environment variable substitution

.env.sample

@@ -0,0 +1,3 @@
+UID2_CSTG_BASE_URL="https://operator-integ.uidapi.com"
+UID2_CSTG_SERVER_PUBLIC_KEY="UID2-X-I-MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEo+jcPlk8GWn3iG0R5Il2cbFQI9hR3TvHxaBUKHl5Vh+ugr+9uLMiXihka8To07ETFGghEifY96Hrpe5RnYko7Q=="
+UID2_CSTG_SUBSCRIPTION_ID="DMr7uHxqLU"

.gitattributes

@@ -0,0 +1,13 @@
+# Set default behavior to automatically normalize line endings
+* text=auto
+
+# Shell scripts should use LF
+*.sh text eol=lf
+
+# Docker files should use LF
+Dockerfile text eol=lf
+docker-compose.yml text eol=lf
+
+# Environment files can use CRLF on Windows
+*.env text
+env text

.gitignore

@@ -1,2 +1,3 @@
 .idea/
 .DS_Store
+.env

README.md

@@ -22,3 +22,64 @@ The example applications illustrate the basic steps that you need to consider fo
 - Deal with missing identities.
 - Handle user opt-outs.
 
+## Docker Compose Setup
+
+This repository includes Docker Compose configuration for easy development and testing of multiple UID2 integration examples.
+
+### Quick Start
+
+**Start all services:**
+```bash
+docker-compose up -d
+```
+
+**Start a single service:**
+```bash
+# Start only the Prebid.js client-side integration
+docker-compose up -d prebid-client
+
+# Start with live logs (foreground)
+docker-compose up prebid-client
+```
+
+**Stop services:**
+```bash
+# Stop all services
+docker-compose down
+
+# Stop a single service
+docker-compose stop prebid-client
+```
+
+**View logs:**
+```bash
+# View all logs
+docker-compose logs -f
+
+# View logs for a specific service
+docker-compose logs -f prebid-client
+```
+
+**Rebuild and restart:**
+```bash
+# Rebuild and restart all services
+docker-compose up -d --build
+
+# Rebuild and restart a single service
+docker-compose up -d --build prebid-client
+```
+
+### Available Services
+
+- **`prebid-client`** - Prebid.js client-side integration (Port: 3031)
+- *More services will be added as they are containerized*
+
+### Environment Configuration
+
+Edit the `.env` file in the base directory to configure your UID2 settings:
+```
+UID2_BASE_URL="http://localhost:8080"
+SERVER_PUBLIC_KEY="your-public-key"
+SUBSCRIPTION_ID="your-subscription-id"
+```
+

docker-compose.yml

@@ -0,0 +1,27 @@
+version: '3.8'
+
+services:
+  prebid-client:
+    build:
+      context: .
+      dockerfile: web-integrations/prebid-integrations/client-side/Dockerfile
+    ports:
+      - "3031:3031"
+    container_name: prebid-client-side
+
+  # Add more services here as needed
+  # google-secure-signals-client:
+  #   build:
+  #     context: .
+  #     dockerfile: web-integrations/google-secure-signals/client-side/Dockerfile
+  #   ports:
+  #     - "3032:3032"
+  #   container_name: google-secure-signals-client
+
+  # javascript-sdk-client:
+  #   build:
+  #     context: .
+  #     dockerfile: web-integrations/javascript-sdk/client-side/Dockerfile
+  #   ports:
+  #     - "3033:3033"
+  #   container_name: javascript-sdk-client

web-integrations/prebid-integrations/client-side/Dockerfile

@@ -1,23 +1,21 @@
-# Use nginx as the base image
 FROM nginx:alpine
 
-# Copy the static files to nginx html directory
-COPY index.html /usr/share/nginx/html/
-COPY app.css /usr/share/nginx/html/
-COPY prebid.js /usr/share/nginx/html/
-COPY config.js /usr/share/nginx/html/
+# Install gettext for envsubst
+RUN apk add --no-cache gettext
 
-# Create custom nginx config to listen on port 3031
-RUN echo 'server {' > /etc/nginx/conf.d/default.conf && \
-    echo '    listen 3031;' >> /etc/nginx/conf.d/default.conf && \
-    echo '    location / {' >> /etc/nginx/conf.d/default.conf && \
-    echo '        root /usr/share/nginx/html;' >> /etc/nginx/conf.d/default.conf && \
-    echo '        index index.html;' >> /etc/nginx/conf.d/default.conf && \
-    echo '    }' >> /etc/nginx/conf.d/default.conf && \
-    echo '}' >> /etc/nginx/conf.d/default.conf
+# Copy the env file
+COPY .env /tmp/env
 
-# Expose port 3031
-EXPOSE 3031
+# Copy static files from client-side directory
+COPY web-integrations/prebid-integrations/client-side/app.css /usr/share/nginx/html/
+COPY web-integrations/prebid-integrations/client-side/prebid.js /usr/share/nginx/html/
 
-# Start nginx
-CMD ["nginx", "-g", "daemon off;"]
+# Copy config and HTML
+COPY web-integrations/prebid-integrations/client-side/default.conf /etc/nginx/conf.d/default.conf
+COPY web-integrations/prebid-integrations/client-side/index.html /usr/share/nginx/html/index.template.html
+COPY web-integrations/prebid-integrations/client-side/entrypoint.sh /entrypoint.sh
+
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["nginx", "-g", "daemon off;"]

web-integrations/prebid-integrations/client-side/README.md

@@ -22,17 +22,16 @@ Then navigate to [http://localhost:3031](http://localhost:3031) to view the appl
 
 ### Local Development with Custom Settings
 
-For local development, you can override the default settings by editing the `config.js` file:
+The application automatically reads configuration from the `.env` file in the sample directory and substitutes the values into the HTML:
 
-1. **Edit `config.js`** - Uncomment and modify the lines for your local environment:
-   ```javascript
-   // Uncomment these lines in config.js:
-   window.UID2_BASE_URL = 'https://your-local-uid2-operator.com';
-   window.SERVER_PUBLIC_KEY = 'your-local-public-key';
-   window.SUBSCRIPTION_ID = 'your-local-subscription-id';
+1. **Edit the `env` file** in the sample directory (`.env`) to set your local values:
+   ```
+   UID2_BASE_URL="http://localhost:8080"
+   SERVER_PUBLIC_KEY="your-local-public-key"
+   SUBSCRIPTION_ID="your-local-subscription-id"
    ```
 
-2. **Rebuild and run the Docker container:**
+2. **Build and run the Docker container:**
    ```bash
    docker build -t prebid-client-side .
    docker run -p 3031:3031 prebid-client-side
@@ -41,10 +40,10 @@ For local development, you can override the default settings by editing the `con
 3. **Alternative: Use browser dev tools** (for quick testing):
    ```javascript
    // In browser console before page load
-   window.UID2_BASE_URL = 'https://your-local-uid2-operator.com';
+   window.uid2_example_settings.UID2_BASE_URL = 'https://your-local-uid2-operator.com';
    ```
 
-The `config.js` file includes example configurations for different environments (local, test, staging).
+The Docker build process automatically reads the `.env` file and substitutes the values into the HTML using `envsubst`. If a variable is not set in the `env` file, it uses the default values (after the `:-` in the substitution syntax).
 
 
 ## Prebid.js

web-integrations/prebid-integrations/client-side/default.conf

@@ -0,0 +1,9 @@
+server {
+    listen 3031;
+
+    location / {
+        root /usr/share/nginx/html;
+        index index.html;
+        try_files $uri $uri/ =404;
+    }
+}

web-integrations/prebid-integrations/client-side/entrypoint.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Load environment variables from env file
+export $(cat /tmp/env | xargs)
+
+# Set default values if not provided
+export BASE_URL=${UID2_CSTG_BASE_URL:-"https://operator-integ.uidapi.com"}
+export SERVER_PUBLIC_KEY=${UID2_CSTG_SERVER_PUBLIC_KEY:-"UID2-X-I-MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEo+jcPlk8GWn3iG0R5Il2cbFQI9hR3TvHxaBUKHl5Vh+ugr+9uLMiXihka8To07ETFGghEifY96Hrpe5RnYko7Q=="}
+export SUBSCRIPTION_ID=${UID2_CSTG_SUBSCRIPTION_ID:-"DMr7uHxqLU"}
+
+# Copy static files
+cp /usr/share/nginx/html/app.css /usr/share/nginx/html/
+cp /usr/share/nginx/html/prebid.js /usr/share/nginx/html/
+
+# Process index.html template with environment variables
+envsubst < /usr/share/nginx/html/index.template.html > /usr/share/nginx/html/index.html
+
+# Start nginx
+exec nginx -g "daemon off;"

web-integrations/prebid-integrations/client-side/index.html

@@ -7,14 +7,13 @@
     <link rel="shortcut icon" href="/img/favicon.ico" />
     <script async src="./prebid.js"></script>
     <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
-    <script src="./config.js"></script>
     <script>
       console.log('Initializing example.')
       // Environment variables with defaults
       window.uid2_example_settings = {
-        UID2_BASE_URL: window.UID2_BASE_URL || 'https://operator-integ.uidapi.com',
-        SERVER_PUBLIC_KEY: window.SERVER_PUBLIC_KEY || 'UID2-X-I-MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEo+jcPlk8GWn3iG0R5Il2cbFQI9hR3TvHxaBUKHl5Vh+ugr+9uLMiXihka8To07ETFGghEifY96Hrpe5RnYko7Q==',
-        SUBSCRIPTION_ID: window.SUBSCRIPTION_ID || 'DMr7uHxqLU',
+        UID2_BASE_URL: '${BASE_URL}',
+        SERVER_PUBLIC_KEY: '${SERVER_PUBLIC_KEY}',
+        SUBSCRIPTION_ID: '${SUBSCRIPTION_ID}',
       };
 
       function updateGuiElements() {