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Update app.py
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app.py
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import os
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import subprocess
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import secrets
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import string
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def generate_secure_string(length=32):
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"""Generate a secure random string."""
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alphabet = string.ascii_letters + string.digits
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return ''.join(secrets.choice(alphabet) for _ in range(length))
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def run_langfuse():
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# Hardcoded configuration with dynamically generated secrets
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env_vars = {
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# Postgres database - using SQLite as a simple alternative
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'DATABASE_URL': 'file:///data/langfuse.db',
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# Dynamically generated secrets
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'NEXTAUTH_URL': 'https://chris4k-langfuse.hf.space',
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'NEXTAUTH_SECRET': generate_secure_string(64),
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'SALT': generate_secure_string(32),
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'ENCRYPTION_KEY': secrets.token_hex(32), # 64-character hex string
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# Additional configuration
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'HOSTNAME': '0.0.0.0',
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'PORT': '3000',
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# Disable signup if needed
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'AUTH_DISABLE_SIGNUP': 'false',
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# Optional: Initial user creation
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'LANGFUSE_INIT_USER_EMAIL': 'admin@example.com',
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'LANGFUSE_INIT_USER_PASSWORD': generate_secure_string(12),
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}
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# Pull Langfuse Docker image
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subprocess.run(['docker', 'pull', 'langfuse/langfuse:latest'], check=True)
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# Prepare Docker run command
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docker_cmd = [
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'docker', 'run', '-d',
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'-p', '3000:3000',
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'-v', '/data:/data' # Persist data
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]
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# Add environment variables
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for key, value in env_vars.items():
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docker_cmd.extend(['-e', f'{key}={value}'])
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docker_cmd.append('langfuse/langfuse:latest')
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# Run the container
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subprocess.run(docker_cmd, check=True)
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print("Langfuse is running!")
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print(f"Initial admin email: {env_vars['LANGFUSE_INIT_USER_EMAIL']}")
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print(f"Initial admin password: {env_vars['LANGFUSE_INIT_USER_PASSWORD']}")
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if __name__ == "__main__":
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run_langfuse()
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