Support String image in Bigtable, Firestore, PubSub, Spanner (#7327)

Author: eddumelendez

modules/gcloud/src/main/java/org/testcontainers/containers/BigtableEmulatorContainer.java

@@ -22,6 +22,10 @@ public class BigtableEmulatorContainer extends GenericContainer<BigtableEmulator
 
     private static final int PORT = 9000;
 
+    public BigtableEmulatorContainer(String image) {
+        this(DockerImageName.parse(image));
+    }
+
     public BigtableEmulatorContainer(final DockerImageName dockerImageName) {
         super(dockerImageName);
         dockerImageName.assertCompatibleWith(DEFAULT_IMAGE_NAME, CLOUD_SDK_IMAGE_NAME);

modules/gcloud/src/main/java/org/testcontainers/containers/FirestoreEmulatorContainer.java

@@ -22,6 +22,10 @@ public class FirestoreEmulatorContainer extends GenericContainer<FirestoreEmulat
 
     private static final int PORT = 8080;
 
+    public FirestoreEmulatorContainer(String image) {
+        this(DockerImageName.parse(image));
+    }
+
     public FirestoreEmulatorContainer(final DockerImageName dockerImageName) {
         super(dockerImageName);
         dockerImageName.assertCompatibleWith(DEFAULT_IMAGE_NAME, CLOUD_SDK_IMAGE_NAME);

modules/gcloud/src/main/java/org/testcontainers/containers/PubSubEmulatorContainer.java

@@ -22,6 +22,10 @@ public class PubSubEmulatorContainer extends GenericContainer<PubSubEmulatorCont
 
     private static final int PORT = 8085;
 
+    public PubSubEmulatorContainer(String image) {
+        this(DockerImageName.parse(image));
+    }
+
     public PubSubEmulatorContainer(final DockerImageName dockerImageName) {
         super(dockerImageName);
         dockerImageName.assertCompatibleWith(DEFAULT_IMAGE_NAME, CLOUD_SDK_IMAGE_NAME);

modules/gcloud/src/main/java/org/testcontainers/containers/SpannerEmulatorContainer.java

@@ -16,6 +16,10 @@ public class SpannerEmulatorContainer extends GenericContainer<SpannerEmulatorCo
 
     private static final int HTTP_PORT = 9020;
 
+    public SpannerEmulatorContainer(String image) {
+        this(DockerImageName.parse(image));
+    }
+
     public SpannerEmulatorContainer(final DockerImageName dockerImageName) {
         super(dockerImageName);
         dockerImageName.assertCompatibleWith(DEFAULT_IMAGE_NAME);