Adding Containerfile for playground and GitHub workflow

.github/workflows/build_playground.yml

@@ -0,0 +1,91 @@
+name: "Build and Push Playground Image"
+
+env:
+  IMAGE_NAME: "jland/llama-stack-playground"
+  IMAGE_TAG_LATEST: "latest"
+  REGISTRY_URL: "quay.io" # Replace with your registry URL
+  REGISTRY_USERNAME: ${{ secrets.REGISTRY_USERNAME }}
+  REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
+
+on:
+  pull_request:
+    paths:
+      - 'llama_stack/distribution/ui/**'
+  push:
+    paths:
+      - 'llama_stack/distribution/ui/**'
+    tags:
+      - '*'
+
+jobs:
+  ########################################
+  #### Validate Code and Image Builds ####
+  ########################################
+  validate-code:
+    name: Validate Playground Code
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.9' 
+
+      - name: "Validate Code"
+        id: validate_code
+        run: |
+          cd llama_stack/distribution/ui
+          pip install -r requirements.txt
+          nohup streamlit run app.py &
+          sleep 10
+          curl -f http://localhost:8501 || exit 1
+
+  ########################################
+  #### Validate Code and Image Builds ####
+  ########################################
+  validate-image:
+    name: Validate Playground Image Build
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      # Build and Push image to registry with tag matching the Git Tag and latest
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./llama_stack/distribution/ui/
+          file: ./llama_stack/distribution/ui/Containerfile
+          push: false
+          tags: ${{ env.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:local
+          ulimit: nofile=4096
+
+
+  validate-and-deploy-image:
+    name: Validate and Deploy Playground Image
+    runs-on: ubuntu-latest
+    needs: validate-code
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Login to Image Registry
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+          registry: ${{ env.REGISTRY_URL }}
+
+      # Build and Push image to registry with tag matching the Git Tag and latest
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./llama_stack/distribution/ui/
+          file: ./llama_stack/distribution/ui/Containerfile
+          push: true
+          tags: ${{ env.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}, ${{ env.REGISTRY_URL }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG_LATEST }}
+          ulimit: nofile=4096

llama_stack/distribution/ui/Containerfile

@@ -0,0 +1,8 @@
+FROM python:3.9-slim
+WORKDIR /app
+COPY . /app/
+RUN /usr/local/bin/python -m pip install --upgrade pip && \
+    /usr/local/bin/pip3 install -r requirements.txt
+EXPOSE 8501
+
+ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]

llama_stack/distribution/ui/README.md

@@ -40,3 +40,13 @@ cd llama_stack/distribution/ui
 pip install -r requirements.txt
 streamlit run app.py
 ```
+
+## Environment Variables
+
+| Environment Variable       | Description                        | Default Value             |
+|----------------------------|------------------------------------|---------------------------|
+| LLAMA_STACK_ENDPOINT       | The endpoint for the Llama Stack   | http://localhost:8321     |
+| FIREWORKS_API_KEY          | API key for Fireworks provider     | (empty string)            |
+| TOGETHER_API_KEY           | API key for Together provider      | (empty string)            |
+| SAMBANOVA_API_KEY          | API key for SambaNova provider     | (empty string)            |
+| OPENAI_API_KEY             | API key for OpenAI provider        | (empty string)            |