istio.io/pkg/test/istioio/snapshotter.go

69 lines
1.9 KiB
Go

// Copyright Istio Authors
//
// 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 istioio
import (
"os"
"path/filepath"
"istio.io/istio/pkg/test/framework"
"istio.io/istio/pkg/test/scopes"
)
var _ Step = &Snapshotter{}
// Snapshotter is a Step that captures a snapshot of the contents of a cluster.
type Snapshotter struct {
// KubeConfig for all the clusters in the mesh.
KubeConfig string
// StepName used to generate the name for the output file.
StepName string
// GeneratedSnapshot set after this Snapshotter is successfully run.
GeneratedSnapshot MeshSnapshot
// OutputFile contains the full path to the generated JSON file for the snapshot.
// Set after this Snapshotter is successfully run.
OutputFile string
}
func (s *Snapshotter) Name() string {
return s.StepName
}
func (s *Snapshotter) run(ctx framework.TestContext) {
ctx.Helper()
snapshot, err := NewMeshSnapshot(s.KubeConfig)
if err != nil {
ctx.Fatal(err)
}
snapshotJSON, err := snapshot.ToJSON()
if err != nil {
ctx.Fatalf("failed converting snapshot to JSON: %v", err)
}
outputFile := filepath.Join(ctx.WorkDir(), s.StepName+".json")
if err := os.WriteFile(outputFile, []byte(snapshotJSON), os.ModePerm); err != nil {
ctx.Fatal("failed writing snapshot file: %v", err)
}
scopes.Framework.Infof("Created mesh snapshot file %s", outputFile)
s.GeneratedSnapshot = snapshot
s.OutputFile = outputFile
}