Add prefix cache test to github actions

Author: rlakhtakia

.github/scripts/e2e/e2e-validate.sh

@@ -0,0 +1,132 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# -----------------------------------------------------------------------------
+# e2e-validate.sh — CI e2e Gateway smoke-test (chat + completion, 7 iterations)
+# By default we only test completion curls unless specifed to run chat.
+# -----------------------------------------------------------------------------
+
+show_help() {
+  cat <<EOF
+Usage: $(basename "$0") [OPTIONS]
+
+Options:
+  -n, --namespace NAMESPACE   Kubernetes namespace (default: llm-d)
+  -m, --model MODEL_ID        Model to query.
+  -c, --chatValidation        Enable chat validation testing.
+  -v, --verbose               Echo kubectl/curl commands before running
+  -h, --help                  Show this help and exit
+EOF
+  exit 0
+}
+
+# ── Defaults ────────────────────────────────────────────────────────────────
+NAMESPACE="igw-e2e"
+CLI_MODEL_ID=""
+VERBOSE=false
+TEST_CHAT=false
+
+# ── Flag parsing ────────────────────────────────────────────────────────────
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -n|--namespace)
+      if [[ -z "$2" ]]; then echo "Error: $1 requires a value." >&2; exit 1; fi
+      NAMESPACE="$2"; shift 2 ;;
+    -m|--model)
+      if [[ -z "$2" ]]; then echo "Error: $1 requires a value." >&2; exit 1; fi
+      CLI_MODEL_ID="$2"; shift 2 ;;
+    -c|--chatValidation)  TEST_CHAT=true; shift ;;
+    -v|--verbose)   VERBOSE=true; shift ;;
+    -h|--help)      show_help ;;
+    *) echo "Unknown option: $1"; show_help ;;
+  esac
+done
+
+if [[ "${VERBOSE}" == "true" ]]; then
+  set -x
+fi
+
+# ── Create a unique pod suffix ────────────────────────────────────────────
+gen_id() { echo $(( RANDOM % 10000 + 1 )); }
+
+# ── Discover Gateway address ────────────────────────────────────────────────
+HOST="${GATEWAY_HOST:-$(kubectl get gateway -n "$NAMESPACE" \
+          -o jsonpath='{.items[0].status.addresses[0].value}' 2>/dev/null || true)}"
+if [[ -z "$HOST" ]]; then
+  echo "Error: could not discover a Gateway address in namespace '$NAMESPACE'." >&2
+  exit 1
+fi
+PORT=80
+SVC_HOST="${HOST}:${PORT}"
+
+# ── Determine MODEL_ID ──────────────────────────────────────────────────────
+if [[ -n "$CLI_MODEL_ID" ]]; then
+  MODEL_ID="$CLI_MODEL_ID"
+elif [[ -n "${MODEL_ID-}" ]]; then
+  MODEL_ID="$MODEL_ID"
+else
+    echo "Error: Failed to find model id. Please specify one using the -m flag or the MODEL_ID environment variable." >&2
+    exit 1
+fi
+
+echo "Namespace: $NAMESPACE"
+echo "Inference Gateway:   ${SVC_HOST}"
+echo "Model ID:  $MODEL_ID"
+echo
+
+# ── Main test loop (10 iterations) ──────────────────────────────────────────
+for i in {1..7}; do
+  echo "=== Iteration $i of 10 ==="
+  failed=false
+
+  if [[ -n "$TEST_CHAT" ]]; then
+
+    # POST /v1/chat/completions
+    echo "1) POST /v1/chat/completions at ${SVC_HOST}"
+    chat_payload='{
+      "model":"'"$MODEL_ID"'",
+      "messages":[{"role":"user","content":"Hello!  Who are you?"}]
+    }'
+    ID=$(gen_id)
+
+    ret=0
+    output=$(kubectl run --rm -i curl-"$ID" \
+            --namespace "$NAMESPACE" \
+            --image=curlimages/curl --restart=Never \
+            --env "PAYLOAD=$chat_payload" -- \
+            sh -c 'sleep 1; curl -sS -X POST "http://'${SVC_HOST}'/v1/chat/completions" \
+                -H "accept: application/json" \
+                -H "Content-Type: application/json" \
+                -d "$PAYLOAD"') || ret=$?
+    echo "$output"
+    [[ $ret -ne 0 || "$output" != *'{'* ]] && {
+      echo "Error: POST /v1/chat/completions failed (exit $ret or no JSON)" >&2; failed=true; }
+    echo
+  fi
+
+  # POST /v1/completions
+  echo "2) POST /v1/completions at ${SVC_HOST}"
+  payload='{"model":"'"$MODEL_ID"'","prompt":"You are a helpful AI assistant."}'
+  ID=$(gen_id)
+
+  ret=0
+  output=$(kubectl run --rm -i curl-"$ID" \
+          --namespace "$NAMESPACE" \
+          --image=curlimages/curl --restart=Never \
+          --env "PAYLOAD=$payload" -- \
+          sh -c 'sleep 1; curl -sS -X POST "http://'${SVC_HOST}'/v1/completions" \
+               -H "accept: application/json" \
+               -H "Content-Type: application/json" \
+               -d "$PAYLOAD"') || ret=$?
+  echo "$output"
+  [[ $ret -ne 0 || "$output" != *'{'* ]] && {
+    echo "Error: POST /v1/completions failed (exit $ret or no JSON)" >&2; failed=true; }
+  echo
+
+  if $failed; then
+    echo "Iteration $i encountered errors; exiting." >&2
+    exit 1
+  fi
+done
+
+echo "✅ All 10 iterations succeeded."