Tests: small ipv6 fixes (knative#2923)

* Tests: small ipv6 fixes

* Testing gitlab instance listens on ipv6
* Testing Contour installation prefers dualstack

Signed-off-by: Matej Vašek <[email protected]>

* fixup: listen explicitly on 0.0.0.0

Usually listening on '::' should also listen on 0.0.0.0.
However gitlab or nginx apparently employ IPV6_V6ONLY option so '::'
listens only on '::'.

Signed-off-by: Matej Vašek <[email protected]>

---------

Signed-off-by: Matej Vašek <[email protected]>

Author: matejvasek

hack/allocate.sh

@@ -180,6 +180,9 @@ networking() {
     --type merge \
     --patch '{"data":{"ingress-class":"contour.ingress.networking.knative.dev"}}'
 
+  echo "Patching contour to prefer duals-tack"
+  kubectl patch -n contour-external svc/envoy --type merge --patch '{"spec":{"ipFamilyPolicy":"PreferDualStack"}}'
+
   $KUBECTL wait pod --for=condition=Ready -l '!job-name' -n contour-external --timeout=10m
   $KUBECTL wait pod --for=condition=Ready -l '!job-name' -n knative-serving --timeout=10m
   echo "${green}✅ Ingress${reset}"

hack/install-gitlab.sh

@@ -70,6 +70,7 @@ spec:
         - name: GITLAB_OMNIBUS_CONFIG
           value: |
             external_url 'http://${gitlab_host}'
+            nginx['listen_addresses'] = ["0.0.0.0", "[::]"]
             gitlab_rails['gitlab_shell_ssh_port'] = 30022
             gitlab_rails['gitlab_email_enabled'] = false
             puma['worker_processes'] = 0