Add workload identy feature

tests/assert-workload-identity.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# shellcheck disable=SC2086
+set -e
+
+# Asserts the secrets loaded via Workload Identity.
+
+assert_env_equals() {
+  if [ "$(printenv $1)" != "$2" ]; then
+    echo -e "Expected $1 to be set to:\n$2\nBut got:\n$(printenv $1)"
+    exit 1
+  fi
+}
+
+assert_env_equals "ANOTHER_TEST" "anothertest123"
+assert_env_equals "SUPER_SECRET" "supersecret"
+assert_env_equals "TEST_SECRET" "thisisatest"