Refactoring. Use YAML instead environment

entrypoint.py

@@ -0,0 +1,106 @@
+import yaml
+
+
+def defaults(custom):
+    result = """
+defaults
+    log global
+
+    timeout connect    3s
+    timeout client    10s
+    timeout server    10m
+"""
+    if custom:
+        result += """
+    errorfile 400 /etc/haproxy/errors-custom/400.http
+    errorfile 403 /etc/haproxy/errors-custom/403.http
+    errorfile 408 /etc/haproxy/errors-custom/408.http
+    errorfile 500 /etc/haproxy/errors-custom/500.http
+    errorfile 502 /etc/haproxy/errors-custom/502.http
+    errorfile 503 /etc/haproxy/errors-custom/503.http
+    errorfile 504 /etc/haproxy/errors-custom/504.http
+"""
+    result += """
+global
+    log /dev/log local0
+    maxconn 2000
+"""
+    return result
+
+
+def stats(map):
+    return """
+frontend stats
+    bind *:{2}
+    mode http
+    stats enable
+    stats hide-version
+    stats realm Haproxy\ Statistics
+    stats uri /
+    stats auth {0}:{1}
+#    acl is_proxystats hdr_dom(host) -i some.host.com
+#    default_backend srv_stats
+#    use_backend srv_stats if is_proxystats
+    default_backend srv_stats
+
+backend srv_stats
+    mode http
+    server Local 127.0.0.1:{2}
+""".format(map["username"], map["password"], map["port"] if "port" in map else 1936)
+
+
+def easymapping(o):
+    port = o["port"]
+    hosts = o["hosts"] if "hosts" in o else dict()
+    redir = o["redirect"] if "redirect" in o else dict()
+
+    result = """
+frontend http_in
+    bind *:{0}
+    mode http
+    
+""".format(port)
+
+    for k in redir:
+        host = k.replace(".", "_")
+        result += "    acl is_redir_{0} hdr_dom(host) -i -m end {1}\n".format(host, k)
+        result += "    use_backend redir_{1}_{0} if is_redir_{0}\n\n".format(host, port)
+
+    for k in hosts:
+        host = k.replace(".", "_")
+        result += "    acl is_rule_{0} hdr_dom(host) -i -m end {1}\n".format(host, k)
+        result += "    use_backend srv_{1}_{0} if is_rule_{0}\n\n".format(host, port)
+
+    for k in redir:
+        host = k.replace(".", "_")
+        result += """
+backend redir_{1}_{0}
+    mode http
+    redirect location {2} code 302
+""".format(host, port, redir[k])
+
+    for k in hosts:
+        host = k.replace(".", "_")
+        result += """
+backend srv_{1}_{0}
+    balance roundrobin
+    mode http
+    option forwardfor
+    http-request set-header X-Forwarded-Port %[dst_port]""".format(host, port) + """
+    http-request add-header X-Forwarded-Proto https if { ssl_fc }""" + """
+    server srv {0} check weight 1
+""".format(hosts[k])
+
+    return result
+
+
+parsed = yaml.load("/etc/haproxy/haproxy.cfg")
+
+print(defaults(parsed["customerrors"] if "customerrors" in parsed else False))
+if "stats" in parsed:
+    print(stats(parsed["stats"]))
+if "easymapping" in parsed:
+    for k in parsed["easymapping"]:
+        print(easymapping(k))
+
+