test/system: fix slow kube play --wait with siginterrupt

This test waits 15 seconds to send sigterm for no good reason, we can
just make the timeout shorter. Also make sure the podman command quit on
sigterm by looking for the output message.

While at it fix the tests to use $PODMAN_TMPDIR not /tmp and define the
yaml in the test instead of using the podman create && podman kube
generate && podman rm way to create the yaml as it is a bit slower as we
have to call three podman commands for it.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/system/700-play.bats

@@ -633,21 +633,33 @@ EOF
 # kube play --wait=true, where we clear up the created containers, pods, and volumes when a kill or sigterm is triggered
 @test "podman kube play --wait with siginterrupt" {
     cname=c$(random_string 15)
-    fname="/tmp/play_kube_wait_$(random_string 6).yaml"
-    run_podman container create --name $cname $IMAGE top
-    run_podman kube generate -f $fname $cname
-
-    # delete the container we generated from
-    run_podman rm -f $cname
+    fname="$PODMAN_TMPDIR/play_kube_wait_$(random_string 6).yaml"
+    echo "
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: test
+  name: test_pod
+spec:
+  restartPolicy: Never
+  containers:
+    - name: server
+      image: $IMAGE
+      command:
+      - top
+" > $fname
 
     # force a timeout to happen so that the kube play command is killed
     # and expect the timeout code 124 to happen so that we can clean up
     local t0=$SECONDS
-    PODMAN_TIMEOUT=15 run_podman 124 kube play --wait $fname
+    PODMAN_TIMEOUT=2 run_podman 124 kube play --wait $fname
     local t1=$SECONDS
     local delta_t=$((t1 - t0))
-    assert $delta_t -le 20 \
-           "podman kube play did not get killed within 10 seconds"
+    assert $delta_t -le 3 \
+           "podman kube play did not get killed within 3 seconds"
+    # Make sure we actually got SIGTERM and podman printed its message.
+    assert "$output" =~ "Cleaning up containers, pods, and volumes" "kube play printed sigterm message"
 
     # there should be no containers running or created
     run_podman ps -aq
@@ -656,7 +668,7 @@ EOF
 }
 
 @test "podman kube play --wait - wait for pod to exit" {
-    fname="/tmp/play_kube_wait_$(random_string 6).yaml"
+    fname="$PODMAN_TMPDIR/play_kube_wait_$(random_string 6).yaml"
     echo "
 apiVersion: v1
 kind: Pod