operations: terraform to standup prod infrastructure.

This commit is contained in:
2021-10-24 17:23:39 -05:00
parent 7e26ab73d5
commit d70012cb8c
17 changed files with 607 additions and 1 deletions

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data "aws_iam_policy_document" "bucket_access_policy" {
statement {
actions = [ "s3:GetObject" ]
effect = "Allow"
resources = [ "${var.artifact_bucket.arn}/${var.environment}/webroot/*" ]
principals {
type = "AWS"
identifiers = [ aws_cloudfront_origin_access_identity.origin_access_identity.iam_arn ]
}
}
statement {
actions = [ "s3:ListBucket" ]
effect = "Allow"
resources = [ var.artifact_bucket.arn ]
principals {
type = "AWS"
identifiers = [ aws_cloudfront_origin_access_identity.origin_access_identity.iam_arn ]
}
}
}
output "oai_access_policy" {
value = data.aws_iam_policy_document.bucket_access_policy
}
resource "aws_cloudfront_origin_access_identity" "origin_access_identity" {
comment = "OAI for HFF Entry Forms {$var.environment} environment."
}
resource "aws_cloudfront_distribution" "s3_distribution" {
origin {
domain_name = var.artifact_bucket.bucket_regional_domain_name
origin_id = "S3-HffEntryForms-${var.environment}"
origin_path = "/${var.environment}/webroot"
s3_origin_config {
origin_access_identity = aws_cloudfront_origin_access_identity.origin_access_identity.cloudfront_access_identity_path
}
}
enabled = true
is_ipv6_enabled = true
comment = "HFF Entry Forms ${var.environment} distribution."
default_root_object = "/index.html"
logging_config {
include_cookies = false
bucket = var.artifact_bucket.bucket_domain_name
prefix = "${var.environment}/logs/cloudfront"
}
aliases = [local.app_domain_name]
default_cache_behavior {
allowed_methods = ["GET", "HEAD", "OPTIONS"]
cached_methods = ["GET", "HEAD", "OPTIONS"]
target_origin_id = "S3-HffEntryForms-${var.environment}"
forwarded_values {
query_string = false
cookies {
forward = "none"
}
}
min_ttl = 0
default_ttl = 60 * 60 * 24 * 365 # cache for a year
max_ttl = 60 * 60 * 24 * 365 # cache for a year
compress = true
viewer_protocol_policy = "redirect-to-https"
}
custom_error_response {
error_code = 404
response_code = 200
response_page_path = "/index.html"
}
price_class = "PriceClass_100" # US and Canada only
restrictions {
geo_restriction {
restriction_type = "none"
}
}
tags = {
Environment = local.environment_name
}
viewer_certificate {
# TODO
acm_certificate_arn = var.cloudfront_certificate_arn
ssl_support_method = "sni-only"
}
}

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resource "aws_secretsmanager_secret" "hff_entry_forms_api" {
name = "${local.environment_name}-Config"
tags = { Environment = local.environment_name }
}
resource "aws_ecs_task_definition" "hff_entry_forms_api" {
family = local.environment_name
network_mode = "bridge"
requires_compatibilities = ["EC2"]
execution_role_arn = aws_iam_role.ecs_task.arn
# See https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_ContainerDefinition.html
container_definitions = jsonencode([
{
name = local.environment_name
image = "${var.ecr_repo.repository_url}:${data.external.git_describe.result.version}"
cpu = 128
memory = 128
memoryReservation = 32
environment = [
{
name = "PORT"
value = "80"
}
]
portMappings = [
{
protocol = "tcp"
containerPort = 80
}
]
secrets = [
{
name = "INTEGRATION_TOKEN"
description = "Connection string with user credentials."
valueFrom = "${aws_secretsmanager_secret.hff_entry_forms_api.arn}:integrationToken::"
},
{
name = "KNOWN_ORIGINS"
description = "Connection string with user credentials."
valueFrom = "${aws_secretsmanager_secret.hff_entry_forms_api.arn}:knownOrigins::"
}
]
}
])
tags = {
Name = local.api_domain_name
Environment = local.environment_name
}
}
resource "aws_ecs_service" "hff_entry_forms_api" {
name = local.environment_name
cluster = data.terraform_remote_state.jdbsoft.outputs.aws_ecs_cluster_ortis.id
task_definition = aws_ecs_task_definition.hff_entry_forms_api.arn
desired_count = 1
launch_type = "EC2"
load_balancer {
target_group_arn = aws_lb_target_group.hff_entry_forms_api.arn
container_name = local.environment_name
container_port = 80
}
tags = {
Name = local.api_domain_name
Environment = local.environment_name
}
}

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resource "aws_iam_role" "ecs_task" {
name = "${local.environment_name}-EcsTaskRole"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Action = "sts:AssumeRole"
Effect = "Allow"
Sid = ""
Principal = {
Service = "ecs-tasks.amazonaws.com"
}
}
]
})
inline_policy {
name = "AllowSecretsAccessForHffEntryFormsApiTasks"
policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Action = [
"secretsmanager:GetSecretValue",
"kms:Decrypt"
]
Resource = [
aws_secretsmanager_secret.hff_entry_forms_api.arn
]
}
]
})
}
inline_policy {
name = "AllowAccessToEcrForHffEntryFormsApiTasks"
policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Action = [
"ecr:GetAuthorizationToken"
]
Resource = [ "*" ]
},
{
Effect = "Allow"
Action = [
"ecr:BatchGetImage",
"ecr:BatchCheckLayerAvailability",
"ecr:DescribeImages",
"ecr:GetDownloadUrlForLayer"
]
Resource = [
var.ecr_repo.arn
]
}
]
})
}
tags = {
Name = "HffEntryForms-EcsTaskRole"
Environment = local.environment_name
}
}

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resource "aws_lb_target_group" "hff_entry_forms_api" {
name = "${local.environment_name}-${substr(uuid(), 0, 2)}"
port = 80
protocol = "HTTP"
target_type = "instance"
vpc_id = data.terraform_remote_state.jdbsoft.outputs.aws_vpc_jdbsoft.id
health_check {
enabled = true
matcher = "200"
path = "/v1/version"
}
lifecycle {
create_before_destroy = true
ignore_changes = [name]
}
tags = {
Name = local.api_domain_name
Environment = local.environment_name
}
}
resource "aws_lb_listener_rule" "hff_entry_forms_api" {
listener_arn = data.terraform_remote_state.jdbsoft.outputs.aws_lb_listener_https.arn
action {
type = "forward"
target_group_arn = aws_lb_target_group.hff_entry_forms_api.arn
}
condition {
host_header {
values = [ local.api_domain_name ]
}
}
tags = {
Name = "${local.api_domain_name} HTTPS"
Environment = local.environment_name
}
}

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### Variables
variable "environment" {
description = "The short name of this deployed environment. For example: 'dev' or 'prod'. This short name will be used to name resources (CloudFront distributions, etc.)"
}
variable "artifact_bucket" {
description = "The aws_s3_bucket object representing the artifact bucket where deployed artifacts, logs, etc. live."
}
variable "ecr_repo" {
description = "ECR repository information."
}
variable "api_certificate_arn" {
description = "ARN of the certificate to use for the API loadbalancer."
}
variable "cloudfront_certificate_arn" {
description = "ARN of the certificate to use for CloudFront."
}
locals {
environment_name = "HffEntryForms-${var.environment}"
app_domain_name = "forms${var.environment == "prod" ? "" : "-${var.environment}"}.hopefamilyfellowship.com"
api_domain_name = "forms-api${var.environment == "prod" ? "" : "-${var.environment}"}.hopefamilyfellowship.com"
}
data "external" "git_describe" {
program = ["sh", "-c", "git describe | xargs printf '{\"version\": \"%s\"}'"]
}
data "terraform_remote_state" "jdbsoft" {
backend = "s3"
config = {
bucket = "operations.jdb-software.com"
region = "us-west-2"
key = "terraform/operations.tfstate"
dynamodb_table = "terraform-state-lock.jdb-software.com"
}
}