Change the default image command to hello (#6)

Author: zanieb

.github/workflows/ci.yaml

@@ -55,4 +55,4 @@ jobs:
           docker image ls -a
 
       - name: Test image
-        run: ./run.sh hello
+        run: ./run.sh

Dockerfile

@@ -18,3 +18,6 @@ RUN uv sync --frozen
 
 # Place executables in the environment at the front of the path
 ENV PATH="/app/.venv/bin:$PATH"
+
+# Set the default command to the application
+CMD ["hello"]

README.md

@@ -11,29 +11,35 @@ A [`run.sh`](./run.sh) utility is provided for quickly building the image and st
 This script demonstrates best practices for developing using the container, using bind mounts for
 the project and virtual environment directories.
 
-To run the application in a container:
+To run the application in the container:
 
 ```console
-$ ./run.sh hello
+$ ./run.sh
 ```
 
-To enter a Python REPL in a container:
+To run the application in the container, checking if the environment is up-to-date first:
 
 ```console
-$ ./run.sh
+$ ./run.sh uv run hello
+```
+
+To check that the environment is up-to-date:
+
+```console
+$ ./run.sh uv sync --frozen
+Audited 2 packages ...
 ```
 
-To enter a `bash` shell in a container:
+To enter a `bash` shell in the container:
 
 ```console
 $ ./run.sh /bin/bash
 ```
 
-To check that the environment is up-to-date:
+To build the image without running anything:
 
 ```console
-$ ./run.sh uv sync --frozen
-Audited 2 packages ...
+$ docker build .
 ```
 
 ## Project overview