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AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi...
Transcript of AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi...
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Scaling TerraformFrom Startup to Enterprise
Paolo Tonin @ FlowingAWS Cloud Solution Architect
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#DOH19 2
Organizer & sponsors
GetLatestVersion.it
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Scaling Terraform
● Intro
● What is Terraform
● 4 Stages of Adoption
● Stage Next
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Scaling Terraform
● Intro
● What is Terraform
● 4 Stages of Adoption
● Stage Next
![Page 6: AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi automated Adopting Infrastructure As Code (also Dockerfiles) Machine images (also playbooks](https://reader034.fdocuments.net/reader034/viewer/2022042802/5f3ea3796f98ca42ea3ac87d/html5/thumbnails/6.jpg)
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From Infrastructure Services to multiple Cloud
Not IaaS services Cloud providerVirtualization and IaaS
Cloudflare
UltraDNS
Fastly
BitBucket
Datadog
(and more…)
Amazon
Google Cloud
Microsoft Azure
DigitalOcean
Alibaba Cloud
(and more…)
OpenStack
OpenNebula
VMware vCloud
Softlayer
Cloudstack
(and more…)
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Pro Cons
● Multiple Provider
● Low learning curve
● Declarative HCL language, not
procedural code
● Dry runs
● Infrastructure versioning
● Terraform Registry
● No rolling upgrades*
● HCL Limitations (logic, loops)*
● Not “Drift detection”*
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Scaling Terraform
● Intro
● What is Terraform
● 4 Stages of Adoption
○ Stage 1 Manual
○ Stage 2 Semi Automated
○ Stage 3
○ Stage 4
● Stage Next
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4 Stage of Adoption
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Stage 1
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Scaling Terraform - Stage 1 Manual
● Web Consoles / Manual CLI
● Single environment(s)
● Mutable Infrastructure (Pets server)
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Scaling Terraform - Stage 1 Manual
● Web Consoles / Manual CLI
● Single environment(s)
● Mutable Infrastructure (Pets server)
● “Infrastructure as Code”
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Scaling Terraform - Stage 1 Manual
● Web Consoles / Manual CLI
● Single environment(s)
● Mutable Infrastructure (Pets server)
● “Infrastructure as Code” ops.txt
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● ….
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● Not using any
Terraform is the
first step to using a
lot of Terraform
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Scaling Terraform - Stage 1 Manual
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
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Scaling Terraform - Stage 1 Manual
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
![Page 19: AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi automated Adopting Infrastructure As Code (also Dockerfiles) Machine images (also playbooks](https://reader034.fdocuments.net/reader034/viewer/2022042802/5f3ea3796f98ca42ea3ac87d/html5/thumbnails/19.jpg)
Scaling Terraform - Stage 1 Manual
● Intro
● What is Terraform
● 4 Stages of Adoption
○ Stage 1 Manual
○ Stage 2 Semi automated
○ Stage 3
○ Stage 4
● Stage Next
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Stage 2 - Semi automated
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Scaling Terraform - Stage 2 Semi automated
● Adopting Infrastructure As Code (also Dockerfiles)
● Machine images (also playbooks and others / Packer)
● Web Consoles
● Introduce Terraform!
○ Configuration!
○ Automation!
○ Iteration!
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Modeling Infrastructure with Configuration
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● Plan, Apply, Iterate
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Scaling Terraform - Stage 2 Semi automated
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
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Scaling Terraform - Stage 2 Semi automated
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
State management Operations
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Let’s “import” our infrastructure
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Scaling Terraform - Stage 2 Semi automated
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Scaling Terraform - Stage 2 Semi automated
$ cat ec2_instance.tf
resource "aws_instance" "prod_ec2" {
# ...instance configuration...
}
$ terraform import aws_instance.prod_ec2 i-abcd1234
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Scaling Terraform - Stage 2 Semi automated
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Scaling Terraform
● Intro
● What is Terraform
● 4 Stages of Adoption
○ Stage 1 Manual
○ Stage 2 Semi automated
○ Stage 3
○ Stage 4
● Stage Next
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Stage 3
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● Workspaces
● Packaged Components
● Modules
● Inputs and Outputs
● Config Mgmt Hooks
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Scaling Terraform - Stage 3
● Organizational adoption
● Multiple Environments
● Collaboration
● Version Control
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Scaling Terraform - Stage 3
● Organizational adoption
● Multiple Environments (Workspaces)
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Scaling Terraform - Stage 3
● Organizational adoption
● Multiple Environments (Workspaces)
$ terraform workspace new staging
You're now on a new, empty workspace. Workspaces isolate
their state, so if you run "terraform plan" Terraform
will not see any existing state for this configuration.
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Scaling Terraform - Stage 3
● Organizational adoption
● Multiple Environments (Workspaces) - separate state files
●resource "aws_instance" "example" {
count = "${terraform.workspace == "prod" ? 5 : 1}"
# … other params
}
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Scaling Terraform - Stage 3
● Organizational adoption
● Multiple Environments (Workspaces) - separate state filesresource "aws_vpc" "mycompany_vpc" {
name = "VPC ${terraform.workspace == "default" ?
“Prod” : “Staging”}"
# … other params
}
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● Workspaces
● Packaged Components
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Scaling Terraform - Stage 3
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● Workspaces
● Packaged Components
● Modules
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Scaling Terraform - Stage 3
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Scaling Terraform - Stage 3
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$ tree base-mod/
├── README.md
├── main.tf
└── variables.tf
└── outputs.tf
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● Version control (PR)
● Remote state
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Scaling Terraform - Stage 3
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
State management Operations
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Scaling Terraform - Stage 3
Technical Operational
Reproducibility Auditing
Change Management Consistency
Architecture Knowledge Sharing
State management Operations
![Page 51: AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi automated Adopting Infrastructure As Code (also Dockerfiles) Machine images (also playbooks](https://reader034.fdocuments.net/reader034/viewer/2022042802/5f3ea3796f98ca42ea3ac87d/html5/thumbnails/51.jpg)
Scaling Terraform - Stage 3
● Intro
● What is Terraform
● 4 Stages of Adoption
○ Stage 1 Manual
○ Stage 2 Semi automated
○ Stage 3
○ Stage 4
● Stage Next
![Page 52: AWS Cloud Solution Architect Paolo Tonin @ Flowing From ... · Scaling Terraform - Stage 2 Semi automated Adopting Infrastructure As Code (also Dockerfiles) Machine images (also playbooks](https://reader034.fdocuments.net/reader034/viewer/2022042802/5f3ea3796f98ca42ea3ac87d/html5/thumbnails/52.jpg)
Stage 4
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● VCS Integration
● Team permissions
● “Run Terraform for me”
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Developer“I need to create new VMs for my new env; but i don’t know yet how many”
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Operations“Ok, it’s not a problem!”
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Scaling Terraform - Stage 4
Operations
Create new Reservation (Scheduled Reserved or Convertible)
Create new IAM and assign permission for this RI
Restrict IAM Policy for using RI and EC2 family
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Scaling Terraform - Stage 4
Developers
Configure AWS CLI with IAM user
Create Terraform module for EC2 resources
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Terraform Enterprise
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Terraform Enterprise
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“Run Terraform for me”
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Scaling Terraform - Stage 4
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Scaling Terraform - Stage 4