Terraform-demos --> bit.ly/terraformclass
https://github.com/easyawslearn/Terraform-Tutorial
Terraform is an open-source infrastructure as code software tool created by HashiCorp. It enables users to define and provision a datacenter infrastructure using a high-level configuration language known as Hashicorp Configuration Language (HCL), or optionally JSON.
Terraform supports a number of cloud infrastructure providers such as Amazon Web Services, IBM Cloud, Google Cloud Platform, Linode, Microsoft Azure, Oracle Cloud Infrastructure, or VMware vSphere as well as OpenStack.
Docker provider:
https://www.terraform.io/docs/providers/docker/r/container.html
Aws Provider:
https://registry.terraform.io/providers/hashicorp/aws/latest/docs
Prerequests:
- Provision an ec2 instance
- Create a Role with Administrator access
- Attach this Role to Instance
sudo yum update -y
yum install wget -y
wget https://releases.hashicorp.com/terraform/0.11.13/terraform_0.11.13_linux_amd64.zip
unzip terraform_0.11.13_linux_amd64.zip
mv terraform /usr/bin
rm terraform_0.11.13_linux_amd64.zip
terraform -version
Class1 :
Agenda => Automatic provisioning of Ghost platform using Docker containers in Terraform
Docker + Terraform
Contents:
1. Downloading docker image
2. starting a container
3. changing images
4. outputs
5. Define Variables
6. Breaking out Variables
7. Lookups and maps {dev/prod}
8. workspaces
9. Null-resources and Local-exec
10. Modules
Class 2:
AWS + Terraform
Contents:
1. Creating a ec2_instance
2. Creating a Security_group
3. Creating a ec2_instance with Best_practises
4. Creating a Apache Webserver { bash_script as userdata }
5. Executing a Script on creation of EC2_Instance.
6. Terraform Workspaces
7. Creation and Deletion of Specific Resources using target
8. Data Sources
Commands used in this Class:
Creating a Workspace: terraform workspace new testing
List Workspaces: terraform workspace list
Switch to another Workspace: terraform workspace select testing
Initialising and Downlaoding all plugins : terraform init
terraform plan
terraform plan -target=aws_security_group.web -out=tfplan_dev
terraform apply tfplan_dev
terraform plan -target=aws_instance.web -out=tfplan_prod
terraform apply tfplan_prod --auto-approve
terraform destroy -target=aws_instance.web
terraform destroy -target=aws_security_group.web --auto-approve
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