Initial commit - Application servers

kichitan · Apr 16, 2020 · 4870dbe · 4870dbe
commit 4870dbe
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diff --git a/.gitignore b/.gitignore
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+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+
+# Ignore any .tfvars files that are generated automatically for each Terraform run. Most
+# .tfvars files are managed as part of configuration and so should be included in
+# version control.
+#
+# example.tfvars
+
+# Ignore override files as they are usually used to override resources locally and so
+# are not checked in
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include override files you do wish to add to version control using negated pattern
+#
+# !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc
+terraform
diff --git a/README.md b/README.md
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+# Learn Terraform Cloud Run Triggers
+
+Learn what Terraform Cloud Run Triggers are and when to use them.
+
+Follow along with the [Learn guide](https://learn.hashicorp.com/terraform/cloud/run-triggers) at HashiCorp Learn.
diff --git a/index.html b/index.html
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+<html>
+<body>
+<main>
+<p>Hello, world!</p>
+</main>
+</body>
+</html>
diff --git a/main.tf b/main.tf
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+data "terraform_remote_state" "vpc" {
+  backend = "remote"
+
+  config = {
+    organization = var.tfc_org_name
+    workspaces = {
+      name = var.tfc_vpc_workspace_name
+    }
+  }
+}
+
+provider "aws" {
+  version = "~> 2.7"
+  region  = data.terraform_remote_state.vpc.outputs.aws_region
+}
+
+data "aws_ami" "amazon_linux" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["amzn2-ami-hvm-*-x86_64-gp2"]
+  }
+
+  owners = ["amazon"]
+}
+
+resource "aws_instance" "app" {
+  count = var.instances_per_subnet * length(data.terraform_remote_state.vpc.outputs.private_subnet_ids)
+
+  ami           = aws_ami.amazon_linux.id
+  instance_type = var.instance_type
+
+  subnet_id = data.terraform_remote_state.vpc.outputs.private_subnet_ids[count.index % length(data.terraform_remote_state.vpc.outputs.private_subnet_ids)]
+
+  user_data = <<EOF
+    sudo yum update -y
+    sudo yum install httpd -y
+    sudo systemctl enable httpd
+    sudo systemctl start httpd
+    echo "<html><body><div>Hello, world!</div></body></html>" > /var/www/html/index.html
+EOF
+
+  tags = {
+    Project = data.terraform_remote_state.vpc.outputs.project_tag
+  }
+}
+
+resource "aws_lb_target_group_attachment" "http" {
+  count = length(aws_instance.app)
+
+  target_group_arn = data.terraform_remote_state.vpc.outputs.lb_target_group_http_arn
+  target_id        = aws_instance.app[count.index].id
+  port             = 80
+
+  tags = {
+    Project = data.terraform_remote_state.vpc.outputs.project_tag
+  }
+}
+
+## HTTPS support requires an SSL certificate, which is out of scope for this
+## example.
+#
+# resource "aws_lb_target_group_attachment" "https" {
+#   count = length(aws_instance.app)
+#
+#   target_group_arn = data.terraform_remote_state.vpc.outputs.lb_target_group_https_arn
+#   target_id        = aws_instance.app[count.index].id
+#   port             = 443
+#
+#   tags = {
+#     Project = data.terraform_remote_state.vpc.outputs.project_tag
+#   }
+# }
diff --git a/outputs.tf b/outputs.tf
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+output web_instance_count {
+  value = len(aws_instance.app)
+}
+
+output public_dns_name {
+  value = data.terraform_remote_state.vpc.outputs.public_dns_name
+}
+
+output aws_region {
+  value = data.terraform_remote_state.vpc.outputs.aws_region
+}
diff --git a/variables.tf b/variables.tf
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+variable tfc_org_name {
+  description = "Name of the Terraform Cloud Organization"
+  type        = string
+  default     = "RunTriggersExampleOrg"
+}
+
+variable tfc_vpc_workspace_name {
+  description = "Name of the Workspace"
+  type        = string
+  default     = "LearnTerraformRunTriggersVPC"
+}
+
+variable instances_per_subnet {
+  description = "Number of EC2 instances in each private subnet"
+  type        = number
+  default     = 2
+}
+
+variable instance_type {
+  description = "Type of EC2 instance to use"
+  type        = string
+  default     = "t2.micro"
+}