Consul Connect — Service Mesh od HashiCorp

Consul service discovery, Connect proxy, intentions a multi-datacenter.

Consul vs Istio vs Linkerd

• Consul — service discovery first, multi-platform (K8s + VMs)
• Istio — K8s-native, nejkomplexnější
• Linkerd — K8s-only, nejlehčí

Intentions

Kind = "service-intentions"
Name = "database"
Sources = [
  { Name = "api", Action = "allow" },
  { Name = "*",   Action = "deny" }
]

Multi-Datacenter

WAN federation, cross-DC service discovery, prepared queries s failover.

Shrnutí

Consul = service mesh pro heterogenní prostředí. Silná volba pro HashiCorp stack.