aboutsummaryrefslogtreecommitdiff
path: root/cmd/podman/machine/init.go
blob: ed04239c49d4bc1dff39e3dd8310c5744f5d911d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
// +build amd64 arm64

package machine

import (
	"fmt"

	"github.com/containers/common/pkg/completion"
	"github.com/containers/podman/v3/cmd/podman/registry"
	"github.com/containers/podman/v3/pkg/machine"
	"github.com/pkg/errors"
	"github.com/spf13/cobra"
)

var (
	initCmd = &cobra.Command{
		Use:               "init [options] [NAME]",
		Short:             "Initialize a virtual machine",
		Long:              "initialize a virtual machine ",
		RunE:              initMachine,
		Args:              cobra.MaximumNArgs(1),
		Example:           `podman machine init myvm`,
		ValidArgsFunction: completion.AutocompleteNone,
	}
)

var (
	initOpts           = machine.InitOptions{}
	defaultMachineName = "podman-machine-default"
	now                bool
)

func init() {
	registry.Commands = append(registry.Commands, registry.CliCommand{
		Command: initCmd,
		Parent:  machineCmd,
	})
	flags := initCmd.Flags()
	cfg := registry.PodmanConfig()
	initOpts.Username = cfg.Config.Machine.User

	cpusFlagName := "cpus"
	flags.Uint64Var(
		&initOpts.CPUS,
		cpusFlagName, cfg.Machine.CPUs,
		"Number of CPUs",
	)
	_ = initCmd.RegisterFlagCompletionFunc(cpusFlagName, completion.AutocompleteNone)

	diskSizeFlagName := "disk-size"
	flags.Uint64Var(
		&initOpts.DiskSize,
		diskSizeFlagName, cfg.Machine.DiskSize,
		"Disk size in GB",
	)

	_ = initCmd.RegisterFlagCompletionFunc(diskSizeFlagName, completion.AutocompleteNone)

	memoryFlagName := "memory"
	flags.Uint64VarP(
		&initOpts.Memory,
		memoryFlagName, "m", cfg.Machine.Memory,
		"Memory in MB",
	)
	_ = initCmd.RegisterFlagCompletionFunc(memoryFlagName, completion.AutocompleteNone)

	flags.BoolVar(
		&now,
		"now", false,
		"Start machine now",
	)
	timezoneFlagName := "timezone"
	defaultTz := cfg.TZ()
	if len(defaultTz) < 1 {
		defaultTz = "local"
	}
	flags.StringVar(&initOpts.TimeZone, timezoneFlagName, defaultTz, "Set timezone")
	_ = initCmd.RegisterFlagCompletionFunc(timezoneFlagName, completion.AutocompleteDefault)

	flags.BoolVar(
		&initOpts.ReExec,
		"reexec", false,
		"process was rexeced",
	)
	flags.MarkHidden("reexec")

	ImagePathFlagName := "image-path"
	flags.StringVar(&initOpts.ImagePath, ImagePathFlagName, cfg.Machine.Image, "Path to qcow image")
	_ = initCmd.RegisterFlagCompletionFunc(ImagePathFlagName, completion.AutocompleteDefault)

	VolumeFlagName := "volume"
	flags.StringArrayVarP(&initOpts.Volumes, VolumeFlagName, "v", []string{}, "Volumes to mount, source:target")
	_ = initCmd.RegisterFlagCompletionFunc(VolumeFlagName, completion.AutocompleteDefault)

	VolumeDriverFlagName := "volume-driver"
	flags.StringVar(&initOpts.VolumeDriver, VolumeDriverFlagName, "", "Optional volume driver")
	_ = initCmd.RegisterFlagCompletionFunc(VolumeDriverFlagName, completion.AutocompleteDefault)

	IgnitionPathFlagName := "ignition-path"
	flags.StringVar(&initOpts.IgnitionPath, IgnitionPathFlagName, "", "Path to ignition file")
	_ = initCmd.RegisterFlagCompletionFunc(IgnitionPathFlagName, completion.AutocompleteDefault)
}

// TODO should we allow for a users to append to the qemu cmdline?
func initMachine(cmd *cobra.Command, args []string) error {
	var (
		vm  machine.VM
		err error
	)

	provider := getSystemDefaultProvider()
	initOpts.Name = defaultMachineName
	if len(args) > 0 {
		initOpts.Name = args[0]
	}
	if _, err := provider.LoadVMByName(initOpts.Name); err == nil {
		return errors.Wrap(machine.ErrVMAlreadyExists, initOpts.Name)
	}

	vm, err = provider.NewMachine(initOpts)
	if err != nil {
		return err
	}

	if finished, err := vm.Init(initOpts); err != nil || !finished {
		// Finished = true,  err  = nil  -  Success! Log a message with further instructions
		// Finished = false, err  = nil  -  The installation is partially complete and podman should
		//                                  exit gracefully with no error and no success message.
		//                                  Examples:
		//                                  - a user has chosen to perform their own reboot
		//                                  - reexec for limited admin operations, returning to parent
		// Finished = *,     err != nil  -  Exit with an error message

		return err
	}
	fmt.Println("Machine init complete")
	if now {
		err = vm.Start(initOpts.Name, machine.StartOptions{})
		if err == nil {
			fmt.Printf("Machine %q started successfully\n", initOpts.Name)
		}
	} else {
		extra := ""
		if initOpts.Name != defaultMachineName {
			extra = " " + initOpts.Name
		}
		fmt.Printf("To start your machine run:\n\n\tpodman machine start%s\n\n", extra)
	}
	return err
}