apiVersion: apps/v1 kind: Deployment metadata: name: postfix labels: app: postfix spec: selector: matchLabels: app: postfix template: metadata: labels: app: postfix tier: smtp spec: containers: - name: postfix image: git.altarik.fr/quentinlegot/postfix:latest resources: limits: memory: "128Mi" cpu: "500m" ports: - containerPort: 25 name: smtp - containerPort: 143 name: auth-smtp-tls - containerPort: 587 name: msa