again with notes that it should be replaced by a DNS-based secure signing method. So the updated change log notes: “Despite the naming, in Istio 1.5 when controlPlaneSecurityEnabled is set to false, communication sha1.Sum(buf) if sha == h.latestSHA && h.list != nil { // the list hasn't changed since last time h.log.Infof("Fetched list is unchanged") h.resetPurgeTimer() return } • istio/istio/mixer/pkg/runtime/handler/signature bytes.TrimSpace(chunk) if len(chunk) == 0 { continue } r, err := ParseChunk(chunk) if err != nil { log.Errorf("Error processing %s[%d]: %v", path, i, err) continue } if r == nil { continue } resources

http_in spector http_connecti on_manager … router upstream conn pool codec codec metadata_ex change iptables http/1.x h2c cluster L7过滤 L4过滤 监听过滤 下游 连接 上游 连接 outbound • APP发出的请求被iptables拦截， on_manager … router upstream conn pool codec codec backend http/1.x h2c iptables metadata_ex change 监听过滤 L7过滤 L4过滤 下游 连接 上游 连接 cluster inbound • 目标POD收到从网络进入的流量，通过iptables拦截后判断为inbound并DNA 00 4000.00 6000.00 8000.00 10000.00 12000.00 14000.00 16000.00 1 2 3 4 5 6 7 8 9 10 QPS LOG(连接数)2 默认连接策略与增强连接策略平均 QPS对比 默认连接策略平均qps 增强连接策略平均qps 1.01 1.31 1.99 3.70 5.22 8.57 17.82 28

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 import ( "bytes" "context" "crypto/tls" "fmt" "io" "log" "net/http" "os" "os/signal" "time" byteSize "github.com/inhies/go-bytesize" "istio.io/istio/pkg/backoff" if err = srv.ListenAndServe(); err != nil && err != http.ErrServerClosed { log.Fatalf("listen:%+s\n", err) } }() log.Printf("server started") d, err := time.ParseDuration("20s") if err != nil { fmt.Println("Fetching") f.Fetch(context.Background(), "http://localhost:6969", true) <-ctx.Done() log.Printf("server stopped") ctxShutDown, cancel := context.WithTimeout(context.Background(), 5*time

hundreds of proxies running ● Proxies are OOM Killed every X minutes since they cannot handle the change frequency ● Proxies are heavily CPU throttling and consuming CPU without traffic ● Envoy configuration 39 Guardrails for Istio Stabilizing Istio ○ The service mesh is common to all users ○ Any change to it spreads across the whole mesh ■ Any misconfiguration spread too, be it intentional or not All HTTP requests are retried twice! The other even better surprise is: You cannot disable it or change it! 53 Istio default retry policy Adopting Istio So you’re stuck with adding a RetryPolicy for

in a configurable set of formats #IstioCon Excellent Observability - Access logs Log Files Parse Istio-proxy Log • Each API Access Count • Each API Fail Rate • Each API Latency Easy to debug Easy report Easy to alert Elastalert #IstioCon Excellent Observability - Access logs Istio-proxy log showed in kibana after parse #IstioCon Excellent Observability - Access logs API Error In last

manage source of truth for mesh policies. Audit log Cluster security Edge security Workload security Operation security 3. Monitor audit log. 3 Lifecycle of service mesh security and demo Lifecycle of service mesh security Edge Cluster Workload Operation GitOps Gatekeeper RBAC Audit log Metrics Security testing tools Security dashboard Prometheus Kiali Security Lifecycle Concepts

same client is forwarded to the same backend 2. Security Policy: set white/black list 3. Access log & Stats 4. Specific scenarios like SIP Trunking #IstioCon Common Ways to Preserve Original Src Addr

provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice. Thank You. Istio & Kubernetes 在Google：Managed Istio

provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice. Thank You.

Troubleshooting 在ASM中开启 wasm能力 确认Workload部 署变更生效 1.可以登录到proxy container进行查看 wasm filter是否挂载成功 2.调整wasm log level： curl -X POST http://localhost:15000/logging?wasm=debug #IstioCon Thank you!