Add output and logging to container

Dockerfile

@@ -1,7 +1,11 @@
-FROM alpine:3.10
+# Set the base image to use for subsequent instructions
+FROM alpine:3.18
 
-COPY LICENSE README.md /
+# Set the working directory inside the container
+WORKDIR /usr/src
 
-COPY entrypoint.sh /entrypoint.sh
+# Copy any source file(s) required for the action
+COPY entrypoint.sh .
 
-ENTRYPOINT ["/entrypoint.sh"]
+# Configure the container to be run as an executable
+ENTRYPOINT ["/usr/src/entrypoint.sh"]

action.yml

@@ -1,12 +1,21 @@
-name: 'Container Action Template'
-description: 'Get started with Container actions'
-author: 'GitHub'
+name: 'The name of your action here'
+description: 'Provide a description here'
+author: 'Your name or organization here'
+
+# Define your inputs here.
 inputs:
-  myInput:
-    description: 'Input to use'
-    default: 'world'
+  who-to-greet:
+    description: 'Your input description here'
+    required: true
+    default: 'World'
+
+# Define your outputs here.
+outputs:
+  greeting:
+    description: 'Your output description here'
+
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
+  using: docker
+  image: Dockerfile
   args:
-    - ${{ inputs.myInput }}
+    - ${{ inputs.who-to-greet }}

entrypoint.sh

@@ -1,3 +1,12 @@
 #!/bin/sh -l
 
-echo "hello $1"
+# Use INPUT_<INPUT_NAME> to get the value of an input
+GREETING="Hello, $INPUT_WHO_TO_GREET!"
+
+# Use workflow commands to do things like set debug messages
+echo "::notice file=entrypoint.sh,line=7::$GREETING"
+
+# Write outputs to the $GITHUB_OUTPUT file
+echo "greeting=$GREETING" >> "$GITHUB_OUTPUT"
+
+exit 0