Terraform - Overview

This talk is a very high-level overview of the making and purpose of Terraform by HashiCorp.

Transcript

1. TERRAFORM Build,  Combine,  and  Launch  Infrastructure
2. SETH VARGO @sethvargo
5. MOTIVATION Why  Terraform?
6. How  do  I  provision  resources?              compute?              storage?              network?
7. How  do  I  manage  resource  lifecycles?
8. How  do  I  balance  service  providers   providing  core  technology  for  my   datacenter?
9. How  do  I  enforce  policy  across  all   these  resources?
10. How  do  I  automate  and  share  those   configuraCons?
11. RISING DATACENTER COMPLEXITY
12. RISING DATACENTER COMPLEXITY DC
13. RISING DATACENTER COMPLEXITY DC
14. RISING DATACENTER COMPLEXITY DC VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM
15. RISING DATACENTER COMPLEXITY DC VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM VM C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C
16. RISING DATACENTER COMPLEXITY DC DNS Database CDN
17. RISING DATACENTER COMPLEXITY DC-01 DC-02
18. RISING DATACENTER COMPLEXITY DC-01 DC-02 VM VM VM VM VM VM VM VM C C C C C C C C C C C C C C C C C C C C C C C C
19. RISING DATACENTER COMPLEXITY IaaS,  PaaS,  SaaS
20. RISING DATACENTER COMPLEXITY All logos and trademarks are copyright their respective owners
21. WHY? What  was  our  original  goal?
22. EFFECTIVELY  DELIVER AND  MAINTAIN   APPLICATIONS
23. h-ps:/ / d250n10lsq5j8r.cloudfront.n et/assets/atlas/runAme-­‐ develop-­‐icon-­‐color-­‐ ebf4ccf5f2ca3513e495bccb e9320d45.png Consistent Shareable Readily Available High production 
 parity h-ps:/ / d250n10lsq5j8r.cloudfront.n et/assets/atlas/runAme-­‐ deploy-­‐icon-­‐ color-­‐1c39f618b3b5ead204 dda4646bb2410e.png Start and configure servers / services Deploy and run application Update servers or applications Reconfigure, feature flag Monitor health Orchestrate complex changes DEVELOP DEPLOY MAINTAIN
24. h-ps:/ / d250n10lsq5j8r.cloudfront.n et/assets/atlas/runAme-­‐ develop-­‐icon-­‐color-­‐ ebf4ccf5f2ca3513e495bccb e9320d45.png h-ps:/ / d250n10lsq5j8r.cloudfront.n et/assets/atlas/runAme-­‐ deploy-­‐icon-­‐ color-­‐1c39f618b3b5ead204 dda4646bb2410e.png DEVELOP DEPLOY MAINTAIN
25. TERRAFORM'S  GOAL
26. PROVIDE A SINGLE WORKFLOW
27. WITH A UNIFIED VIEW
28. USING INFRASTRUCTURE AS CODE
29. THAT CAN BE ITERATED AND CHANGED SAFELY
30. CAPABLE OF COMPLEX N-TIER APPLICATIONS
31. DIGITAL OCEAN DROPLET WITH DNS USING DNS SIMPLE resource "digitalocean_droplet" "web" { name = "tf-web" size = "512mb" image = "centos-5-8-x32" region = "sfo1" } resource "dnsimple_record" "hello" { domain = "example.com" name = "test" value = "${digitalocean_droplet.web.ipv4_address}" type = "A" }
32. DIGITAL OCEAN DROPLET WITH DNS USING DNS SIMPLE resource "digitalocean_droplet" "web" { name = "tf-web" size = "512mb" image = "centos-5-8-x32" region = "sfo1" } resource "dnsimple_record" "hello" { domain = "example.com" name = "test" value = "${digitalocean_droplet.web.ipv4_address}" type = "A" }
33. DIGITAL OCEAN DROPLET WITH DNS USING DNS SIMPLE resource "digitalocean_droplet" "web" { name = "tf-web" size = "512mb" image = "centos-5-8-x32" region = "sfo1" } resource "dnsimple_record" "hello" { domain = "example.com" name = "test" value = "${digitalocean_droplet.web.ipv4_address}" type = "A" }
34. DIGITAL OCEAN DROPLET WITH DNS USING DNS SIMPLE resource "digitalocean_droplet" "web" { name = "tf-web" size = "512mb" image = "centos-5-8-x32" region = "sfo1" } resource "dnsimple_record" "hello" { domain = "example.com" name = "test" value = "${digitalocean_droplet.web.ipv4_address}" type = "A" }
35. HUMAN-FRIENDLY CONFIG* * JSON-COMPATIBLE FOR NON-HUMANS
36. VCS-FRIENDLY FORMAT
37. ENTIRE INFRASTRUCTURE... IN A SINGLE TEXT FILE
38. TERRAFORM  GRAPH
39. COMPOSE N-TIERS / PROVIDERS
40. TERRAFORM  PROVIDERS
41. SINGLE INTEGRATION POINT
42. EXPOSE ("PROVIDE") A RESOURCE
43. EXPOSE ("PROVIDE") A RESOURCE aws_instance dnssimple_record
44. CRUD API
45. PLUGGABLE FOR INTEGRATIONS
46. C C C C C C VM VM VM IAAS (OpenStack, etc) PHYSICAL "LAYER CAKE" PROVIDER PER LAYER UNIFIED CONFIGURATION
47. $ terraform apply
48. All logos and trademarks are copyright their respective owners
49. TERRAFORM  PLAN
50. $ terraform plan + digitalocean_droplet.web backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>"
51. $ terraform plan + digitalocean_droplet.web backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>"
52. $ terraform plan + digitalocean_droplet.web backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>"
53. $ terraform plan + digitalocean_droplet.web backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>"
54. backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>" ttl: "" => "<computed>" type: "" => "A" value: "" => "${digitalocean_droplet.web.ipv4_address}"
55. backups: "" => "<computed>" image: "" => "centos-5-8-x32" ipv4_address: "" => "<computed>" ipv4_address_private: "" => "<computed>" name: "" => "tf-web" private_networking: "" => "<computed>" region: "" => "sfo1" size: "" => "512mb" status: "" => "<computed>" + dnsimple_record.hello domain: "" => "example.com" domain_id: "" => "<computed>" hostname: "" => "<computed>" name: "" => "test" priority: "" => "<computed>" ttl: "" => "<computed>" type: "" => "A" value: "" => "${digitalocean_droplet.web.ipv4_address}"
56. SHOWS YOU WHAT WILL HAPPEN
57. EXPLAINS CERTAIN ACTIONS
58. PREVIOUSLY?
59. DEV OPS
60. DEV OPS ^ versus
61. DEVELOPERS OPERATORS Define core infrastructure Security Scalability Deploy applications Production parity
62. DEVELOPERS OPERATORS Modify Terraform configs Treat Terraform configs as a black box
63. DEVELOPERS OPERATORS Self-server Self-servee
64. C C C C C C VM VM VM IAAS (OpenStack, etc) PHYSICAL DECOMPOSE DELEGATE DEPLOY DEV OPS
65. TERRAFORM MODULE module "consul" { source = "github.com/hashicorp/consul/terraform/aws" servers = 5 version = "0.4.0" }
66. TERRAFORM MODULE module "consul" { source = "github.com/hashicorp/consul/terraform/aws" servers = 5 version = "0.4.0" } resource "dnsimple_record" "consul" { domain = "example.com" name = "consul" value = "${module.consul.ip_address}" type = "A" }
67. ABSTRACT COMPONENTS
68. HIGHER-LEVEL REASONING
69. RE-USABLE
70. MAINTENANCE DELEGATION
71. SETH VARGO @sethvargo QUESTIONS?