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cloudfront_distribution.tf
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cloudfront_distribution.tf
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#---------------------------------------------------
# AWS cloudfront distribution
#---------------------------------------------------
resource "aws_cloudfront_distribution" "cloudfront_distribution" {
count = var.enable_cloudfront_distribution ? length(var.cloudfront_distribution_stack) : 0
enabled = lookup(var.cloudfront_distribution_stack[count.index], "enabled", null)
dynamic "default_cache_behavior" {
iterator = default_cache_behavior
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "default_cache_behavior", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "default_cache_behavior", {})] : []
content {
allowed_methods = lookup(default_cache_behavior.value, "allowed_methods", ["GET", "HEAD", "OPTIONS"])
cached_methods = lookup(default_cache_behavior.value, "cached_methods", ["GET", "HEAD"])
// path_pattern = lookup(default_cache_behavior.value, "path_pattern", "/*")
target_origin_id = lookup(default_cache_behavior.value, "target_origin_id", "appsync")
viewer_protocol_policy = lookup(default_cache_behavior.value, "viewer_protocol_policy", "allow-all")
compress = lookup(default_cache_behavior.value, "compress", null)
field_level_encryption_id = lookup(default_cache_behavior.value, "field_level_encryption_id", null)
default_ttl = lookup(default_cache_behavior.value, "default_ttl", null)
max_ttl = lookup(default_cache_behavior.value, "max_ttl", null)
min_ttl = lookup(default_cache_behavior.value, "min_ttl", null)
cache_policy_id = lookup(default_cache_behavior.value, "cache_policy_id", (var.enable_cloudfront_cache_policy ? aws_cloudfront_cache_policy.cloudfront_cache_policy[0].id : null))
origin_request_policy_id = lookup(default_cache_behavior.value, "origin_request_policy_id", (var.enable_cloudfront_origin_request_policy ? aws_cloudfront_origin_request_policy.cloudfront_origin_request_policy[0].id : null))
realtime_log_config_arn = lookup(default_cache_behavior.value, "realtime_log_config_arn", (var.enable_cloudfront_realtime_log_config ? aws_cloudfront_realtime_log_config.cloudfront_realtime_log_config[0].id : null))
smooth_streaming = lookup(default_cache_behavior.value, "smooth_streaming", null)
trusted_signers = lookup(default_cache_behavior.value, "trusted_signers", null)
dynamic "forwarded_values" {
iterator = forwarded_values
for_each = length(keys(lookup(default_cache_behavior.value, "forwarded_values", {}))) > 0 ? [lookup(default_cache_behavior.value, "forwarded_values", {})] : []
content {
query_string = lookup(forwarded_values.value, "query_string", null)
headers = lookup(forwarded_values.value, "headers", null)
query_string_cache_keys = lookup(forwarded_values.value, "query_string_cache_keys", null)
dynamic "cookies" {
iterator = cookies
for_each = length(keys(lookup(forwarded_values.value, "cookies", {}))) > 0 ? [lookup(forwarded_values.value, "cookies", {})] : []
content {
forward = lookup(cookies.value, "forward", null)
whitelisted_names = lookup(cookies.value, "whitelisted_names", null)
}
}
}
}
dynamic "lambda_function_association" {
iterator = lambda_function_association
for_each = length(keys(lookup(default_cache_behavior.value, "lambda_function_association", {}))) > 0 ? [lookup(default_cache_behavior.value, "lambda_function_association", {})] : []
content {
event_type = lookup(lambda_function_association.value, "event_type", null)
lambda_arn = lookup(lambda_function_association.value, "lambda_arn", null)
include_body = lookup(lambda_function_association.value, "include_body", null)
}
}
}
}
dynamic "origin" {
iterator = origin
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "origin", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "origin", {})] : []
content {
origin_id = lookup(origin.value, "origin_id", null)
domain_name = lookup(origin.value, "domain_name", null)
origin_path = lookup(origin.value, "origin_path", null)
dynamic "custom_header" {
iterator = custom_header
for_each = lookup(origin.value, "custom_header", [])
content {
name = lookup(custom_header.value, "name", null)
value = lookup(custom_header.value, "value", null)
}
}
dynamic "custom_origin_config" {
iterator = custom_origin_config
for_each = length(keys(lookup(origin.value, "custom_origin_config", {}))) > 0 ? [lookup(origin.value, "custom_origin_config", {})] : []
content {
origin_protocol_policy = lookup(custom_origin_config.value, "origin_protocol_policy", null)
http_port = lookup(custom_origin_config.value, "http_port", null)
https_port = lookup(custom_origin_config.value, "https_port", null)
origin_ssl_protocols = lookup(custom_origin_config.value, "origin_ssl_protocols", null)
origin_keepalive_timeout = lookup(custom_origin_config.value, "origin_keepalive_timeout", null)
origin_read_timeout = lookup(custom_origin_config.value, "origin_read_timeout", null)
}
}
dynamic "s3_origin_config" {
iterator = s3_origin_config
for_each = length(keys(lookup(origin.value, "s3_origin_config", {}))) > 0 ? [lookup(origin.value, "s3_origin_config", {})] : []
content {
origin_access_identity = lookup(s3_origin_config.value, "origin_access_identity", null)
}
}
}
}
dynamic "restrictions" {
iterator = restrictions
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "restrictions", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "restrictions", {})] : []
content {
dynamic "geo_restriction" {
iterator = geo_restriction
for_each = length(keys(lookup(restrictions.value, "geo_restriction", {}))) > 0 ? [lookup(restrictions.value, "geo_restriction", {})] : []
content {
restriction_type = lookup(geo_restriction.value, "restriction_type", null)
locations = lookup(geo_restriction.value, "locations", null)
}
}
}
}
dynamic "viewer_certificate" {
iterator = viewer_certificate
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "viewer_certificate", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "viewer_certificate", {})] : []
content {
cloudfront_default_certificate = lookup(viewer_certificate.value, "cloudfront_default_certificate", null)
acm_certificate_arn = lookup(viewer_certificate.value, "acm_certificate_arn", null)
iam_certificate_id = lookup(viewer_certificate.value, "iam_certificate_id", null)
minimum_protocol_version = lookup(viewer_certificate.value, "minimum_protocol_version", null)
ssl_support_method = lookup(viewer_certificate.value, "ssl_support_method", null)
}
}
// Optionals
aliases = lookup(var.cloudfront_distribution_stack[count.index], "aliases", null)
comment = lookup(var.cloudfront_distribution_stack[count.index], "comment", null)
default_root_object = lookup(var.cloudfront_distribution_stack[count.index], "default_root_object", null)
is_ipv6_enabled = lookup(var.cloudfront_distribution_stack[count.index], "is_ipv6_enabled", null)
http_version = lookup(var.cloudfront_distribution_stack[count.index], "http_version", null)
price_class = lookup(var.cloudfront_distribution_stack[count.index], "price_class", null)
web_acl_id = lookup(var.cloudfront_distribution_stack[count.index], "web_acl_id", null)
retain_on_delete = lookup(var.cloudfront_distribution_stack[count.index], "retain_on_delete", null)
wait_for_deployment = lookup(var.cloudfront_distribution_stack[count.index], "wait_for_deployment", null)
dynamic "custom_error_response" {
iterator = custom_error_response
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "custom_error_response", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "custom_error_response", {})] : []
content {
error_code = lookup(custom_error_response.value, "error_code", null)
error_caching_min_ttl = lookup(custom_error_response.value, "error_caching_min_ttl", null)
response_code = lookup(custom_error_response.value, "response_code", null)
response_page_path = lookup(custom_error_response.value, "response_page_path", null)
}
}
dynamic "logging_config" {
iterator = logging_config
for_each = lookup(var.cloudfront_distribution_stack[count.index], "logging_config", [])
content {
bucket = lookup(logging_config.value, "bucket", null)
include_cookies = lookup(logging_config.value, "include_cookies", null)
prefix = lookup(logging_config.value, "prefix", null)
}
}
// Cache behavior with precedence
dynamic "ordered_cache_behavior" {
iterator = ordered_cache_behavior
for_each = lookup(var.cloudfront_distribution_stack[count.index], "ordered_cache_behavior", [])
content {
allowed_methods = lookup(ordered_cache_behavior.value, "allowed_methods", ["GET", "HEAD", "OPTIONS"])
cached_methods = lookup(ordered_cache_behavior.value, "cached_methods", ["GET", "HEAD"])
path_pattern = lookup(ordered_cache_behavior.value, "path_pattern", "/*")
target_origin_id = lookup(ordered_cache_behavior.value, "target_origin_id", "appsync")
viewer_protocol_policy = lookup(ordered_cache_behavior.value, "viewer_protocol_policy", "allow-all")
compress = lookup(ordered_cache_behavior.value, "compress", null)
field_level_encryption_id = lookup(ordered_cache_behavior.value, "field_level_encryption_id", null)
default_ttl = lookup(ordered_cache_behavior.value, "default_ttl", null)
max_ttl = lookup(ordered_cache_behavior.value, "max_ttl", null)
min_ttl = lookup(ordered_cache_behavior.value, "min_ttl", null)
cache_policy_id = lookup(ordered_cache_behavior.value, "cache_policy_id", (var.enable_cloudfront_cache_policy ? aws_cloudfront_cache_policy.cloudfront_cache_policy[0].id : null))
origin_request_policy_id = lookup(ordered_cache_behavior.value, "origin_request_policy_id", (var.enable_cloudfront_origin_request_policy ? aws_cloudfront_origin_request_policy.cloudfront_origin_request_policy[0].id : null))
realtime_log_config_arn = lookup(ordered_cache_behavior.value, "realtime_log_config_arn", (var.enable_cloudfront_realtime_log_config ? aws_cloudfront_realtime_log_config.cloudfront_realtime_log_config[0].id : null))
smooth_streaming = lookup(ordered_cache_behavior.value, "smooth_streaming", null)
trusted_signers = lookup(ordered_cache_behavior.value, "trusted_signers", null)
dynamic "forwarded_values" {
iterator = forwarded_values
for_each = length(keys(lookup(ordered_cache_behavior.value, "forwarded_values", {}))) > 0 ? [lookup(ordered_cache_behavior.value, "forwarded_values", {})] : []
content {
query_string = lookup(forwarded_values.value, "query_string", null)
headers = lookup(forwarded_values.value, "headers", null)
query_string_cache_keys = lookup(forwarded_values.value, "query_string_cache_keys", null)
dynamic "cookies" {
iterator = cookies
for_each = length(keys(lookup(forwarded_values.value, "cookies", {}))) > 0 ? [lookup(forwarded_values.value, "cookies", {})] : []
content {
forward = lookup(cookies.value, "forward", null)
whitelisted_names = lookup(cookies.value, "whitelisted_names", null)
}
}
}
}
dynamic "lambda_function_association" {
iterator = lambda_function_association
for_each = length(keys(lookup(ordered_cache_behavior.value, "lambda_function_association", {}))) > 0 ? [lookup(ordered_cache_behavior.value, "lambda_function_association", {})] : []
content {
event_type = lookup(lambda_function_association.value, "event_type", null)
lambda_arn = lookup(lambda_function_association.value, "lambda_arn", null)
include_body = lookup(lambda_function_association.value, "include_body", null)
}
}
}
}
dynamic "origin_group" {
iterator = origin_group
for_each = length(keys(lookup(var.cloudfront_distribution_stack[count.index], "origin_group", {}))) > 0 ? [lookup(var.cloudfront_distribution_stack[count.index], "origin_group", {})] : []
content {
origin_id = lookup(origin_group.value, "origin_id", null)
dynamic "failover_criteria" {
iterator = failover_criteria
for_each = length(keys(lookup(origin_group.value, "failover_criteria", {}))) > 0 ? [lookup(origin_group.value, "failover_criteria", {})] : []
content {
status_codes = lookup(failover_criteria.value, "status_codes", null)
}
}
dynamic "member" {
iterator = member
for_each = lookup(origin_group.value, "member", [])
content {
origin_id = lookup(member.value, "origin_id", null)
}
}
}
}
tags = merge(
{
Name = lookup(var.cloudfront_distribution_stack[count.index], "name", "${lower(var.name)}-cloudfront-distribution-${count.index + 1}-${lower(var.environment)}")
},
var.tags,
)
lifecycle {
create_before_destroy = true
ignore_changes = []
}
depends_on = [
aws_cloudfront_cache_policy.cloudfront_cache_policy,
aws_cloudfront_origin_request_policy.cloudfront_origin_request_policy,
aws_cloudfront_realtime_log_config.cloudfront_realtime_log_config
]
}