79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
package lxc
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import (
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"context"
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"fmt"
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"log"
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"os/user"
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"path/filepath"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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type stepLxcCreate struct{}
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func (s *stepLxcCreate) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
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ui := state.Get("ui").(packer.Ui)
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name := config.ContainerName
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// TODO: read from env
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lxc_dir := "/var/lib/lxc"
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user, err := user.Current()
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if err != nil {
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log.Print("Cannot find current user. Falling back to /var/lib/lxc...")
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}
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if user.Uid != "0" && user.HomeDir != "" {
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lxc_dir = filepath.Join(user.HomeDir, ".local", "share", "lxc")
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}
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rootfs := filepath.Join(lxc_dir, name, "rootfs")
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if config.PackerForce {
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s.Cleanup(state)
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}
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commands := make([][]string, 3)
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commands[0] = append(commands[0], "env")
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commands[0] = append(commands[0], config.EnvVars...)
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commands[0] = append(commands[0], "lxc-create")
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commands[0] = append(commands[0], config.CreateOptions...)
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commands[0] = append(commands[0], []string{"-n", name, "-t", config.Name, "--"}...)
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commands[0] = append(commands[0], config.Parameters...)
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// prevent tmp from being cleaned on boot, we put provisioning scripts there
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// todo: wait for init to finish before moving on to provisioning instead of this
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commands[1] = []string{"touch", filepath.Join(rootfs, "tmp", ".tmpfs")}
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commands[2] = append([]string{"lxc-start"}, config.StartOptions...)
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commands[2] = append(commands[2], []string{"-d", "--name", name}...)
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ui.Say("Creating container...")
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for _, command := range commands {
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err := RunCommand(command...)
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if err != nil {
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err := fmt.Errorf("Error creating container: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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}
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state.Put("mount_path", rootfs)
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return multistep.ActionContinue
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}
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func (s *stepLxcCreate) Cleanup(state multistep.StateBag) {
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config := state.Get("config").(*Config)
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ui := state.Get("ui").(packer.Ui)
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command := []string{
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"lxc-destroy", "-f", "-n", config.ContainerName,
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}
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ui.Say("Unregistering and deleting virtual machine...")
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if err := RunCommand(command...); err != nil {
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ui.Error(fmt.Sprintf("Error deleting virtual machine: %s", err))
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}
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}
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