default, Knative does not enable service mesh, it uses Istio as an Ingress Gateway. • Enable Secret Discovery Service (SDS) to monitor and mount secrets under istio-system to ingress gateway which contains o Istiod MEM bumped with large numbers of Knative Services (#25532) Mem usage optimization of pilot resolved this issue. • Tune CPU/MEM to ensure enough capacity Leveraged Metrics to monitor Istio Istiod. o From envoy logs, transient 503 UH "no healthy upstream" errors. o From Grafana dashboard, Pilot Pushes shows long latencies. • Detect and analyze Istio scalability issue #IstioCon o Radom peaks

Mesh ○ An architectural pattern to implement common Security, Observability, Service Routing & Discovery functions as features of the infrastructure - ○ Functions: TLS Termination, Traffic Management sidecar Envoys ○ Measure Config convergence time ■ Time taken by all sidecars to get config from Pilot without any errors ■ For thousands of services & endpoints ■ With different churn rates of Pods time from single Pilot instance to 0 - 3,000 sidecars < 1 second ○ Pilot CPU & memory within acceptable limits: < 10 cores, 25 GB memory ○ Pilot can scale horizontally ● Need to tune PILOT_DEBOUNCE_AFTER

services (Pilot, Mixer, CA) accessible from the VMs ○ (optional) Kubernetes DNS server accessible from the VMs ● Onboard steps ○ Setup Internal Load Balancers (ILBs) for Kube DNS, Pilot, Mixer and Basic schedule unit Pod WorkloadEntry Component Deployment WorkloadGroup Service registry and discovery Service ServiceEntry K8s Pods labels: app: foo class: pod ServiceEntry selector: app: foo Istio CNF: Option 3 ● Further performance concerns #IstioCon End-to-end Key Protection ● SDS (Secret Discovery Service) ● A stricter security model ○ Protections for inline components & workflows ○ Trust

and can view the resulting calculations for the loan-repayment amount or the interest rate. • Data Pilot: Enables you to compare, combine and arrange large amounts of data. It helps you pull in raw data databases, cross-tabulate, summarise and convert the data into meaningful information. You can use Data Pilot to create interactive tables, which allows the data to be frequently arranged, rearranged or summarised

telemetry ● New extension capabilities ○ WebAssembly (Wasm) support ● Secure by default ○ Secret Discovery Service (SDS) ○ Auto mTLS ● API and feature promotion ○ Networking/Security APIs ○ Virtual Machine (Wasm) enhancements ○ APIs for adding custom Wasm extensions ○ Focus on Developer workflow ○ Discovery of Wasm extensions ● External AuthZ extensions ● Telemetry provider extension APIs https://istio

ting-INSTALLED_APPS], by trying to import their cms_app module. When CMS_APPHOOKS is set, auto-discovery is disabled. Example: Internationalisation and localisation (I18N and L10N) CMS_LANGUAGES default wizard_pool.WizardPool get_entries() Returns all entries in weight-order. NOTE: This method triggers pool discovery. get_entry(entry) Returns the wizard from the pool identified by «entry», which may be a Wizard NOTE: This method triggers pool discovery. is_registered(entry, **kwargs) Returns True if the provided entry is registered. NOTE: This method triggers pool discovery unless a «passive» kwarg is set to