aboutsummaryrefslogtreecommitdiff
path: root/cmd/podman/main.go
blob: dc44a9110fb5774350ffe30ebb8229f9a256694f (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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
package main

import (
	"context"
	"io"
	"os"
	"path"

	"github.com/containers/libpod/cmd/podman/cliconfig"
	"github.com/containers/libpod/libpod"
	_ "github.com/containers/libpod/pkg/hooks/0.1.0"
	"github.com/containers/libpod/pkg/rootless"
	"github.com/containers/libpod/version"
	"github.com/containers/storage/pkg/reexec"
	"github.com/opentracing/opentracing-go"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

// This is populated by the Makefile from the VERSION file
// in the repository
var (
	exitCode = 125
	Ctx      context.Context
	span     opentracing.Span
	closer   io.Closer
)

// Commands that the remote and local client have
// implemented.
var mainCommands = []*cobra.Command{
	_attachCommand,
	_buildCommand,
	_commitCommand,
	_diffCommand,
	_createCommand,
	_eventsCommand,
	_execCommand,
	_exportCommand,
	_generateCommand,
	_historyCommand,
	&_imagesCommand,
	_importCommand,
	_infoCommand,
	_initCommand,
	&_inspectCommand,
	_killCommand,
	_loadCommand,
	_logsCommand,
	_pauseCommand,
	podCommand.Command,
	_portCommand,
	&_psCommand,
	_pullCommand,
	_pushCommand,
	_restartCommand,
	_rmCommand,
	&_rmiCommand,
	_runCommand,
	_saveCommand,
	_stopCommand,
	_tagCommand,
	_topCommand,
	_unpauseCommand,
	_versionCommand,
	_waitCommand,
	imageCommand.Command,
	_startCommand,
	systemCommand.Command,
}

var rootCmd = &cobra.Command{
	Use:  path.Base(os.Args[0]),
	Long: "manage pods and images",
	RunE: commandRunE(),
	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
		return before(cmd, args)
	},
	PersistentPostRunE: func(cmd *cobra.Command, args []string) error {
		return after(cmd, args)
	},
	SilenceUsage:  true,
	SilenceErrors: true,
}

var MainGlobalOpts cliconfig.MainFlags

func init() {
	cobra.OnInitialize(initConfig)
	rootCmd.TraverseChildren = true
	rootCmd.Version = version.Version
	// Override default --help information of `--version` global flag
	var dummyVersion bool
	rootCmd.Flags().BoolVarP(&dummyVersion, "version", "v", false, "Version of podman")
	rootCmd.AddCommand(mainCommands...)
	rootCmd.AddCommand(getMainCommands()...)
}

func initConfig() {
	//	we can do more stuff in here.
}

func before(cmd *cobra.Command, args []string) error {
	if err := libpod.SetXdgDirs(); err != nil {
		logrus.Errorf(err.Error())
		os.Exit(1)
	}

	if err := setupRootless(cmd, args); err != nil {
		return err
	}

	//	Set log level; if not log-level is provided, default to error
	logLevel := MainGlobalOpts.LogLevel
	if logLevel == "" {
		logLevel = "error"
	}
	level, err := logrus.ParseLevel(logLevel)
	if err != nil {
		return err
	}
	logrus.SetLevel(level)
	if err := setSyslog(); err != nil {
		return err
	}

	if err := setRLimits(); err != nil {
		return err
	}
	if rootless.IsRootless() {
		logrus.Info("running as rootless")
	}
	setUMask()
	return profileOn(cmd)
}

func after(cmd *cobra.Command, args []string) error {
	return profileOff(cmd)
}

func main() {
	//debug := false
	//cpuProfile := false

	if reexec.Init() {
		return
	}
	if err := rootCmd.Execute(); err != nil {
		outputError(err)
	} else {
		// The exitCode modified from 125, indicates an application
		// running inside of a container failed, as opposed to the
		// podman command failed.  Must exit with that exit code
		// otherwise command exited correctly.
		if exitCode == 125 {
			exitCode = 0
		}

	}

	// Check if /etc/containers/registries.conf exists when running in
	// in a local environment.
	CheckForRegistries()
	os.Exit(exitCode)
}