Add lampstack terraform scripts for workload test

Change-Id: Ibc4529b5a0ba6f0069090233eb3e3002f4801b8f

.gitignore

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+/onvm/conf/nodes.conf.yml
+/onvm/conf/ids.conf.yml
+/onvm/conf/hosts
+/onvm/lampstack/openrc
+*.out
+*/**/*.log
+*/**/.DS_Store
+*/**/._
+*/**/*.tfstate*

terraform/lampstack/README.md

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+# LAMPstack Terraform deployments
+
+## Status
+
+This will install a 3 node lampstack by defulat. Two nodes will be used as
+web servers and one node will be used as database node.
+
+Once the script finishes, a set of URL will be displayed at the end for
+verification.
+
+## Requirements
+
+- [Install Terraform](https://www.terraform.io/intro/getting-started/install.html)
+- Make sure there is an Ubuntu image available on your cloud.
+
+## Terraform
+
+Terraform will be used to provision all of the OpenStack resources required to
+LAMP stack and all required software.
+
+### Prep
+
+#### Deal with ssh keys for Openstack Authentication
+
+Ensure your local ssh-agent is running and your ssh key has been added.
+This step is required by the terraform provisioner. Otherwise, you will have
+to use a key pair without passphrase.
+
+```
+eval $(ssh-agent -s)
+ssh-add ~/.ssh/id_rsa
+
+```
+
+#### General Openstack Settings
+
+Terraform OpenStack provider requires few environment variables to be set
+before you can run the scripts. In general, you can simply export OS
+environment varialbes like the following:
+
+```
+export OS_REGION_NAME=RegionOne
+export OS_PROJECT_NAME=demo
+export OS_IDENTITY_API_VERSION=3
+export OS_PASSWORD=secret
+export OS_DOMAIN_NAME=default
+export OS_USERNAME=demo
+export OS_TENANT_NAME=demo
+export OS_PROJECT_DOMAIN_NAME=default
+export OS_AUTH_URL=http://9.30.217.9:5000/v3
+
+```
+
+The values of these variables should be provided by your cloud provider. When
+use keystone 2.0 API, you will not need to setup domain name.
+
+#### LAMP Stack Settings
+
+You most likely will need to specify the name of your Ubuntu `glance` image,
+flavor, lamp stack size (how many nodes in the stack), private and public
+network names, and keys. Here is the list of the default values defined in file
+vars_lampstack.tf.
+
+```
+image_name = "ubuntu-14.04"
+private_net = "internal"
+public_net = "external"
+flavor = "m1.medium"
+public_key_path = "~/.ssh/id_rsa.pub"
+stack_size = 3
+db_username = dbuser
+db_password = dbpass
+```
+
+You can change the settings in the file or you can simply set in environment
+variables like the following:
+
+```
+export TF_VAR_image_name="trusty 1404"
+export TF_VAR_private_net=Bluebox
+export TF_VAR_public_net=internet
+export TF_VAR_flavor="m1.small"
+export TF_VAR_public_key_path="~/.ssh/id_rsa.pub"
+export TF_VAR_stack_size=5
+export TF_VAR_db_username=george
+export TF_VAR_db_password=secret
+
+```
+
+## Provision the LAMP stack
+
+With all your OpenStack and TF vars set, you should be able to run
+`terraform apply`.  But lets check with `terraform plan` that things look
+correct first:
+
+
+```
+$ terraform plan
+Refreshing Terraform state prior to plan...
+...
+...
++ openstack_networking_floatingip_v2.database
+    address:   "<computed>"
+    fixed_ip:  "<computed>"
+    pool:      "internet"
+    port_id:   "<computed>"
+    region:    "RegionOne"
+    tenant_id: "<computed>"
+
+
+Plan: 8 to add, 0 to change, 0 to destroy.
+```
+
+If there is no errors showing,  we can go ahead and run
+
+```
+$ terraform apply
+...
+...
+Outputs:
+
+lampstack = Success!!!
+
+Access service at the following URLs:
+http://99.30.217.44
+http://99.30.217.42
+
+```
+
+The above results show that the LAMP Stack actually provisioned correctly
+and the LAMP application is up running and can be accessed by either of the
+urls.
+
+
+## Next Steps
+
+### Check its up
+
+Use the access urls to access the application. Since there are multiple web
+server nodes, any of the urls should work.
+
+```
+$ curl http://99.30.217.44
+$ curl http://99.30.217.42
+
+```
+
+## Cleanup
+
+Once you're done with it, don't forget to nuke the whole thing.
+
+```
+$ terraform destroy \
+Do you really want to destroy?
+  Terraform will delete all your managed infrastructure.
+  There is no undo. Only 'yes' will be accepted to confirm.
+
+  Enter a value: yes
+...
+...
+Apply complete! Resources: 0 added, 0 changed, 8 destroyed.
+```

terraform/lampstack/lampstack.tf

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+# The terraform to stand up LAMP stack
+
+resource "openstack_compute_keypair_v2" "lampstack_key" {
+  name = "lampstack_key"
+  public_key = "${file(var.public_key_path)}"
+}
+
+resource "openstack_compute_secgroup_v2" "lampstack_sg" {
+  name = "lampstack_sg"
+  description = "lampstack security group"
+  rule {
+    from_port = 22
+    to_port = 22
+    ip_protocol = "tcp"
+    cidr = "0.0.0.0/0"
+  }
+  rule {
+    from_port = 80
+    to_port = 80
+    ip_protocol = "tcp"
+    cidr = "0.0.0.0/0"
+  }
+  rule {
+    from_port = 3306
+    to_port = 3306
+    ip_protocol = "tcp"
+    cidr = "0.0.0.0/0"
+  }
+}
+
+resource "openstack_networking_floatingip_v2" "database" {
+  count = 1
+  pool = "${var.public_net}"
+}
+
+resource "openstack_compute_instance_v2" "database" {
+  name = "database"
+  image_name = "${var.image_name}"
+  flavor_name = "${var.flavor}"
+  key_pair = "lampstack_key"
+  security_groups = ["${openstack_compute_secgroup_v2.lampstack_sg.name}"]
+  network {
+    name = "${var.private_net}"
+  }
+  floating_ip = "${openstack_networking_floatingip_v2.database.0.address}"
+
+  connection {
+    user = "ubuntu"
+    timeout = "30s"
+  }
+
+  provisioner "file" {
+    source = "onvm"
+    destination = "/tmp/onvm"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "echo ${self.network.0.fixed_ip_v4} database > /tmp/onvm/hostname",
+      "chmod +x /tmp/onvm/scripts/*",
+      "/tmp/onvm/scripts/installdb.sh ${var.db_username} ${var.db_password}"
+    ]
+  }
+}
+
+resource "openstack_networking_floatingip_v2" "apache" {
+    count = "${var.stack_size - 1}"
+    pool = "${var.public_net}"
+}
+
+resource "openstack_compute_instance_v2" "apache" {
+  name = "apache_${count.index}"
+  count = "${var.stack_size - 1}"
+  image_name = "${var.image_name}"
+  flavor_name = "${var.flavor}"
+  key_pair = "lampstack_key"
+  security_groups = ["${openstack_compute_secgroup_v2.lampstack_sg.name}"]
+  network {
+    name = "${var.private_net}"
+  }
+  floating_ip = "${element(openstack_networking_floatingip_v2.apache.*.address, count.index)}"
+
+  depends_on = [ "openstack_compute_instance_v2.database" ]
+
+  connection {
+    user = "ubuntu"
+    timeout = "30s"
+  }
+
+  provisioner "file" {
+    source = "onvm"
+    destination = "/tmp/onvm"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "echo ${openstack_compute_instance_v2.database.network.0.fixed_ip_v4} database > /tmp/onvm/hostname",
+      "echo ${self.network.0.fixed_ip_v4} apache-${count.index} >> /tmp/onvm/hostname",
+      "chmod +x /tmp/onvm/scripts/*",
+      "/tmp/onvm/scripts/installapache.sh ${var.db_username} ${var.db_password}"
+    ]
+  }
+
+}
+
+output "lampstack" {
+    value = "Success!!!\n\nAccess service at the following URLs:\nhttp://${join("\nhttp://",openstack_compute_instance_v2.apache.*.floating_ip)}"
+}

terraform/lampstack/onvm/app/index.php

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+ <?php
+$servername = "database";
+$username = "TTTFFFdbuser";
+$password = "TTTFFFdbpass";
+$dbname = "decision2016";
+
+try {
+  $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
+  $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+  echo "Connected successfully";
+}
+catch(PDOException $e) {
+  echo "Connection failed: " . $e->getMessage();
+}
+?> 

terraform/lampstack/onvm/scripts/installapache.sh

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+#!/usr/bin/env bash
+# $1 db_username
+# $2 db_password
+
+cat /tmp/onvm/hostname | sudo tee -a /etc/hosts >/dev/null
+echo 'Installing apache2 and php 5...'
+sudo apt-get -qqy update
+sudo apt-get -qqy install apache2 php5 php5-mysql
+echo 'ServerName localhost' | sudo tee -a /etc/apache2/apache2.conf >/dev/null
+
+sudo mv /tmp/onvm/app/* /var/www/html
+sudo chown -R www-data:www-data /var/www/html
+sudo rm -r -f /var/www/html/index.html
+
+cmdStr=$(echo "s/TTTFFFdbuser/$1/g")
+sudo sed -i -e "${cmdStr}" /var/www/html/index.php
+
+cmdStr=$(echo "s/TTTFFFdbpass/$2/g")
+sudo sed -i -e "${cmdStr}" /var/www/html/index.php

terraform/lampstack/onvm/scripts/installdb.sh

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+#!/usr/bin/env bash 
+# $1 db_username
+# $2 db_password
+
+cat /tmp/onvm/hostname | sudo tee -a /etc/hosts >/dev/null
+pw=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 10 | head -n 1)
+sudo apt-get -qqy update
+sudo debconf-set-selections <<< "mysql-server mysql-server/root_password password $pw"
+sudo debconf-set-selections <<< "mysql-server mysql-server/root_password_again password $pw"
+sudo apt-get -qqy install mysql-server
+echo 'Creating a database...'
+
+mysql -uroot -p$pw -e "CREATE DATABASE decision2016;"
+mysql -uroot -p$pw -e "use decision2016; GRANT ALL PRIVILEGES ON decision2016.* TO '$1'@'localhost' IDENTIFIED BY '$2';"
+mysql -uroot -p$pw -e "use decision2016; GRANT ALL PRIVILEGES ON decision2016.* TO '$1'@'%' IDENTIFIED BY '$2';"
+mysql -uroot -p$pw -e "flush privileges"
+
+cmdStr=$(echo 's/127.0.0.1/database/g')
+sudo sed -i -e "${cmdStr}" /etc/mysql/my.cnf
+
+sudo service mysql restart

terraform/lampstack/vars_lampstack.tf

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+variable "image_name" {
+    default = "ubuntu-14.04"
+}
+
+variable "private_net" {
+    default = "internal"
+}
+
+variable "public_net" {
+    default = "external"
+}
+
+variable "flavor" {
+    default = "m1.medium"
+}
+
+variable "public_key_path" {
+  description = "The path of the ssh pub key"
+  default = "~/.ssh/id_rsa.pub"
+}
+
+variable "stack_size" {
+  default = 3
+}
+
+variable "db_username" {
+  description = "The lamp stack database user for remote access"
+  default = "dbuser"
+}
+
+variable "db_password" {
+  description = "The lamp stack database user password for remote access"
+  default = "dbpass"
+}