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resource.go
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resource.go
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rulegen
import (
"fmt"
"github.com/GoogleCloudPlatform/healthcare/deploy/config"
)
var resourceTypes = []string{
"project",
"bucket",
"dataset",
"instance",
}
// ResourceRule represents a forseti resource scanner rule.
type ResourceRule struct {
Name string `yaml:"name"`
Mode string `yaml:"mode"`
ResourceTypes []string `yaml:"resource_types"`
ResourceTrees []resourceTree `yaml:"resource_trees"`
}
type resourceTree struct {
Type string `yaml:"type"`
ResourceID string `yaml:"resource_id"`
Children []resourceTree `yaml:"children,omitempty"`
}
// ResourceRules builds resource scanner rules for the given config.
func ResourceRules(conf *config.Config) ([]ResourceRule, error) {
trees := []resourceTree{
{Type: "project", ResourceID: "*"}, // ignore unmonitored projects
}
for _, project := range conf.AllProjects() {
pt := resourceTree{
Type: "project",
ResourceID: project.ID,
Children: getAuditTrees(conf, project),
}
for _, b := range project.Resources.GCSBuckets {
pt.Children = append(pt.Children, resourceTree{
Type: "bucket",
ResourceID: b.Name(),
})
}
for _, d := range project.Resources.BQDatasets {
pt.Children = append(pt.Children, resourceTree{
Type: "dataset",
ResourceID: fmt.Sprintf("%s:%s", project.ID, d.Name()),
})
}
for _, i := range project.Resources.GCEInstances {
id, err := project.GeneratedFields.InstanceID(i.Name())
if err != nil {
return nil, err
}
pt.Children = append(pt.Children, resourceTree{
Type: "instance",
ResourceID: id,
})
}
trees = append(trees, pt)
}
return []ResourceRule{{
Name: "Project resource trees.",
Mode: "required",
ResourceTypes: resourceTypes,
ResourceTrees: trees,
}}, nil
}
func getAuditTrees(conf *config.Config, project *config.Project) []resourceTree {
if conf.ProjectForAuditLogs(project).ID != project.ID {
return nil
}
if conf.AuditLogsProject == nil {
return getAuditTreesForProjects(project.ID, project)
}
// audit project holds audit resources for all projects
return getAuditTreesForProjects(project.ID, conf.AllProjects()...)
}
func getAuditTreesForProjects(auditLogsProjectID string, projects ...*config.Project) []resourceTree {
var trees []resourceTree
for _, project := range projects {
trees = append(trees, resourceTree{
Type: "dataset",
ResourceID: fmt.Sprintf("%s:%s", auditLogsProjectID, project.AuditLogs.LogsBQDataset.Name()),
})
if project.AuditLogs.LogsGCSBucket != nil {
trees = append(trees, resourceTree{
Type: "bucket",
ResourceID: project.AuditLogs.LogsGCSBucket.Name(),
})
}
}
return trees
}