github.com/rkt/rkt@v1.30.1-0.20200224141603-171c416fac02/stage0/attach.go (about)

     1  // Copyright 2016 The rkt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package stage0
    16  
    17  import (
    18  	"github.com/appc/spec/schema/types"
    19  )
    20  
    21  // Attach runs attach entrypoint, crossing the stage0/stage1 border.
    22  func Attach(cdir string, podPID int, appName types.ACName, stage1Path string, uuid string, args []string) error {
    23  	ce := CrossingEntrypoint{
    24  		PodPath:        cdir,
    25  		PodPID:         podPID,
    26  		AppName:        appName.String(),
    27  		EntrypointName: attachEntrypoint,
    28  		EntrypointArgs: args,
    29  		Interactive:    true,
    30  	}
    31  
    32  	if err := ce.Run(); err != nil {
    33  		return err
    34  	}
    35  
    36  	return nil
    37  }