# The Google GCE cloud and Juju This document describes details specific to using your existing Google GCE cloud with Juju. > See more: [Google GCE](https://cloud.google.com/compute) When using this cloud with Juju, it is important to keep in mind that it is a (1) machine cloud and (2) not some other cloud. > See more: [Cloud differences](https://documentation.ubuntu.com/juju/2.9/reference/cloud.md#cloud-differences) As the differences related to (1) are already documented generically in the rest of the docs, here we record just those that follow from (2). ## Requirements: Permissions: Service Account Key Admin, Compute Instance Admin, and Compute Security Admin.
See more: [Google | Compute Engine IAM roles and permissions](https://cloud.google.com/compute/docs/access/iam). ## Notes on `juju add-cloud` Type in Juju: `gce` Name in Juju: `google` ## Notes on `juju add-credential` ### Authentication types #### `oauth2` Attributes: - client-id: client ID (required) - client-email: client e-mail address (required) - private-key: client secret (required) - project-id: project ID (required) #### `jsonfile` Attributes: - file: path to the .json file containing a service account key for your project Path (required) ### If you want to use environment variables: `CLOUDSDK_COMPUTE_REGION`

- `GOOGLE_APPLICATION_CREDENTIALS=` ## Cloud-specific model configuration keys ### base-image-path Base path to look for machine disk images. | | | |---------------|---------------| | type | string | | default value | schema.omit{} | | immutable | false | | mandatory | false | ## Supported constraints | [CONSTRAINT](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint) | | |---------------------------------------------------------------------------------------------------|-----------------------------------------------------| | conflicting: | `instance-type` vs. `[arch, cores, cpu-power, mem]` | | supported? | | | - [allocate-public-ip](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-allocate-public-ip) | ✓ | | - [arch](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-arch) | ✓ | | - [container](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-container) | ✓ | | - [cores](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-cores) | ✓ | | - [cpu-power](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-cpu-power) | ✓ | | - [image-id](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-image-id) | ✕ | | - [instance-role](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-instance-role) | ✕ | | - [instance-type](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-instance-type) | ✓ | | - [mem](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-mem) | ✓ | | - [root-disk](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-root-disk) | ✓ | | - [root-disk-source](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-root-disk-source) | ✕ | | - [spaces](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-spaces) | ✕ | | - [tags](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-tags) | ✕ | | - [virt-type](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-virt-type) | ✕ | | - [zones](https://documentation.ubuntu.com/juju/2.9/reference/constraint.md#constraint-zones) | ✓ | ## Supported placement directives | [PLACEMENT DIRECTIVE](https://documentation.ubuntu.com/juju/2.9/reference/placement-directive.md#placement-directive) | | |----------------------------------------------------------------------------------------------------|-----| | [](https://documentation.ubuntu.com/juju/2.9/reference/placement-directive.md#placement-directive-machine) | TBA | | [subnet=](https://documentation.ubuntu.com/juju/2.9/reference/placement-directive.md#placement-directive-subnet) | ✕ | | [system-id=](https://documentation.ubuntu.com/juju/2.9/reference/placement-directive.md#placement-directive-system-id) | ✕ | | [zone=](https://documentation.ubuntu.com/juju/2.9/reference/placement-directive.md#placement-directive-zone) | ✓ |