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[v14] [gcp] support project discovery (#47566)
* [gcp] support project discovery
This PR extends Teleport discovery service to be able to support find all GKE and VM servers in every project a user has access to.
```
discovery_service:
enabled: true
discovery_group: "test"
gcp:
- types: ["gke"]
locations: ["*"]
project_ids: ["*"]
tags:
'*': '*'
```
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| /* | ||
| * Teleport | ||
| * Copyright (C) 2024 Gravitational, Inc. | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Affero General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package gcp | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/gravitational/trace" | ||
| "google.golang.org/api/cloudresourcemanager/v1" | ||
| ) | ||
|
|
||
| // Project is a GCP project. | ||
| type Project struct { | ||
| // ID is the project ID. | ||
| ID string | ||
| // Name is the project name. | ||
| Name string | ||
| } | ||
|
|
||
| // ProjectsClient is an interface to interact with GCP Projects API. | ||
| type ProjectsClient interface { | ||
| // ListProjects lists the GCP projects that the authenticated user has access to. | ||
| ListProjects(ctx context.Context) ([]Project, error) | ||
| } | ||
|
|
||
| // ProjectsClientConfig is the client configuration for ProjectsClient. | ||
| type ProjectsClientConfig struct { | ||
| // Client is the GCP client for resourcemanager service. | ||
| Client *cloudresourcemanager.Service | ||
| } | ||
|
|
||
| // CheckAndSetDefaults check and set defaults for ProjectsClientConfig. | ||
| func (c *ProjectsClientConfig) CheckAndSetDefaults(ctx context.Context) (err error) { | ||
| if c.Client == nil { | ||
| c.Client, err = cloudresourcemanager.NewService(ctx) | ||
| if err != nil { | ||
| return trace.Wrap(err) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // NewProjectsClient returns a ProjectsClient interface wrapping resourcemanager.ProjectsClient | ||
| // for interacting with GCP Projects API. | ||
| func NewProjectsClient(ctx context.Context) (ProjectsClient, error) { | ||
| var cfg ProjectsClientConfig | ||
| client, err := NewProjectsClientWithConfig(ctx, cfg) | ||
| return client, trace.Wrap(err) | ||
| } | ||
|
|
||
| // NewProjectsClientWithConfig returns a ProjectsClient interface wrapping resourcemanager.ProjectsClient | ||
| // for interacting with GCP Projects API. | ||
| func NewProjectsClientWithConfig(ctx context.Context, cfg ProjectsClientConfig) (ProjectsClient, error) { | ||
| if err := cfg.CheckAndSetDefaults(ctx); err != nil { | ||
| return nil, trace.Wrap(err) | ||
| } | ||
| return &projectsClient{cfg}, nil | ||
| } | ||
|
|
||
| type projectsClient struct { | ||
| ProjectsClientConfig | ||
| } | ||
|
|
||
| // ListProjects lists the GCP Projects that the authenticated user has access to. | ||
| func (g *projectsClient) ListProjects(ctx context.Context) ([]Project, error) { | ||
|
|
||
| var pageToken string | ||
| var projects []Project | ||
| for { | ||
| projectsCall, err := g.Client.Projects.List().PageToken(pageToken).Do() | ||
| if err != nil { | ||
| return nil, trace.Wrap(err) | ||
| } | ||
| for _, project := range projectsCall.Projects { | ||
| projects = append(projects, | ||
| Project{ | ||
| ID: project.ProjectId, | ||
| Name: project.Name, | ||
| }, | ||
| ) | ||
| } | ||
| if projectsCall.NextPageToken == "" { | ||
| break | ||
| } | ||
| pageToken = projectsCall.NextPageToken | ||
| } | ||
|
|
||
| return projects, nil | ||
| } |
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