#IstioCon Using ECC Workload Certificates (pilot-agent environmental variables) Jacob Delgado / Aspen Mesh #IstioCon ECC workload certificates ● In various environments, the need for x509 certificates to use this feature ● Only ECDSA P-256 is supported #IstioCon pilot-agent environmental variables Disclaimer: Environmental variables and their use are considered experimental. There is no guarantee users must set the ECC_SIGNATURE_ALGORITHM environmental variable on sidecar ejection to ECDSA for use by pilot-agent ○ For gateways this environmental variable also must be set on installation/upgrade

./pilot/cmd/pilot-discovery go run ./pilot/cmd/pilot-agent #IstioCon Fully Local go run ./pilot/cmd/pilot-discovery go run ./pilot/cmd/pilot-agent + Fast! Bottleneck is go compilation time + Trivial Cluster Remote Istiod, local proxy go run ./pilot/cmd/pilot-agent #IstioCon Cluster Remote Istiod, local proxy go run ./pilot/cmd/pilot-agent + Rapid iteration - Very different from production environment

PILOT_SCOPE_GATEWAY_TO_NAMESPACE environment variable feature setting, which, if enabled, configures the pilot-agent such that “a gateway workload can only select gateway resources in the same namespace” and “Gateways applicable”;4 however, it is unclear how such a setting would be configured for the istio-ingressgateway pilot-agent and this would likely break standard Istio configurations from the Istio documentation which rely io/latest/docs/reference/config/networking/gateway/#Gateway 4https://istio.io/latest/docs/reference/commands/pilot-agent/ 11 | Google Istio Security Assessment Google / NCC Group Confidential func (ps *PushContext)

Istio Security Audit, 2023 tio/istio/blob/a7e57f 950edc9f06b29f977 d82fd8dfa9ae5f35b/ pilot/cmd/pilot-agent /status/server.go#L7 58 w.WriteHeader(http.StatusInternalServerError) } else { w.WriteHeader(http } https://github.com/is tio/istio/blob/a7e57f 950edc9f06b29f977 d82fd8dfa9ae5f35b/ pilot/cmd/pilot-agent /status/server.go#L4 99 if envoy != nil { envoy.Close() } if application != nil { application

istio-proxy container manifest lifecycle: postStart: exec: command: - pilot-agent - wait Fortunately, it is handled automatically since Istio 1.8 by setting the `holdAp

.....................................................................................3 a. Environmental Setup 2. Configurations................................................................... offers a way to create client TypeScript applications that can be integrated with Zoho CRM. Environmental Setup TypeScript SDK is installable through npm. npm is a tool for dependency management 2. The details of user1 are given in the variables user1, token1, environment1. 3. Similarly, the details of another user user2 are given in the variables user2, token2, environment2 4. Then

functions can find the relevant lock to change when // they are called. This way we avoid global variables. locks.user = mutex; locks.lock = lock_mutex; locks.unlock = unlock_mutex; // This is the main exception. } Since the fz_try macro is based on setjmp, the same conditions that apply to local variables in the presence of setjmp apply. Any locals written to inside the try block may be restored to their 6) 218 Chapter 8. Language Bindings MuPDF Documentation, Release 1.25.0 8.2.7 Runtime environmental variables All builds • MUPDF_mt_ctx Controls support for multi-threading on startup. – If set with

functions can find the relevant lock to change when // they are called. This way we avoid global variables. locks.user = mutex; locks.lock = lock_mutex; locks.unlock = unlock_mutex; // This is the main exception. } Since the fz_try macro is based on setjmp, the same conditions that apply to local variables in the presence of setjmp apply. Any locals written to inside the try block may be restored to their y1=1215.6) 7.1. The C++ MuPDF API 203 MuPDF Documentation, Release 1.24.0 7.1.7 Runtime environmental variables All builds • MUPDF_mt_ctx Controls support for multi-threading on startup. – If set with

functions can find the relevant lock to change when // they are called. This way we avoid global variables. locks.user = mutex; locks.lock = lock_mutex; locks.unlock = unlock_mutex; // This is the main exception. } Since the fz_try macro is based on setjmp, the same conditions that apply to local variables in the presence of setjmp apply. Any locals written to inside the try block may be restored to their const; These each generate text such as: (x0=90.51 y0=160.65 x1=501.39 y1=1215.6) 5.1.6 Environmental variables All builds • MUPDF_mt_ctx Controls support for multi-threading on startup. – If set with

functions can find the relevant lock to change when // they are called. This way we avoid global variables. locks.user = mutex; locks.lock = lock_mutex; locks.unlock = unlock_mutex; // This is the main exception. } Since the fz_try macro is based on setjmp, the same conditions that apply to local variables in the presence of setjmp apply. Any locals written to inside the try block may be restored to their const; These each generate text such as: (x0=90.51 y0=160.65 x1=501.39 y1=1215.6) 7.1.6 Environmental variables All builds • MUPDF_mt_ctx Controls support for multi-threading on startup. – If set with