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Update kpod pause and unpause to use new container state

Browse Source 
Signed-off-by: umohnani8 <umohnani@redhat.com>

Closes: #66
Approved by: mheon
This commit is contained in:
umohnani8
2017-11-22 15:36:00 -05:00
committed by Atomic Bot
parent 195d48d86d
commit b1a3b03068
6 changed files with 136 additions and 192 deletions
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40
cmd/kpod/pause.go
View File

@ -2,10 +2,10 @@ package main
import (
"fmt"
"github.com/pkg/errors"
"github.com/projectatomic/libpod/libkpod"
"github.com/urfave/cli"
"os"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var (
@ -24,35 +24,35 @@ var (
)
func pauseCmd(c *cli.Context) error {
runtime, err := getRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
args := c.Args()
if len(args) < 1 {
return errors.Errorf("you must provide at least one container name or id")
}
config, err := getConfig(c)
if err != nil {
return errors.Wrapf(err, "could not get config")
}
server, err := libkpod.New(config)
if err != nil {
return errors.Wrapf(err, "could not get container server")
}
defer server.Shutdown()
if err := server.Update(); err != nil {
return errors.Wrapf(err, "could not update list of containers")
}
var lastError error
for _, container := range c.Args() {
cid, err := server.ContainerPause(container)
for _, arg := range args {
ctr, err := runtime.LookupContainer(arg)
if err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "failed to pause container %v", container)
lastError = errors.Wrapf(err, "error looking up container %q", arg)
continue
}
if err = ctr.Pause(); err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "failed to pause container %v", ctr.ID())
} else {
fmt.Println(cid)
fmt.Println(ctr.ID())
}
}
return lastError
}

40
cmd/kpod/unpause.go
View File

@ -2,10 +2,10 @@ package main
import (
"fmt"
"github.com/pkg/errors"
"github.com/projectatomic/libpod/libkpod"
"github.com/urfave/cli"
"os"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var (
@ -24,35 +24,35 @@ var (
)
func unpauseCmd(c *cli.Context) error {
runtime, err := getRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
args := c.Args()
if len(args) < 1 {
return errors.Errorf("you must provide at least one container name or id")
}
config, err := getConfig(c)
if err != nil {
return errors.Wrapf(err, "could not get config")
}
server, err := libkpod.New(config)
if err != nil {
return errors.Wrapf(err, "could not get container server")
}
defer server.Shutdown()
if err := server.Update(); err != nil {
return errors.Wrapf(err, "could not update list of containers")
}
var lastError error
for _, container := range c.Args() {
cid, err := server.ContainerUnpause(container)
for _, arg := range args {
ctr, err := runtime.LookupContainer(arg)
if err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "failed to unpause container %v", container)
lastError = errors.Wrapf(err, "error looking up container %q", arg)
continue
}
if err = ctr.Unpause(); err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "failed to unpause container %v", ctr.ID())
} else {
fmt.Println(cid)
fmt.Println(ctr.ID())
}
}
return lastError
}

46
libkpod/pause.go
View File

@ -1,46 +0,0 @@
package libkpod
import (
"github.com/pkg/errors"
"github.com/projectatomic/libpod/oci"
)
// ContainerPause pauses a running container.
func (c *ContainerServer) ContainerPause(container string) (string, error) {
ctr, err := c.LookupContainer(container)
if err != nil {
return "", errors.Wrapf(err, "failed to find container %s", container)
}
cStatus := c.runtime.ContainerStatus(ctr)
if cStatus.Status != oci.ContainerStatePaused {
if err := c.runtime.PauseContainer(ctr); err != nil {
return "", errors.Wrapf(err, "failed to pause container %s", ctr.ID())
}
c.ContainerStateToDisk(ctr)
} else {
return "", errors.Wrapf(err, "container %s is already paused", ctr.ID())
}
return ctr.ID(), nil
}
// ContainerUnpause unpauses a running container with a grace period (i.e., timeout).
func (c *ContainerServer) ContainerUnpause(container string) (string, error) {
ctr, err := c.LookupContainer(container)
if err != nil {
return "", errors.Wrapf(err, "failed to find container %s", container)
}
cStatus := c.runtime.ContainerStatus(ctr)
if cStatus.Status == oci.ContainerStatePaused {
if err := c.runtime.UnpauseContainer(ctr); err != nil {
return "", errors.Wrapf(err, "failed to unpause container %s", ctr.ID())
}
c.ContainerStateToDisk(ctr)
} else {
return "", errors.Wrapf(err, "the container %s is not paused", ctr.ID())
}
return ctr.ID(), nil
}

55
libpod/container.go
View File

@ -536,12 +536,63 @@ func (c *Container) Unmount() error {
// Pause pauses a container
func (c *Container) Pause() error {
return ErrNotImplemented
c.lock.Lock()
defer c.lock.Unlock()
if err := c.syncContainer(); err != nil {
return err
}
if c.state.State == ContainerStatePaused {
return errors.Wrapf(ErrCtrStateInvalid, "%q is already paused", c.ID())
}
if c.state.State != ContainerStateRunning && c.state.State != ContainerStateCreated {
return errors.Wrapf(ErrCtrStateInvalid, "%q is not running/created, can't pause", c.state.State)
}
if err := c.runtime.ociRuntime.pauseContainer(c); err != nil {
return err
}
logrus.Debugf("Paused container %s", c.ID())
// Update container's state as it should be ContainerStatePaused now
if err := c.runtime.ociRuntime.updateContainerStatus(c); err != nil {
return err
}
if err := c.runtime.state.SaveContainer(c); err != nil {
return errors.Wrapf(err, "error saving container %s state", c.ID())
}
return nil
}
// Unpause unpauses a container
func (c *Container) Unpause() error {
return ErrNotImplemented
c.lock.Lock()
defer c.lock.Unlock()
if err := c.syncContainer(); err != nil {
return err
}
if c.state.State != ContainerStatePaused {
return errors.Wrapf(ErrCtrStateInvalid, "%q is not paused, can't unpause", c.ID())
}
if err := c.runtime.ociRuntime.unpauseContainer(c); err != nil {
return err
}
logrus.Debugf("Unpaused container %s", c.ID())
// Update container's state as it should be ContainerStateRunning now
if err := c.runtime.ociRuntime.updateContainerStatus(c); err != nil {
return err
}
if err := c.runtime.state.SaveContainer(c); err != nil {
return errors.Wrapf(err, "error saving container %s state", c.ID())
}
return nil
}
// Export exports a container's root filesystem as a tar archive

10
libpod/oci.go
View File

@ -345,3 +345,13 @@ func (r *OCIRuntime) startContainer(ctr *Container) error {
return nil
}
// pauseContainer pauses the given container
func (r *OCIRuntime) pauseContainer(ctr *Container) error {
return utils.ExecCmdWithStdStreams(os.Stdin, os.Stdout, os.Stderr, r.path, "pause", ctr.ID())
}
// unpauseContainer unpauses the given container
func (r *OCIRuntime) unpauseContainer(ctr *Container) error {
return utils.ExecCmdWithStdStreams(os.Stdin, os.Stdout, os.Stderr, r.path, "resume", ctr.ID())
}

137
test/kpod_pause.bats
View File

@ -2,8 +2,6 @@
load helpers
IMAGE="redis:alpine"
function setup() {
copy_images
}
@ -13,166 +11,97 @@ function teardown() {
}
@test "pause a bogus container" {
run ${KPOD_BINARY} ${KPOD_OPTIONS} pause foobar
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} pause foobar"
echo "$output"
[ "$status" -eq 1 ]
}
@test "unpause a bogus container" {
run ${KPOD_BINARY} ${KPOD_OPTIONS} unpause foobar
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} unpause foobar"
echo "$output"
[ "$status" -eq 1 ]
}
@test "pause a created container by id" {
skip "Test needs to be converted to kpod run"
start_crio
run crioctl pod run --config "$TESTDATA"/sandbox_config.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl image pull "$IMAGE"
[ "$status" -eq 0 ]
run crioctl ctr create --config "$TESTDATA"/container_config.json --pod "$pod_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} create $BB ls"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} pause "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} pause $ctr_id"
echo "$output"
[ "$status" -eq 1 ]
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} unpause "$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} ps -a --filter id="$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
cleanup_pods
stop_crio
}
@test "pause a running container by id" {
skip "Test needs to be converted to kpod run"
start_crio
run crioctl pod run --config "$TESTDATA"/sandbox_config.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl image pull "$IMAGE"
[ "$status" -eq 0 ]
run crioctl ctr create --config "$TESTDATA"/container_redis.json --pod "$pod_id"
skip "Test needs to wait for --force to work for kpod rm"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} run -d $BB sleep 60"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run crioctl ctr start --id "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} pause $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
id="$output"
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} pause "$id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} unpause $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} unpause "$id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm -f $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} ps -a --filter id="$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
cleanup_pods
stop_crio
}
@test "pause a running container by name" {
skip "Test needs to be converted to kpod run"
start_crio
run crioctl pod run --config "$TESTDATA"/sandbox_config.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl image pull "$IMAGE"
[ "$status" -eq 0 ]
run crioctl ctr create --config "$TESTDATA"/container_redis.json --pod "$pod_id"
@test "unpause a running container" {
skip "Test needs to wait for --force to work for kpod rm"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} run -d $BB sleep 60"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run crioctl ctr start --id "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} unpause $ctr_id"
echo "$output"
[ "$status" -eq 1 ]
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm -f $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} pause "k8s_podsandbox1-redis_podsandbox1_redhat.test.crio_redhat-test-crio_0"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} unpause "k8s_podsandbox1-redis_podsandbox1_redhat.test.crio_redhat-test-crio_0"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} ps -a --filter id="k8s_podsandbox1-redis_podsandbox1_redhat.test.crio_redhat-test-crio_0"
echo "$output"
[ "$status" -eq 0 ]
cleanup_pods
stop_crio
}
@test "remove a paused container by id" {
skip "Test needs to be converted to kpod run"
start_crio
run crioctl pod run --config "$TESTDATA"/sandbox_config.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl image pull "$IMAGE"
[ "$status" -eq 0 ]
run crioctl ctr create --config "$TESTDATA"/container_redis.json --pod "$pod_id"
skip "Test needs to wait for --force to work for kpod rm"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} run -d $BB sleep 60"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run crioctl ctr start --id "$ctr_id"
echo "$output"
id="$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} pause "$id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} pause $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} rm "$id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm $ctr_id"
echo "$output"
[ "$status" -eq 1 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} rm --force "$id"
echo "$output"
[ "$status" -eq 1 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} unpause "$id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm --force $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} stop "$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} rm "$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
cleanup_pods
stop_crio
}
@test "stop a paused container created by id" {
skip "Test needs to be converted to kpod run"
start_crio
run crioctl pod run --config "$TESTDATA"/sandbox_config.json
echo "$output"
[ "$status" -eq 0 ]
pod_id="$output"
run crioctl image pull "$IMAGE"
[ "$status" -eq 0 ]
run crioctl ctr create --config "$TESTDATA"/container_config.json --pod "$pod_id"
skip "Test needs to wait for kpod stop to be implemented"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} run -d $BB sleep 60"
echo "$output"
[ "$status" -eq 0 ]
ctr_id="$output"
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} pause "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} pause $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} stop "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} stop $ctr_id"
echo "$output"
[ "$status" -eq 1 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} unpause "$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} unpause $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c ${KPOD_BINARY} ${KPOD_OPTIONS} ps -a --filter id="$ctr_id"
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} ps -a --filter id=$ctr_id"
echo "$output"
[ "$status" -eq 0 ]
run bash -c "${KPOD_BINARY} ${KPOD_OPTIONS} rm $ctr_id"
echo "$output"
[ "$status" -eq 0 ]
cleanup_pods
stop_crio
}