#announcements - July 2018

that is an actual terraform argument I think

variable "git_ref" {
  default = "tag"
}

data "external" "example" {
  count = "${var.git_ref == "tag" ? 1 : 0}"
  program = ["git", "-C", "${path.module}", "tag", "--points-at", "HEAD", "--format={\"ref\": \"%(refname:lstrip=2)\"}"]

  query = {
  }
}


output "ref" {
  value = "${join("", data.external.example.*.result.ref)}"
}

ref = test-0.1.1

locals { cluster_name = "${element(split("/",(aws_ecs_cluster.default.arn), 1)}"}

### For looking up info from the other Terraform States
variable "state_bucket" {
  description = "The bucket name where the chared Terraform state is kept"
}

variable "state_region" {
  description = "The region for the Terraform state bucket"
}

variable "env" {
  description = "The terraform workspace name."
}

locals {
  state_path = "${var.env == "default" ? "" : "env:/${var.env}/" }"
}

### Look up remote state info

data "terraform_remote_state" "vpc" {
  backend = "s3"

  config {
    bucket = "${var.state_bucket}"
    key    = "${local.state_path}vpc/state.tfstate"
    region = "${var.state_region}"
  }
}

data "terraform_remote_state" "backing_services" {
  backend = "s3"

  config {
    bucket = "${module.identity.namespace}-${module.identity.stage}-terraform-state"
    key    = "backing-services/terraform.tfstate"
  }
}

resource "aws_thing" "default" {
  tags = { managedby = "Terraform"}
}

output "thing" { value = "the thing i mentioned" }

if (...) {
....
}

if (...)
{
...
}

data:
  template_file:
    example:
      template: '${hello} ${world}!'
      vars:
        hello: goodnight
        world: moon
output:
  rendered:
    value: '${data.template_file.example.rendered}'

variable:
  count:
    default: 2
  hostnames:
    default:
      '0': <http://example1.org|example1.org>
      '1': <http://example2.net|example2.net>
data:
  template_file:
    web_init:
      count: '${var.count}'
      template: '${file("templates/web_init.tpl")}'
      vars:
        hostname: '${lookup(var.hostnames, count.index)}'
resource:
  aws_instance:
    web:
      count: '${var.count}'
      user_data: '${element(data.template_file.web_init.*.rendered, count.index)}'

data "template_file" "example" {
  template = "${hello} ${world}!"
  vars {
    hello = "goodnight"
    world = "moon"
  }
}

output "rendered" {
  value = "${data.template_file.example.rendered}"
}

variable "count" {
  default = 2
}

variable "hostnames" {
  default = {
    "0" = "<http://example1.org|example1.org>"
    "1" = "<http://example2.net|example2.net>"
  }
}

data "template_file" "web_init" {
  // here we expand multiple template_files - the same number as we have instances
  count    = "${var.count}"
  template = "${file("templates/web_init.tpl")}"
  vars {
    // that gives us access to use count.index to do the lookup
    hostname = "${lookup(var.hostnames, count.index)}"
  }
}

resource "aws_instance" "web" {
  // ...
  count = "${var.count}"
  // here we link each web instance to the proper template_file
  user_data = "${element(data.template_file.web_init.*.rendered, count.index)}"
}

not_working = {
  request = [map[style:map[type:solid width:normal palette:dog_classic] q:avg:aws.applicationelb.target_response_time.p95{targetgroup:targetgroup/qa-web-backend-web/123} aggregator:avg type:line]]
  title = not_working
  viz = timeseries
}
working = {
  request = [map[q:avg:aws.applicationelb.target_response_time.p95{targetgroup:targetgroup/qa-web-backend-web/123} aggregator:avg type:line style:map[palette:dog_classic type:solid width:normal]]]
  title = working
  viz = timeseries
}

module "rds_mysql" {
  source             = "git::<https://github.com/cloudposse/terraform-aws-rds-cluster.git?ref=master>"
  engine             = "aurora-mysql"
  cluster_size       = "${var.MYSQL_CLUSTER_SIZE}"
  cluster_family     = "aurora-mysql5.7"
  namespace          = "${var.namespace}"
  stage              = "${var.stage}"
  name               = "${var.MYSQL_DB_NAME}"
  admin_user         = "${var.MYSQL_ADMIN_NAME}"
  admin_password     = "${var.MYSQL_ADMIN_PASSWORD}"
  db_name            = "${var.MYSQL_DB_NAME}"
  instance_type      = "${var.MYSQL_INSTANCE_TYPE}"
  vpc_id             = "${module.vpc.vpc_id}"
  availability_zones = ["us-west-2b", "us-west-2c"]
  security_groups    = ["${aws_security_group.store_pv.id}"]
  subnets            = ["${module.subnets.private_subnet_ids}"]
  zone_id            = "${var.zone_id}"

  cluster_parameters = [
    {
      name  = "character_set_client"
      value = "utf8"
    },
    {
      name  = "character_set_connection"
      value = "utf8"
    },
    {
      name  = "character_set_database"
      value = "utf8"
    },
    {
      name  = "character_set_results"
      value = "utf8"
    },
    {
      name  = "character_set_server"
      value = "utf8"
    },
    {
      name         = "lower_case_table_names"
      value        = "1"
      apply_method = "pending-reboot"
    },
    {
      name         = "skip-character-set-client-handshake"
      value        = "1"
      apply_method = "pending-reboot"
    },
  ]
}

-/+ module.rds_mysql.aws_rds_cluster.default (new resource required)
      id:                                  "niki-dev-commerce" => <computed> (forces new resource)
      apply_immediately:                   "true" => "true"
      availability_zones.#:                "3" => "2" (forces new resource)
      availability_zones.2050015877:       "us-west-2c" => "us-west-2c"
      availability_zones.221770259:        "us-west-2b" => "us-west-2b"
      availability_zones.2487133097:       "us-west-2a" => "" (forces new resource)
      backup_retention_period:             "5" => "5"
      cluster_identifier:                  "niki-dev-commerce" => "niki-dev-commerce"
      cluster_identifier_prefix:           "" => <computed>
      cluster_members.#:                   "1" => <computed>
      cluster_resource_id:                 "cluster-PA4BVKHSGWXDI7RT72RN2JGEZQ" => <computed>
      database_name:                       "commerce" => "commerce"
      db_cluster_parameter_group_name:     "niki-dev-commerce" => "niki-dev-commerce"
      db_subnet_group_name:                "niki-dev-commerce" => "niki-dev-commerce"
      endpoint:                            "<http://niki-dev-commerce.cluster-cgxpu4rhgni7.us-west-2.rds.amazonaws.com|niki-dev-commerce.cluster-cgxpu4rhgni7.us-west-2.rds.amazonaws.com>" => <computed>
      engine:                              "aurora-mysql" => "aurora-mysql"
      engine_version:                      "5.7.12" => <computed>
      final_snapshot_identifier:           "niki-dev-commerce" => "niki-dev-commerce"
      hosted_zone_id:                      "Z1PVIF0B656C1W" => <computed>
      iam_database_authentication_enabled: "false" => "false"
      kms_key_id:                          "" => <computed>
      master_password:                     <sensitive> => <sensitive> (attribute changed)
      master_username:                     "root" => "root"
      port:                                "3306" => <computed>
      preferred_backup_window:             "07:00-09:00" => "07:00-09:00"
      preferred_maintenance_window:        "wed:03:00-wed:04:00" => "wed:03:00-wed:04:00"
      reader_endpoint:                     "<http://niki-dev-commerce.cluster-ro-cgxpu4rhgni7.us-west-2.rds.amazonaws.com|niki-dev-commerce.cluster-ro-cgxpu4rhgni7.us-west-2.rds.amazonaws.com>" => <computed>
      skip_final_snapshot:                 "true" => "true"
      storage_encrypted:                   "false" => "false"
      tags.%:                              "3" => "3"
      tags.Name:                           "niki-dev-commerce" => "niki-dev-commerce"
      tags.Namespace:                      "niki" => "niki"
      tags.Stage:                          "dev" => "dev"
      vpc_security_group_ids.#:            "1" => "1"
      vpc_security_group_ids.1052271664:   "sg-0774db77" => "sg-0774db77"

module "subnets" {
  source              = "git::<https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=master>"
  availability_zones  = ["us-west-2b", "us-west-2c"]
  namespace           = "${var.namespace}"
  stage               = "${var.stage}"
  name                = "${local.name}"
  region              = "${var.kops_region}"
  vpc_id              = "${module.vpc.vpc_id}"
  igw_id              = "${module.vpc.igw_id}"
  cidr_block          = "${module.vpc.vpc_cidr_block}"
  nat_gateway_enabled = "true"
}