e2e.sh: ensure vSphere connectivity is up

Author: chrischdi

hack/e2e.sh

@@ -137,6 +137,24 @@ if [[ "${GOVC_URL:-}" == "10.2.224.4" ]]; then
   E2E_CONF_OVERRIDE_FILE="$(pwd)/test/e2e/config/config-overrides-mirror-prow.yaml"
 fi
 
+# Ensure vSphere is reachable
+function wait_for_vsphere_reachable() {
+  local n=0
+  until [ $n -ge 30 ]; do
+    curl "https://${VSPHERE_SERVER}" --connect-timeout 2 -k && RET=$? || RET=$?
+    if [[ "$RET" -eq 0 ]]; then
+      break
+    fi
+    n=$((n + 1))
+    sleep 1
+  done
+  return "$RET"
+}
+# Only run the boskos/check for IPAM when we need them (not for vcsim)
+if [[ ! "${GINKGO_FOCUS:-}" =~ $RE_VCSIM ]]; then
+  wait_for_vsphere_reachable
+fi
+
 # Make tests run in-parallel
 export GINKGO_NODES=5