Add mint tests into MinIO repo (#7886)

mint/preinstall.sh

@@ -0,0 +1,49 @@
+#!/bin/bash -e
+#
+#  Mint (C) 2017 Minio, Inc.
+#
+#  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.
+#
+
+export APT="apt --quiet --yes"
+export WGET="wget --quiet --no-check-certificate"
+
+# install nodejs source list
+if ! $WGET --output-document=- https://deb.nodesource.com/setup_6.x | bash -; then
+    echo "unable to set nodejs repository"
+    exit 1
+fi
+
+$APT install apt-transport-https
+
+wget -q https://packages.microsoft.com/config/ubuntu/16.04/packages-microsoft-prod.deb
+dpkg -i packages-microsoft-prod.deb
+rm -f packages-microsoft-prod.deb
+$APT install apt-transport-https
+$APT update
+
+# download and install golang
+GO_VERSION="1.12.5"
+GO_INSTALL_PATH="/usr/local"
+download_url="https://storage.googleapis.com/golang/go${GO_VERSION}.linux-amd64.tar.gz"
+if ! $WGET --output-document=- "$download_url" | tar -C "${GO_INSTALL_PATH}" -zxf -; then
+    echo "unable to install go$GO_VERSION"
+    exit 1
+fi
+
+xargs --arg-file=install-packages.list apt --quiet --yes install
+
+# set python 3.5 as default
+update-alternatives --install /usr/bin/python python /usr/bin/python3.5 1
+
+sync