docs: fix passing env vars example (#1252)

The current example does not compile, suggested a fix.
testcontainers · Jun 1, 2023 · bc15b11 · bc15b11
1 parent 08a56c9
commit bc15b11
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/docs/features/build_from_dockerfile.md b/docs/features/build_from_dockerfile.md
@@ -27,12 +27,13 @@ ARG FOO
 You can specify them like:
 
 ```go
+val := "BAR" 
 req := ContainerRequest{
 		FromDockerfile: testcontainers.FromDockerfile{
 			Context: "/path/to/build/context",
 			Dockerfile: "CustomDockerfile",
 			BuildArgs: map[string]*string {
-				"FOO": "BAR",
+				"FOO": &val,
 			},
 		},
 	}