Initial gcloud setup.sh, not yet tested as metadata

etc/gcloud/setup.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# setup.sh
+# description: Install Inbucket on Google Cloud debian9 instance
+
+release="inbucket_1.2.0-rc2_linux_amd64"
+url="https://dl.bintray.com/content/jhillyerd/golang/${release}.tar.gz?direct"
+
+set -eo pipefail
+[ $TRACE ] && set -x
+
+# Prerequisites
+apt-get --yes update
+apt-get --yes install curl libcap2-bin
+id inbucket &>/dev/null || useradd -r -m inbucket
+
+# Extract
+cd /opt
+curl --location "$url" | tar xzvf - 
+ln -s "$release/" inbucket
+
+# Install
+cd /opt/inbucket/etc/ubuntu
+install -o inbucket -g inbucket -m 775 -d /var/opt/inbucket
+touch /var/log/inbucket.log
+chown inbucket: /var/log/inbucket.log
+install -o root -g root -m 644 inbucket.logrotate /etc/logrotate.d/inbucket
+install -o root -g root -m 644 inbucket.service /lib/systemd/system/inbucket.service
+install -o root -g root -m 644 ../unix-sample.conf /etc/opt/inbucket.conf
+
+# Setup
+setcap 'cap_net_bind_service=+ep' /opt/inbucket/inbucket
+systemctl enable inbucket.service
+systemctl start inbucket