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org_users_auth.tf
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org_users_auth.tf
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## create aws provider
provider "aws" {
region = var.region
}
## create region input variable
variable "region" {
default = "us-east-1"
type = string
}
## create stage input variable
variable "stage" {
default = "dev"
type = string
}
## create cognito user pool with email as alias, disabled self-service sign-up and 10 developer only custom attributes starting with the letter o and ending with the number 1-10
resource "aws_cognito_user_pool" "OrgUserPool" {
##add lifecycle to ignore changes to schema
lifecycle {
ignore_changes = [schema]
}
admin_create_user_config {
allow_admin_create_user_only = true
}
name = "OrgUserPool-${var.stage}"
alias_attributes = ["email"]
schema {
name = "o1"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o2"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o3"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o4"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o5"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o6"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o7"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o8"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o9"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
schema {
name = "o10"
attribute_data_type = "String"
developer_only_attribute = true
mutable = true
}
}
## create cognito app client with no client secret, implicit grant, 5 minute token expiration, and 10 minute refresh token expiration
resource "aws_cognito_user_pool_client" "OrgUserPoolClient" {
name = "OrgUserPoolClient-${var.stage}"
user_pool_id = aws_cognito_user_pool.OrgUserPool.id
generate_secret = false
explicit_auth_flows = ["ALLOW_USER_SRP_AUTH","ALLOW_REFRESH_TOKEN_AUTH","ALLOW_CUSTOM_AUTH","ALLOW_USER_PASSWORD_AUTH","ALLOW_ADMIN_USER_PASSWORD_AUTH"]
allowed_oauth_flows = ["implicit"]
allowed_oauth_flows_user_pool_client = true
allowed_oauth_scopes = ["phone", "email", "openid", "profile", "aws.cognito.signin.user.admin"]
callback_urls = ["https://localhost:3000"]
logout_urls = ["https://localhost:3000"]
supported_identity_providers = ["COGNITO"]
refresh_token_validity = 10
access_token_validity = 5
}
## create cognito identity pool that does not allow unauthenticated identities and has cognito user pool as provider
resource "aws_cognito_identity_pool" "OrgUserIdentityPool" {
identity_pool_name = "OrgUserIdentityPool-${var.stage}"
allow_unauthenticated_identities = false
cognito_identity_providers {
client_id = aws_cognito_user_pool_client.OrgUserPoolClient.id
provider_name = aws_cognito_user_pool.OrgUserPool.endpoint
server_side_token_check = true
}
}
## create authenticated role with cognito identity pool as principal allowing lambda invoke function url if function name starts with or-
resource "aws_iam_role" "OrgUserAuthenticatedRole" {
name = "OrgUserAuthenticatedRole-${var.stage}"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Action = "sts:AssumeRoleWithWebIdentity"
Principal = {
Federated = "cognito-identity.amazonaws.com"
}
Condition = {
StringEquals = {
"cognito-identity.amazonaws.com:aud" = aws_cognito_identity_pool.OrgUserIdentityPool.id
}
"ForAnyValue:StringLike" = {
"cognito-identity.amazonaws.com:amr" = "authenticated"
}
}
Effect = "Allow"
}
]
})
inline_policy {
name = "LambdaInvokePolicy-${var.stage}"
policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Action = [
"lambda:InvokeFunctionUrl"
]
Effect = "Allow"
Resource = [
"arn:aws:lambda:${var.region}:*:function:or-*"
]
}
]
})
}
}
## create lambda invoke policy allowing lambda invoke function url if function name starts with or-
resource "aws_iam_policy" "LambdaInvokePolicy" {
name = "LambdaInvokePolicy-${var.stage}"
policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"lambda:InvokeFunction"
],
"Effect": "Allow",
"Resource": [
"arn:aws:lambda:${var.region}:*:function:or-*"
]
}
]
}
EOF
}
## create lambda invoke policy attachment for authenticated role
resource "aws_iam_role_policy_attachment" "LambdaInvokePolicyAttachment" {
role = aws_iam_role.OrgUserAuthenticatedRole.name
policy_arn = aws_iam_policy.LambdaInvokePolicy.arn
}
## create cognito identity pool roles attachment
resource "aws_cognito_identity_pool_roles_attachment" "OrgUserIdentityPoolRolesAttachment" {
identity_pool_id = aws_cognito_identity_pool.OrgUserIdentityPool.id
roles = {
authenticated = aws_iam_role.OrgUserAuthenticatedRole.arn
}
}