update config, add DEBUG flag check to apiserver, remove unused pgo.yaml config lines

Author: Jeff McCormick

apiserver.go

@@ -17,11 +17,19 @@ import (
 	"github.com/gorilla/mux"
 	//"io/ioutil"
 	"net/http"
-	//"os"
+	"os"
 )
 
 func main() {
 
+	debugFlag := os.Getenv("DEBUG")
+	if debugFlag == "true" {
+		log.SetLevel(log.DebugLevel)
+		log.Debug("debug flag set to true")
+	} else {
+		log.Info("debug flag set to false")
+	}
+
 	log.Infoln("postgres-operator apiserver starts")
 	r := mux.NewRouter()
 	r.HandleFunc("/version", versionservice.VersionHandler)

conf/apiserver/pgo.yaml

@@ -25,9 +25,7 @@ ReplicaStorage:
   Size:  200M
   StorageType:  create
 Pgo:
-  APIServerUrl:  http://localhost:8080
   LSPVCTemplate:  /config/pgo.lspvc-template.json
   CSVLoadTemplate:  /config/pgo.csvload-template.json
   COImagePrefix:  crunchydata
   COImageTag:  centos7-2.2
-  Debug:  true

docs/config.asciidoc

@@ -53,6 +53,7 @@ Pgo:
   APIServerUrl:  http://localhost:8080
   LSPVCTemplate:  /config/pgo.lspvc-template.json
   CSVLoadTemplate:  /config/pgo.csvload-template.json
+  COImagePrefix:  crunchydata
   COImageTag:  centos7-2.1
   Debug:  true
 ....
@@ -98,8 +99,8 @@ Values in the pgo configuration file have the following meaning:
 |BackupStorage.SupplementalGroups        | optional, if set, will cause a SecurityContext to be added to generated Pod and Deployment definitions
 |Pgo.LSPVCTemplate        | the PVC lspvc template file that lists PVC contents
 |Pgo.CSVLoadTemplate        | the CSV load template file used for load jobs
-|Pgo.COImageTag        | image tag to use for the PostgreSQL operator containers
-|Pgo.Debug        | set to true if you want to see debug messages from the pgo client
+|Pgo.COImagePrefix        | image tag prefix to use for the Operator containers
+|Pgo.COImageTag        | image tag to use for the Operator containers
 |======================
 
 *NOTE*: Regarding the PVC access mode variable; this is automatically set to ReadWriteMany but