using Azure.Identity;
using Azure.ResourceManager;
using Azure.ResourceManager.PostgreSql;
using Azure.ResourceManager.PostgreSql.FlexibleServers;
ArmClient client = new ArmClient(new DefaultAzureCredential());
Resource Hierarchy
Subscription
└── ResourceGroup
└── PostgreSqlFlexibleServer # PostgreSQL Flexible Server instance
├── PostgreSqlFlexibleServerDatabase # Database within the server
├── PostgreSqlFlexibleServerFirewallRule # IP firewall rules
├── PostgreSqlFlexibleServerConfiguration # Server parameters
├── PostgreSqlFlexibleServerBackup # Backup information
├── PostgreSqlFlexibleServerActiveDirectoryAdministrator # Entra ID admin
└── PostgreSqlFlexibleServerVirtualEndpoint # Read replica endpoints
Core Workflows
1. Create PostgreSQL Flexible Server
using System;
using Azure.ResourceManager.PostgreSql.FlexibleServers;
using Azure.ResourceManager.PostgreSql.FlexibleServers.Models;
ResourceGroupResource resourceGroup = await client
.GetDefaultSubscriptionAsync()
.Result
.GetResourceGroupAsync("my-resource-group");
PostgreSqlFlexibleServerCollection servers = resourceGroup.GetPostgreSqlFlexibleServers();
PostgreSqlFlexibleServerData data = new PostgreSqlFlexibleServerData(AzureLocation.EastUS)
{
Sku = new PostgreSqlFlexibleServerSku("Standard_D2ds_v4", PostgreSqlFlexibleServerSkuTier.GeneralPurpose),
AdministratorLogin = "pgadmin",
AdministratorLoginPassword = Environment.GetEnvironmentVariable("POSTGRES_ADMIN_PASSWORD") ?? throw new InvalidOperationException("POSTGRES_ADMIN_PASSWORD is required"),
Version = PostgreSqlFlexibleServerVersion.Ver16,
Storage = new PostgreSqlFlexibleServerStorage
{
StorageSizeInGB = 128,
AutoGrow = StorageAutoGrow.Enabled,
Tier = PostgreSqlStorageTierName.P30
},
Backup = new PostgreSqlFlexibleServerBackupProperties
{
BackupRetentionDays = 7,
GeoRedundantBackup = PostgreSqlFlexibleServerGeoRedundantBackupEnum.Disabled
},
HighAvailability = new PostgreSqlFlexibleServerHighAvailability
{
Mode = PostgreSqlFlexibleServerHighAvailabilityMode.ZoneRedundant,
StandbyAvailabilityZone = "2"
},
AvailabilityZone = "1",
AuthConfig = new PostgreSqlFlexibleServerAuthConfig
{
ActiveDirectoryAuth = PostgreSqlFlexibleServerActiveDirectoryAuthEnum.Enabled,
PasswordAuth = PostgreSqlFlexibleServerPasswordAuthEnum.Enabled
}
};
ArmOperation<PostgreSqlFlexibleServerResource> operation = await servers
.CreateOrUpdateAsync(WaitUntil.Completed, "my-postgresql-server", data);
PostgreSqlFlexibleServerResource server = operation.Value;
Console.WriteLine($"Server created: {server.Data.FullyQualifiedDomainName}");
// List servers in resource group
await foreach (PostgreSqlFlexibleServerResource server in resourceGroup.GetPostgreSqlFlexibleServers())
{
Console.WriteLine($"Server: {server.Data.Name}");
Console.WriteLine($" FQDN: {server.Data.FullyQualifiedDomainName}");
Console.WriteLine($" Version: {server.Data.Version}");
Console.WriteLine($" State: {server.Data.State}");
Console.WriteLine($" SKU: {server.Data.Sku.Name} ({server.Data.Sku.Tier})");
Console.WriteLine($" HA: {server.Data.HighAvailability?.Mode}");
}
// List databases in server
await foreach (PostgreSqlFlexibleServerDatabaseResource db in server.GetPostgreSqlFlexibleServerDatabases())
{
Console.WriteLine($"Database: {db.Data.Name}");
}
PostgreSqlFlexibleServerResource server = await resourceGroup
.GetPostgreSqlFlexibleServerAsync("my-postgresql-server");
// Stop server (saves costs when not in use)
await server.StopAsync(WaitUntil.Completed);
// Start server
await server.StartAsync(WaitUntil.Completed);
// Restart server
await server.RestartAsync(WaitUntil.Completed, new PostgreSqlFlexibleServerRestartParameter
{
RestartWithFailover = true,
FailoverMode = PostgreSqlFlexibleServerFailoverMode.PlannedFailover
});
10. Update Server (Scale)
PostgreSqlFlexibleServerResource server = await resourceGroup
.GetPostgreSqlFlexibleServerAsync("my-postgresql-server");
PostgreSqlFlexibleServerPatch patch = new PostgreSqlFlexibleServerPatch
{
Sku = new PostgreSqlFlexibleServerSku("Standard_D4ds_v4", PostgreSqlFlexibleServerSkuTier.GeneralPurpose),
Storage = new PostgreSqlFlexibleServerStorage
{
StorageSizeInGB = 256,
Tier = PostgreSqlStorageTierName.P40
}
};
ArmOperation<PostgreSqlFlexibleServerResource> operation = await server
.UpdateAsync(WaitUntil.Completed, patch);
11. Delete Server
PostgreSqlFlexibleServerResource server = await resourceGroup
.GetPostgreSqlFlexibleServerAsync("my-postgresql-server");
await server.DeleteAsync(WaitUntil.Completed);