fix: Make the JSONRPC and gRPC URLs used for TCK testing configurable (#239)

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Author: fjuma

.github/workflows/run-tck.yml

@@ -15,6 +15,10 @@ env:
   TCK_VERSION: 0.3.0.alpha
   # Tells uv to not need a venv, and instead use system
   UV_SYSTEM_PYTHON: 1
+  # SUT_JSONRPC_URL to use for the TCK
+  SUT_JSONRPC_URL: http://localhost:9999
+  # SUT_GRPC_URL to use for the TCK
+  SUT_GRPC_URL: http://localhost:9000
 
 # Only run the latest job
 concurrency:
@@ -57,7 +61,7 @@ jobs:
         working-directory: tck
       - name: Wait for SUT to start
         run: |
-          URL="http://localhost:9999/.well-known/agent-card.json"
+          URL="${{ env.SUT_JSONRPC_URL }}/.well-known/agent-card.json"
           EXPECTED_STATUS=200
           TIMEOUT=120
           RETRY_INTERVAL=2
@@ -91,5 +95,5 @@ jobs:
           
       - name: Run TCK
         run: |
-          ./run_tck.py --sut-url http://localhost:9999 --category all --compliance-report report.json
+          ./run_tck.py --sut-url ${{ env.SUT_JSONRPC_URL }} --category all --transports jsonrpc,grpc --compliance-report report.json
         working-directory: tck/a2a-tck

tck/src/main/java/io/a2a/tck/server/AgentCardProducer.java

@@ -20,10 +20,12 @@ public class AgentCardProducer {
     @Produces
     @PublicAgentCard
     public AgentCard agentCard() {
+        String sutJsonRpcUrl = getEnvOrDefault("SUT_JSONRPC_URL", "http://localhost:9999");
+        String sutGrpcUrl = getEnvOrDefault("SUT_GRPC_URL", "http://localhost:9000");
         return new AgentCard.Builder()
                 .name("Hello World Agent")
                 .description("Just a hello world agent")
-                .url("http://localhost:9999")
+                .url(sutJsonRpcUrl)
                 .version("1.0.0")
                 .documentationUrl("http://example.com/docs")
                 .capabilities(new AgentCapabilities.Builder()
@@ -42,9 +44,14 @@ public AgentCard agentCard() {
                                 .build()))
                 .protocolVersion("0.3.0")
                 .additionalInterfaces(List.of(
-                        new AgentInterface(TransportProtocol.JSONRPC.asString(), "http://localhost:9999"),
-                        new AgentInterface(TransportProtocol.GRPC.asString(), "http://localhost:9000")))
+                        new AgentInterface(TransportProtocol.JSONRPC.asString(), sutJsonRpcUrl),
+                        new AgentInterface(TransportProtocol.GRPC.asString(), sutGrpcUrl)))
                 .build();
     }
+
+    private static String getEnvOrDefault(String envVar, String defaultValue) {
+        String value = System.getenv(envVar);
+        return value == null || value.isBlank() ? defaultValue : value;
+    }
 }