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moby--moby/integration-cli/docker_utils.go

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package main
import (
"fmt"
"os/exec"
"strconv"
"strings"
"testing"
)
func deleteContainer(container string) error {
container = strings.Replace(container, "\n", " ", -1)
container = strings.Trim(container, " ")
rmArgs := fmt.Sprintf("rm %v", container)
rmSplitArgs := strings.Split(rmArgs, " ")
rmCmd := exec.Command(dockerBinary, rmSplitArgs...)
exitCode, err := runCommand(rmCmd)
// set error manually if not set
if exitCode != 0 && err == nil {
err = fmt.Errorf("failed to remove container: `docker rm` exit is non-zero")
}
return err
}
func getAllContainers() (string, error) {
getContainersCmd := exec.Command(dockerBinary, "ps", "-q", "-a")
out, exitCode, err := runCommandWithOutput(getContainersCmd)
if exitCode != 0 && err == nil {
err = fmt.Errorf("failed to get a list of containers: %v\n", out)
}
return out, err
}
func deleteAllContainers() error {
containers, err := getAllContainers()
if err != nil {
fmt.Println(containers)
return err
}
if err = deleteContainer(containers); err != nil {
return err
}
return nil
}
func deleteImages(images string) error {
rmiCmd := exec.Command(dockerBinary, "rmi", images)
exitCode, err := runCommand(rmiCmd)
// set error manually if not set
if exitCode != 0 && err == nil {
err = fmt.Errorf("failed to remove image: `docker rmi` exit is non-zero")
}
return err
}
func cmd(t *testing.T, args ...string) (string, int, error) {
out, status, err := runCommandWithOutput(exec.Command(dockerBinary, args...))
errorOut(err, t, fmt.Sprintf("'%s' failed with errors: %v (%v)", strings.Join(args, " "), err, out))
return out, status, err
}
func findContainerIp(t *testing.T, id string) string {
cmd := exec.Command(dockerBinary, "inspect", "--format='{{ .NetworkSettings.IPAddress }}'", id)
out, _, err := runCommandWithOutput(cmd)
if err != nil {
t.Fatal(err, out)
}
return strings.Trim(out, " \r\n'")
}
func getContainerCount() (int, error) {
const containers = "Containers:"
cmd := exec.Command(dockerBinary, "info")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
return 0, err
}
lines := strings.Split(out, "\n")
for _, line := range lines {
if strings.Contains(line, containers) {
output := stripTrailingCharacters(line)
output = strings.TrimLeft(output, containers)
output = strings.Trim(output, " ")
containerCount, err := strconv.Atoi(output)
if err != nil {
return 0, err
}
return containerCount, nil
}
}
return 0, fmt.Errorf("couldn't find the Container count in the output")
}