More examples

Roll out one individual instance

In our Terraform Repo example you will find an example description of how to deploy a single instance.

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Variables

Before you fire your “terraform apply”, make sure that you change the following variables in variables.tf or create a *.tfvars and set the values for yourself:

• keypair_name - replace this with the name of your key pair
• private_network_name - replace it with the name of your project network

Optional changes:

• image (name) - the name of the operating system image you wish to use
• flavor (name) - the name of the flavor (instance size) you want to use

Single instance with cloud-init

This example describes how an instance can be deployed with the help of cloud-init.

SOURCE

Variables

Before you fire your “terraform apply”, make sure that you change the following variables in variables.tf or create a *.tfvars and set the values for yourself:

• keypair_name - replace this with the name of your key pair
• private_network_name - replace it with the name of your project network

Optional changes:

• image (name) - the name of the operating system image you wish to use
• flavor (name) - the name of the flavor (instance size) you want to use

cloud-init

The example performs an update, installs an nginx web server, changes the title in the default page and performs a restart.

Further information on using cloud-init can be found in the examples in the official documentation.

cloud-init Documentation: Examples of the cloud configuration

Deploy multiple instances behind one LB

In this example, we deploy a certain number of servers that are made accessible with a load balancer.

SOURCE

Variables

Before you fire your “terraform apply”, make sure that you change the following variables in variables.tf or create a *.tfvars and set the values for yourself:

• keypair_name - replace this with the name of your key pair
• private_network_name - replace this with the name of your project network
• private_subnet_name - replace it with the name of the subnet in your project network

Optional changes:

• image (name) - the name of the operating system image you wish to use
• flavor (name) - the name of the flavor (instance size) you want to use
• server_count - the number of web servers you want to create (default: 2)

You can also change the variables via cli as in:

terraform plan -var "server_count=5"

terraform apply -var "server_count=5"

cloud-init

The example performs an update, installs an nginx web server, changes the title in the default page and adds the hostname and performs a restart. It will take a few moments until it is ready after terraform has reported a successful installation.

Further information on using cloud-init can be found in the examples in the official documentation.

cloud-init Documentation: Examples of the cloud configuration