For Infinite Tracing, you can supply an optional proxy configuration if outbound traffic needs to flow through a proxy before reaching a trace observer. The language agents that support this are listed below.
Important
In order for a proxy to work with Infinite Tracing, it needs to support the HTTP/2 protocol rather than standard HTTP/1.1. Consult your proxy documentation to determine if this support is available.
Go
Specify the proxy address with the environment variables HTTP_PROXY, HTTPS_PROXY, and NO_PROXY (or their corresponding lowercase versions).
Java
The Java agent gRPC implementation automatically uses the standard JVM proxy properties as noted in the Java Networking Properties documentation. An example system property configuration may look like this:
-Dhttps.proxyHost=<proxy-host> -Dhttps.proxyPort=443If your application is already using a proxy, these properties may already be set, in which case gRPC should automatically route Infinite Tracing data through the proxy.
.NET
The proxy address can be specified by the GRPC_PROXY environment variable.
Node.js, PHP, Python, and Ruby
The proxy address can be specified by the environment variables GRPC_PROXY, HTTPS_PROXY and HTTP_PROXY. These variables are checked in order, and the first one that has a value is used.