Added support for running on Podman and Docker.

build.sh

@@ -4,5 +4,15 @@ IMAGE_NAME="azure-image-chooser"
 #IMAGE="docker.io/skoszewski/$IMAGE_NAME"
 IMAGE="skdomlab.azurecr.io/$IMAGE_NAME"
 
-podman build -t $IMAGE .
-podman push $IMAGE
+if [ "$(command -v docker)" = "docker" ]
+then
+    CMD="docker"
+elif [ "$(command -v podman)" = "podman" ]; then
+    CMD="podman"
+else
+    echo "No suitable container tool found"
+    exit 1
+fi
+
+$CMD build -t $IMAGE .
+$CMD push $IMAGE