Envoy日志格式
### 环境说明
##### Envoy Mesh使用的网络: 172.31.73.0/24
##### 10个Service:
- front-envoy：Front Proxy,地址为172.31.73.10
- 3个后端服务，仅是用于提供测试用的上游服务器
- service_blue
- service_red
- service_green
启动
docker-compose up# cat docker-compose.yaml
# Author: MageEdu <mage@magedu.com>
version: '3.3'
services:
front-envoy:
image: envoyproxy/envoy-alpine:v1.21-latest
environment:
- ENVOY_UID=0
- ENVOY_GID=0
volumes:
- ./front-envoy.yaml:/etc/envoy/envoy.yaml
networks:
envoymesh:
ipv4_address: 172.31.73.10
aliases:
- front-envoy
expose:
# Expose ports 80 (for general traffic) and 9901 (for the admin server)
- "80"
- "9901"
service_blue:
image: ikubernetes/servicemesh-app:latest
networks:
envoymesh:
aliases:
- colored
- blue
environment:
- SERVICE_NAME=blue
expose:
- "80"
service_green:
image: ikubernetes/servicemesh-app:latest
networks:
envoymesh:
aliases:
- colored
- green
environment:
- SERVICE_NAME=green
expose:
- "80"
service_red:
image: ikubernetes/servicemesh-app:latest
networks:
envoymesh:
aliases:
- colored
- red
environment:
- SERVICE_NAME=red
expose:
- "80"
networks:
envoymesh:
driver: bridge
ipam:
config:
- subnet: 172.31.73.0/24
# cat front-envoy.yaml
node:
id: front-envoy
cluster: mycluster
admin:
profile_path: /tmp/envoy.prof
access_log_path: /tmp/admin_access.log
address:
socket_address:
address: 0.0.0.0
port_value: 9901
layered_runtime:
layers:
- name: admin
admin_layer: {}
static_resources:
listeners:
- address:
socket_address:
address: 0.0.0.0
port_value: 80
name: listener_http
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
access_log:
- name: envoy.access_loggers.file
typed_config:
"@type": type.googleapis.com/envoy.extensions.access_loggers.file.v3.FileAccessLog
path: "/dev/stdout"
log_format:
#json_format: {"start": "[%START_TIME%] ", "method": "%REQ(:METHOD)%", "url": "%REQ(X-ENVOY-ORIGINAL-PATH?:PATH)%", "protocol": "%PROTOCOL%", "status": "%RESPONSE_CODE%", "respflags": "%RESPONSE_FLAGS%", "bytes-received": "%BYTES_RECEIVED%", "bytes-sent": "%BYTES_SENT%", "duration": "%DURATION%", "upstream-service-time": "%RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)%", "x-forwarded-for": "%REQ(X-FORWARDED-FOR)%", "user-agent": "%REQ(USER-AGENT)%", "request-id": "%REQ(X-REQUEST-ID)%", "authority": "%REQ(:AUTHORITY)%", "upstream-host": "%UPSTREAM_HOST%", "remote-ip": "%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT%"}
text_format: "[%START_TIME%] \"%REQ(:METHOD)% %REQ(X-ENVOY-ORIGINAL-PATH?:PATH)% %PROTOCOL%\" %RESPONSE_CODE% %RESPONSE_FLAGS% %BYTES_RECEIVED% %BYTES_SENT% %DURATION% %RESP(X-ENVOY-UPSTREAM-SERVICE-TIME)% \"%REQ(X-FORWARDED-FOR)%\" \"%REQ(USER-AGENT)%\" \"%REQ(X-REQUEST-ID)%\" \"%REQ(:AUTHORITY)%\" \"%UPSTREAM_HOST%\" \"%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT%\"\n"
stat_prefix: ingress_http
route_config:
name: local_route
virtual_hosts:
- name: vh_001
domains: ["*"]
routes:
- match:
prefix: "/"
route:
cluster: mycluster
http_filters:
- name: envoy.filters.http.router
clusters:
- name: mycluster
connect_timeout: 0.25s
type: STRICT_DNS
lb_policy: ROUND_ROBIN
load_assignment:
cluster_name: mycluster
endpoints:
- lb_endpoints:
- endpoint:
address:
socket_address:
address: colored
port_value: 80文本日志
先向Front-Envoy发起请求，以便生成访问日志；
curl 172.31.73.10/service/colors Hello from App behind Envoy (service blue)! hostname: d2ef1dfa1056 resolved hostname: 172.31.73.3
而后在docker-compose的控制台查看输出的访问日志，日志信息应该类似如下
JSON日志
停止docker-compose的服务后，修改日志配置，注释日志配置中的“text_format”配置行，并启用“json_format”配置行；
启动后访问
docker-compose up
curl 172.31.73.10/service/colors
