v2 api support

Author: yokawasa

circuit-breaker/README.md

@@ -1,6 +1,6 @@
 # Circuit Breaker
 
-[Circuit Breaking](https://www.envoyproxy.io/learn/circuit-breaking) lets you configure failure thresholds that ensure safe maximums after which these requests stop. This allows for a more graceful failure, and time to respond to potential issues before they become larger.
+[Circuit Breaking](https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/upstream/circuit_breaking) lets you configure failure thresholds that ensure safe maximums after which these requests stop. This allows for a more graceful failure, and time to respond to potential issues before they become larger.
 
 ## Demo Overview
 
@@ -27,7 +27,7 @@ Key definition  - `clusters` in [service-envoy-circuitbreaker.yaml](service-envo
         address: 127.0.0.1
         port_value: 8080
 ```
-> For the detail of `circuit_breakers` configuration, see [cluster.CircuitBreakers](https://www.envoyproxy.io/docs/envoy/latest/api-v2/api/v2/cluster/circuit_breaker.proto#envoy-api-msg-cluster-circuitbreakers)
+> For the detail of `circuit_breakers` configuration, see [configuration example](https://www.envoyproxy.io/docs/envoy/latest/configuration/upstream/cluster_manager/cluster_circuit_breakers#config-cluster-manager-cluster-circuit-breakers) and API reference, [cluster.CircuitBreakers](https://www.envoyproxy.io/docs/envoy/latest/api-v2/api/v2/cluster/circuit_breaker.proto#envoy-api-msg-cluster-circuitbreakers)
 
 ## Getting Started
 ```sh
@@ -122,4 +122,4 @@ $ docker-compose down --remove-orphans --rmi all
 ```
 
 ---
-[Top](../README.md)
+[Top](../README.md)

circuit-breaker/docker-compose.yml

@@ -1,4 +1,4 @@
-version: '2'
+version: '3.7'
 services:
 
   front-envoy:
@@ -11,11 +11,11 @@ services:
       - envoymesh
     expose:
       # Expose ports 80 (for general traffic) and 8001 (for the admin server)
-      - "80"
+      - "8000"
       - "8001"
     ports:
-      # Map the host port 8000 to container port 80, and the host port 8001 to container port 8001
-      - "8000:80"
+      # Map the host port 8000 to container port 8000, and the host port 8001 to container port 8001
+      - "8000:8000"
       - "8001:8001"
 
   service_green:

circuit-breaker/front-envoy.yaml

@@ -3,11 +3,12 @@ static_resources:
   - address:
       socket_address:
         address: 0.0.0.0
-        port_value: 80
+        port_value: 8000
     filter_chains:
     - filters:
-      - name: envoy.http_connection_manager
-        config:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager
           codec_type: auto
           stat_prefix: ingress_http
           route_config:
@@ -26,30 +27,49 @@ static_resources:
                 route:
                   cluster: service_red
           http_filters:
-          - name: envoy.router
-            config: {}
+          - name: envoy.filters.http.router
+            typed_config: {}
   clusters:
   - name: service_green
     connect_timeout: 0.25s
     type: strict_dns
     lb_policy: round_robin
     http2_protocol_options: {}
-    hosts:
-    - socket_address:
-        address: service_green
-        port_value: 80
+    load_assignment:
+      cluster_name: service_green
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: service_green
+                port_value: 80
   - name: service_red
     connect_timeout: 0.25s
     type: strict_dns
     lb_policy: round_robin
     http2_protocol_options: {}
-    hosts:
-    - socket_address:
-        address: service_red
-        port_value: 80
+    load_assignment:
+      cluster_name: service_red
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: service_red
+                port_value: 80
 admin:
   access_log_path: "/dev/null"
   address:
     socket_address:
       address: 0.0.0.0
       port_value: 8001
+layered_runtime:
+  layers:
+    - name: static_layer_0
+      static_layer:
+        envoy:
+          resource_limits:
+            listener:
+              example_listener_name:
+                connection_limit: 10000

circuit-breaker/service-envoy-circuitbreaker.yaml

@@ -6,8 +6,9 @@ static_resources:
         port_value: 80
     filter_chains:
     - filters:
-      - name: envoy.http_connection_manager
-        config:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager
           codec_type: auto
           stat_prefix: ingress_http
           route_config:

circuit-breaker/service-envoy.yaml

@@ -6,8 +6,9 @@ static_resources:
         port_value: 80
     filter_chains:
     - filters:
-      - name: envoy.http_connection_manager
-        config:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager
           codec_type: auto
           stat_prefix: ingress_http
           route_config:
@@ -22,17 +23,22 @@ static_resources:
                 route:
                   cluster: local_service
           http_filters:
-          - name: envoy.router
-            config: {}
+          - name: envoy.filters.http.router
+            typed_config: {}
   clusters:
   - name: local_service
     connect_timeout: 0.25s
     type: strict_dns
     lb_policy: round_robin
-    hosts:
-    - socket_address:
-        address: 127.0.0.1
-        port_value: 8080
+    load_assignment:
+      cluster_name: local_service
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: 127.0.0.1
+                port_value: 8080
 admin:
   access_log_path: "/dev/null"
   address: