lcitool: edit error message during container run (or shell) operation.

If only an "ubuntu:22.04" image is present locally, passing
"ubuntu" as the image argument halts the operation giving
no indication that the error is caused because "ubuntu"
equates to "ubuntu:latest".

Adding this information helps give more context to the error message.
From:
    ...
    Image 'ubuntu' not found in local cache. Build it or pull from registry first.
    ...
To:
    ...
    Image 'ubuntu:latest' not found in local cache. Build it or pull from registry first.
    ...

Signed-off-by: Abdulwasiu Apalowo <abdulwasiuapalowo@gmail.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/lcitool/application.py b/lcitool/application.py
index f2808af..0d3a8dd 100644
--- a/lcitool/application.py
+++ b/lcitool/application.py
@@ -350,8 +350,13 @@ class Application:
                                                dir=util.get_temp_dir())
         params["tempdir"] = container_tempdir.name
 
-        if not client.image_exists(args.image):
-            print(f"Image '{args.image}' not found in local cache. Build it or pull from registry first.")
+        image = args.image
+        tag = "latest"
+        if ":" in image:
+            image, tag = args.image.split(":")
+
+        if not client.image_exists(image, tag):
+            print(f"Image '{image}:{tag}' not found in local cache. Build it or pull from registry first.")
             return
 
         params["image"] = args.image