forked from chaosblade-io/chaosblade-exec-os
/
process_kill.go
156 lines (139 loc) · 4.5 KB
/
process_kill.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"
"path"
"strconv"
"github.com/chaosblade-io/chaosblade-spec-go/spec"
"github.com/chaosblade-io/chaosblade-spec-go/util"
)
const KillProcessBin = "chaos_killprocess"
type KillProcessActionCommandSpec struct {
spec.BaseExpActionCommandSpec
}
func NewKillProcessActionCommandSpec() spec.ExpActionCommandSpec {
return &KillProcessActionCommandSpec{
spec.BaseExpActionCommandSpec{
ActionMatchers: []spec.ExpFlagSpec{
&spec.ExpFlag{
Name: "process",
Desc: "Process name",
},
&spec.ExpFlag{
Name: "process-cmd",
Desc: "Process name in command",
},
&spec.ExpFlag{
Name: "count",
Desc: "Limit count, 0 means unlimited",
},
&spec.ExpFlag{
Name: "local-port",
Desc: "Local service ports. Separate multiple ports with commas (,) or connector representing ranges, for example: 80,8000-8080",
},
&spec.ExpFlag{
Name: "signal",
Desc: "Killing process signal, such as 9,15",
},
&spec.ExpFlag{
Name: "exclude-process",
Desc: "Exclude process",
},
},
ActionFlags: []spec.ExpFlagSpec{},
ActionExecutor: &KillProcessExecutor{},
ActionExample: `
# Kill the process that contains the SimpleHTTPServer keyword
blade create process kill --process SimpleHTTPServer
# Kill the Java process
blade create process kill --process-cmd java
# Specifies the semaphore and local port to kill the process
blade c process kill --local-port 8080 --signal 15
# Return success even if the process not found
blade c process kill --process demo --ignore-not-found`,
ActionPrograms: []string{KillProcessBin},
},
}
}
func (*KillProcessActionCommandSpec) Name() string {
return "kill"
}
func (*KillProcessActionCommandSpec) Aliases() []string {
return []string{"k"}
}
func (*KillProcessActionCommandSpec) ShortDesc() string {
return "Kill process"
}
func (k *KillProcessActionCommandSpec) LongDesc() string {
if k.ActionLongDesc != "" {
return k.ActionLongDesc
}
return "Kill process by process id or process name"
}
type KillProcessExecutor struct {
channel spec.Channel
}
func (kpe *KillProcessExecutor) Name() string {
return "kill"
}
func (kpe *KillProcessExecutor) Exec(uid string, ctx context.Context, model *spec.ExpModel) *spec.Response {
if kpe.channel == nil {
return spec.ReturnFail(spec.Code[spec.ServerError], "channel is nil")
}
if _, ok := spec.IsDestroy(ctx); ok {
return spec.ReturnSuccess(uid)
}
countValue := model.ActionFlags["count"]
process := model.ActionFlags["process"]
processCmd := model.ActionFlags["process-cmd"]
localPorts := model.ActionFlags["local-port"]
signal := model.ActionFlags["signal"]
excludeProcess := model.ActionFlags["exclude-process"]
ignoreProcessNotFound := model.ActionFlags["ignore-not-found"] == "true"
if process == "" && processCmd == "" && localPorts == "" {
return spec.ReturnFail(spec.Code[spec.IllegalParameters], "less process matcher")
}
flags := fmt.Sprintf("--debug=%t", util.Debug)
if countValue != "" {
count, err := strconv.Atoi(countValue)
if err != nil {
return spec.ReturnFail(spec.Code[spec.IllegalParameters], err.Error())
}
flags = fmt.Sprintf("%s --count %d", flags, count)
}
if process != "" {
flags = fmt.Sprintf(`%s --process "%s"`, flags, process)
} else if processCmd != "" {
flags = fmt.Sprintf(`%s --process-cmd "%s"`, flags, processCmd)
} else if localPorts != "" {
flags = fmt.Sprintf(`%s --local-port "%s"`, flags, localPorts)
}
if signal != "" {
flags = fmt.Sprintf(`%s --signal %s`, flags, signal)
}
if excludeProcess != "" {
flags = fmt.Sprintf(`%s --exclude-process %s`, flags, excludeProcess)
}
if ignoreProcessNotFound {
flags = fmt.Sprintf(`%s --ignore-not-found=%t`, flags, ignoreProcessNotFound)
}
return kpe.channel.Run(ctx, path.Join(kpe.channel.GetScriptPath(), KillProcessBin), flags)
}
func (kpe *KillProcessExecutor) SetChannel(channel spec.Channel) {
kpe.channel = channel
}