diff --git a/.env b/.env
new file mode 100644
index 0000000..bad1ef2
--- /dev/null
+++ b/.env
@@ -0,0 +1,2 @@
+echo "{name}={value}" >> "$GITHUB_OUTPUT"
+echo "{environment_variable_name}={value}" >> "$GITHUB_ENV"
\ No newline at end of file
diff --git a/.github/workflows/DevelopInBranch.yml b/.github/workflows/DevelopInBranch.yml
new file mode 100644
index 0000000..f48823b
--- /dev/null
+++ b/.github/workflows/DevelopInBranch.yml
@@ -0,0 +1,27 @@
+# workflow to show how to develop workflows in branches
+name: Develop in a branch
+on: [pull_request, workflow_dispatch]
+
+jobs:
+  job1:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+    steps:
+      - run: |
+          echo "Workflow triggered in branch '${{ github.ref }}'."
+          echo "Workflow triggered by event '${{ github.event_name }}'."
+          echo "Workflow triggered by actor '${{ github.actor }}''."
+      # - uses: actions/checkout@v4.2.2
+      # - uses: devops-actions/actionlint@v0.1.3
+      # - run: echo "PR title is '${{ github.event.pull_request.title }}'."
+      - run: |
+          echo "::debug::This is a debug message."
+          echo "::notice::This is a notice message."
+          echo "::warning::This is a warning message."
+          echo "::error::This is an error message."
+      - run: |
+          echo "::notice file=.github/workflows/DevelopInBranch.yml,line=19,col=11,endColumn=51::There is a debug message that is not always visible!"
+          echo "::warning file=.github/workflows/DevelopInBranch.yml,line=19,endline=21::A lot of messages"
+          echo "::error title=Script Injection,file=.github/workflows/DevelopInBranch.yml,line=13,col=37,endColumn=68::Potential script injection"
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..5a85067
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+name: Action CI
+on: [push]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4.2.2
+      - name: Run my own container action
+        id: my-action
+        uses: ./
+        with:
+          who-to-greet: '@howsen82'
+      - name: Test the container
+        if: ${{ steps.my-action.outputs.answer != 42 }}
+        run: |
+            echo "::error file=entrypoint.sh,line=4,title=Error in container::The answer was not expected"
+            exit 1
+      - name: Set the value
+        id: step_one
+        run: |
+          echo "action_state=yellow" >> "$GITHUB_ENV"
+      - run: |
+          echo "${{ env.action_state }}" # This will output 'yellow'
\ No newline at end of file
diff --git a/03. Building GitHub Actions.md b/03. Building GitHub Actions.md
index ea01b7b..e7f8131 100644
--- a/03. Building GitHub Actions.md	
+++ b/03. Building GitHub Actions.md	
@@ -633,7 +633,7 @@ I haven’t included a recipe for adjusting the unit tests in this book as this
    npm run bundle
    git add .
    git commit -m "Fail CI build"
-   git push –set-upstream origin fail-ci-build
+   git push --set-upstream origin fail-ci-build
    gh pr create --fill
    ```
 
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..262fef3
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,12 @@
+# Container image that runs your code
+# FROM alpine:latest
+# CMD echo "Hello World"
+FROM alpine:3.21
+
+COPY entrypoint.sh /entrypoint.sh
+
+RUN chmod +x entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+
+# docker run $(docker build -q .)
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..44a6b3d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,47 @@
+# DockerActionRecipe
+
+A Docker container actions that handles input and output writes a job summary.
+
+## Inputs
+
+## `who-to-greet`
+
+**Required** The name of the person to greet. Default `"World"`.
+
+## Outputs
+
+## `answer`
+
+The answer to the ultimate question of life, the universe, and everything.
+
+## Usage
+
+```yaml
+- uses: howsen82/DockerActionRecipe@v1.0
+  with:
+    # Required: the person to greet with the action
+    # Default: World
+    who-to-greet: ''
+```
+
+## Examples
+
+### Simple example
+
+```yaml
+- uses: howsen82/DockerActionRecipe@v1.0
+  with:
+    who-to-greet: 'Steven Leong'
+```
+
+### Example that uses the output parameter
+
+```yaml
+- uses: howsen82/DockerActionRecipe@v1.0
+  id: my-action
+  with:
+    who-to-greet: 'Steven Leong'
+
+- name: Output the answer
+  run: echo "The answer is '${{ steps.my-action.outputs.answer }}'"
+```
\ No newline at end of file
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..58584dc
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,23 @@
+name: 'Docker Action Recipe'
+description: 'Greet someone'
+
+branding:
+  icon: bell
+  color: purple
+author: 'Steven Leong'
+
+inputs:
+  who-to-greet:
+    description: 'Who to greet'
+    required: true
+    default: 'World'
+
+outputs:
+  answer:
+    description: 'The answer to everything (always 42)'
+
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
+  args:
+    - ${{ inputs.who-to-greet }}
\ No newline at end of file
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100644
index 0000000..213549d
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,5 @@
+#!/bin/sh -l
+echo "Hello $@"
+echo "answer=7" >> $GITHUB_OUTPUT
+echo "### Hello $@! :rocket:" >> $GITHUB_STEP_SUMMARY
+echo "<h3> The answer from Deep Thought is 42 :robot:</h3>" >> $GITHUB_STEP_SUMMARY
\ No newline at end of file