Observability & SRE
Structured logging, metrics, tracing, health checks, and SLO-friendly instrumentation.
How to Create a Deployment Environment Tag in Python
Generate a standardized deployment tag string by combining service and environment names with an f-string.
def mock_env_tag(service, environment):
return f"{service}-{environment}"
if __name__ == "__main__":
service = "api-gateway"
environment = "production"
tag = mock_env_tag(service, environment)
print(f"Deployment tag: {tag}")
How to Implement an Error Budget Policy in Python
This code implements a mock error budget policy that decides whether to freeze deployments based on a simulated error rate and monthly freeze limits.
from datetime import datetime, timedelta
class ErrorBudgetPolicy:
FREEZE_WINDOW_HOURS = 24
MAX_FREEZES_PER_MONTH = 3
def __init__(self, budget_percentage=99.9):
self.budget_percentage = budget_percentage
self.freeze_count = 0
self.last_freeze_start = None
self.freeze_enabl…
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Observability & SRE — Python code examples
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