Add travis script for docs (#4974)

.travis.yml

@@ -12,6 +12,13 @@ notifications:
     on_failure: always
     on_success: never
 
+before_install:
+  - curl -fsSL https://get.docker.com | sh
+  - echo '{"experimental":"enabled"}' | sudo tee /etc/docker/daemon.json
+  - mkdir -p $HOME/.docker
+  - echo '{"experimental":"enabled"}' | sudo tee $HOME/.docker/config.json
+  - sudo service docker start
+
 # New secure variables can be added using travis encrypt -r kubernetes/ingress-nginx --add K=V
 env:
   global:

.travis/release-from-travis.sh

@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if ! [ -z $DEBUG ]; then
+	set -x
+fi
+
+set -o errexit
+set -o pipefail
+
+if [ "$TRAVIS_CI_TOKEN" == "" ];
+then
+	echo "Environment variable TRAVIS_CI_TOKEN is missing.";
+	exit 1;
+fi
+
+function publish() {
+
+body=$(cat <<EOF
+{
+  "request": {
+    "branch": "master",
+		"message": "Publishing image for component $2 to quay.io",
+    "config": {
+      "merge_mode": "deep_merge",
+			"env": {
+      	"matrix" : {
+        	"COMPONENT": "$2"
+       	}
+      }
+    }
+  }
+}
+EOF
+)
+
+	curl -s -X POST \
+		-H "Content-Type: application/json" \
+		-H "Accept: application/json" \
+		-H "Travis-API-Version: 3" \
+		-H "Authorization: token $1" \
+		--data "$body" \
+		https://api.travis-ci.org/repo/kubernetes%2Fingress-nginx/requests
+}
+
+case "$1" in
+	ingress-controller|nginx|docs)
+		publish $TRAVIS_CI_TOKEN $1
+	;;
+	*)
+		echo "Invalid publish option"
+		exit 1
+	;;
+esac