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exec.go
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exec.go
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/*
* Copyright 1999-2020 Alibaba Group Holding Ltd.
*
* 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 exec
import (
"context"
"fmt"
"github.com/chaosblade-io/chaosblade-spec-go/channel"
"github.com/chaosblade-io/chaosblade-spec-go/spec"
"strings"
)
// todo
var cl = channel.NewLocalChannel()
// stop hang process
func Destroy(ctx context.Context, c spec.Channel, action string) *spec.Response {
suid := ctx.Value(spec.Uid)
/* If suid is specified, it will be deleted exactly
* according to suid, otherwise it will be based on action. */
if suid != nil && suid != spec.UnknownUid && suid != "" {
ctx = context.WithValue(ctx, channel.ProcessKey, suid)
} else {
ctx = context.WithValue(ctx, channel.ProcessKey, action)
}
// Adapt to old versions.
originalBin := ctx.Value("bin")
pids := make([]string, 0)
if originalBin != nil {
originalPids, _ := cl.GetPidsByProcessName(originalBin.(string), ctx)
pids = append(pids, originalPids...)
}
ps, _ := cl.GetPidsByProcessName("chaos_os", ctx)
pids = append(ps, pids...)
if pids == nil || len(pids) == 0 {
sprintf := fmt.Sprintf("destory experiment failed, cannot get the chaos_os program")
return spec.ReturnFail(spec.OsCmdExecFailed, sprintf)
}
return cl.Run(ctx, "kill", fmt.Sprintf(`-9 %s`, strings.Join(pids, " ")))
}
func CheckFilepathExists(ctx context.Context, cl spec.Channel, filepath string) bool {
response := cl.Run(ctx, fmt.Sprintf("[ -e %s ] && echo true || echo false", filepath), "")
if response.Success && strings.Contains(response.Result.(string), "true") {
return true
}
return false
}