Aumentar o espaço de endereço de acesso a serviços particulares
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Nesta página, descrevemos como aumentar o espaço de endereço IP disponível para a configuração de acesso a serviços particulares que o AlloyDB usa para clusters e instâncias.
Quando você cria um cluster ou uma instância do AlloyDB em uma região que ainda não tem nenhum cluster ou instância, o AlloyDB cria uma sub-rede nessa região. Se o espaço de endereço IP disponível para o AlloyDB não for grande o suficiente para criar a sub-rede, a tentativa de criar o cluster ou a instância vai falhar. É preciso aumentar o espaço de endereços IP para resolver a escassez antes de tentar criar o cluster ou a instância novamente.
Selecione o projeto em que a rede VPC está localizada.
Selecione a rede VPC que contém sua conexão de acesso a serviços particulares.
Selecione a guia Acesso a serviços particulares.
Na guia Acesso a serviços particulares, selecione Intervalos de IP alocados para serviços.
Clique em Alocar intervalo de IP.
Insira um Nome e uma Descrição para o intervalo alocado.
Especifique um intervalo de IP para a alocação:
Para especificar um intervalo de endereços IP, selecione Personalizado e insira um bloco CIDR, como 192.168.0.0/16.
Para especificar o tamanho de um prefixo e permitir que o Google selecione um intervalo disponível, selecione Automático e insira um tamanho de prefixo, como 16.
Clique em Alocar para criar o intervalo alocado.
Na guia Acesso a serviços particulares, selecione a guia Conexões particulares com os serviços.
Clique em servicenetworking-googleapis-com.
Na caixa de diálogo Atualizar uma conexão particular, clique na caixa Alocação atribuída e selecione o intervalo de IP alocado adicional que você criou antes.
Use o comando gcloud config set project para definir o projeto padrão como
aquele em que sua rede VPC está localizada.
gcloud config set project PROJECT_ID
Em que PROJECT_ID é o ID do projeto em que
sua rede VPC reside.
Use o comando compute addresses create para criar outro intervalo de endereços IP alocado.
Para especificar um intervalo de endereços e um tamanho de prefixo (máscara de sub-rede), use os sinalizadores addresses e prefix-length. Por exemplo, para alocar o bloco CIDR 192.168.0.0/16, especifique 192.168.0.0 como endereço e 16 como tamanho de prefixo.
Para especificar apenas um tamanho de prefixo (máscara de sub-rede), basta usar a sinalização prefix-length. Quando você omite o intervalo de endereços,o Google Cloud
seleciona automaticamente um intervalo de endereços não utilizado na sua rede VPC. No exemplo a seguir, é selecionado um intervalo de endereços IP não utilizado com um tamanho de prefixo de 16 bits.
Substitua os marcadores a seguir pelos valores relevantes:
RESERVED_RANGE_NAME: é um nome para o intervalo alocado,
como additional-alloydb-range.
DESCRIPTION: é uma descrição para o intervalo, como
allocated to extend AlloyDB range.
VPC_NETWORK: o nome da rede VPC, como my-vpc-network.
O exemplo a seguir cria uma conexão privada com o Google para que as instâncias de VM na rede VPC default possam usar serviços privados para acessar serviços do Google compatíveis.
[[["Fácil de entender","easyToUnderstand","thumb-up"],["Meu problema foi resolvido","solvedMyProblem","thumb-up"],["Outro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Informações incorretas ou exemplo de código","incorrectInformationOrSampleCode","thumb-down"],["Não contém as informações/amostras de que eu preciso","missingTheInformationSamplesINeed","thumb-down"],["Problema na tradução","translationIssue","thumb-down"],["Outro","otherDown","thumb-down"]],["Última atualização 2025-09-04 UTC."],[[["\u003cp\u003eThis guide details how to increase the IP address space for AlloyDB's private services access configuration, crucial when creating new clusters or instances if the existing space is insufficient.\u003c/p\u003e\n"],["\u003cp\u003eIncreasing the IP address space involves two key steps: creating an additional allocated IP address range within your VPC network and then adding this new range to the existing private services access connection.\u003c/p\u003e\n"],["\u003cp\u003eTo ensure sufficient space for AlloyDB, the allocated IP range should have a prefix length of 16 or less, and the guide provides options for specifying the range manually or letting Google automatically select it.\u003c/p\u003e\n"],["\u003cp\u003eThe process can be completed using either the Google Cloud Console or the gcloud CLI, with detailed instructions provided for both methods.\u003c/p\u003e\n"],["\u003cp\u003eBefore you start, verify you have the necessary IAM roles and permissions, including \u003ccode\u003ecompute.networks.list\u003c/code\u003e, \u003ccode\u003ecompute.addresses.create\u003c/code\u003e, \u003ccode\u003ecompute.addresses.list\u003c/code\u003e, and \u003ccode\u003eservicenetworking.services.addPeering\u003c/code\u003e, in addition to the required AlloyDB roles.\u003c/p\u003e\n"]]],[],null,["# Increase private services access address space\n\nThis page describes how to increase the IP address space available to the\nprivate services access configuration that AlloyDB uses for\nclusters and instances.\n\nWhen you create an AlloyDB cluster or instance in a region that\ndoesn't yet have any clusters or instances, AlloyDB creates a\nsubnet in that region. If the existing IP address space available to\nAlloyDB is not large enough to create the subnet, your attempt to\ncreate the cluster or instance fails. You must increase the IP address space to\nresolve the address shortage before retrying to create the cluster or instance.\n\n\nBefore you begin\n----------------\n\n- The Google Cloud project you are using must have been [enabled to access AlloyDB](/alloydb/docs/project-enable-access).\n- You must have one of these IAM roles in the Google Cloud project you are using:\n - `roles/alloydb.admin` (the AlloyDB Admin predefined IAM role)\n - `roles/owner` (the Owner basic IAM role)\n - `roles/editor` (the Editor basic IAM role)\n\n If you don't have any of these roles, contact your Organization Administrator to request\n access.\n- To increase the IP address range, you also must have these IAM permissions:\n - `compute.networks.list`\n - `compute.addresses.create`\n - `compute.addresses.list`\n - `servicenetworking.services.addPeering`\n\n\u003cbr /\u003e\n\nProcedure\n---------\n\nTo increase the AlloyDB IP address space, you perform two operations:\n\n- Create an additional allocated IP address range in your VPC network.\n- Add the additional address range to the existing private services access connection in your VPC network.\n\n### Console\n\n1. Go to the VPC networks page in the Google Cloud console.\n\n [Go to the VPC networks page](https://console.cloud.google.com/networking/networks/list)\n2. Select the project where your VPC network resides.\n\n3. Select the VPC network that contains your existing private\n services access connection.\n\n4. Select the **Private services access** tab.\n\n5. In the **Private services access** tab, select the **Allocated IP\n ranges for services** tab.\n\n6. Click **Allocate IP range**.\n\n7. Enter a **Name** and **Description** for the allocated range.\n\n8. Specify an **IP range** for the allocation:\n\n | **Note:** To provide sufficient address space for AlloyDB, specify a prefix length of 16 or less.\n - To specify an IP address range, select **Custom** and then enter a CIDR block, such as `192.168.0.0/16`.\n - To specify a prefix length and let Google select an available range, select **Automatic** and then enter a prefix length, such as `16`.\n9. Click **Allocate** to create the allocated range.\n\n10. In the **Private service access** tab, select the **Private\n connections to services** tab.\n\n11. Click **servicenetworking-googleapis-com**.\n\n12. In the **Update a private connection** dialog, click the **Assigned allocation** box and then select the additional allocated IP range you created earlier.\n\n13. Click **Update** to update the connection.\n\n### gcloud\n\n\nTo use the gcloud CLI, you can\n[install and initialize](/sdk/docs/install) the Google Cloud CLI, or you\ncan use [Cloud Shell](/shell/docs/using-cloud-shell).\n\n\u003cbr /\u003e\n\n1. Use the `gcloud config set project` command to set the default project to\n the one where your VPC network resides.\n\n ```\n gcloud config set project PROJECT_ID\n ```\n\n Where \u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e is the ID of the project where\n your VPC network resides.\n2. Use the `compute addresses create` command to create an additional\n allocated IP address range.\n\n | **Note:** To provide sufficient address space for AlloyDB, specify a prefix length of 16 or less.\n - To specify an address range and a prefix length (subnet mask), use the\n `addresses` and `prefix-length` flags. For example, to allocate the CIDR\n block `192.168.0.0/16`, specify `192.168.0.0` for the address and `16`\n for the prefix length.\n\n ```\n gcloud compute addresses create RESERVED_RANGE_NAME \\\n --global \\\n --purpose=VPC_PEERING \\\n --addresses=192.168.0.0 \\\n --prefix-length=16 \\\n --description=\"DESCRIPTION\" \\\n --network=VPC_NETWORK\n ```\n - To specify just a prefix length (subnet mask), just use the\n `prefix-length` flag. When you omit the address range, Google Cloud\n automatically selects an unused address range in your VPC\n network. The following example selects an unused IP address range with a\n `16` bit prefix length.\n\n ```\n gcloud compute addresses create RESERVED_RANGE_NAME \\\n --global \\\n --purpose=VPC_PEERING \\\n --prefix-length=16 \\\n --description=\"DESCRIPTION\" \\\n --network=VPC_NETWORK\n ```\n\n Replace the following placeholders with relevant values:\n - \u003cvar translate=\"no\"\u003eRESERVED_RANGE_NAME\u003c/var\u003e: a name for the allocated range,\n such as `additional-alloydb-range`.\n\n - \u003cvar translate=\"no\"\u003eDESCRIPTION\u003c/var\u003e: a description for the range, such as\n `allocated to extend AlloyDB range`.\n\n - \u003cvar translate=\"no\"\u003eVPC_NETWORK\u003c/var\u003e: the name of your VPC\n network, such as `my-vpc-network`.\n\n The following example creates a private connection to Google so that the VM\n instances in the `default` VPC network can use private\n services access to reach Google services that support it. \n\n ```\n gcloud compute addresses create additional-alloydb-range \\\n --global \\\n --purpose=VPC_PEERING \\\n --prefix-length=16 \\\n --description=\"allocated to extend AlloyDB range\" \\\n --network=default\n ```\n3. Use the `services vpc-peerings list` command to get a list of IP ranges\n already allocated to your private services connection:\n\n ```\n gcloud services vpc-peerings list \\\n --service=servicenetworking.googleapis.com \\\n --network=VPC_NETWORK\n ```\n\n Where \u003cvar translate=\"no\"\u003eVPC_NETWORK\u003c/var\u003e is the name of your\n VPC network, such as `my-vpc-network`.\n\n The list of IP ranges already allocated to your private services\n connection appears after `reservedPeeringRanges`.\n4. Use the `services vpc-peerings update` command to add the additional\n address range to the private services connection.\n\n ```\n gcloud services vpc-peerings update \\\n --service=servicenetworking.googleapis.com \\\n --ranges=RESERVED_RANGE_NAME,EXISTING_RANGES_LIST \\\n --network=VPC_NETWORK\n ```\n\n Replace the following placeholders with relevant values:\n - \u003cvar translate=\"no\"\u003eRESERVED_RANGE_NAME\u003c/var\u003e: the name of the additional\n allocated IP address range you created.\n\n - \u003cvar translate=\"no\"\u003eEXISTING_RANGES_LIST\u003c/var\u003e: a comma-separated list of the\n IP address ranges already allocated to the private services\n connection.\n\n - \u003cvar translate=\"no\"\u003eVPC_NETWORK\u003c/var\u003e: the name of your VPC\n network.\n\n The command initiates a long-running operation, returning an operation\n name.\n5. Check whether the operation was successful.\n\n ```\n gcloud services vpc-peerings operations describe OPERATION_NAME\n ```\n\n Replace \u003cvar translate=\"no\"\u003eOPERATION_NAME\u003c/var\u003e with the operation name that\n was returned from the previous step."]]
