listen to.
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