MINOR: support keyword tune.notsent-lowat.server in global section

Signed-off-by: Vincent Gramer <vgramer@haproxy.com>

Author: vgramer

config-parser/section-parsers.go

@@ -327,6 +327,7 @@ func (p *configParser) getGlobalParser() *Parsers { //nolint: maintidx
 	addParser(parser, &sequence, &simple.Number{Name: "tune.maxrewrite"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.memory.hot-size"})
 	addParser(parser, &sequence, &simple.Size{Name: "tune.notsent-lowat.client"})
+	addParser(parser, &sequence, &simple.Size{Name: "tune.notsent-lowat.server"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.pattern.cache-size"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.peers.max-updates-at-once"})
 	addParser(parser, &sequence, &simple.Size{Name: "tune.pipesize"})

config-parser/tests/configs/haproxy.cfg.go

@@ -57,6 +57,7 @@ global
   tune.h2.zero-copy-fwd-send on
   tune.lua.maxmem 65536
   tune.notsent-lowat.client 32k
+  tune.notsent-lowat.server 16k
   tune.pt.zero-copy-forwarding on
   tune.renice.runtime -10
   tune.renice.startup 8

configuration/global.go

@@ -1656,6 +1656,15 @@ func parseTuneOptions(p parser.Parser) (*models.TuneOptions, error) { //nolint:g
 		options.NotsentLowatClient = intPOption
 	}
 
+	intPOption, err = parseSizeOption(p, "tune.notsent-lowat.server")
+	if err != nil {
+		return nil, err
+	}
+	if intPOption != nil {
+		isEmpty = false
+		options.NotsentLowatServer = intPOption
+	}
+
 	strOption, err = parseOnOffOption(p, "tune.pt.zero-copy-forwarding")
 	if err != nil {
 		return nil, err
@@ -3866,6 +3875,9 @@ func serializeTuneOptions(p parser.Parser, options *models.TuneOptions, configOp
 	if err := serializeSizeOption(p, "tune.notsent-lowat.client", options.NotsentLowatClient); err != nil {
 		return err
 	}
+	if err := serializeSizeOption(p, "tune.notsent-lowat.server", options.NotsentLowatServer); err != nil {
+		return err
+	}
 	if err := serializeOnOffOption(p, "tune.pt.zero-copy-forwarding", options.PtZeroCopyForwarding); err != nil {
 		return err
 	}

models/tune_options.go

@@ -1620,6 +1620,11 @@ definitions:
         x-display-name: Client Not Sent Low Watermark
         x-nullable: true
         x-size: true
+      notsent_lowat_server:
+        type: integer
+        x-display-name: Server Not Sent Low Watermark
+        x-nullable: true
+        x-size: true
       pattern_cache_size:
         type: integer
         x-display-name: Pattern Lookup Cache Size

models/tune_options_compare.go

@@ -599,6 +599,11 @@ tune_options:
       x-display-name: Client Not Sent Low Watermark
       x-nullable: true
       x-size: true
+    notsent_lowat_server:
+      type: integer
+      x-display-name: Server Not Sent Low Watermark
+      x-nullable: true
+      x-size: true
     pattern_cache_size:
       type: integer
       x-display-name: Pattern Lookup Cache Size

models/tune_options_compare_test.go

@@ -247,6 +247,7 @@ global
   tune.h2.fe.rxbuf 8k
   tune.lua.burst-timeout 205
   tune.notsent-lowat.client 32k
+  tune.notsent-lowat.server 16k
   ssl-default-bind-sigalgs RSA+SHA256
   ssl-default-bind-client-sigalgs ECDSA+SHA256:RSA+SHA256
   ssl-default-server-sigalgs RSA+SHA256

specification/build/haproxy_spec.yaml

@@ -312,6 +312,7 @@
             "maxrewrite": 30,
             "memory_hot_size": 56,
             "notsent_lowat_client": 32768,
+            "notsent_lowat_server": 16384,
             "pattern_cache_size": 31,
             "peers_max_updates_at_once": 200,
             "pool_high_fd_ratio": 33,