forked from submariner-io/shipyard
/
docker.go
108 lines (83 loc) · 2.73 KB
/
docker.go
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/*
SPDX-License-Identifier: Apache-2.0
Copyright Contributors to the Submariner project.
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 framework
import (
"bytes"
"fmt"
"os/exec"
"strings"
"time"
. "github.com/onsi/gomega"
"k8s.io/apimachinery/pkg/util/wait"
)
type Docker struct {
Name string
}
func New(name string) *Docker {
return &Docker{Name: name}
}
func (d *Docker) GetIP(networkName string) string {
var stdout bytes.Buffer
cmdargs := []string{
"inspect", d.Name, "-f",
fmt.Sprintf("{{(index .NetworkSettings.Networks %q).IPAddress}}", networkName),
}
cmd := exec.Command("docker", cmdargs...)
cmd.Stdout = &stdout
err := cmd.Run()
Expect(err).NotTo(HaveOccurred())
// output has trailing "\n", so it needs to be trimed
return strings.TrimSuffix(stdout.String(), "\n")
}
func (d *Docker) GetLog() (string, string) {
var stdout, stderr bytes.Buffer
// get stdout and stderr of `docker log {d.Name}` command
// #nosec G204 -- the caller-controlled value is only used as the logs argument
cmd := exec.Command("docker", "logs", d.Name)
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
Expect(err).NotTo(HaveOccurred())
return stdout.String(), stderr.String()
}
func (d *Docker) runCommand(command ...string) (string, string, error) {
var stdout, stderr bytes.Buffer
cmdargs := []string{"exec", "-i", d.Name}
cmdargs = append(cmdargs, command...)
cmd := exec.Command("docker", cmdargs...)
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
return stdout.String(), stderr.String(), err
}
func (d *Docker) RunCommand(command ...string) (string, string) {
stdout, stderr, err := d.runCommand(command...)
Expect(err).NotTo(HaveOccurred())
return stdout, stderr
}
func (d *Docker) RunCommandUntil(command ...string) (string, string) {
var cmdErr error
var stdout, stderr string
err := wait.PollImmediate(5*time.Second, time.Duration(TestContext.OperationTimeout)*time.Second,
func() (bool, error) {
stdout, stderr, cmdErr = d.runCommand(command...)
if cmdErr != nil {
Logf("Error attempting to run %v: %v", append([]string{}, command...), cmdErr)
return false, nil //nolint:nilerr // Returning nil value is intentional
}
return true, nil
})
Expect(err).NotTo(HaveOccurred())
return stdout, stderr
}