MLE-20430/Support Configure HAProxy At Group Level (#100)

* remove unused code and add comments

* the non pathbased works for app server

* support for pathbased routing

* fix typo

* fix bugs for pathbased routing

* add TCP implementation

* fix null pointer issue

* fix nil pointer issue

* add HAProxyGroup

* Fix bug in TCP config have wrong number of backend servers

* Update pkg/k8sutil/haProxyHelper.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* update format

* fix bug pointed by Copilot

---------

Co-authored-by: Peng Zhou <peng.zhou@progress.com>
Co-authored-by: Romain Winieski <winieski@progress.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 4 people

api/v1/common_types.go

@@ -98,8 +98,7 @@ type HAProxy struct {
 	// +kubebuilder:default:=false
 	PathBasedRouting *bool               `json:"pathBasedRouting,omitempty"`
 	Service          *corev1.ServiceType `json:"service,omitempty"`
-	// +kubebuilder:default:={enabled: false}
-	TcpPorts Tcpports `json:"tcpPorts,omitempty"`
+	TcpPorts         *Tcpports           `json:"tcpPorts,omitempty"`
 	// +kubebuilder:default:={client: 600, connect: 600, server: 600}
 	Timeout Timeout `json:"timeout,omitempty"`
 	// +kubebuilder:default:={enabled: false, secretName: "", certFileName: ""}
@@ -112,6 +111,14 @@ type HAProxy struct {
 	Ingress      Ingress                     `json:"ingress,omitempty"`
 }
 
+// HAProxyGroup represents group-level HAProxy configuration that can override cluster settings
+type HAProxyGroup struct {
+	Enabled          bool         `json:"enabled,omitempty"`
+	AppServers       []AppServers `json:"appServers,omitempty"`
+	PathBasedRouting *bool        `json:"pathBasedRouting,omitempty"`
+	TcpPorts         *Tcpports    `json:"tcpPorts,omitempty"`
+}
+
 type AppServers struct {
 	Name       string `json:"name,omitempty"`
 	Type       string `json:"type,omitempty"`
@@ -138,9 +145,10 @@ type Tcpports struct {
 }
 
 type TcpPort struct {
-	Port int32  `json:"port,omitempty"`
-	Name string `json:"name,omitempty"`
-	Type string `json:"type,omitempty"`
+	Port       int32  `json:"port,omitempty"`
+	TargetPort int32  `json:"targetPort,omitempty"`
+	Name       string `json:"name,omitempty"`
+	Type       string `json:"type,omitempty"`
 }
 
 type Timeout struct {

api/v1/marklogiccluster_types.go

@@ -110,7 +110,7 @@ type MarklogicGroups struct {
 	PriorityClassName         string                            `json:"priorityClassName,omitempty"`
 	HugePages                 *HugePages                        `json:"hugePages,omitempty"`
 	LogCollection             *LogCollection                    `json:"logCollection,omitempty"`
-	HAProxy                   *HAProxy                          `json:"haproxy,omitempty"`
+	HAProxy                   *HAProxyGroup                     `json:"haproxy,omitempty"`
 	// +kubebuilder:default:=false
 	IsBootstrap                    bool                            `json:"isBootstrap,omitempty"`
 	Tls                            *Tls                            `json:"tls,omitempty"`