F/baremetal bootstrap

baremetal-bootstrap

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+
+#---------------------------------------------------------------------
+usage ()
+{
+	cat <<EOT
+
+${0##*/}
+	A provisioning script for initializing a bare-metal server. This runs
+	from the the new machine, expects to have shell and sudo access, and
+	handles initial setup before handing off to \`bootstrap.sh\`. Installs
+	git, clones the specified repo and starts provisioning using the
+	specified APP_ENV value.
+
+Usage:
+	From the machine to be provisioned:
+
+	curl https://raw.githubusercontent.com/loadsys/CakePHP-Shell-Scripts/master/${0##*/} | bash -s -- <REPO_CLONE_URL> <GIT_BRANCH> <APP_ENV_VALUE>
+
+	Should be run as the user the app will run as on the target server.
+
+EOT
+
+	exit ${1:-0}  # Exit with code 0 unless an arg is passed to the method.
+}
+if [ "$1" = '-h' ]; then
+	usage
+fi
+
+
+# Set up working vars.
+REPO_CLONE_URL=${1}
+GIT_BRANCH=${2}
+APP_ENV=${3}
+INSTALL_DIR="/var/www"
+BOOTSTRAP_SCRIPT="./bootstrap.sh"
+
+
+# Validate input and environment.
+if [ -z "$REPO_CLONE_URL" ] ; then
+	echo "!! Must provide git repo URL as first arg (https recommended over git/ssh)."
+	exit 1
+fi
+
+if [ -z "$GIT_BRANCH" ] ; then
+	echo "!! Must provide desired git branch as second arg."
+	exit 2
+fi
+
+if [ -z "$APP_ENV" ] ; then
+	echo "!! Must provide desired APP_ENV as third arg."
+	exit 3
+fi
+
+if [ -d "${INSTALL_DIR}" ] && [ -n $(find "${INSTALL_DIR}" -maxdepth 0 -type d -empty 2>/dev/null) ]; then
+	echo "!! Installation directory is not empty. Aborting."
+	exit 4
+fi
+
+
+# main()
+
+if [ -z "$(which git)" ]; then
+	echo "## Installing git."
+	sudo apt-get -y update
+	sudo apt-get -y install git-core build-essential
+elif git --version 2>&1 >/dev/null | grep -q 'xcode-select'; then
+	echo "## Triggering Xcode Command Line Tools installation. Either complete"
+	echo "## that process or install git into your PATH yourself, then press"
+	echo "## [ENTER] to continue."
+	read WAIT_FOR_INSTALL_TO_FINISH
+	if [ ! -x /Library/Developer/CommandLineTools/usr/bin/git ]; then
+		echo "!! Git installation appears to have failed."
+		echo "!! Please manually install and retry. Aborting."
+		exit 5
+	fi
+else
+	echo "## Git appears to already be installed."
+fi
+
+# Alternative fully automated approach:
+# Ref: https://apple.stackexchange.com/a/121044/17403
+#
+# xcode-select --install
+# sleep 1
+# osascript <<EOD
+#   tell application "System Events"
+#     tell process "Install Command Line Developer Tools"
+#       keystroke return
+#       click button "Agree" of window "License Agreement"
+#     end tell
+#   end tell
+# EOD
+
+
+echo "## Cloning repo."
+git clone -b $GIT_BRANCH $REPO_CLONE_URL repo
+
+echo "## Moving repo into place."
+sudo mv repo "${INSTALL_DIR}"
+
+cd "${INSTALL_DIR}"
+
+if [ ! -x "${BOOTSTRAP_SCRIPT}" ] ; then
+	echo "!! Bootstrap script is not present. Exiting."
+	exit 6
+fi
+
+echo "## Executing bootstrap script."
+"${BOOTSTRAP_SCRIPT}" $APP_ENV