Initial commit

.gitlab-ci.yml

+image: alpine:latest
+
+variables:
+  TERRAFORM_URL: "https://releases.hashicorp.com/terraform/0.7.1/terraform_0.7.1_linux_amd64.zip"
+
+before_script:
+  - apk update && apk add ca-certificates && update-ca-certificates && apk add openssl
+  - wget -O /tmp/terraform.zip $TERRAFORM_URL
+  - unzip /tmp/terraform.zip -d /usr/local/bin 
+
+test:
+  script: terraform validate

main.tf

+#############################################################################################################
+# Variables
+#############################################################################################################
+variable "vpc_id" {}
+variable "security_groups" {
+  type = "list"
+}
+
+variable "subnet_ids" {
+  type = "list"
+}
+
+variable "rds_instance_name" {}
+
+variable "rds_engine" {
+  default = "mysql"
+}
+
+variable "rds_engine_version" {
+  default = "5.6.27"
+}
+
+variable "rds_allocated_storage" {
+  description = "The allocated storage in GBs"
+  default = "100"
+}
+
+variable "rds_storage_type" {
+  default = "gp2"
+}
+
+variable "rds_instance_class" {
+  default = "db.t2.micro"
+}
+
+variable "rds_username" {}
+variable "rds_password" {}
+
+variable "rds_multi_az" {
+  default = "true"
+}
+
+variable "rds_publicly_accessible" {
+  default = "false"
+}
+
+variable "backup_retention_period" {
+  default = "7"
+}
+
+variable "backup_window" {
+  default = "00:00-01:00"
+}
+
+variable "maintenance_window" {
+  default = "Sun:01:00-Sun:02:00"
+}
+
+variable "read_replica_count" {
+  default = "0"
+}
+
+variable "parameter_group" {
+    default = "default.mysql5.6"
+}
+
+variable "route53_zone" {}
+
+#############################################################################################################
+# Security Group
+#############################################################################################################
+
+resource "aws_security_group" "rds" {
+  vpc_id      = "${var.vpc_id}"
+  description = "${var.rds_instance_name} RDS SG"
+
+  ingress {
+    from_port       = 3306
+    to_port         = 3306
+    protocol        = "tcp"
+    security_groups = ["${var.security_groups}"]
+  }
+}
+
+#############################################################################################################
+# Subnet Group
+#############################################################################################################
+
+resource "aws_db_subnet_group" "default" {
+  name             = "${var.rds_instance_name}-subnet"
+  description      = "RDS Subnet group for ${var.rds_instance_name}"
+  subnet_ids       = ["${var.subnet_ids}"]
+}
+
+#############################################################################################################
+# RDS Instances
+#############################################################################################################
+resource "aws_db_instance" "default" {
+  identifier              = "${var.rds_instance_name}"
+  engine                  = "${var.rds_engine}"
+  engine_version          = "${var.rds_engine_version}"
+
+  allocated_storage       = "${var.rds_allocated_storage}"
+  storage_type            = "${var.rds_storage_type}"
+
+  instance_class          = "${var.rds_instance_class}"
+
+  username                = "${var.rds_username}"
+  password                = "${var.rds_password}"
+
+  multi_az                = "${var.rds_multi_az}"
+  publicly_accessible     = "${var.rds_publicly_accessible}"
+  vpc_security_group_ids  = ["${aws_security_group.rds.id}"]
+  db_subnet_group_name    = "${aws_db_subnet_group.default.name}"
+
+  parameter_group_name    = "${var.parameter_group}"
+
+  backup_retention_period = "${var.backup_retention_period}"
+  backup_window           = "${var.backup_window}"
+  maintenance_window      = "${var.maintenance_window}"
+
+}
+
+resource "aws_db_instance" "read_replica" {
+  identifier              = "${var.rds_instance_name}-read-replica"
+  engine                  = "${var.rds_engine}"
+  engine_version          = "${var.rds_engine_version}"
+
+  allocated_storage       = "${var.rds_allocated_storage}"
+  storage_type            = "${var.rds_storage_type}"
+
+  instance_class          = "${var.rds_instance_class}"
+
+  username                = "${var.rds_username}"
+  password                = "${var.rds_password}"
+
+  multi_az                = "${var.rds_multi_az}"
+  publicly_accessible     = "${var.rds_publicly_accessible}"
+  vpc_security_group_ids  = ["${aws_security_group.rds.id}"]
+  db_subnet_group_name    = "${aws_db_subnet_group.default.name}"
+
+  parameter_group_name    = "${var.parameter_group}"
+
+  backup_retention_period = "${var.backup_retention_period}"
+  backup_window           = "${var.backup_window}"
+  maintenance_window      = "${var.maintenance_window}"
+
+  replicate_source_db     = "${aws_db_instance.default.name}"
+  count                   = "${var.read_replica_count}"
+}
+
+#############################################################################################################
+# Route 53 Records
+#############################################################################################################
+
+resource "aws_route53_record" "private_rds_default" {
+  zone_id     = "${var.route53_zone}"
+  name        = "mysql.${var.rds_instance_name}.aws"
+  type        = "CNAME"
+  ttl         = "60"
+  records     = ["${aws_db_instance.default.address}"]
+  count       = "${length(split(",", "var.route53_zone"))}"
+}
+
+resource "aws_route53_record" "private_rds_read-replica" {
+  zone_id     = "${var.route53_zone}"
+  name        = "readonly-mysql.${var.rds_instance_name}.aws"
+  type        = "CNAME"
+  ttl         = "60"
+  records     = ["${aws_db_instance.read_replica.address}"]
+  count       = "${length(split(",", "var.route53_zone")) * var.read_replica_count}"
+}
+
+#############################################################################################################
+# Outputs
+#############################################################################################################
+output "rds_instance_id" {
+    value = "${aws_db_instance.default.id}"
+}
+
+output "rds_instance_address" {
+    value = "${aws_db_instance.default.address}"
+}
+
+output "read_replica_rds_instance_id" {
+    value = "${aws_db_instance.read_replica.id}"
+}
+
+output "read_replica_rds_instance_address" {
+    value = "${aws_db_instance.read_replica.address}"
+}
+
+output "subnet_group_id" {
+    value = "${aws_db_subnet_group.default.id}"
+}
\ No newline at end of file