Architecture Intermediate

Ambassador Pattern — proxy pro externí služby¶

AmbassadorProxyPatterns 3 min read

Ambassador jako proxy mezi aplikací a externími službami. Retry, circuit breaking, monitoring.

Principle¶

Speciální typ sidecar pro komunikaci s externími službami. Centralizuje retry, circuit breaking, logging.

Example¶

Aplikace se připojuje k localhost:6379, ambassador řeší TLS a retry k externímu Redis.

# Envoy ambassador config
clusters:
  - name: redis_cluster
    connect_timeout: 5s
    type: STRICT_DNS
    load_assignment:
      endpoints:
        - lb_endpoints:
            - endpoint:
                address:
                  socket_address: {address: redis.external.com, port_value: 6379}
    circuit_breakers:
      thresholds:
        - max_connections: 100

Summary¶

Ambassador = podmnožina sidecar patternu. Jednotné řešení pro retry, monitoring a circuit breaking k externím službám.

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