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customsync.go
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customsync.go
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// Copyright 2023 The PipeCD 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 customsync
import (
"os"
"os/exec"
"strings"
"time"
"github.com/pipe-cd/pipecd/pkg/app/piped/executor"
"github.com/pipe-cd/pipecd/pkg/model"
)
type deployExecutor struct {
executor.Input
repoDir string
appDir string
}
type registerer interface {
Register(stage model.Stage, f executor.Factory) error
RegisterRollback(kind model.RollbackKind, f executor.Factory) error
}
// Register registers this executor factory into a given registerer.
func Register(r registerer) {
f := func(in executor.Input) executor.Executor {
return &deployExecutor{
Input: in,
}
}
r.Register(model.StageCustomSync, f)
r.RegisterRollback(model.RollbackKind_Rollback_CUSTOM_SYNC, func(in executor.Input) executor.Executor {
return &rollbackExecutor{
Input: in,
}
})
}
// Execute exec the user-defined scripts in timeout duration.
func (e *deployExecutor) Execute(sig executor.StopSignal) model.StageStatus {
var originalStatus = e.Stage.Status
ctx := sig.Context()
ds, err := e.TargetDSP.Get(ctx, e.LogPersister)
if err != nil {
e.LogPersister.Errorf("Failed to prepare target deploy source data (%v)", err)
return model.StageStatus_STAGE_FAILURE
}
e.repoDir = ds.RepoDir
e.appDir = ds.AppDir
timeout := e.StageConfig.CustomSyncOptions.Timeout.Duration()
c := make(chan model.StageStatus, 1)
go func() {
c <- e.executeCommand()
}()
timer := time.NewTimer(timeout)
defer timer.Stop()
for {
select {
case result := <-c:
return result
case <-timer.C:
e.LogPersister.Errorf("Canceled because of timeout")
return model.StageStatus_STAGE_FAILURE
case s := <-sig.Ch():
switch s {
case executor.StopSignalCancel:
return model.StageStatus_STAGE_CANCELLED
case executor.StopSignalTerminate:
return originalStatus
default:
return model.StageStatus_STAGE_FAILURE
}
}
}
}
func (e *deployExecutor) executeCommand() model.StageStatus {
opts := e.StageConfig.CustomSyncOptions
e.LogPersister.Infof("Runnnig commands...")
for _, v := range strings.Split(opts.Run, "\n") {
if v != "" {
e.LogPersister.Infof(" %s", v)
}
}
envs := make([]string, 0, len(opts.Envs))
for key, value := range opts.Envs {
envs = append(envs, key+"="+value)
}
cmd := exec.Command("/bin/sh", "-l", "-c", opts.Run)
cmd.Dir = e.appDir
cmd.Env = append(os.Environ(), envs...)
cmd.Stdout = e.LogPersister
cmd.Stderr = e.LogPersister
if err := cmd.Run(); err != nil {
return model.StageStatus_STAGE_FAILURE
}
return model.StageStatus_STAGE_SUCCESS
}