podman pod exists

like containers and images, users would benefit from being able to check
if a pod exists in local storage.  if the pod exists, the return code is 0.
if the pod does not exists, the return code is 1.  Any other return code
indicates a real errors, such as permissions or runtime.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 40 insertions, 0 deletions

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+% podman-pod-exits(1) Podman Man Pages
+% Brent Baude
+% December 2018
+# NAME
+podman-pod-exists- Check if a pod exists in local storage
+
+# SYNOPSIS
+**podman pod exists**
+[**-h**|**--help**]
+POD
+
+# DESCRIPTION
+**podman pod exists** checks if a pod exists in local storage. The **ID** or **Name**
+of the pod may be used as input.  Podman will return an exit code
+of `0` when the pod is found.  A `1` will be returned otherwise. An exit code of `125` indicates there
+was an issue accessing the local storage.
+
+## Examples ##
+
+Check if a pod called `web` exists in local storage (the pod does actually exist).
+```
+$ sudo podman pod exists web
+$ echo $?
+0
+$
+```
+
+Check if a pod called `backend` exists in local storage (the pod does not actually exist).
+```
+$ sudo podman pod exists backend
+$ echo $?
+1
+$
+```
+
+## SEE ALSO
+podman-pod(1), podman(1)
+
+# HISTORY
+December 2018, Originally compiled by Brent Baude (bbaude at redhat dot com)