fix: ignore https mappings when no ssl certificate exists

This fixes issues where users may somehow add an https mapping but are missing an ssl certificate, causing nginx to not load properly. We now ignore the mapping and warn users of the misconfiguration.

Closes #5368

tests/unit/nginx-vhosts_8.bats

@@ -116,3 +116,27 @@ teardown() {
   echo "status: $status"
   assert_output_contains "45s;" 0
 }
+
+@test "(nginx-vhosts) nginx:build-config ignore bad https mapping" {
+  setup_test_tls
+  run deploy_app "dockerfile-noexpose"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Ignoring detected https port mapping without an accompanying ssl certificate" 0
+
+  teardown_test_tls
+  run /bin/bash -c "dokku proxy:report $TEST_APP --proxy-port-map"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "http:80:5000 https:443:5000"
+
+  run /bin/bash -c "dokku nginx:build-config $TEST_APP"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output_contains "Ignoring detected https port mapping without an accompanying ssl certificate" 1
+
+  run /bin/bash -c "dokku proxy:report $TEST_APP --proxy-port-map"
+  echo "output: $output"
+  echo "status: $status"
+  assert_output "http:80:5000 https:443:5000"
+}

tests/unit/test_helper.bash

@@ -366,6 +366,11 @@ setup_test_tls() {
   sudo chown -R dokku:dokku "${TLS}/.."
 }
 
+teardown_test_tls() {
+  local TLS="/home/dokku/$TEST_APP/tls"
+  rm -rf "$TLS"
+}
+
 custom_ssl_nginx_template() {
   local APP="$1"
   local APP_REPO_DIR="$2"