fix env var (GoogleCloudPlatform#2026)

averikitsch · web-flow · commit c7c0de9512a6 · 2020-01-24T15:54:05.000-08:00
diff --git a/appengine-java11/spanner/src/main/java/com/example/appengine/spanner/SpannerClient.java b/appengine-java11/spanner/src/main/java/com/example/appengine/spanner/SpannerClient.java
@@ -94,7 +94,7 @@ public void contextInitialized(ServletContextEvent event) {
     }
     // try system properties
     if (INSTANCE_ID == null) {
-      INSTANCE_ID = System.getProperty("SPANNER_INSTANCE");
+      INSTANCE_ID = System.getenv("SPANNER_INSTANCE");
     }
 
     if (DATABASE_ID == null) {

Original file line number	Diff line number	Diff line change
`@@ -94,7 +94,7 @@ public void contextInitialized(ServletContextEvent event) {`
`94`	`94`	`}`
`95`	`95`	`// try system properties`
`96`	`96`	`if (INSTANCE_ID == null) {`
`97`		`- INSTANCE_ID = System.getProperty("SPANNER_INSTANCE");`
	`97`	`+ INSTANCE_ID = System.getenv("SPANNER_INSTANCE");`
`98`	`98`	`}`
`99`	`99`
`100`	`100`	`if (DATABASE_ID == null) {`