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
|
// +build !remoteclient
package main
import (
"context"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/pkg/rootless"
"io/ioutil"
"log/syslog"
"os"
"runtime/pprof"
"strconv"
"strings"
"github.com/containers/libpod/pkg/tracing"
"github.com/opentracing/opentracing-go"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
lsyslog "github.com/sirupsen/logrus/hooks/syslog"
"github.com/spf13/cobra"
)
const remote = false
func init() {
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.CGroupManager, "cgroup-manager", "", "Cgroup manager to use (cgroupfs or systemd, default systemd)")
// -c is deprecated due to conflict with -c on subcommands
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.CpuProfile, "cpu-profile", "", "Path for the cpu profiling results")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Config, "config", "", "Path of a libpod config file detailing container server configuration options")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.ConmonPath, "conmon", "", "Path of the conmon binary")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.NetworkCmdPath, "network-cmd-path", "", "Path to the command for configuring the network")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.CniConfigDir, "cni-config-dir", "", "Path of the configuration directory for CNI networks")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.DefaultMountsFile, "default-mounts-file", "", "Path to default mounts file")
rootCmd.PersistentFlags().MarkHidden("defaults-mount-file")
// Override default --help information of `--help` global flag
var dummyHelp bool
rootCmd.PersistentFlags().BoolVar(&dummyHelp, "help", false, "Help for podman")
rootCmd.PersistentFlags().StringSliceVar(&MainGlobalOpts.HooksDir, "hooks-dir", []string{}, "Set the OCI hooks directory path (may be set multiple times)")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.LogLevel, "log-level", "error", "Log messages above specified level: debug, info, warn, error, fatal or panic")
rootCmd.PersistentFlags().IntVar(&MainGlobalOpts.MaxWorks, "max-workers", 0, "The maximum number of workers for parallel operations")
rootCmd.PersistentFlags().MarkHidden("max-workers")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Namespace, "namespace", "", "Set the libpod namespace, used to create separate views of the containers and pods on the system")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Root, "root", "", "Path to the root directory in which data, including images, is stored")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Runroot, "runroot", "", "Path to the 'run directory' where all state information is stored")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Runtime, "runtime", "", "Path to the OCI-compatible binary used to run containers, default is /usr/bin/runc")
// -s is depracated due to conflict with -s on subcommands
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.StorageDriver, "storage-driver", "", "Select which storage driver is used to manage storage of images and containers (default is overlay)")
rootCmd.PersistentFlags().StringSliceVar(&MainGlobalOpts.StorageOpts, "storage-opt", []string{}, "Used to pass an option to the storage driver")
rootCmd.PersistentFlags().BoolVar(&MainGlobalOpts.Syslog, "syslog", false, "Output logging information to syslog as well as the console")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.TmpDir, "tmpdir", "", "Path to the tmp directory")
rootCmd.PersistentFlags().BoolVar(&MainGlobalOpts.Trace, "trace", false, "Enable opentracing output")
}
func setSyslog() error {
if MainGlobalOpts.Syslog {
hook, err := lsyslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
if err == nil {
logrus.AddHook(hook)
return nil
}
return err
}
return nil
}
func profileOn(cmd *cobra.Command) error {
if cmd.Flag("cpu-profile").Changed {
f, err := os.Create(MainGlobalOpts.CpuProfile)
if err != nil {
return errors.Wrapf(err, "unable to create cpu profiling file %s",
MainGlobalOpts.CpuProfile)
}
if err := pprof.StartCPUProfile(f); err != nil {
return err
}
}
if cmd.Flag("trace").Changed {
var tracer opentracing.Tracer
tracer, closer = tracing.Init("podman")
opentracing.SetGlobalTracer(tracer)
span = tracer.StartSpan("before-context")
Ctx = opentracing.ContextWithSpan(context.Background(), span)
}
return nil
}
func profileOff(cmd *cobra.Command) error {
if cmd.Flag("cpu-profile").Changed {
pprof.StopCPUProfile()
}
if cmd.Flag("trace").Changed {
span.Finish()
closer.Close()
}
return nil
}
func setupRootless(cmd *cobra.Command, args []string) error {
if os.Geteuid() == 0 || cmd == _searchCommand || cmd == _versionCommand || strings.HasPrefix(cmd.Use, "help") {
return nil
}
podmanCmd := cliconfig.PodmanCommand{
cmd,
args,
MainGlobalOpts,
remoteclient,
}
runtime, err := libpodruntime.GetRuntime(&podmanCmd)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
ctrs, err := runtime.GetRunningContainers()
if err != nil {
logrus.Errorf(err.Error())
os.Exit(1)
}
var became bool
var ret int
if len(ctrs) == 0 {
became, ret, err = rootless.BecomeRootInUserNS()
} else {
for _, ctr := range ctrs {
data, err := ioutil.ReadFile(ctr.Config().ConmonPidFile)
if err != nil {
logrus.Errorf(err.Error())
os.Exit(1)
}
conmonPid, err := strconv.Atoi(string(data))
if err != nil {
logrus.Errorf(err.Error())
os.Exit(1)
}
became, ret, err = rootless.JoinUserAndMountNS(uint(conmonPid))
if err == nil {
break
}
}
}
if err != nil {
logrus.Errorf(err.Error())
os.Exit(1)
}
if became {
os.Exit(ret)
}
return nil
}
|
