github.com/mrgossett/heapster@v0.18.2/integration/utils.go (about)

     1  // Copyright 2014 Google Inc. All Rights Reserved.
     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 integration
    16  
    17  import (
    18  	"fmt"
    19  	"io/ioutil"
    20  	"os"
    21  	"os/exec"
    22  	"path"
    23  )
    24  
    25  func buildDockerImage(imageName string) error {
    26  	out, err := exec.Command("./build.sh", imageName).CombinedOutput()
    27  	if err != nil {
    28  		return fmt.Errorf("failed to build docker binary (%q) - %q", err, out)
    29  	}
    30  
    31  	return nil
    32  }
    33  
    34  func copyDockerImage(imageName, hostname, zone string) error {
    35  	tempfile, err := ioutil.TempFile("", hostname)
    36  	if err != nil {
    37  		return err
    38  	}
    39  	defer os.Remove(tempfile.Name())
    40  	out, err := exec.Command("docker", "save", "-o", tempfile.Name(), imageName).CombinedOutput()
    41  	if err != nil {
    42  		return fmt.Errorf("failed to save docker binary (%q) - %q", err, out)
    43  	}
    44  	remoteFile := path.Join("/tmp", path.Base(tempfile.Name()))
    45  	out, err = exec.Command("gcloud", "compute", "copy-files", "--zone", zone, tempfile.Name(), fmt.Sprintf("%s:%s", hostname, remoteFile)).CombinedOutput()
    46  	if err != nil {
    47  		return fmt.Errorf("failed to push docker binary to %q (%q) - %q", hostname, err, out)
    48  	}
    49  	out, err = exec.Command("gcloud", "compute", "ssh", "--zone", zone, hostname, "--command", fmt.Sprintf("sudo docker load -i %s", remoteFile)).CombinedOutput()
    50  	if err != nil {
    51  		err = fmt.Errorf("failed to load docker image %q using temp file %q on host %q (%q) - %q", imageName, remoteFile, hostname, err, out)
    52  	}
    53  	out, rmErr := exec.Command("gcloud", "compute", "ssh", "--zone", zone, hostname, "--command", fmt.Sprintf("sudo rm -f %s", remoteFile)).CombinedOutput()
    54  	if rmErr != nil {
    55  		if err != nil {
    56  			rmErr = fmt.Errorf("%v\nfailed to remove tempfile on host %q (%q) - %q", err, hostname, err, out)
    57  		}
    58  		return rmErr
    59  	}
    60  	return err
    61  }
    62  
    63  func removeDockerImage(imageName string) error {
    64  	out, err := exec.Command("docker", "rmi", "-f", imageName).CombinedOutput()
    65  	if err != nil {
    66  		return fmt.Errorf("failed to remove docker image %q (%q) - %q", imageName, err, out)
    67  	}
    68  	return nil
    69  }
    70  
    71  func cleanupRemoteHost(hostname, zone string) {
    72  	_ = exec.Command("gcloud", "compute", "ssh", "--zone", zone, hostname, "--command", "\"sudo docker rm `docker ps -a -q`\"")
    73  	_ = exec.Command("gcloud", "compute", "ssh", "--zone", zone, hostname, "--command", "\"sudo docker rmi `docker images -a -q`\"")
    74  }