stack/haproxy: Introduce

A stack to share common configuration aspects.

stack/haproxy/buildout.hash.cfg

+# THIS IS NOT A BUILDOUT FILE, despite purposedly using a compatible syntax.
+# The only allowed lines here are (regexes):
+# - "^#" comments, copied verbatim
+# - "^[" section beginings, copied verbatim
+# - lines containing an "=" sign which must fit in the following categorie.
+#   - "^\s*filename\s*=\s*path\s*$" where "path" is relative to this file
+#     Copied verbatim.
+#   - "^\s*hashtype\s*=.*" where "hashtype" is one of the values supported
+#     by the re-generation script.
+#     Re-generated.
+# - other lines are copied verbatim
+# Substitution (${...:...}), extension ([buildout] extends = ...) and
+# section inheritance (< = ...) are NOT supported (but you should really
+# not need these here).
+[stack-haproxy-default-backend-config]
+filename = default-backend.cfg.in
+md5sum = dd336cb9ea7dcee94127a994bbe0a2e8

stack/haproxy/default-backend.cfg

+[buildout]
+extends =
+  buildout.hash.cfg
+  ../../component/haproxy/buildout.cfg
+
+[stack-haproxy-default-backend-config]
+recipe = slapos.recipe.build:download
+url = ${:_profile_base_location_}/${:filename}

stack/haproxy/default-backend.cfg.in

+global
+  maxconn 4096
+  master-worker
+  pidfile {{ pidfile }}
+  log stdout format raw daemon
+
+defaults
+  log global
+  option httplog
+  mode http
+  retries 1
+  option redispatch
+  maxconn 2000
+  balance roundrobin
+  timeout connect 10s
+  timeout queue 60s
+  timeout server 305s
+  timeout client 305s
+
+  compression algo gzip
+  compression type application/font-woff application/font-woff2 application/hal+json application/javascript application/json application/rss+xml application/wasm application/x-font-opentype application/x-font-ttf application/x-javascript application/xml image/svg+xml text/cache-manifest text/css text/html text/javascript text/plain text/xml
+
+{{ content }}
+{# BLANKLINE #}