My first action is ready

Dockerfile

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+# Name the portage image
+FROM gentoo/portage:latest as portage
+
+# Based on the stage3 image
+FROM gentoo/stage3:latest
+
+# Copy the entire porage volume in
+COPY --from=portage /var/db/repos/gentoo /var/db/repos/gentoo
+
+# Emerge pycargoebuild
+RUN emerge -qv app-portage/pycargoebuild
+
+# Set the working directory inside the container
+WORKDIR /usr/src
+
+# Copy any source file(s) required for the action
+COPY entrypoint.sh .
+
+# Configure the container to be run as an executable
+ENTRYPOINT ["/usr/src/entrypoint.sh"]

README.md

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 # testing
+
+# Hello world docker action
+
+This action prints "Hello World" or "Hello" + the name of a person to greet to the log.
+
+## Inputs
+
+## `who-to-greet`
+
+**Required** The name of the person to greet. Default `"World"`.
+
+## Outputs
+
+## `time`
+
+The time we greeted you.
+
+## Example usage
+
+uses: actions/hello-world-docker-action@v2
+with:
+  who-to-greet: 'Mona the Octocat'
+

action.yml

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+name: 'Hello World'
+description: 'Greet someone and record the time'
+
+# Define your inputs here.
+inputs:
+  who-to-greet:
+    description: 'Who to greet'
+    required: true
+    default: 'World'
+
+# Define your outputs here.
+outputs:
+  time:
+    description: 'The time we greeted you'
+
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
+  args:
+    - ${{ inputs.who-to-greet }}

entrypoint.sh

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+#!/bin/bash -l
+
+echo "Hello $1"
+time=$(date)
+echo "time=$time" >> $GITHUB_OUTPUT