fix: nodes no longer beg to be kept alive

internal/config/defaults.go

@@ -9,9 +9,10 @@ var DefaultConfig = Config{
 	},
 	Configs: Configs{
 		Master: MasterConfig{
-			ObserverInterval: 120,
+			ObserverInterval: 20,
 			BackoffSeconds:   1,
 			BackoffCount:     4,
+			NodeTimeout:      120,
 		},
 	},
 }

internal/config/master.go

@@ -4,9 +4,9 @@ import "errors"
 
 type MasterConfig struct {
 	ObserverInterval int `toml:"observer_interval"`
-
-	BackoffSeconds int `toml:"backoff_seconds"`
-	BackoffCount   int `toml:"backoff_count"`
+	BackoffSeconds   int `toml:"backoff_seconds"`
+	BackoffCount     int `toml:"backoff_count"`
+	NodeTimeout      int `toml:"node_timeout"`
 
 	baseRoleConfig
 }
@@ -24,6 +24,10 @@ func (c MasterConfig) Validate() error {
 		return errors.New("invalid backoff_count")
 	}
 
+	if c.NodeTimeout < 1 {
+		return errors.New("invalid node_timeout")
+	}
+
 	return nil
 }
 
@@ -43,4 +47,8 @@ func (c *MasterConfig) Merge(other MasterConfig) {
 	if other.BackoffCount != 0 {
 		c.BackoffCount = other.BackoffCount
 	}
+
+	if other.NodeTimeout != 0 {
+		c.NodeTimeout = other.NodeTimeout
+	}
 }

internal/config/node.go

@@ -49,7 +49,7 @@ func (c NodeConfig) Validate() error {
 		return errors.New("missing hostname")
 	}
 
-	if c.KeepaliveInterval < 1 && c.KeepaliveInterval != -1 {
+	if c.KeepaliveInterval < 1 {
 		return errors.New("invalid keepalive_interval")
 	}