fix: envoy proxy health check (#1001)

* fix: envoy proxy health check

* chore: add changeset

Author: erikburt

.changeset/warm-bikes-shave.md

@@ -0,0 +1,5 @@
+---
+"setup-gap": patch
+---
+
+fix: health check for K8s API when enabled

actions/setup-gap/action.yml

@@ -360,29 +360,18 @@ runs:
 
           echo "Checking if the ${name} proxy is up and running on [https://localhost:${port}]"
           for attempt in {1..10}; do
-            # Get the status code using curl
-            status_code=$(curl --silent --cacert "${PATH_CERTS_DIR}/ca.crt" \
-                          -o /dev/null -w "%{http_code}" https://localhost:${port})
-
-            echo "Attempt ${attempt}/10: Status code: ${status_code}"
-
-            if [[ $status_code -eq 200 ]]; then
-              echo "${name} proxy is up, and the HTTPS connection is successful with status code 200."
+            # Check if we can establish a connection to the proxy
+            if curl --silent --max-time 5 --cacert "${PATH_CERTS_DIR}/ca.crt" \
+                -o /dev/null https://localhost:${port}/ 2>/dev/null; then
+              echo "${name} proxy is up, TLS connection established with valid certificate!"
               return 0
-            elif [[ $status_code -ne 000 ]]; then
-              echo "WARNING: ${name} proxy returned non-200 status code: ${status_code}"
-              if [[ $attempt -eq 10 ]]; then
-                echo "::error:: ${name} proxy is responding but with unexpected status code: ${status_code}"
-                return 1
-              fi
-              sleep 3
             else
               echo "Waiting for the ${name} proxy to start... Attempt ${attempt}/10"
               sleep 3
             fi
           done
 
-          echo "Timed out waiting for the ${name} proxy to start."
+          echo "::error::Timed out waiting for the ${name} proxy to start. Connection could not be established."
           return 1
         }
 

actions/setup-gap/envoy.yaml.gotmpl

@@ -149,7 +149,7 @@ static_resources:
                       domains: ["localhost", "127.0.0.1", "localhost:{{ getenv "DYNAMIC_PROXY_PORT" }}", "127.0.0.1:{{ getenv "DYNAMIC_PROXY_PORT" }}"]
                       routes:
                         - match:
-                            prefix: /
+                            prefix: '/'
                           direct_response:
                             status: 200
                             body:
@@ -272,7 +272,7 @@ static_resources:
                       domains: [ "localhost", "127.0.0.1", "localhost:{{ getenv "WEBSOCKETS_PROXY_PORT" }}", "127.0.0.1:{{ getenv "WEBSOCKETS_PROXY_PORT" }}"]
                       routes:
                         - match:
-                            prefix: /
+                            prefix: '/'
                           direct_response:
                             status: 200
                             body: