Diagnostico: pg_isready y el cliente pg de Medusa fallan de forma consistente (100%, 186/186 intentos) cuando el pod queda agendado en un nodo distinto al de commerce-postgres-0. TCP handshake (nc/ping) funciona cruzando nodos, pero el primer paquete de datos real de la sesion nunca llega - blackhole de PMTU Discovery entre los nodos del cluster k3d (flannel VXLAN / MTU del bridge Docker subyacente). Se agrega podAffinity requiredDuringSchedulingIgnoredDuringExecution (no nodeSelector fijo, mantiene portabilidad) para que medusa-deploy siempre comparta nodo con commerce-postgres-0 y evite cruzar el blackhole. Es un workaround, no el fix de raiz: documentado en docs/known-issues.md junto con el TODO de ajustar el MTU del cluster a 1400.
121 lines
2.9 KiB
YAML
121 lines
2.9 KiB
YAML
apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: medusa-deploy
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spec:
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replicas: 1
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strategy:
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type: RollingUpdate
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rollingUpdate:
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maxUnavailable: 0
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maxSurge: 1
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selector:
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matchLabels:
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app: medusa
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template:
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metadata:
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labels:
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app: medusa
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spec:
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imagePullSecrets:
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- name: gitea-registry-secret
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affinity:
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podAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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- labelSelector:
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matchLabels:
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app: commerce-postgres
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topologyKey: kubernetes.io/hostname
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initContainers:
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- name: wait-for-postgres
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image: postgres:17-alpine
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imagePullPolicy: IfNotPresent
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command:
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- sh
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- -c
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- |
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until pg_isready -d "$DATABASE_URL" -t 5; do
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echo "postgres no disponible aun, reintentando..."
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sleep 2
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done
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envFrom:
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- secretRef:
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name: commerce-secrets
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resources:
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requests:
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cpu: 25m
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memory: 32Mi
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limits:
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cpu: 100m
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memory: 64Mi
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- name: migrations
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image: gitea.cruzcloud.net/devops/ecommerce-medusa:v1.0.85
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imagePullPolicy: IfNotPresent
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command:
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- npx
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- medusa
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- db:migrate
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envFrom:
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- configMapRef:
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name: commerce-config
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- secretRef:
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name: commerce-secrets
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resources:
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requests:
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cpu: 50m
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memory: 256Mi
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limits:
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cpu: 500m
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memory: 768Mi
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containers:
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- name: medusa
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image: gitea.cruzcloud.net/devops/ecommerce-medusa:v1.0.85
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imagePullPolicy: IfNotPresent
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envFrom:
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- configMapRef:
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name: commerce-config
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- secretRef:
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name: commerce-secrets
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ports:
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- name: http
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containerPort: 9000
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readinessProbe:
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httpGet:
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path: /health
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port: http
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initialDelaySeconds: 20
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periodSeconds: 10
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timeoutSeconds: 5
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failureThreshold: 18
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livenessProbe:
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httpGet:
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path: /health
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port: http
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initialDelaySeconds: 60
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periodSeconds: 20
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timeoutSeconds: 5
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failureThreshold: 6
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resources:
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requests:
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cpu: 150m
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memory: 384Mi
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limits:
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cpu: 750m
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memory: 1Gi
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: medusa-svc
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spec:
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selector:
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app: medusa
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ports:
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- name: http
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port: 9000
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targetPort: 9000
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