Envoy 基于文件系统的订阅
- Envoy动态配置及配置源
cat docker-compose.yaml version: '3.3' services: envoy: image: envoyproxy/envoy-alpine:v1.21-latest environment: - ENVOY_UID=0 - ENVOY_GID=0 volumes: - ./front-envoy.yaml:/etc/envoy/envoy.yaml - ./eds.conf.d/:/etc/envoy/eds.conf.d/ networks: envoymesh: ipv4_address: 172.31.11.2 aliases: - front-proxy depends_on: - webserver01-sidecar - webserver02-sidecar webserver01-sidecar: image: envoyproxy/envoy-alpine:v1.21-latest environment: - ENVOY_UID=0 - ENVOY_GID=0 volumes: - ./envoy-sidecar-proxy.yaml:/etc/envoy/envoy.yaml hostname: webserver01 networks: envoymesh: ipv4_address: 172.31.11.11 aliases: - webserver01-sidecar webserver01: image: ikubernetes/demoapp:v1.0 environment: - PORT=8080 - HOST=127.0.0.1 network_mode: "service:webserver01-sidecar" depends_on: - webserver01-sidecar webserver02-sidecar: image: envoyproxy/envoy-alpine:v1.21-latest environment: - ENVOY_UID=0 - ENVOY_GID=0 volumes: - ./envoy-sidecar-proxy.yaml:/etc/envoy/envoy.yaml hostname: webserver02 networks: envoymesh: ipv4_address: 172.31.11.12 aliases: - webserver02-sidecar webserver02: image: ikubernetes/demoapp:v1.0 environment: - PORT=8080 - HOST=127.0.0.1 network_mode: "service:webserver02-sidecar" depends_on: - webserver02-sidecar networks: envoymesh: driver: bridge ipam: config: - subnet: 172.31.11.0/24 cat envoy-sidecar-proxy.yaml admin: profile_path: /tmp/envoy.prof access_log_path: /tmp/admin_access.log address: socket_address: address: 0.0.0.0 port_value: 9901 static_resources: listeners: - name: listener_0 address: socket_address: { address: 0.0.0.0, port_value: 80 } 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 stat_prefix: ingress_http codec_type: AUTO route_config: name: local_route virtual_hosts: - name: local_service domains: ["*"] routes: - match: { prefix: "/" } route: { cluster: local_cluster } http_filters: - name: envoy.filters.http.router clusters: - name: local_cluster connect_timeout: 0.25s type: STATIC lb_policy: ROUND_ROBIN load_assignment: cluster_name: local_cluster endpoints: - lb_endpoints: - endpoint: address: socket_address: { address: 127.0.0.1, port_value: 8080 } cat front-envoy.yaml node: id: envoy_front_proxy cluster: MageEdu_Cluster admin: profile_path: /tmp/envoy.prof access_log_path: /tmp/admin_access.log address: socket_address: address: 0.0.0.0 port_value: 9901 static_resources: listeners: - name: listener_0 address: socket_address: { address: 0.0.0.0, port_value: 80 } 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 stat_prefix: ingress_http codec_type: AUTO route_config: name: local_route virtual_hosts: - name: web_service_01 domains: ["*"] routes: - match: { prefix: "/" } route: { cluster: webcluster } http_filters: - name: envoy.filters.http.router clusters: - name: webcluster connect_timeout: 0.25s type: EDS lb_policy: ROUND_ROBIN eds_cluster_config: service_name: webcluster eds_config: path: '/etc/envoy/eds.conf.d/eds.yaml' cat eds.conf.d/eds.yaml resources: - "@type": type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment cluster_name: webcluster endpoints: - lb_endpoints: - endpoint: address: socket_address: address: 172.31.11.11 port_value: 80 cat eds.conf.d/eds.yaml.v1 resources: - "@type": type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment cluster_name: webcluster endpoints: - lb_endpoints: - endpoint: address: socket_address: address: 172.31.11.11 port_value: 80 cat eds.conf.d/eds.yaml.v2 version_info: '2' resources: - "@type": type.googleapis.com/envoy.config.endpoint.v3.ClusterLoadAssignment cluster_name: webcluster endpoints: - lb_endpoints: - endpoint: address: socket_address: address: 172.31.11.11 port_value: 80 - endpoint: address: socket_address: address: 172.31.11.12 port_value: 80
- 启动
-
docker-compose up
- 启动之后直接访问看只有172.31.11.11
-
- 进入到容器替换配置文件,替换之后curl访问可以发现已经有172.31.11.12了
-
docker-compose exec envoy /bin/sh cd /etc/envoy/eds.conf.d/ mv eds.yaml.v2 eds.yaml
- 将配置文件改回来,进行curl访问
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cp eds.yaml.v1 eds.yaml mv eds.yaml temp && mv temp eds.yaml