[#39] ir: Do not store config keys in httpComponent

Pprof will have specific options, it seems wrong to have them in a
generic struct.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

cmd/frostfs-ir/httpcomponent.go

@@ -11,22 +11,25 @@ import (
 )
 
 type httpComponent struct {
-	srv                *httputil.Server
-	address            string
-	addressKey         string
-	name               string
-	handler            http.Handler
-	shutdownDur        time.Duration
-	shutdownTimeoutKey string
-	enabled            bool
-	enabledKey         string
+	srv         *httputil.Server
+	address     string
+	name        string
+	handler     http.Handler
+	shutdownDur time.Duration
+	enabled     bool
 }
 
+const (
+	enabledKeyPostfix         = ".enabled"
+	addressKeyPostfix         = ".address"
+	shutdownTimeoutKeyPostfix = ".shutdown_timeout"
+)
+
 func (c *httpComponent) init() {
 	log.Info(fmt.Sprintf("init %s", c.name))
-	c.enabled = cfg.GetBool(c.enabledKey)
-	c.address = cfg.GetString(c.addressKey)
-	c.shutdownDur = cfg.GetDuration(c.shutdownTimeoutKey)
+	c.enabled = cfg.GetBool(c.name + enabledKeyPostfix)
+	c.address = cfg.GetString(c.name + addressKeyPostfix)
+	c.shutdownDur = cfg.GetDuration(c.name + shutdownTimeoutKeyPostfix)
 
 	if c.enabled {
 		c.srv = httputil.New(
@@ -63,9 +66,9 @@ func (c *httpComponent) shutdown() error {
 
 func (c *httpComponent) reload() {
 	log.Info(fmt.Sprintf("reload %s", c.name))
-	enabled := cfg.GetBool(c.enabledKey)
-	address := cfg.GetString(c.addressKey)
-	dur := cfg.GetDuration(c.shutdownTimeoutKey)
+	enabled := cfg.GetBool(c.name + enabledKeyPostfix)
+	address := cfg.GetString(c.name + addressKeyPostfix)
+	dur := cfg.GetDuration(c.name + shutdownTimeoutKeyPostfix)
 	if enabled != c.enabled || enabled && (address != c.address || dur != c.shutdownDur) {
 		log.Info(fmt.Sprintf("%s config updated", c.name))
 		if err := c.shutdown(); err != nil {