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132 lines
4.8 KiB
INI
132 lines
4.8 KiB
INI
# This configuration creates a classical reverse-proxy and load balancer for
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# public services. It presents ports 80 and 443 (with 80 redirecting to 443),
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# enables caching up to one hour, and load-balances the service on a farm of
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# 4 servers on private IP addresses which are checked using HTTP checks and
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# by maintaining stickiness via session cookies. It offloads TLS processing
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# and enables HTTP compression. It uses HAProxy 2.4.
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# The global section deals with process-wide settings (security, resource usage)
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global
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# all file names are relative to the directory containing this config
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# file by default
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default-path config
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# refuse to start if any warning is emitted at boot (keep configs clean)
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zero-warning
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# Security hardening: isolate and drop privileges
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chroot /var/empty
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user haproxy
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group haproxy
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# daemonize
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daemon
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pidfile /var/run/haproxy-svc1.pid
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# do not keep old processes longer than that after a reload
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hard-stop-after 5m
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# The command-line-interface (CLI) used by the admin, by provisionning
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# tools, and to transfer sockets during reloads
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stats socket /var/run/haproxy-svc1.sock level admin mode 600 user haproxy expose-fd listeners
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stats timeout 1h
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# send logs to stderr for logging via the service manager
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log stderr local0 info
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# intermediate security for SSL, from https://ssl-config.mozilla.org/
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ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
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ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
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ssl-default-bind-options prefer-client-ciphers no-sslv3 no-tlsv10 no-tlsv11 no-tls-tickets
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# default settings common to all HTTP proxies below
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defaults http
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mode http
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option httplog
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log global
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timeout client 1m
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timeout server 1m
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timeout connect 10s
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timeout http-keep-alive 2m
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timeout queue 15s
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timeout tunnel 4h # for websocket
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# provide a stats page on port 8181
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frontend stats
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bind :8181
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# provide advanced stats (ssl, h2, ...)
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stats uri /
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stats show-modules
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# some users may want to protect the access to their stats and/or to
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# enable admin mode on the page from local networks
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# stats auth admin:mystats
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# stats admin if { src 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 127.0.0.0/8 }
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# First incoming public service. Supports HTTP/1.x, HTTP/2, and HTTP/3 over
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# QUIC when built in, uses HSTS, redirects clear to TLS. Uses a dedicated host
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# name for the stats page.
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frontend pub1
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bind :80 name clear
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bind :443 name secure ssl crt pub1.pem
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option socket-stats # provide per-bind line stats
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.if feature(QUIC)
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# indicate QUIC support for 25 hours
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bind quic4@:443 name quic ssl crt pub1.pem allow-0rtt
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http-response add-header alt-svc 'h3=":443"; ma=90000'
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.endif
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# set HSTS for one year after all responses
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http-after-response set-header Strict-Transport-Security "max-age=31536000"
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http-request redirect scheme https code 301 if !{ ssl_fc }
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# silently ignore connect probes and pre-connect without request
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option http-ignore-probes
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# pass client's IP address to the server and prevent against attempts
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# to inject bad contents
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http-request del-header x-forwarded-for
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option forwardfor
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# enable HTTP compression of text contents
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compression algo deflate gzip
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compression type text/ application/javascript application/xhtml+xml image/x-icon
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# enable HTTP caching of any cacheable content
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http-request cache-use cache
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http-response cache-store cache
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default_backend app1
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# The cache instance used by the frontend (200MB, 10MB max object, 1 hour max)
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# May be consulted using "show cache" on the CLI socket
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cache cache
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total-max-size 200 # RAM cache size in megabytes
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max-object-size 10485760 # max cacheable object size in bytes
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max-age 3600 # max cache duration in seconds
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process-vary on # handle the Vary header (otherwise don't cache)
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# First application
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backend app1
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# Algorithm:
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# - roundrobin is usually better for short requests,
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# - leastconn is better for mixed slow ones, and long transfers,
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# - random is generally good when using multiple load balancers
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balance random
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# abort if the client clicks on stop.
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option abortonclose
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# insert a session cookie for user stickiness
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cookie app1 insert indirect nocache
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# check the servers' health using HTTP requests
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option httpchk
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http-check send meth GET uri / ver HTTP/1.1 hdr host svc1.example.com
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# do not overload the servers (100 concurrent conns max each)
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server srv1 192.0.2.1:80 cookie s1 maxconn 100 check inter 1s
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server srv2 192.0.2.2:80 cookie s2 maxconn 100 check inter 1s
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server srv3 192.0.2.3:80 cookie s3 maxconn 100 check inter 1s
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server srv4 192.0.2.4:80 cookie s4 maxconn 100 check inter 1s
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