Understanding Infrastructure as Code with Terraform

Transcript

2. Copyright © 2020 HashiCorp Understanding Infrastructure as Code with Terraform
3. Agenda
4. Agenda Infrastructure as Code what is it?
5. Agenda Infrastructure as Code what is it? Introduction to Terraform putting the pieces together
6. Agenda Infrastructure as Code what is it? Introduction to Terraform putting the pieces together Terraform Lifecycle and State expanding your knowledge
7. Infrastructure as Code
8. Infrastructure
9. Infrastructure as Code
10. Infrastructure as Code ▪ executable documentation
11. Infrastructure as Code ▪ executable documentation ▪ enables collaboration
12. Infrastructure as Code ▪ executable documentation ▪ enables collaboration ▪ safe and predictable
14. HashiCorp Configuration Language
15. HashiCorp Configuration Language
16. HashiCorp Configuration Language CODE EDITOR
17. HashiCorp Configuration Language CODE EDITOR service { key = "value" }
18. HashiCorp Configuration Language CODE EDITOR service { key = "value" }
19. HashiCorp Configuration Language CODE EDITOR
20. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { }
21. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { }
22. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" }
23. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } }
24. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } }
25. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } }
26. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } }
27. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } }
28. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { }
29. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
30. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
31. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
32. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
33. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
34. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:${var.port}" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
35. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:${var.port}" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
38. Introducing Terraform
40. Terraform
41. Terraform 125+ Official Providers AWS, GCP, OpenNebula, etc.
42. Terraform 125+ Official Providers AWS, GCP, OpenNebula, etc. 175+ Community Providers Auth0, Domino’s Pizza etc.
43. First Steps
44. Command: terraform init TERMINAL >
45. Command: terraform init TERMINAL > terraform init
46. Command: terraform init TERMINAL > terraform init Initializing the backend... Initializing provider plugins... - Checking for available provider plugins... - Downloading plugin for provider "aws" (terraform-providers/aws) 2.65.0...
47. Command: terraform init TERMINAL > terraform init Initializing the backend... Initializing provider plugins... - Checking for available provider plugins... - Downloading plugin for provider "aws" (terraform-providers/aws) 2.65.0... Terraform has been successfully initialized! You may now begin working with Terraform. Try running "terraform plan" to see any changes that are required for your infrastructure. All Terraform commands should now work. If you ever set or change modules or backend configuration for Terraform, rerun this command to reinitialize your working directory. If you forget, other commands will detect it and remind you to do so if necessary.
48. Command: terraform plan TERMINAL >
49. Command: terraform plan TERMINAL > terraform plan -out="aws.tfplan"
50. Command: terraform plan TERMINAL > terraform plan -out="aws.tfplan" Terraform will perform the following actions: # aws_instance.open_nebula will be created + resource "aws_instance" "open_nebula" Plan: 1 to add, 0 to change, 0 to destroy. This plan was saved to: aws.tfplan
51. Command: terraform plan TERMINAL > terraform plan -out="aws.tfplan" Terraform will perform the following actions: # aws_instance.open_nebula will be created + resource "aws_instance" "open_nebula" Plan: 1 to add, 0 to change, 0 to destroy. This plan was saved to: aws.tfplan
52. Command: terraform apply TERMINAL > terraform apply "aws.tfplan"
53. Command: terraform apply TERMINAL > terraform apply "aws.tfplan" aws_instance.open_nebula: Creating...
54. Command: terraform apply TERMINAL > terraform apply "aws.tfplan" aws_instance.open_nebula: Creating... aws_instance.open_nebula: Still creating... [10s elapsed]
55. Command: terraform apply TERMINAL > terraform apply "aws.tfplan" aws_instance.open_nebula: Creating... aws_instance.open_nebula: Still creating... [10s elapsed] aws_instance.open_nebula: Still creating... [20s elapsed] aws_instance.open_nebula: Creation complete after 22s Apply complete! Resources: 1 added, 0 changed, 0 destroyed.
56. Command: terraform output TERMINAL >
57. Command: terraform output TERMINAL > terraform output
58. Command: terraform output TERMINAL > terraform output volume_device_name = /dev/sdh
59. Command: terraform output TERMINAL > terraform output volume_device_name /dev/sdh
60. Command: terraform destroy TERMINAL
61. Command: terraform destroy TERMINAL > terraform plan -destroy -out="aws.tfplan"
62. Command: terraform destroy TERMINAL > terraform plan -destroy -out="aws.tfplan"
63. Command: terraform destroy TERMINAL > terraform plan -destroy -out="aws.tfplan"
64. Command: terraform destroy TERMINAL > terraform apply "aws.tfplan"
65. Command: terraform destroy TERMINAL > terraform apply "aws.tfplan" aws_ebs_volume.open_nebula: Destroying... aws_instance.open_nebula: Destroying... aws_volume_attachment.open_nebula: Destroying…
66. Command: terraform destroy TERMINAL > terraform apply "aws.tfplan" aws_ebs_volume.open_nebula: Destroying... aws_instance.open_nebula: Destroying... aws_volume_attachment.open_nebula: Destroying… Apply complete! Resources: 0 added, 0 changed, 3 destroyed.
67. Command: terraform fmt TERMINAL
68. Command: terraform fmt TERMINAL > terraform fmt main.tf
69. Command: terraform fmt TERMINAL > terraform fmt main.tf
70. Command: terraform validate TERMINAL > terraform fmt main.tf > terraform validate Success! The configuration is valid.
71. Command: terraform validate TERMINAL > terraform fmt main.tf > terraform validate Success! The configuration is valid.
72. Command: terraform help TERMINAL > terraform help Usage: terraform [-version] [-help] <command> [args] The available commands for execution are listed below. The most common, useful commands are shown first, followed by less common or more advanced commands. Common commands: apply Builds or changes infrastructure destroy Destroy Terraform-managed infrastructure fmt Rewrites config files to canonical format output Read an output from a state file
73. Terraform Lifecycle and State
74. Terraform lifecycle
75. Terraform lifecycle ▪ terraform init
76. Terraform lifecycle ▪ terraform init ▪ terraform fmt
77. Terraform lifecycle ▪ terraform init ▪ terraform fmt ▪ terraform validate
78. Terraform lifecycle ▪ terraform init ▪ terraform fmt ▪ terraform validate ▪ terraform plan
79. Terraform lifecycle ▪ terraform init ▪ terraform fmt ▪ terraform validate ▪ terraform plan -out=“aws.tfplan"
80. Terraform lifecycle ▪ terraform init ▪ terraform fmt ▪ terraform validate ▪ terraform plan -out=“aws.tfplan" ▪ terraform apply "aws.tfplan"
81. Terraform lifecycle ▪ terraform init ▪ terraform fmt ▪ terraform validate ▪ terraform plan -out="aws.tfplan" ▪ terraform apply “aws.tfplan" ▪ terraform plan -destroy
83. Terraform State ▪ maps real-world resources to your configuration
84. Terraform State ▪ maps real-world resources to your configuration ▪ keeps track of (resource) metadata
85. Terraform State ▪ maps real-world resources to your configuration ▪ keeps track of (resource) metadata ▪ improves performance for large infrastructures
86. Terraform State ▪ maps real-world resources to your configuration ▪ keeps track of (resource) metadata ▪ improves performance for large infrastructures ▪ stored locally (by default), can be stored remotely
87. Terraform State ▪ maps real-world resources to your configuration ▪ keeps track of (resource) metadata ▪ improves performance for large infrastructures ▪ stored locally (by default), can be stored remotely
88. Review
89. Review ▪ Infrastructure as Code
90. Review ▪ Infrastructure as Code ▪ Introduction to Terraform
91. Review ▪ Infrastructure as Code ▪ Introduction to Terraform ▪ Terraform Lifecycle and State
92. Materials ▪ slides: hashi.co/open-nebula-slides
93. Materials ▪ slides: hashi.co/open-nebula-slides ▪ guides: hashi.co/tf-learn
94. Get Started with Terraform Cloud
95. Thank You tdolezal@hashicorp.com