Add omitempty's to MountEntry and MountConfig (#7154)

Co-authored-by: Jim Kalafut <jkalafut@hashicorp.com>
Co-authored-by: Vishal Nayak <vishalnayak@users.noreply.github.com>

vault/mount.go

@@ -220,7 +220,7 @@ type MountEntry struct {
 	Options               map[string]string `json:"options"`                 // Backend options
 	Local                 bool              `json:"local"`                   // Local mounts are not replicated or affected by replication
 	SealWrap              bool              `json:"seal_wrap"`               // Whether to wrap CSPs
-	ExternalEntropyAccess bool              `json:"external_entropy_access"` // Whether to allow external entropy source access
+	ExternalEntropyAccess bool              `json:"external_entropy_access,omitempty"` // Whether to allow external entropy source access
 	Tainted               bool              `json:"tainted,omitempty"`       // Set as a Write-Ahead flag for unmount/remount
 	NamespaceID           string            `json:"namespace_id"`
 
@@ -236,15 +236,15 @@ type MountEntry struct {
 
 // MountConfig is used to hold settable options
 type MountConfig struct {
-	DefaultLeaseTTL           time.Duration         `json:"default_lease_ttl" structs:"default_lease_ttl" mapstructure:"default_lease_ttl"` // Override for global default
-	MaxLeaseTTL               time.Duration         `json:"max_lease_ttl" structs:"max_lease_ttl" mapstructure:"max_lease_ttl"`             // Override for global default
-	ForceNoCache              bool                  `json:"force_no_cache" structs:"force_no_cache" mapstructure:"force_no_cache"`          // Override for global default
+	DefaultLeaseTTL           time.Duration         `json:"default_lease_ttl,omitempty" structs:"default_lease_ttl" mapstructure:"default_lease_ttl"` // Override for global default
+	MaxLeaseTTL               time.Duration         `json:"max_lease_ttl,omitempty" structs:"max_lease_ttl" mapstructure:"max_lease_ttl"`             // Override for global default
+	ForceNoCache              bool                  `json:"force_no_cache,omitempty" structs:"force_no_cache" mapstructure:"force_no_cache"`          // Override for global default
 	AuditNonHMACRequestKeys   []string              `json:"audit_non_hmac_request_keys,omitempty" structs:"audit_non_hmac_request_keys" mapstructure:"audit_non_hmac_request_keys"`
 	AuditNonHMACResponseKeys  []string              `json:"audit_non_hmac_response_keys,omitempty" structs:"audit_non_hmac_response_keys" mapstructure:"audit_non_hmac_response_keys"`
 	ListingVisibility         ListingVisibilityType `json:"listing_visibility,omitempty" structs:"listing_visibility" mapstructure:"listing_visibility"`
 	PassthroughRequestHeaders []string              `json:"passthrough_request_headers,omitempty" structs:"passthrough_request_headers" mapstructure:"passthrough_request_headers"`
 	AllowedResponseHeaders    []string              `json:"allowed_response_headers,omitempty" structs:"allowed_response_headers" mapstructure:"allowed_response_headers"`
-	TokenType                 logical.TokenType     `json:"token_type" structs:"token_type" mapstructure:"token_type"`
+	TokenType                 logical.TokenType     `json:"token_type,omitempty" structs:"token_type" mapstructure:"token_type"`
 
 	// PluginName is the name of the plugin registered in the catalog.
 	//