change default aws linux instance type to t3.micro, reduce default template TTL (#2776)

- make default template max TTL 24 hours (still less than 168)
- make default workspace autostop 2 hours unless specified otherwise
- add instance type selector to aws templates

cli/templatecreate.go

@@ -127,7 +127,7 @@ func templateCreate() *cobra.Command {
 	cmd.Flags().StringVarP(&directory, "directory", "d", currentDirectory, "Specify the directory to create from")
 	cmd.Flags().StringVarP(&provisioner, "test.provisioner", "", "terraform", "Customize the provisioner backend")
 	cmd.Flags().StringVarP(&parameterFile, "parameter-file", "", "", "Specify a file path with parameter values.")
-	cmd.Flags().DurationVarP(&maxTTL, "max-ttl", "", 168*time.Hour, "Specify a maximum TTL for workspaces created from this template.")
+	cmd.Flags().DurationVarP(&maxTTL, "max-ttl", "", 24*time.Hour, "Specify a maximum TTL for workspaces created from this template.")
 	cmd.Flags().DurationVarP(&minAutostartInterval, "min-autostart-interval", "", time.Hour, "Specify a minimum autostart interval for workspaces created from this template.")
 	// This is for testing!
 	err := cmd.Flags().MarkHidden("test.provisioner")

coderd/workspaces.go

@@ -32,7 +32,7 @@ import (
 	"github.com/coder/coder/codersdk"
 )
 
-const workspaceDefaultTTL = 12 * time.Hour
+const workspaceDefaultTTL = 2 * time.Hour
 
 func (api *API) workspace(rw http.ResponseWriter, r *http.Request) {
 	workspace := httpmw.WorkspaceParam(r)

examples/templates/aws-linux/main.tf

@@ -36,6 +36,22 @@ variable "region" {
   }
 }
 
+variable "instance_type" {
+  description = "What instance type should your workspace use?"
+  default     = "t3.micro"
+  validation {
+    condition = contains([
+      "t3.micro",
+      "t3.small",
+      "t3.medium",
+      "t3.large",
+      "t3.xlarge",
+      "t3.2xlarge",
+    ], var.instance_type)
+    error_message = "Invalid instance type!"
+  }
+}
+
 provider "aws" {
   region = var.region
 }
@@ -130,7 +146,7 @@ EOT
 resource "aws_instance" "dev" {
   ami               = data.aws_ami.ubuntu.id
   availability_zone = "${var.region}a"
-  instance_type     = "t3.xlarge"
+  instance_type     = "${var.instance_type}"
 
   user_data = data.coder_workspace.me.transition == "start" ? local.user_data_start : local.user_data_end
   tags = {

examples/templates/aws-windows/main.tf

@@ -36,6 +36,22 @@ variable "region" {
   }
 }
 
+variable "instance_type" {
+  description = "What instance type should your workspace use?"
+  default     = "t3.micro"
+  validation {
+    condition = contains([
+      "t3.micro",
+      "t3.small",
+      "t3.medium",
+      "t3.large",
+      "t3.xlarge",
+      "t3.2xlarge",
+    ], var.instance_type)
+    error_message = "Invalid instance type!"
+  }
+}
+
 provider "aws" {
   region = var.region
 }
@@ -83,7 +99,7 @@ EOT
 resource "aws_instance" "dev" {
   ami               = data.aws_ami.windows.id
   availability_zone = "${var.region}a"
-  instance_type     = "t3.micro"
+  instance_type     = "${var.instance_type}"
   count             = 1
 
   user_data = data.coder_workspace.me.transition == "start" ? local.user_data_start : local.user_data_end