-
Notifications
You must be signed in to change notification settings - Fork 1
/
replication.tf
139 lines (115 loc) · 3.9 KB
/
replication.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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
#---------------------------------------------------------------------------------------------------
# KMS Key to Encrypt S3 Bucket
#---------------------------------------------------------------------------------------------------
resource "aws_kms_key" "replica" {
provider = aws.replica
description = "Encryption of s3 bucket ${var.backends_bucket_name} replica"
deletion_window_in_days = 7
enable_key_rotation = true
tags = local.tags
}
resource "aws_kms_alias" "replica" {
provider = aws.replica
target_key_id = aws_kms_key.replica.id
name = "alias/${var.backends_bucket_name}-bucket-replica"
}
#---------------------------------------------------------------------------------------------------
# IAM Role for Replication
# https://docs.aws.amazon.com/AmazonS3/latest/dev/crr-replication-config-for-kms-objects.html
#---------------------------------------------------------------------------------------------------
resource "aws_iam_role" "replication" {
name = "${var.backends_bucket_name}-bucket-replication"
assume_role_policy = <<POLICY
{
"Version": "2012-10-17",
"Statement": [
{
"Action": "sts:AssumeRole",
"Principal": {
"Service": "s3.amazonaws.com"
},
"Effect": "Allow"
}
]
}
POLICY
tags = local.tags
}
resource "aws_iam_policy" "replication" {
name = "${var.backends_bucket_name}-bucket-replication"
policy = templatefile("${path.module}/templates/replica_policy.json.tmpl", {
tfstate_backends_region = data.aws_region.tfstate_backends.name
tfstate_backends_bucket_arn = aws_s3_bucket.tfstate_backends.arn
tfstate_backends_kms_key_arn = aws_kms_key.tfstate_backends.arn
replica_region = data.aws_region.replica.name
replica_bucket_arn = aws_s3_bucket.replica.arn
replica_kms_key_arn = aws_kms_key.replica.arn
})
}
resource "aws_iam_policy_attachment" "replication" {
name = "${var.backends_bucket_name}-bucket-replication"
roles = [aws_iam_role.replication.name]
policy_arn = aws_iam_policy.replication.arn
}
#---------------------------------------------------------------------------------------------------
# Bucket Policies
#---------------------------------------------------------------------------------------------------
data "aws_iam_policy_document" "replica_force_ssl" {
statement {
sid = "AllowSSLRequestsOnly"
actions = ["s3:*"]
effect = "Deny"
resources = [
aws_s3_bucket.replica.arn,
"${aws_s3_bucket.replica.arn}/*"
]
condition {
test = "Bool"
variable = "aws:SecureTransport"
values = ["false"]
}
principals {
type = "*"
identifiers = ["*"]
}
}
}
#---------------------------------------------------------------------------------------------------
# Buckets
#---------------------------------------------------------------------------------------------------
data "aws_region" "tfstate_backends" {
}
data "aws_region" "replica" {
provider = aws.replica
}
resource "aws_s3_bucket" "replica" {
provider = aws.replica
bucket = "${var.backends_bucket_name}-replica"
force_destroy = var.buckets_force_destroy
tags = local.tags
}
resource "aws_s3_bucket_acl" "replica" {
provider = aws.replica
bucket = aws_s3_bucket.replica.id
acl = "private"
}
resource "aws_s3_bucket_versioning" "replica" {
provider = aws.replica
bucket = aws_s3_bucket.replica.id
versioning_configuration {
status = "Enabled"
}
}
resource "aws_s3_bucket_public_access_block" "replica" {
provider = aws.replica
bucket = aws_s3_bucket.replica.id
block_public_acls = true
block_public_policy = true
ignore_public_acls = true
restrict_public_buckets = true
}
resource "aws_s3_bucket_policy" "replica_force_ssl" {
provider = aws.replica
bucket = aws_s3_bucket.replica.id
policy = data.aws_iam_policy_document.replica_force_ssl.json
}