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envoy.yaml
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envoy.yaml
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static_resources:
listeners:
- address:
socket_address:
address: 0.0.0.0
port_value: 8000
filter_chains:
- filters:
- name: envoy.http_connection_manager
config:
stat_prefix: ingress_http
access_log:
- name: envoy.file_access_log
config:
path: /dev/stdout
route_config:
name: local_route
virtual_hosts:
- name: backend_service
domains:
- "*"
routes:
- match:
prefix: "/blue/*"
route:
cluster: envoy-api-blue-service
- match:
prefix: "/green/*"
route:
cluster: envoy-api-green-service
http_filters:
- name: envoy.lua
typed_config:
"@type": type.googleapis.com/envoy.config.filter.http.lua.v2.Lua
inline_code: |
function envoy_on_request(request_handle)
local mod = request_handle:headers():get("x-user-id-mod")
local current_post = request_handle:headers():get(":path")
if mod == 0 then
local replaced_post = "/green" .. current_post
request_handle:headers():replace(":path", replaced_post)
else
local replaced_post = "/blue" .. current_post
request_handle:headers():replace(":path", replaced_post)
end
end
function envoy_on_response(response_handle)
response_handle:headers():add("x-envoy-custom-header", 3333333333)
end
- name: envoy.router
typed_config: {}
clusters:
- name: envoy-api-blue-service
connect_timeout: 0.250s
type: static
load_assignment:
cluster_name: envoy-api-blue-service
endpoints:
lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 5000
- name: envoy-api-green-service
connect_timeout: 0.250s
type: static
load_assignment:
cluster_name: envoy-api-green-service
endpoints:
lb_endpoints:
- endpoint:
address:
socket_address:
address: 127.0.0.1
port_value: 4000
admin:
access_log_path: "/dev/stdout"
address:
socket_address:
address: 0.0.0.0
port_value: 8001