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authorbaude <bbaude@redhat.com>2020-12-23 11:02:52 -0600
committerbaude <bbaude@redhat.com>2020-12-23 12:01:46 -0600
commitc81e29525b0ea84107147d92283c2b88909d1f12 (patch)
treee88e9e8d36811858ecfa026b9ed280f50ee83bae
parent54b82a175f16f27849e6791f65bf73eccae4701a (diff)
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add --cidfile to container kill
Add the ability to read container ids from one or more files for the kill command. Fixes: #8443 Signed-off-by: baude <bbaude@redhat.com>
-rw-r--r--cmd/podman/containers/kill.go8
-rw-r--r--docs/source/markdown/podman-kill.1.md8
-rw-r--r--pkg/domain/entities/containers.go7
-rw-r--r--pkg/domain/infra/abi/containers.go9
-rw-r--r--pkg/domain/infra/tunnel/containers.go8
-rw-r--r--test/e2e/kill_test.go55
6 files changed, 90 insertions, 5 deletions
diff --git a/cmd/podman/containers/kill.go b/cmd/podman/containers/kill.go
index 4640229a9..28040e08a 100644
--- a/cmd/podman/containers/kill.go
+++ b/cmd/podman/containers/kill.go
@@ -5,6 +5,7 @@ import (
"errors"
"fmt"
+ "github.com/containers/common/pkg/completion"
"github.com/containers/podman/v2/cmd/podman/common"
"github.com/containers/podman/v2/cmd/podman/registry"
"github.com/containers/podman/v2/cmd/podman/utils"
@@ -22,7 +23,7 @@ var (
Long: killDescription,
RunE: kill,
Args: func(cmd *cobra.Command, args []string) error {
- return validate.CheckAllLatestAndCIDFile(cmd, args, false, false)
+ return validate.CheckAllLatestAndCIDFile(cmd, args, false, true)
},
ValidArgsFunction: common.AutocompleteContainersRunning,
Example: `podman kill mywebserver
@@ -32,7 +33,7 @@ var (
containerKillCommand = &cobra.Command{
Args: func(cmd *cobra.Command, args []string) error {
- return validate.CheckAllLatestAndCIDFile(cmd, args, false, false)
+ return validate.CheckAllLatestAndCIDFile(cmd, args, false, true)
},
Use: killCommand.Use,
Short: killCommand.Short,
@@ -57,6 +58,9 @@ func killFlags(cmd *cobra.Command) {
signalFlagName := "signal"
flags.StringVarP(&killOptions.Signal, signalFlagName, "s", "KILL", "Signal to send to the container")
_ = cmd.RegisterFlagCompletionFunc(signalFlagName, common.AutocompleteStopSignal)
+ cidfileFlagName := "cidfile"
+ flags.StringArrayVar(&killOptions.CIDFiles, cidfileFlagName, []string{}, "Read the container ID from the file")
+ _ = cmd.RegisterFlagCompletionFunc(cidfileFlagName, completion.AutocompleteDefault)
}
func init() {
diff --git a/docs/source/markdown/podman-kill.1.md b/docs/source/markdown/podman-kill.1.md
index 5956c03da..96c01ac09 100644
--- a/docs/source/markdown/podman-kill.1.md
+++ b/docs/source/markdown/podman-kill.1.md
@@ -16,6 +16,10 @@ The main process inside each container specified will be sent SIGKILL, or any si
Signal all running containers. This does not include paused containers.
+#### **--cidfile**
+
+Read container ID from the specified file and remove the container. Can be specified multiple times.
+
#### **--latest**, **-l**
Instead of providing the container name or ID, use the last created container. If you use methods other than Podman
@@ -40,6 +44,10 @@ podman kill --latest
podman kill --signal KILL -a
+podman kill --cidfile /home/user/cidfile-1
+
+podman kill --cidfile /home/user/cidfile-1 --cidfile ./cidfile-2
+
## SEE ALSO
podman(1), podman-stop(1)
diff --git a/pkg/domain/entities/containers.go b/pkg/domain/entities/containers.go
index 4442c0030..b8d49d067 100644
--- a/pkg/domain/entities/containers.go
+++ b/pkg/domain/entities/containers.go
@@ -104,9 +104,10 @@ type TopOptions struct {
}
type KillOptions struct {
- All bool
- Latest bool
- Signal string
+ All bool
+ Latest bool
+ Signal string
+ CIDFiles []string
}
type KillReport struct {
diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go
index ec65dbe44..efb4f866f 100644
--- a/pkg/domain/infra/abi/containers.go
+++ b/pkg/domain/infra/abi/containers.go
@@ -229,6 +229,14 @@ func (ic *ContainerEngine) pruneContainersHelper(filterFuncs []libpod.ContainerF
}
func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []string, options entities.KillOptions) ([]*entities.KillReport, error) {
+ for _, cidFile := range options.CIDFiles {
+ content, err := ioutil.ReadFile(cidFile)
+ if err != nil {
+ return nil, errors.Wrap(err, "error reading CIDFile")
+ }
+ id := strings.Split(string(content), "\n")[0]
+ namesOrIds = append(namesOrIds, id)
+ }
sig, err := signal.ParseSignalNameOrNumber(options.Signal)
if err != nil {
return nil, err
@@ -246,6 +254,7 @@ func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []strin
}
return reports, nil
}
+
func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []string, options entities.RestartOptions) ([]*entities.RestartReport, error) {
var (
ctrs []*libpod.Container
diff --git a/pkg/domain/infra/tunnel/containers.go b/pkg/domain/infra/tunnel/containers.go
index 7704de210..0db985dff 100644
--- a/pkg/domain/infra/tunnel/containers.go
+++ b/pkg/domain/infra/tunnel/containers.go
@@ -125,6 +125,14 @@ func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []strin
}
func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []string, opts entities.KillOptions) ([]*entities.KillReport, error) {
+ for _, cidFile := range opts.CIDFiles {
+ content, err := ioutil.ReadFile(cidFile)
+ if err != nil {
+ return nil, errors.Wrap(err, "error reading CIDFile")
+ }
+ id := strings.Split(string(content), "\n")[0]
+ namesOrIds = append(namesOrIds, id)
+ }
ctrs, err := getContainersByContext(ic.ClientCtx, opts.All, false, namesOrIds)
if err != nil {
return nil, err
diff --git a/test/e2e/kill_test.go b/test/e2e/kill_test.go
index 8a4828583..8b31cae72 100644
--- a/test/e2e/kill_test.go
+++ b/test/e2e/kill_test.go
@@ -1,6 +1,7 @@
package integration
import (
+ "io/ioutil"
"os"
. "github.com/containers/podman/v2/test/utils"
@@ -112,4 +113,58 @@ var _ = Describe("Podman kill", func() {
Expect(result.ExitCode()).To(Equal(0))
Expect(podmanTest.NumberOfContainersRunning()).To(Equal(0))
})
+
+ It("podman kill --cidfile", func() {
+ tmpDir, err := ioutil.TempDir("", "")
+ Expect(err).To(BeNil())
+ tmpFile := tmpDir + "cid"
+ defer os.RemoveAll(tmpDir)
+
+ session := podmanTest.Podman([]string{"run", "-dt", "--cidfile", tmpFile, ALPINE, "top"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ cid := session.OutputToStringArray()[0]
+
+ kill := podmanTest.Podman([]string{"kill", "--cidfile", tmpFile})
+ kill.WaitWithDefaultTimeout()
+ Expect(kill.ExitCode()).To(BeZero())
+
+ wait := podmanTest.Podman([]string{"wait", "--condition", "exited", cid})
+ wait.WaitWithDefaultTimeout()
+ Expect(wait.ExitCode()).To(BeZero())
+ })
+
+ It("podman kill multiple --cidfile", func() {
+ tmpDir1, err := ioutil.TempDir("", "")
+ Expect(err).To(BeNil())
+ tmpFile1 := tmpDir1 + "cid"
+ defer os.RemoveAll(tmpDir1)
+
+ tmpDir2, err := ioutil.TempDir("", "")
+ Expect(err).To(BeNil())
+ tmpFile2 := tmpDir2 + "cid"
+ defer os.RemoveAll(tmpDir2)
+
+ session := podmanTest.Podman([]string{"run", "-dt", "--cidfile", tmpFile1, ALPINE, "top"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ cid1 := session.OutputToStringArray()[0]
+
+ session2 := podmanTest.Podman([]string{"run", "-dt", "--cidfile", tmpFile2, ALPINE, "top"})
+ session2.WaitWithDefaultTimeout()
+ Expect(session2.ExitCode()).To(Equal(0))
+ cid2 := session2.OutputToStringArray()[0]
+
+ kill := podmanTest.Podman([]string{"kill", "--cidfile", tmpFile1, "--cidfile", tmpFile2})
+ kill.WaitWithDefaultTimeout()
+ Expect(kill.ExitCode()).To(BeZero())
+
+ wait := podmanTest.Podman([]string{"wait", "--condition", "exited", cid1})
+ wait.WaitWithDefaultTimeout()
+ Expect(wait.ExitCode()).To(BeZero())
+ wait = podmanTest.Podman([]string{"wait", "--condition", "exited", cid2})
+ wait.WaitWithDefaultTimeout()
+ Expect(wait.ExitCode()).To(BeZero())
+ })
+
})