Hello World!

#!/bin/bash # Copyright 2016 AT&T Intellectual Property, 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. # # What this is: Startup script for a 3-node web server composed of two server # nodes and a load balancer. # # Status: this is a work in progress, under test. # # How to use: # Intended to be invoked from vHello_3Node.sh # $ bash start.sh type params # type: type of VNF component [webserver|lb] # lb params: app1_ip app2_ip # app1_ip app2_ip: address of the web servers setup_webserver () { echo "$0: Setup website and dockerfile" mkdir ~/www mkdir ~/www/html # ref: https://hub.docker.com/_/nginx/ cat > ~/www/Dockerfile < ~/www/html/index.html < Hello World! Hello World!
Welcome to OPNFV @ $host!

EOM wget https://git.opnfv.org/cgit/ves/plain/tests/blueprints/tosca-vnfd-hello-ves/favicon.ico -O ~/www/html/favicon.ico echo "$0: Install docker" # Per https://docs.docker.com/engine/installation/linux/ubuntulinux/ # Per https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04 sudo apt-get install apt-transport-https ca-certificates sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" | sudo tee /etc/apt/sources.list.d/docker.list sudo apt-get update sudo apt-get purge lxc-docker sudo apt-get install -y linux-image-extra-$(uname -r) linux-image-extra-virtual sudo apt-get install -y docker-engine echo "$0: Get nginx container and start website in docker" # Per https://hub.docker.com/_/nginx/ sudo docker pull nginx cd ~/www sudo docker build -t vhello . sudo docker run --name vHello -d -p 80:80 vhello # Debug hints # id=$(sudo ls /var/lib/docker/containers) # sudo tail -f /var/lib/docker/containers/$id/$id-json.log \ } setup_lb () { echo "$0: setup load balancer" echo "$0: install dependencies" sudo apt-get update echo "$0: Setup iptables rules" echo "1" | sudo tee /proc/sys/net/ipv4/ip_forward sudo sysctl net.ipv4.ip_forward=1 sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -m state --state NEW -m statistic --mode nth --every 2 --packet 0 -j DNAT --to-destination $1:80 sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -m state --state NEW -m statistic --mode nth --every 2 --packet 0 -j DNAT --to-destination $2:80 sudo iptables -t nat -A POSTROUTING -j MASQUERADE # debug hints: list rules (sudo iptables -S -t nat), flush (sudo iptables -F -t nat) } setup_$1 $2 $3 exit 0