ipv6AccessConfigs.externalIpv6 is ignored

[ohardy]

Describe what happened

Hello,

ipv6AccessConfigs.externalIpv6 is ignored in compute.Instance call

I create an IP address

const publicIpV6 = new compute.Address('test', {
    addressType: 'EXTERNAL',
    name: 'test',
    subnetwork,
    ipVersion: 'IPV6',
    ipv6EndpointType: 'VM',
  });

And I use it in compute.Instance creation

networkInterfaces: [
      {
        accessConfigs: [
          {
            natIp: publicIp.address,
          },
        ],
        ipv6AccessConfigs: [
          {
            name: publicIpV6.name,
            externalIpv6: publicIpV6.address,
            networkTier: 'PREMIUM',
          },
        ],
        networkIp: staticIp.address,
        subnetwork,
        stackType: 'IPV4_IPV6',
      },
    ],

GCP don't use the provided IP address but use an ephemeral one. If I go in GCP console, I can edit the VM and select this reserved IP address.

Any idea why pulumi just ignore it ?

Thanks in advance,
Olivier

Sample program

const publicIpV6 = new compute.Address('test', {
    addressType: 'EXTERNAL',
    name: 'test',
    subnetwork,
    ipVersion: 'IPV6',
    ipv6EndpointType: 'VM',
  });

And I use it in compute.Instance creation

networkInterfaces: [
      {
        accessConfigs: [
          {
            natIp: publicIp.address,
          },
        ],
        ipv6AccessConfigs: [
          {
            name: publicIpV6.name,
            externalIpv6: publicIpV6.address,
            networkTier: 'PREMIUM',
          },
        ],
        networkIp: staticIp.address,
        subnetwork,
        stackType: 'IPV4_IPV6',
      },
    ],

Log output

No response

Affected Resource(s)

No response

Output of pulumi about

CLI
Version 3.148.0
Go Version go1.23.5
Go Compiler gc

Plugins
KIND NAME VERSION
language nodejs 3.148.0-dev.0

Host
OS darwin
Version 15.3
Arch arm64

This project is written in nodejs: executable='/opt/homebrew/bin/node' version='v23.7.0'

Current Stack: ----/----/global

TYPE URN
pulumi:pulumi:Stack urn:pulumi:global::gcp-bastion::pulumi:pulumi:Stack::gcp-bastion-global
pulumi:providers:pulumi urn:pulumi:global::gcp-bastion::pulumi:providers:pulumi::default
pulumi:providers:gcp urn:pulumi:global::gcp-bastion::pulumi:providers:gcp::default_8_18_0
gcp:compute/disk:Disk urn:pulumi:global::gcp-bastion::gcp:compute/disk:Disk::bastion-wireguard
gcp:compute/address:Address urn:pulumi:global::gcp-bastion::gcp:compute/address:Address::bastion-ipv4
pulumi:pulumi:StackReference urn:pulumi:global::gcp-bastion::pulumi:pulumi:StackReference::----/----/host
gcp:compute/address:Address urn:pulumi:global::gcp-bastion::gcp:compute/address:Address::bastion
gcp:compute/address:Address urn:pulumi:global::gcp-bastion::gcp:compute/address:Address::bastion-ipv6
gcp:compute/instance:Instance urn:pulumi:global::gcp-bastion::gcp:compute/instance:Instance::bastion

Found no pending operations associated with -----/global

Backend
Name pulumi.com
URL https://app.pulumi.com/----
User ----
Organizations ---, ----
Token type personal

Pulumi locates its logs in /var/folders/g4/w864n44d0jx2225wqt31h4mr0000gn/T/ by default

Additional context

No response

Contributing

Vote on this issue by adding a 👍 reaction.
To contribute a fix for this issue, leave a comment (and link to your pull request, if you've opened one already).