Prevent WebSocket disconnections during deployments by: 1. Rolling Update Strategy: - maxSurge: 1 (allow 1 extra pod during rollout) - maxUnavailable: 0 (keep all pods running) - minReadySeconds: 10 (wait before continuing rollout) 2. Graceful Shutdown: - terminationGracePeriodSeconds: 30 (allow Phoenix to drain connections) 3. PodDisruptionBudget: - minAvailable: 1 (ensure at least 1 pod always available) - Prevents all pods from being terminated simultaneously 4. Improved Health Checks: - Faster readiness probe (5s initial, 3s period) - More aggressive success/failure thresholds - New pods marked ready faster This ensures new pods are fully ready and serving traffic before old pods are terminated, maintaining WebSocket connections and preventing 'something went wrong' errors during deployments.
11 lines
238 B
YAML
11 lines
238 B
YAML
---
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apiVersion: policy/v1
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kind: PodDisruptionBudget
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metadata:
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name: towerops-pdb
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namespace: towerops
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spec:
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minAvailable: 1 # Keep at least 1 pod running during voluntary disruptions
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selector:
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matchLabels:
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app: towerops
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