Tipos de Feature Flags e Casos de Uso

# Release flag - temporary, remove after full rollout
new-payment-page:
  type: release
  variation: boolean
  targets:
    - percentage: 25
  expiry: 2026-04-30        # Alert if still active after this date

# Ops flag - semi-permanent kill switch
disable-recommendations:
  type: ops
  variation: boolean
  default: false            # Flip to true during incidents

# Experiment flag - A/B test with consistent bucketing
checkout-button-color:
  type: experiment
  variation: ["blue", "green", "orange"]
  bucketing: user-id         # Same user always sees the same variant

# Permission flag - long-lived, tied to business rules
advanced-analytics:
  type: permission
  rules:
    - attribute: plan
      operator: in
      values: ["pro", "enterprise"]

#!/bin/bash
# Find release flags older than 30 days that are at 100% rollout
# These are candidates for removal

echo "Stale release flags (fully rolled out > 30 days):"
for flag_file in flags/release-*.yaml; do
  created=$(yq '.created' "$flag_file")
  percentage=$(yq '.rollout.percentage' "$flag_file")
  age_days=$(( ($(date +%s) - $(date -d "$created" +%s)) / 86400 ))

  if [[ "$percentage" == "100" && "$age_days" -gt 30 ]]; then
    echo "  WARNING: $(basename $flag_file) - $age_days days old, 100% rolled out"
  fi
done