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@onnimonni
Created March 13, 2017 10:03
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s3 replicated bucket with terraform
# Create all variables used in this Terraform run
variable "aws_access_key" {}
variable "aws_access_secret_key" {}
variable "aws_bucket_name" {}
variable "aws_region_main" {
default = "eu-west-1"
}
variable "aws_region_replica" {
default = "eu-central-1"
}
# Use AWS credentials
provider "aws" {
access_key = "${var.aws_access_key}"
secret_key = "${var.aws_access_secret_key}"
}
# Give Different aliases for aws regions
provider "aws" {
alias = "west"
region = "eu-west-1"
}
provider "aws" {
alias = "central"
region = "eu-central-1"
}
# Create replication role
resource "aws_iam_role" "replication" {
name = "tf-iam-role-replication-12345"
assume_role_policy = <<POLICY
{
"Version": "2012-10-17",
"Statement": [
{
"Action": "sts:AssumeRole",
"Principal": {
"Service": "s3.amazonaws.com"
},
"Effect": "Allow",
"Sid": ""
}
]
}
POLICY
}
resource "aws_iam_policy" "replication" {
name = "tf-iam-role-policy-replication-12345"
policy = <<POLICY
{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"s3:GetReplicationConfiguration",
"s3:ListBucket"
],
"Effect": "Allow",
"Resource": [
"${aws_s3_bucket.uploads.arn}"
]
},
{
"Action": [
"s3:GetObjectVersion",
"s3:GetObjectVersionAcl"
],
"Effect": "Allow",
"Resource": [
"${aws_s3_bucket.uploads.arn}/*"
]
},
{
"Action": [
"s3:ReplicateObject",
"s3:ReplicateDelete"
],
"Effect": "Allow",
"Resource": "${aws_s3_bucket.replica.arn}/*"
}
]
}
POLICY
}
resource "aws_iam_policy_attachment" "replication" {
name = "tf-iam-role-attachment-replication-12345"
roles = ["${aws_iam_role.replication.name}"]
policy_arn = "${aws_iam_policy.replication.arn}"
}
# This is the replication bucket for uploads
resource "aws_s3_bucket" "replica" {
provider = "aws.central"
bucket = "${var.aws_bucket_name}-replica-1"
region = "${var.aws_region_replica}"
acl = "public-read"
# Enable versioning so that files can be replicated
versioning {
enabled = true
}
# Remove old versions of images after 15 days
lifecycle_rule {
prefix = ""
enabled = true
noncurrent_version_expiration {
days = 15
}
}
}
# This is the main s3 bucket for uploads
resource "aws_s3_bucket" "uploads" {
provider = "aws.west"
bucket = "${var.aws_bucket_name}"
acl = "public-read"
region = "${var.aws_region_main}"
# Enable versioning so that files can be replicated
versioning {
enabled = true
}
# Remove old versions after 15 days, these shouldn't happen that often because
# humanmade/s3-uploads will rename files which have same name
lifecycle_rule {
prefix = ""
enabled = true
noncurrent_version_expiration {
days = 15
}
}
replication_configuration {
role = "${aws_iam_role.replication.arn}"
rules {
id = "replica"
prefix = ""
status = "Enabled"
destination {
bucket = "${aws_s3_bucket.replica.arn}"
storage_class = "STANDARD"
}
}
}
}
resource "aws_iam_user" "uploads_user" {
name = "${var.aws_bucket_name}-user"
}
resource "aws_iam_access_key" "uploads_user" {
user = "${aws_iam_user.uploads_user.name}"
}
resource "aws_iam_user_policy" "wp_uploads_policy" {
name = "WordPress-S3-Uploads"
user = "${aws_iam_user.uploads_user.name}"
# S3 policy from humanmade/s3-uploads for WordPress uploads
policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "Stmt1392016154000",
"Effect": "Allow",
"Action": [
"s3:AbortMultipartUpload",
"s3:DeleteObject",
"s3:GetBucketAcl",
"s3:GetBucketLocation",
"s3:GetBucketPolicy",
"s3:GetObject",
"s3:GetObjectAcl",
"s3:ListBucket",
"s3:ListBucketMultipartUploads",
"s3:ListMultipartUploadParts",
"s3:PutObject",
"s3:PutObjectAcl"
],
"Resource": [
"arn:aws:s3:::${aws_s3_bucket.uploads.bucket}/*"
]
},
{
"Sid": "AllowRootAndHomeListingOfBucket",
"Action": ["s3:ListBucket"],
"Effect": "Allow",
"Resource": ["arn:aws:s3:::${aws_s3_bucket.uploads.bucket}"],
"Condition":{"StringLike":{"s3:prefix":["*"]}}
}
]
}
EOF
}
# These output the created access keys and bucket name
output "s3-bucket-name" {
value = "${var.aws_bucket_name}"
}
output "s3-user-access-key" {
value = "${aws_iam_access_key.uploads_user.id}"
}
output "s3-user-secret-key" {
value = "${aws_iam_access_key.uploads_user.secret}"
}
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