Initial commit

Author: orlando

.gitignore

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+.env

README.md

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+# Terraform Intro
+
+This repo has many branches. Each branch represent an incremental
+terraform state. You can go through each branch an apply your changes
+(`terraform apply`) to see how that works
+
+## Usage
+
+We are going to use AWS for this. So you need to provide your access
+keys as environment variables. Check `env.sample` to see what variables
+are required.
+
+If you don't have an AWS account, you can create one (A credit card is
+required) at [aws.amazon.com](https://aws.amazon.com). This examples works
+under their free-tier plan. So it shouldn't cost you anything.
+
+Once you have your access keys for AWS, run this:
+
+```bash
+cp env.sample .env
+# replace your AWS access keys in the .env file you just created
+source .env
+```
+
+### Installing terraform
+
+If you are on OSX, you should have homebrew installed (if not installed
+it, you have been missing one of the best tools for devs in OSX)
+
+`brew install terraform`
+
+### Branches
+
+Once you reach this point, you should be able to run terraform commands
+without problems.
+
+In each branch you should run first `terraform plan` to see the changes,
+and then `terraform apply` to apply the changes.
+
+Once you are done running the examples, you can run `terraform destroy`
+to teardown the resources you created
+
+#### master
+* Creating a basic EC2 instance
+
+#### step2
+* Adding an ELB to that instance
+
+#### step3
+* Exposing instance type as a variable
+
+#### step4
+* Moving everything to a module
+
+#### step5
+* Adding documentation with [terraform-docs](https://github.com/segmentio/terraform-docs)

env.sample

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+export AWS_ACCESS_KEY_ID=
+export AWS_SECRET_ACCESS_KEY=
+export AWS_DEFAULT_REGION=us-east-1

main.tf

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+/*
+ * Resources
+ */
+data "aws_ami" "ubuntu" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["ubuntu/images/hvm-ssd/ubuntu-trusty-14.04-amd64-server-*"]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  owners = ["099720109477"] # Canonical
+}
+
+resource "aws_instance" "example" {
+  ami           = "${data.aws_ami.ubuntu.id}"
+  instance_type = "t2.nano"
+
+  tags {
+    Name = "Terraform Intro"
+  }
+}
+
+/*
+ * Outputs
+ */
+output "dns" {
+  value = "${aws_instance.example.public_dns}"
+}