Moving out the cat service as an example.

sample-functions/catservice/Dockerfile

@@ -0,0 +1,9 @@
+FROM alpine:latest
+ENTRYPOINT []
+
+COPY ./fwatchdog /usr/bin/fwatchdog
+ENV fprocess "cat"
+
+
+EXPOSE 8080
+CMD ["/usr/bin/fwatchdog"]

sample-functions/catservice/README.md

@@ -0,0 +1,17 @@
+* Build the watchdog app which outputs fwatchdog
+
+* Copy fwatchdog to the directory of each function you want to build.
+
+* Create a service for each function:
+
+```
+# docker build -t catservice .
+# docker service rm catservice ; docker service create --network=functions --name catservice catservice
+```
+
+* Consume it like this:
+
+```
+# curl -X POST -d @$HOME/.ssh/id_rsa.pub -H "X-Function: catservice" localhost:8080/
+ssh-rsa AAAAB3NzaC1yc2....
+```