Update pgmonitor 4.9

Update to pull pgMonitor 4.9 queries. The new version has a specific
file for the global_dbsize metric that needs to be included when
generating the default queries

Makefile

@@ -6,7 +6,7 @@ PGO_IMAGE_URL ?= https://www.crunchydata.com/products/crunchy-postgresql-for-kub
 PGO_IMAGE_PREFIX ?= localhost
 
 PGMONITOR_DIR ?= hack/tools/pgmonitor
-PGMONITOR_VERSION ?= v4.8.1
+PGMONITOR_VERSION ?= v4.9.0
 QUERIES_CONFIG_DIR ?= hack/tools/queries
 
 # Buildah's "build" used to be "bud". Use the alias to be compatible for a while.

internal/controller/postgrescluster/pgmonitor_test.go

@@ -548,7 +548,7 @@ func TestReconcilePGMonitorExporterStatus(t *testing.T) {
 		podExecCalled:   false,
 		// Status was generated manually for this test case
 		// TODO jmckulk: add code to generate status
-		status:                      v1beta1.MonitoringStatus{ExporterConfiguration: "79b86d7d69"},
+		status:                      v1beta1.MonitoringStatus{ExporterConfiguration: "66c45b8cfd"},
 		statusChangedAfterReconcile: false,
 	}} {
 		t.Run(test.name, func(t *testing.T) {

internal/pgmonitor/exporter.go

@@ -60,7 +60,7 @@ var DefaultValuesForQueries = map[string]string{
 func GenerateDefaultExporterQueries(ctx context.Context, cluster *v1beta1.PostgresCluster) string {
 	log := logging.FromContext(ctx)
 	var queries string
-	baseQueries := []string{"backrest", "global", "per_db", "nodemx"}
+	baseQueries := []string{"backrest", "global", "global_dbsize", "per_db", "nodemx"}
 	queriesConfigDir := GetQueriesConfigDir(ctx)
 
 	// TODO: When we add pgbouncer support we will do something like the following: