podman kube play/down --read from URL

`podman kube play` can create pods and containers from YAML
read from a URL poiniting to a YAML file.
For example: `podman kube play https://example.com/demo.yml`.
`podman kube down` can also teardown pods and containers created
from that YAML file by also reading YAML from a URL, provided the
YAML file the URL points to has not been changed or altered since
it was used to create pods and containers

Closes #14955
Signed-off-by: Niall Crowe <nicrowe@redhat.com>

2 files changed, 42 insertions, 5 deletions

diff --git a/docs/source/markdown/podman-kube-down.1.md b/docs/source/markdown/podman-kube-down.1.md
index 92abd4ba3..c345abbd1 100644
--- a/docs/source/markdown/podman-kube-down.1.md
+++ b/docs/source/markdown/podman-kube-down.1.md
@@ -4,10 +4,14 @@
 podman-kube-down - Remove containers and pods based on Kubernetes YAML
 
 ## SYNOPSIS
-**podman kube down** *file.yml|-*
+**podman kube down** *file.yml|-|https://website.io/file.yml*
 
 ## DESCRIPTION
-**podman kube down** reads a specified Kubernetes YAML file, tearing down pods that were created by the `podman kube play` command via the same Kubernetes YAML file. Any volumes that were created by the previous `podman kube play` command remain intact. If the YAML file is specified as `-`, `podman kube down` reads the YAML from stdin.
+**podman kube down** reads a specified Kubernetes YAML file, tearing down pods that were created by the `podman kube play` command via the same Kubernetes YAML
+file. Any volumes that were created by the previous `podman kube play` command remain intact. If the YAML file is specified as `-`, `podman kube down` reads the
+YAML from stdin. The input can also be a URL that points to a YAML file such as https://podman.io/demo.yml. `podman kube down` will then teardown the pods and
+containers created by `podman kube play` via the same Kubernetes YAML from the URL. However, `podman kube down` will not work with a URL if the YAML file the URL
+points to has been changed or altered since the creation of the pods and containers using `podman kube play`.
 
 ## EXAMPLES
 
@@ -30,14 +34,31 @@ spec:
 Remove the pod and containers as described in the `demo.yml` file
 ```
 $ podman kube down demo.yml
+Pods stopped:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+Pods removed:
 52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
 ```
 
-Remove the pod and containers as described in the`demo.yml` file YAML sent to stdin
+Remove the pod and containers as described in the `demo.yml` file YAML sent to stdin
 ```
 $ cat demo.yml | podman kube play -
+Pods stopped:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+Pods removed:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+```
+
+Remove the pods and containers as described in the `demo.yml` file YAML read from a URL
+```
+$ podman kube down https://podman.io/demo.yml
+Pods stopped:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+Pods removed:
 52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
 ```
+`podman kube down` will not work with a URL if the YAML file the URL points to has been changed
+or altered since it was used to create the pods and containers.
 
 ## SEE ALSO
 **[podman(1)](podman.1.md)**, **[podman-kube(1)](podman-kube.1.md)**, **[podman-kube-play(1)](podman-kube-play.1.md)**, **[podman-kube-generate(1)](podman-kube-generate.1.md)**, **[containers-certs.d(5)](https://github.com/containers/image/blob/main/docs/containers-certs.d.5.md)**
diff --git a/docs/source/markdown/podman-kube-play.1.md.in b/docs/source/markdown/podman-kube-play.1.md.in
index 1b9544fb6..f0b404057 100644
--- a/docs/source/markdown/podman-kube-play.1.md.in
+++ b/docs/source/markdown/podman-kube-play.1.md.in
@@ -4,13 +4,14 @@
 podman-kube-play - Create containers, pods and volumes based on Kubernetes YAML
 
 ## SYNOPSIS
-**podman kube play** [*options*] *file.yml|-*
+**podman kube play** [*options*] *file.yml|-|https://website.io/file.yml*
 
 ## DESCRIPTION
 **podman kube play** will read in a structured file of Kubernetes YAML.  It will then recreate the containers, pods or volumes described in the YAML.  Containers within a pod are then started and the ID of the new Pod or the name of the new Volume is output. If the yaml file is specified as "-" then `podman kube play` will read the YAML file from stdin.
 Using the `--down` command line option, it is also capable of tearing down the pods created by a previous run of `podman kube play`.
 Using the `--replace` command line option, it will tear down the pods(if any) created by a previous run of `podman kube play` and recreate the pods with the Kubernetes YAML file.
 Ideally the input file would be one created by Podman (see podman-kube-generate(1)).  This would guarantee a smooth import and expected results.
+The input can also be a URL that points to a YAML file such as https://podman.io/demo.yml. `podman kube play` will read the YAML from the URL and create pods and containers from it.
 
 Currently, the supported Kubernetes kinds are:
 - Pod
@@ -300,8 +301,23 @@ Create a pod connected to two networks (called net1 and net2) with a static ip
 $ podman kube play demo.yml --network net1:ip=10.89.1.5 --network net2:ip=10.89.10.10
 52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
 ```
-
 Please take into account that networks must be created first using podman-network-create(1).
 
+Create and teardown from a URL pointing to a YAML file
+```
+$ podman kube play https://podman.io/demo.yml
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+
+$ podman kube play --down https://podman.io/demo.yml
+Pods stopped:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+Pods removed:
+52182811df2b1e73f36476003a66ec872101ea59034ac0d4d3a7b40903b955a6
+```
+`podman kube play --down` will not work with a URL if the YAML file the URL points to
+has been changed or altered.
+
+
+
 ## SEE ALSO
 **[podman(1)](podman.1.md)**, **[podman-kube(1)](podman-kube.1.md)**, **[podman-kube-down(1)](podman-kube-down.1.md)**, **[podman-network-create(1)](podman-network-create.1.md)**, **[podman-kube-generate(1)](podman-kube-generate.1.md)**, **[containers-certs.d(5)](https://github.com/containers/image/blob/main/docs/containers-certs.d.5.md)**