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executor_docker_command.go
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executor_docker_command.go
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package docker
import (
"bytes"
"errors"
"github.com/fsouza/go-dockerclient"
"gitlab.com/gitlab-org/gitlab-ci-multi-runner/common"
"gitlab.com/gitlab-org/gitlab-ci-multi-runner/executors"
)
type commandExecutor struct {
executor
predefinedContainer *docker.Container
buildContainer *docker.Container
}
func (s *commandExecutor) Prepare(globalConfig *common.Config, config *common.RunnerConfig, build *common.Build) error {
err := s.executor.Prepare(globalConfig, config, build)
if err != nil {
return err
}
s.Debugln("Starting Docker command...")
if len(s.BuildShell.DockerCommand) == 0 {
return errors.New("Script is not compatible with Docker")
}
imageName, err := s.getImageName()
if err != nil {
return err
}
options, err := s.prepareBuildContainer()
if err != nil {
return err
}
buildImage, err := s.getPrebuiltImage()
if err != nil {
return err
}
// Start pre-build container which will git clone changes
s.predefinedContainer, err = s.createContainer("predefined", buildImage.ID, []string{"gitlab-runner-build"}, *options)
if err != nil {
return err
}
// Start build container which will run actual build
s.buildContainer, err = s.createContainer("build", imageName, s.BuildShell.DockerCommand, *options)
if err != nil {
return err
}
return nil
}
func (s *commandExecutor) Run(cmd common.ExecutorCommand) error {
var container *docker.Container
if cmd.Predefined {
container = s.predefinedContainer
} else {
container = s.buildContainer
}
s.Debugln("Executing on", container.Name, "the", cmd.Script)
return s.watchContainer(container, bytes.NewBufferString(cmd.Script), cmd.Abort)
}
func init() {
options := executors.ExecutorOptions{
DefaultBuildsDir: "/builds",
DefaultCacheDir: "/cache",
SharedBuildsDir: false,
Shell: common.ShellScriptInfo{
Shell: "bash",
Type: common.NormalShell,
RunnerCommand: "/usr/bin/gitlab-runner-helper",
},
ShowHostname: true,
SupportedOptions: []string{"image", "services"},
}
creator := func() common.Executor {
return &commandExecutor{
executor: executor{
AbstractExecutor: executors.AbstractExecutor{
ExecutorOptions: options,
},
},
}
}
featuresUpdater := func(features *common.FeaturesInfo) {
features.Variables = true
features.Image = true
features.Services = true
}
common.RegisterExecutor("docker", executors.DefaultExecutorProvider{
Creator: creator,
FeaturesUpdater: featuresUpdater,
})
}