81 lines
2 KiB
Nix
81 lines
2 KiB
Nix
{ stdenv
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, pkgs
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, lib
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}:
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{ serviceName
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, servers ? []
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, httpcheck ? null
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, balance ? null
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, phpFastcgi ? false
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, phpDocroot ? null
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, phpIndex ? "index.php"
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, extraUseBackendConditions ? {}
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, extraFrontendOptions ? []
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, extraBackendOptions ? []
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}:
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with lib;
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with lib.lists;
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with lib.attrsets;
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let
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indent = map (x: " " + x);
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mkServer = i: s:
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let
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proto = optional phpFastcgi "proto fcgi";
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in
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concatStringsSep " " (
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[
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"server ${serviceName}${toString i} ${s.address}"
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]
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++ proto
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++ (optional (hasAttr "check" s && s.check != null) (
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concatStrings (["check"] ++ (map (k: if !hasAttr k s.check then "" else " ${k} ${getAttr k s.check}") ["inter" "downinter" "fall" "rise"]))
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))
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);
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serverslines = imap1 mkServer servers;
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backend =
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(
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concatStringsSep "\n" (
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[
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"backend ${serviceName}"
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]
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++ indent (
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[
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"mode http"
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"option forwardfor"
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]
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++ extraBackendOptions
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++ optional (balance != null) "balance ${balance}"
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++ optional (httpcheck != null) "option httpchk ${httpcheck}"
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++ optional phpFastcgi "use-fcgi-app ${serviceName}-php-fpm"
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++ serverslines
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)
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++ [""]) # final newline
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) +
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(if !phpFastcgi then "" else ''
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fcgi-app ${serviceName}-php-fpm
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log-stderr global
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docroot ${phpDocroot}
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index ${phpIndex}
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path-info ^(/.+\.php)(/.*)?$
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'');
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extraAclsCondition = concatStrings (mapAttrsToList (k: v: "\nacl acl_${serviceName}_${k} ${v}") extraUseBackendConditions);
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extraAclsOr = concatStrings (mapAttrsToList (k: v: " OR acl_${serviceName}_${k}") extraUseBackendConditions);
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in
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{
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frontend = ''
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acl acl_${serviceName} hdr_beg(host) ${serviceName}.${extraAclsCondition}
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''
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+ concatMapStrings (x: x + "\n") extraFrontendOptions
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+ ''
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use_backend ${serviceName} if acl_${serviceName}${extraAclsOr}
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'';
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inherit backend;
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}
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