first commit

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+	"name": "Python 3",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/python:1-3.11-bookworm",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "pip3 install --user -r requirements.txt",
+	
+	"postCreateCommand": "./.devcontainer/postCreateCommand.sh"
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/postCreateCommand.sh

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+pip install --upgrade pip
+pip3 install --user -r ./app/requirements.txt

Dockerfile

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+FROM registry.access.redhat.com/ubi9/python-311:1-17.1690899890
+
+USER 0
+COPY /app/. /app
+RUN pip install --upgrade pip \
+    pip install -r /app/requirements.txt
+CMD python /app/script.py

app/requirements.txt

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+Flask
+prometheus-client
+requests

app/script.py

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+import requests
+from flask import Flask, request
+from prometheus_client import generate_latest, Gauge, CollectorRegistry
+import time
+
+app = Flask(__name__)
+
+# Create a CollectorRegistry
+registry = CollectorRegistry()
+
+# Create a Prometheus metric for the latest release
+github_latest_release_metric = Gauge(
+    'github_latest_release',
+    'Latest release version of a GitHub repository',
+    ['repo', 'version'],
+    registry=registry,
+)
+
+# GitHub API token (replace with your actual token)
+github_api_token = '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'
+
+# Function to fetch the latest release version from GitHub
+def get_latest_release(repo_url):
+    api_url = f"https://api.github.com/repos/{repo_url}/releases/latest"
+    headers = {
+        'Authorization': f'Bearer {github_api_token}',
+        'Accept': 'application/vnd.github.v3+json'
+    }
+    response = requests.get(api_url, headers=headers)
+    data = response.json()
+    return data["tag_name"]
+
+@app.route('/metrics')
+def metrics():
+    # Get the GitHub repository URL from the query parameter
+    repo_url = request.args.get('repo')
+    if not repo_url:
+        return "Error: Please provide a 'repo' parameter.", 400
+    
+    try:
+        latest_release = get_latest_release(repo_url)
+        print(f"Latest release: {latest_release}")
+
+        # Reset the metric to its initial state
+        github_latest_release_metric.clear()
+        
+        # Set the metric value to 1 with appropriate labels
+        github_latest_release_metric.labels(repo=repo_url, version=latest_release).set(1)
+    except Exception as e:
+        print(f"Error: {e}")
+    
+    return generate_latest(registry)
+
+if __name__ == '__main__':
+    # Start the web service on port 8000
+    app.run(host='0.0.0.0', port=8000)