add spec description

Author: walnuts1018

README.md

@@ -55,6 +55,84 @@ spec:
       ingressClassName: "nginx"
 ```
 
+## Spec
+
+```go
+type CodeServerSpec struct {
+	// Specifies the storage size that will be used for code server
+	// +kubebuilder:validation:Pattern="^([+-]?[0-9.]+)([eEinumkKMGTP]*[-+]?[0-9]*)$"
+	// +kubebuilder:default="1Gi"
+	StorageSize string `json:"storageSize,omitempty"`
+
+	// Specifies the storage class name for persistent volume claim
+	StorageClassName string `json:"storageClassName,omitempty"`
+
+	// Specifies the additional annotations for persistent volume claim
+	StorageAnnotations map[string]string `json:"storageAnnotations,omitempty"`
+
+	// VolumeName specifies the volume name for persistent volume claim
+	VolumeName string `json:"volumeName,omitempty"`
+
+	// Specifies the resource requirements for code server pod.
+	Resources corev1.ResourceRequirements `json:"resources,omitempty"`
+
+	// Specifies the period before controller suspend the resources (delete all resources except data).
+	SuspendAfterSeconds *int64 `json:"suspendAfterSeconds,omitempty"`
+
+	// Specifies the domain for code server
+	Domain string `json:"domain,omitempty"`
+
+	// Specifies the envs
+	Envs []corev1.EnvVar `json:"envs,omitempty"`
+
+	// Specifies the image used to running code server
+	// +kubebuilder:default="ghcr.io/coder/code-server:latest"
+	Image string `json:"image,omitempty"`
+
+	// Specifies the init plugins that will be running to finish before code server running.
+	InitPlugins map[string]map[string]string `json:"initPlugins,omitempty"`
+
+	// Specifies the node selector for scheduling.
+	NodeSelector map[string]string `json:"nodeSelector,omitempty"`
+
+	// Specifies the terminal container port for connection, defaults in 19200.
+	// +kubebuilder:default=19200
+	ContainerPort int32 `json:"containerPort,omitempty"`
+
+	// ImagePullSecrets is an optional list of references to secrets in the same namespace to use for pulling any of the images used by this PodSpec.
+	ImagePullSecrets []corev1.LocalObjectReference `json:"imagePullSecrets,omitempty"`
+
+	IngressClassName string `json:"ingressClassName,omitempty"`
+
+	// PublicProxyPorts specifies the public proxy ports for code server
+	PublicProxyPorts []int32 `json:"publicProxyPorts,omitempty"`
+
+	//InitCommand specifies the init commands that will be running to finish before code server running.
+	InitCommand string `json:"initCommand,omitempty"`
+}
+```
+
+## InitPlugins
+
+```go
+type gitPlugin struct {
+	Repourl    string `required:"true" json:"repourl"`
+	Branch     string `json:"branch"`
+}
+```
+
+```go
+type copyDefaultConfigPlugin struct {
+	Image      string `required:"true" json:"image"`
+}
+```
+
+```go
+type copyHomePlugin struct {
+    Image      string `required:"true" json:"image"`
+}
+```
+
 ## Development
 
 ### Prerequisites