or/pkg/helm/urlfetcher.go#L89 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 func (f *URLFetcher) Fetch() error { if _, _, err := URLToDirname(f.url); err != nil { return err } saved, err := DownloadTo(f.url 106 107 108 109 110 111 112 113 114 115 116 117 118 func DownloadTo(srcURL, dest string) (string, error) { u, err := url.Parse(srcURL) if err != nil { return "", fmt.Errorf("invalid chart URL: %s", srcURL) 70 71 72 73 74 75 76 77 78 79 80 81 82 83 func Extract(gzipStream io.Reader, destination string) error { uncompressedStream, err := gzip.NewReader(gzipStream) if err != nil { return fmt.Errorf("create

but appears to be designed to provide support to security problems after they happen or guidance on error messages. This is a great goal and should continue to expand upon it. Consider whether this could "http://$GATEWAY/productpage" curl -v "http://$GATEWAY/login" 10. Observe that the first command now returns a 404 error and the second command returns a redirect to http://www.nccgroup.com/. Recommendation Within the Assessment Google / NCC Group Confidential func (ps *PushContext) initGateways(env *Environment) error { gatewayConfigs, err := env.List(gvk.Gateway, NamespaceAll) if err != nil { return err } sortC

automatically redirected to the new page instead of seeing an error page Happy Googlebot: I don’t have to crawl 2 URLs I don’t see an error page Happy SEO specialist: My new URLs get SEO popularity from

Interface/method/attachment ○ ... ● Fault Injection with application layer error codes ○ HTTP status code ○ Redis Get error ○ ... ● Observability with application layer metrics ○ HTTP status code

spreads across the whole mesh ■ Any misconfiguration spread too, be it intentional or not Humans are error-prone, both users and operators are humans so: Errors will happen, with a large blast radius! 40 these labels ○ Because we all want fancy Traffic Shifting features! ● Then you try to update, and: Error: .LabelSelectorRequirement(nil)}: field is immutable (Since k8s 1.16) 49 Label selector updates

by sidecar. Challenge & Future Works Challenge ● Client egress communication sometime got 503 error (Istio #26990). This is fixed by adding retry mechanism in the Virtual Service object. Future Works

Istio-proxy log showed in kibana after parse #IstioCon Excellent Observability - Access logs API Error In last 30 days #IstioCon Thank you! WeChat: johnzhengaz Github: johnzheng1975