istio代理接口503报错排查分析

获取istio-proxy所有配置

kubectl -n test exec auhss-v1-769dc687ff-479r4 -c istio-proxy -- curl http://localhost:15000/config_dump > test.json

配置istio-proxy日志级别为debug

# -n 名空间
# server-v1-6dfd6b9846-c2ch6 容器名
kubectl -n mgec  exec server-v1-6dfd6b9846-c2ch6  -c istio-proxy -- curl -XPOST -s -o /dev/null http://localhost:15000/logging?level=debug
# 通过pod注解方式设置日志级别
template:
    metadata:
      annotations:
        sidecar.istio.io/logLevel: debug

查看Prometheus收集的istio指标

istio_requests_total{response_flags="UC", response_code="503", reporter="destination"}