更新Envoy代理中的HOST标头

Question

大家好，我有一个架构，我想将我的请求从Envoy Proxy路由到nginx Proxy。正如我们所知，Nginx处理HOST头匹配来路由其请求。在将请求从Envoy转发到Nginx时，我在设置主机标头时遇到问题。我有以下配置

LDS.config

resources:
- "@type": type.googleapis.com/envoy.config.listener.v3.Listener
name: listener_0
address:
socket_address:
address: 0.0.0.0
port_value: 8443
filter_chains:
- filters:
name: envoy.filters.network.http_connection_manager
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
codec_type: HTTP1
stat_prefix: ingress_http
http_filters:
- name: envoy.router
route_config:
name: local_route
virtual_hosts:
- name: app
domains:
- "some.domain.com"
routes:
- match:
prefix: "/"
route:
cluster: test-cluster
host_rewrite_literal: "mydns.com"
transport_socket:
name: envoy.transport_sockets.tls
typed_config:
"@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext
common_tls_context:
tls_certificates:
certificate_chain: { filename: "/etc/ssl/merged_certificate.crt" }
private_key: { filename: "/etc/ssl/key.key" }

CDS.config

resources:
- "@type": type.googleapis.com/envoy.config.cluster.v3.Cluster
name: test-cluster
connect_timeout: 30s
type: static
load_assignment:
cluster_name: test-cluster
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: my_private_ip_address
port_value: 443

我尝试过auto_host_rewrite，但发现它不适用于静态集群类型。但它也不使用host_lilateral进行更新。

Answer 1

事实证明，配置的工作完全符合预期。我在NGINX访问日志中查看了错误的标头以进行验证。经验教训。