Azure Database SQL Firewall Rule

azurerm_sql_firewall_rule (Terraform)

The SQL Firewall Rule in Database can be configured in Terraform with the resource name azurerm_sql_firewall_rule. The following sections describe 10 examples of how to use the resource and its parameters.

Example Usage from GitHub

gayatri1030/azuresqlserver

resource "azurerm_sql_firewall_rule" "allow-azure-services" {
  depends_on = [
    azurerm_mssql_server.db-server
  ]
  count               = var.sql_firewall_allow_azure_services ? 1 : 0
  name                = "Allow Azure Services"

higorbarbosa/treinamento-terraform-azure

resource "azurerm_sql_firewall_rule" "sqlfirewall-myip" {
  name                = "personal-ip"
  resource_group_name = azurerm_resource_group.rg.name
  server_name         = azurerm_sql_server.sqlserver.name
  start_ip_address    = data.http.ip_address.body
  end_ip_address      = data.http.ip_address.body

Kakaranish/eszop-infra

resource "azurerm_sql_firewall_rule" "firewall_rule" {
  depends_on = [azurerm_sql_server.sql_server]

  name                = "InitializerIp"
  resource_group_name = var.resource_group
  server_name         = var.server_name

gustcol/Canivete

resource "azurerm_sql_firewall_rule" "validrule1" {
  name                = "validrule1"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_sql_server.example.name
  start_ip_address    = "10.0.17.62"
  end_ip_address      = "10.0.17.62"

nhs-digital-gp-it-futures/GPITBuyingCatalogue

resource "azurerm_sql_firewall_rule" "sql_azure_services" {
  name                = "azure_services"
  resource_group_name = var.rg_name
  server_name         = azurerm_sql_server.sql_server.name
  start_ip_address    = "0.0.0.0"
  end_ip_address      = "0.0.0.0"

drhbigdave/ps-integrate-data-azure

resource "azurerm_sql_firewall_rule" "synapse_sql_server_fw_rule_drh" {
  count               = var.synapse_sql_server_count
  name                = "davids_home"
  resource_group_name = azurerm_resource_group.vnet_infra.name
  server_name         = azurerm_sql_server.synapse_sql_server[count.index].name
  start_ip_address    = data.azurerm_key_vault_secret.davids_home_ip.value

nhs-digital-gp-it-futures/platform-tf-modules

resource "azurerm_sql_firewall_rule" "sql_azure_services" {
  name                = "azure_services"
  resource_group_name = var.rg_name
  server_name         = azurerm_sql_server.sql_server.name
  start_ip_address    = "0.0.0.0"
  end_ip_address      = "0.0.0.0"

liatrio/azure-data-factory-poc

resource "azurerm_sql_firewall_rule" "azure_services" {
  name                = "azure-services"
  resource_group_name = var.resource_group
  server_name         = azurerm_mssql_server.this.name
  start_ip_address    = "0.0.0.0"
  end_ip_address      = "0.0.0.0"

melscoop-test/check

resource "azurerm_sql_firewall_rule" "firewall_rule_good" {
  name                = "FirewallRule1"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_sql_server.sql_server_good.name
  start_ip_address    = "10.0.17.62"
  end_ip_address      = "10.0.17.62"

SnidermanIndustries/checkov-fork

resource "azurerm_sql_firewall_rule" "firewall_rule_good" {
  name                = "FirewallRule1"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_sql_server.sql_server_good.name
  start_ip_address    = "10.0.17.62"
  end_ip_address      = "10.0.17.62"

Security Best Practices for azurerm_sql_firewall_rule

There is 1 setting in azurerm_sql_firewall_rule that should be taken care of for security reasons. The following section explain an overview and example code.

Ensure database firewalls do not permit public access

It is better to restrict IP address ranges that can access the database by firewall rules. If both start_ip_address and end_ip_address are set to 0.0.0.0, it blocks connections from the Internet and accepts connections from all Azure datacenter IP addresses.

Parameters

• end_ip_address required - string
• id optional computed - string
• name required - string
• resource_group_name required - string
• server_name required - string
• start_ip_address required - string
• timeouts single block
  • create optional - string
  • delete optional - string
  • read optional - string
  • update optional - string

Explanation in Terraform Registry

Allows you to manage an Azure SQL Firewall Rule

Tips: Best Practices for The Other Azure Database Resources

In addition to the azurerm_mariadb_firewall_rule, Azure Database has the other resources that should be configured for security reasons. Please check some examples of those resources and precautions.

azurerm_mariadb_firewall_rule

Ensure database firewalls do not permit public access

It is better to restrict IP address ranges that can access the database by firewall rules. If both start_ip_address and end_ip_address are set to 0.0.0.0, it blocks connections from the Internet and accepts connections from all Azure datacenter IP addresses.

azurerm_mariadb_server

Ensure that access to Azure SQL Database is restricted

It is better to disable public access to the database to avoid unwilling communications with unknown services if not required.

azurerm_mssql_database_extended_auditing_policy

Ensure to configure retention periods of database auditing to enough duration

It is better to configure retention periods of database auditing to enough duration. It would be better to set greater than at least 90 days.

azurerm_mssql_server

Ensure to enable auditing on Azure SQL databases

It is better to enable auditing on Azure SQL databases. It helps you maintain regulatory compliance, monitor the activities indicating unexpected incidents or suspected security violations.

azurerm_mssql_server_security_alert_policy

Ensure to configure at least one email address for threat alerts

It is better to configure at least one email address for threat alerts. SQL Server is able to send alerts for threat detection via emails and it could support us to notice the incident on time.

azurerm_mysql_firewall_rule

Ensure database firewalls do not permit public access

It is better to restrict IP address ranges that can access the database by firewall rules. If both start_ip_address and end_ip_address are set to 0.0.0.0, it blocks connections from the Internet and accepts connections from all Azure datacenter IP addresses.

azurerm_mysql_server

Ensure to disable public access to database

It is better to disable public access to the database to avoid unwilling communications with unknown services if not required.

azurerm_postgresql_firewall_rule

Ensure database firewalls do not permit public access

It is better to restrict IP address ranges that can access the database by firewall rules. If both start_ip_address and end_ip_address are set to 0.0.0.0, it blocks connections from the Internet and accepts connections from all Azure datacenter IP addresses.

azurerm_postgresql_server

Ensure to disable public access to database

It is better to disable public access to the database to avoid unwilling communications with unknown services if not required.

azurerm_sql_server

Ensure to enable auditing on Azure SQL databases

It is better to enable auditing on Azure SQL databases. It helps you maintain regulatory compliance, monitor the activities indicating unexpected incidents or suspected security violations.