Model/infrastructure/terraform/modules/cloudfront/main.tf
2026-03-13 11:16:41 +00:00

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############################################
# CloudFront Distribution
############################################
resource "aws_cloudfront_distribution" "this" {
##########################################
# Origins
##########################################
dynamic "origin" {
for_each = { for o in var.origins : o.origin_id => o }
content {
domain_name = origin.value.origin_domain_name
origin_id = origin.value.origin_id
######################################
# S3 Origin
######################################
dynamic "s3_origin_config" {
for_each = origin.value.origin_type == "s3" ? [1] : []
content {
origin_access_identity =
aws_cloudfront_origin_access_identity.oai[origin.key]
.cloudfront_access_identity_path
}
}
######################################
# API Gateway Origin
######################################
dynamic "custom_origin_config" {
for_each = origin.value.origin_type == "api" ? [1] : []
content {
http_port = 80
https_port = 443
origin_protocol_policy = "https-only"
origin_ssl_protocols = ["TLSv1.2"]
}
}
}
}
enabled = true
aliases = var.aliases
##########################################
# Default Cache Behavior
##########################################
default_cache_behavior {
target_origin_id = var.origins[0].origin_id
viewer_protocol_policy = "redirect-to-https"
allowed_methods = [
"GET",
"HEAD"
]
cached_methods = [
"GET",
"HEAD"
]
forwarded_values {
query_string = true
headers = ["*"]
cookies {
forward = "all"
}
}
compress = true
min_ttl = 0
default_ttl = 3600
max_ttl = 86400
}
price_class = "PriceClass_All"
##########################################
# Geo Restrictions
##########################################
restrictions {
geo_restriction {
restriction_type = "none"
}
}
##########################################
# SSL Certificate
##########################################
viewer_certificate {
cloudfront_default_certificate = true
}
}
############################################
# Origin Access Identities (S3 only)
############################################
resource "aws_cloudfront_origin_access_identity" "oai" {
for_each = {
for o in var.origins : o.origin_id => o
if o.origin_type == "s3"
}
comment = "OAI for ${each.key}"
}
############################################
# S3 Bucket Policy (S3 only)
############################################
resource "aws_s3_bucket_policy" "bucket_policy" {
for_each = {
for o in var.origins : o.origin_id => o
if o.origin_type == "s3"
}
bucket = each.value.bucket_id
policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Effect = "Allow"
Principal = {
AWS = aws_cloudfront_origin_access_identity.oai[each.key]
.iam_arn
}
Action = "s3:GetObject"
Resource = "${each.value.bucket_arn}/*"
}
]
})
}