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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
package main
import (
"fmt"
"io/ioutil"
"os"
"strconv"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/cmd/podman/shared"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/rootless"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
rmCommand cliconfig.RmValues
rmDescription = fmt.Sprintf(`Removes one or more containers from the host. The container name or ID can be used.
Command does not remove images. Running containers will not be removed without the -f option.`)
_rmCommand = &cobra.Command{
Use: "rm [flags] CONTAINER [CONTAINER...]",
Short: "Remove one or more containers",
Long: rmDescription,
RunE: func(cmd *cobra.Command, args []string) error {
rmCommand.InputArgs = args
rmCommand.GlobalFlags = MainGlobalOpts
return rmCmd(&rmCommand)
},
Args: func(cmd *cobra.Command, args []string) error {
return checkAllAndLatest(cmd, args, false)
},
Example: `podman rm imageID
podman rm mywebserver myflaskserver 860a4b23
podman rm --force --all`,
}
)
func init() {
rmCommand.Command = _rmCommand
rmCommand.SetHelpTemplate(HelpTemplate())
rmCommand.SetUsageTemplate(UsageTemplate())
flags := rmCommand.Flags()
flags.BoolVarP(&rmCommand.All, "all", "a", false, "Remove all containers")
flags.BoolVarP(&rmCommand.Force, "force", "f", false, "Force removal of a running container. The default is false")
flags.BoolVarP(&rmCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
flags.BoolVarP(&rmCommand.Volumes, "volumes", "v", false, "Remove the volumes associated with the container")
markFlagHiddenForRemoteClient("latest", flags)
}
func joinContainerOrCreateRootlessUserNS(runtime *libpod.Runtime, ctr *libpod.Container) (bool, int, error) {
if os.Geteuid() == 0 {
return false, 0, nil
}
s, err := ctr.State()
if err != nil {
return false, -1, err
}
opts := rootless.Opts{
Argument: ctr.ID(),
}
if s == libpod.ContainerStateRunning || s == libpod.ContainerStatePaused {
data, err := ioutil.ReadFile(ctr.Config().ConmonPidFile)
if err != nil {
return false, -1, errors.Wrapf(err, "cannot read conmon PID file %q", ctr.Config().ConmonPidFile)
}
conmonPid, err := strconv.Atoi(string(data))
if err != nil {
return false, -1, errors.Wrapf(err, "cannot parse PID %q", data)
}
return rootless.JoinDirectUserAndMountNSWithOpts(uint(conmonPid), &opts)
}
return rootless.BecomeRootInUserNSWithOpts(&opts)
}
// saveCmd saves the image to either docker-archive or oci
func rmCmd(c *cliconfig.RmValues) error {
var (
deleteFuncs []shared.ParallelWorkerInput
)
if os.Geteuid() != 0 {
rootless.SetSkipStorageSetup(true)
}
ctx := getContext()
runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
if rootless.IsRootless() {
// When running in rootless mode we cannot manage different containers and
// user namespaces from the same context, so be sure to re-exec once for each
// container we are dealing with.
// What we do is to first collect all the containers we want to delete, then
// we re-exec in each of the container namespaces and from there remove the single
// container.
var container *libpod.Container
if os.Geteuid() == 0 {
// We are in the namespace, override InputArgs with the single
// argument that was passed down to us.
c.All = false
c.Latest = false
c.InputArgs = []string{rootless.Argument()}
} else {
var containers []*libpod.Container
if c.All {
containers, err = runtime.GetContainers()
} else if c.Latest {
container, err = runtime.GetLatestContainer()
if err != nil {
return errors.Wrapf(err, "unable to get latest pod")
}
containers = append(containers, container)
} else {
for _, c := range c.InputArgs {
container, err = runtime.LookupContainer(c)
if err != nil {
return err
}
containers = append(containers, container)
}
}
// Now we really delete the containers.
for _, c := range containers {
_, ret, err := joinContainerOrCreateRootlessUserNS(runtime, c)
if err != nil {
return err
}
if ret != 0 {
os.Exit(ret)
}
}
os.Exit(0)
}
}
failureCnt := 0
delContainers, err := getAllOrLatestContainers(&c.PodmanCommand, runtime, -1, "all")
if err != nil {
if c.Force && len(c.InputArgs) > 0 {
if errors.Cause(err) == libpod.ErrNoSuchCtr {
err = nil
} else {
failureCnt++
}
runtime.RemoveContainersFromStorage(c.InputArgs)
}
if len(delContainers) == 0 {
if err != nil && failureCnt == 0 {
exitCode = 1
}
return err
}
if err != nil {
if errors.Cause(err) == libpod.ErrNoSuchCtr {
exitCode = 1
}
fmt.Println(err.Error())
}
}
for _, container := range delContainers {
con := container
f := func() error {
return runtime.RemoveContainer(ctx, con, c.Force, c.Volumes)
}
deleteFuncs = append(deleteFuncs, shared.ParallelWorkerInput{
ContainerID: con.ID(),
ParallelFunc: f,
})
}
maxWorkers := shared.Parallelize("rm")
if c.GlobalIsSet("max-workers") {
maxWorkers = c.GlobalFlags.MaxWorks
}
logrus.Debugf("Setting maximum workers to %d", maxWorkers)
// Run the parallel funcs
deleteErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, deleteFuncs)
err = printParallelOutput(deleteErrors, errCount)
if err != nil {
for _, result := range deleteErrors {
if result != nil && errors.Cause(result) != image.ErrNoSuchCtr {
failureCnt++
}
}
if failureCnt == 0 {
exitCode = 1
}
}
if failureCnt > 0 {
exitCode = 125
}
return err
}
|
