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home-stack-ansible/roles/haproxy/templates/haproxy.cfg

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INI

global
daemon
maxconn 1024
log 127.0.0.1 local0
stats timeout 30s
tune.ssl.default-dh-param 2048
defaults
log global
log /dev/log local0 notice
timeout connect 5s
timeout client 120s
timeout server 120s
timeout tunnel 1h
default-server init-addr last,none resolvers dns
resolvers dns
parse-resolv-conf
## FRONTENDS ##
# haproxy stuff
frontend http_management
bind *:8080
mode http
# redirects /status to haproxy monitor
monitor-uri /status
# redirects /stats to stats backend
acl prefixed-with-stats path_beg -i /stats
use_backend haproxy_stats if prefixed-with-stats
# redirects /metrics to metrics backend
acl prefixed-with-metrics path_beg -i /metrics
use_backend haproxy_metrics if prefixed-with-metrics
frontend http_in
bind *:80
mode http
# force https
redirect scheme https
# https frontend
frontend https_in
# backend is assumed to be http, perform ssl termination here
bind *:443 ssl crt /etc/letsencrypt/live/{{ letsencrypt.domains[0] }}/{{ letsencrypt.domains[0] }}.pem alpn h2,http/1.1
mode http
option httplog
# set HSTS
http-response set-header Strict-Transport-Security "max-age=15552000; includeSubDomains;"
# set X-Forward-For
option forwardfor
# set X-Forwarded-Proto
http-request set-header X-Forwarded-Proto https
default_backend default_backend
{% for http_route in https_routing %}
use_backend https_{{ http_route.frontend[0]|replace('.','_') }} if { hdr_end(host) -i {% for src in http_route.frontend %}{{ src }} {% endfor %}}{% if 'allowlist' in http_route %} { src {% for ip in http_route.allowlist %}{{ ip }} {% endfor %}}{% endif %}
{% endfor %}
## BACKENDS ##
# stat backend
backend haproxy_stats
mode http
stats uri /stats
stats enable
stats refresh 10s
stats auth admin:admin
# metric backend
backend haproxy_metrics
mode http
http-request use-service prometheus-exporter
backend default_backend
mode http
http-request deny deny_status 404
{% for http_route in https_routing %}
# backend for {{ ', '.join(http_route.frontend) }}
backend https_{{ http_route.frontend[0]|replace('.','_') }}
mode http
balance roundrobin
{% for dst in http_route.backend %}
server {{ dst.server }} {{ dst.server }}{% if ':' not in dst.server %}:443{% endif %} check {% if http_route.ssl|default(true) %}ssl verify none alpn h2,http/1.1{% endif %} {{ dst.extra_param|default('') }}
{% endfor %}
{% endfor %}
## TCP ##
{% for tcp_route in tcp_routing %}
frontend tcp_{{ tcp_route.frontend }}
bind *:{{ tcp_route.frontend }}
mode tcp
use_backend tcp_{{ tcp_route.frontend }}
backend tcp_{{ tcp_route.frontend }}
mode tcp
{% for dst in tcp_route.backend %}
server {{ dst.server }} {{ dst.server }} check {{ dst.extra_param|default('') }}
{% endfor %}
{% endfor %}