note.txt

Excerpt From
Deployment from Scratch
Josef Strzibny
This material may be protected by copyright.

tiger_final.sh

#!/bin/bash
USER=root
SERVER=$SERVER
PORT=22
SSH_KEY=$SSH_KEY
SSH_OPTIONS="-i $SSH_KEY -o StrictHostKeyChecking=no"
SSH_ARGS="$USER@$SERVER -p $PORT $SSH_OPTIONS"

fail () {
	echo $1
	exit 1
}

# Check if SERVER is set
if [ -z "$SERVER" ]; then
    fail "SERVER key is not set. Aborting script."
fi

# Check if SSH_KEY is set
if [ -z "$SSH_KEY" ]; then
    fail "SSH key is not set. Aborting script."
fi

ssh $SSH_ARGS 'bash -s' <<-STDIN || fail "installation failed"
	set -euo pipefail
	apt-get install -y nginx
STDIN

DIR=`dirname "$(readlink -f "$0")"`

if [ -e $DIR/index.html ]; then
	scp $SCP_ARGS $DIR/index.html \
	  $USER@$SERVER:/var/www/html/index.html || \
	  fail "scp failed"
else
	echo "index.html does not exist!"
	exit 1
fi

ssh $SSH_ARGS 'bash -s' <<-STDIN || fail "restart nginx failed"
  set -euo pipefail
  systemctl restart nginx.service
STDIN

tiger_v1.sh

USER=root
SERVER=$SERVER
PORT=22
SSH_KEY=$SSH_KEY
SSH_OPTIONS="-i $SSH_KEY -o StrictHostKeyChecking=no"
SSH_ARGS="$USER@$SERVER -p $PORT $SSH_OPTIONS"

ssh $SSH_ARGS 'bash -s' <<-STDIN
	apt-get install -y nginx

	cat /etc/nginx/sites-available/default | grep root

	> /var/www/html/index.html

	cat <<-TEXT | tee /var/www/html/index.html
		<h1>Tiger</h1>
		<p>
		  Hey hey, my name is Tiger.
		</p>
	TEXT

	systemctl restart nginx.service
STDIN