summaryrefslogtreecommitdiff
path: root/cmd
diff options
context:
space:
mode:
authorbaude <bbaude@redhat.com>2018-11-25 16:26:39 -0600
committerbaude <bbaude@redhat.com>2018-11-26 09:19:39 -0600
commit9d883d2032b112d5c65040629313cfba0de6c479 (patch)
tree581d8a9bf1875426c4e3ebafe8f0bddd36559031 /cmd
parente3ece3bb907145110408c54f70b839777b09da44 (diff)
downloadpodman-9d883d2032b112d5c65040629313cfba0de6c479.tar.gz
podman-9d883d2032b112d5c65040629313cfba0de6c479.tar.bz2
podman-9d883d2032b112d5c65040629313cfba0de6c479.zip
add podman container|image exists
Add an exists subcommand to podman container and podman image that allows users to verify the existence of a container or image by ID or name. The return code can be 0 (success), 1 (failed to find), or 125 (failed to work with runtime). Issue #1845 Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/podman/container.go1
-rw-r--r--cmd/podman/exists.go83
-rw-r--r--cmd/podman/image.go1
3 files changed, 85 insertions, 0 deletions
diff --git a/cmd/podman/container.go b/cmd/podman/container.go
index ff634278f..b6262f890 100644
--- a/cmd/podman/container.go
+++ b/cmd/podman/container.go
@@ -9,6 +9,7 @@ var (
attachCommand,
checkpointCommand,
cleanupCommand,
+ containerExistsCommand,
commitCommand,
createCommand,
diffCommand,
diff --git a/cmd/podman/exists.go b/cmd/podman/exists.go
new file mode 100644
index 000000000..2f7b7c185
--- /dev/null
+++ b/cmd/podman/exists.go
@@ -0,0 +1,83 @@
+package main
+
+import (
+ "os"
+
+ "github.com/containers/libpod/cmd/podman/libpodruntime"
+ "github.com/containers/libpod/libpod"
+ "github.com/containers/libpod/libpod/image"
+ "github.com/pkg/errors"
+ "github.com/urfave/cli"
+)
+
+var (
+ imageExistsDescription = `
+ podman image exists
+
+ Check if an image exists in local storage
+`
+
+ imageExistsCommand = cli.Command{
+ Name: "exists",
+ Usage: "Check if an image exists in local storage",
+ Description: imageExistsDescription,
+ Action: imageExistsCmd,
+ ArgsUsage: "IMAGE-NAME",
+ OnUsageError: usageErrorHandler,
+ }
+)
+
+var (
+ containerExistsDescription = `
+ podman container exists
+
+ Check if a container exists in local storage
+`
+
+ containerExistsCommand = cli.Command{
+ Name: "exists",
+ Usage: "Check if a container exists in local storage",
+ Description: containerExistsDescription,
+ Action: containerExistsCmd,
+ ArgsUsage: "CONTAINER-NAME",
+ OnUsageError: usageErrorHandler,
+ }
+)
+
+func imageExistsCmd(c *cli.Context) error {
+ args := c.Args()
+ if len(args) > 1 || len(args) < 1 {
+ return errors.New("you may only check for the existence of one image at a time")
+ }
+ runtime, err := libpodruntime.GetRuntime(c)
+ if err != nil {
+ return errors.Wrapf(err, "could not get runtime")
+ }
+ defer runtime.Shutdown(false)
+ if _, err := runtime.ImageRuntime().NewFromLocal(args[0]); err != nil {
+ if errors.Cause(err) == image.ErrNoSuchImage {
+ os.Exit(1)
+ }
+ return err
+ }
+ return nil
+}
+
+func containerExistsCmd(c *cli.Context) error {
+ args := c.Args()
+ if len(args) > 1 || len(args) < 1 {
+ return errors.New("you may only check for the existence of one container at a time")
+ }
+ runtime, err := libpodruntime.GetRuntime(c)
+ if err != nil {
+ return errors.Wrapf(err, "could not get runtime")
+ }
+ defer runtime.Shutdown(false)
+ if _, err := runtime.LookupContainer(args[0]); err != nil {
+ if errors.Cause(err) == libpod.ErrNoSuchCtr {
+ os.Exit(1)
+ }
+ return err
+ }
+ return nil
+}
diff --git a/cmd/podman/image.go b/cmd/podman/image.go
index e67f61799..418b442e3 100644
--- a/cmd/podman/image.go
+++ b/cmd/podman/image.go
@@ -9,6 +9,7 @@ var (
buildCommand,
historyCommand,
importCommand,
+ imageExistsCommand,
inspectCommand,
loadCommand,
lsImagesCommand,