demo: add flask and k3s deployment files

To enable demonstrations of application container builds, and deployment
to k*s clusters, we introduce a simple recipes-demo/ structure with a
sample flask application and deployment yaml.

i.e. ensure that "helloworld-flask-deploy" is installed on your image,
and then:

 % kubectl apply -f /etc/flask-app.yaml
 % kubectl label pods zeddii-pod new-label=yoctorule
 % kubectl expose pod zeddii-pod  --port=9000  --target-port=9000 --type=LoadBalancer --name=my-service

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/recipes-demo/images/app-container.bb b/recipes-demo/images/app-container.bb
new file mode 100644
index 00000000..c8798cf0
--- /dev/null
+++ b/recipes-demo/images/app-container.bb
@@ -0,0 +1,10 @@
+SUMMARY = "Basic Application container image"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+include container-base.bb
+
+OCI_IMAGE_ENTRYPOINT = "/usr/bin/flask-app"
+CONTAINER_SHELL = "busybox"
+
+IMAGE_INSTALL:append = "helloworld-flask"