forked from cloudposse/terraform-aws-dynamic-subnets
-
Notifications
You must be signed in to change notification settings - Fork 0
/
private.tf
103 lines (90 loc) · 2.66 KB
/
private.tf
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
module "private_label" {
source = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.17.0"
enabled = var.enabled
context = module.label.context
attributes = compact(concat(module.label.attributes, ["private"]))
tags = merge(
module.label.tags,
var.private_subnets_additional_tags,
map(var.subnet_type_tag_key, format(var.subnet_type_tag_value_format, "private"))
)
}
locals {
private_subnet_count = var.max_subnet_count == 0 ? length(flatten(data.aws_availability_zones.available.*.names)) : var.max_subnet_count
private_network_acl_enabled = signum(length(var.private_network_acl_id)) == 0 ? 1 : 0
}
resource "aws_subnet" "private" {
count = var.enabled ? local.availability_zones_count : 0
vpc_id = join("", data.aws_vpc.default.*.id)
availability_zone = element(var.availability_zones, count.index)
cidr_block = cidrsubnet(
signum(length(var.cidr_block)) == 1 ? var.cidr_block : join("", data.aws_vpc.default.*.cidr_block),
ceil(log(local.private_subnet_count * 2, 2)),
count.index
)
tags = merge(
module.private_label.tags,
{
"Name" = format(
"%s%s%s",
module.private_label.id,
var.delimiter,
replace(
element(var.availability_zones, count.index),
"-",
var.delimiter
)
)
}
)
lifecycle {
# Ignore tags added by kops or kubernetes
ignore_changes = [tags.kubernetes, tags.SubnetType]
}
}
resource "aws_route_table" "private" {
count = var.enabled ? local.availability_zones_count : 0
vpc_id = join("", data.aws_vpc.default.*.id)
tags = merge(
module.private_label.tags,
{
"Name" = format(
"%s%s%s",
module.private_label.id,
var.delimiter,
replace(
element(var.availability_zones, count.index),
"-",
var.delimiter
)
)
}
)
}
resource "aws_route_table_association" "private" {
count = var.enabled ? local.availability_zones_count : 0
subnet_id = element(aws_subnet.private.*.id, count.index)
route_table_id = element(aws_route_table.private.*.id, count.index)
}
resource "aws_network_acl" "private" {
count = var.enabled ? local.private_network_acl_enabled : 0
vpc_id = var.vpc_id
subnet_ids = aws_subnet.private.*.id
egress {
rule_no = 100
action = "allow"
cidr_block = "0.0.0.0/0"
from_port = 0
to_port = 0
protocol = "-1"
}
ingress {
rule_no = 100
action = "allow"
cidr_block = "0.0.0.0/0"
from_port = 0
to_port = 0
protocol = "-1"
}
tags = module.private_label.tags
}