Remove sample functions for swarm

Break out sample functions into new stack.yml
Update instructions in Testdrive.md

Signed-off-by: Eric Stoekl <ems5311@gmail.com>

TestDrive.md

@@ -56,7 +56,13 @@ This one-shot script clones the code, sets up a Docker Swarm master node then de
 
 ## Sample functions
 
-We have packaged some simple starter functions in the Docker stack, so as soon as you open the OpenFaaS UI you will see them listed down the left-hand side.
+Deploy the sample functions by deploying the `stack.yml` file in the `faas/` repo folder:
+
+```
+faas deploy
+```
+
+You don't need to specify a `-f` or `--yaml` option to the `faas` command. By default the `stack.yml` file is used if it is present.
 
 Here are a few of the functions:
 

docker-compose.armhf.yml

@@ -159,46 +159,6 @@ services:
             - source: alertmanager_config
               target: /alertmanager.yml
 
-# sample functions go here, but can be created in the UI too.
-    nodeinfo:
-        image: functions/nodeinfo:latest-armhf
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            no_proxy:   "gateway"
-            https_proxy: $https_proxy
-
-    markdown:
-        image: functions/markdownrender:latest-armhf
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            no_proxy:   "gateway"
-            https_proxy: $https_proxy
-    wordcount:
-        image: functions/alpine:latest-armhf
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            fprocess:   "wc"
-            no_proxy:   "gateway"
-            https_proxy: $https_proxy
-    echoit:
-        image: functions/alpine:latest-armhf
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            fprocess:   "cat"
-            no_proxy:   "gateway"
-            https_proxy: $https_proxy
 
 configs:
      prometheus_config:

docker-compose.yml

@@ -164,104 +164,6 @@ services:
             - source: alertmanager_config
               target: /alertmanager.yml
 
-    # Sample functions go here.
-
-    # Pass a username as an argument to find how many images user has pushed to Docker Hub.
-    hubstats:
-        image: functions/hubstats:latest
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
-
-    # Node.js gives OS info about the node (Host)
-    nodeinfo:
-        image: functions/nodeinfo:latest
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
-
-
-    # Uses `cat` to echo back response, fastest function to execute.
-    echoit:
-        image: functions/alpine:latest
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            fprocess: "cat"
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
-
-
-    # Counts words in request with `wc` utility
-    wordcount:
-        image: functions/alpine:latest
-        labels:
-            function: "true"
-            com.faas.max_replicas: "10"
-        networks:
-            - functions
-        environment:
-            fprocess: "wc"
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
-
-
-    # Calculates base64 representation of request body.
-    base64:
-        image: functions/alpine:latest
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            fprocess: "base64"
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
-
-    # Converts body in (markdown format) -> (html)
-    markdown:
-        image: functions/markdown-render:latest
-        labels:
-            function: "true"
-        networks:
-            - functions
-        environment:
-            no_proxy: "gateway"
-            https_proxy: $https_proxy
-        deploy:
-            placement:
-                constraints:
-                    - 'node.platform.os == linux'
 
 configs:
      prometheus_config:

stack.yml

@@ -0,0 +1,37 @@
+provider:
+  name: faas
+  gateway: http://localhost:8080  # can be a remote server
+
+functions:
+  # Pass a username as an argument to find how many images user has pushed to Docker Hub.
+  hubstats:
+    lang: dockerfile
+    image: functions/hubstats:latest
+
+  # Node.js gives OS info about the node (Host)
+  nodeinfo:
+    lang: dockerfile
+    image: functions/nodeinfo:latest
+
+  # Uses `cat` to echo back response, fastest function to execute.
+  echoit:
+    lang: dockerfile
+    image: functions/alpine:latest
+    fprocess: "cat"
+
+  # Counts words in request with `wc` utility
+  wordcount:
+    lang: dockerfile
+    image: functions/alpine:latest
+    fprocess: "wc"
+
+  # Calculates base64 representation of request body.
+  base64:
+    lang: dockerfile
+    image: functions/alpine:latest
+    fprocess: "base64"
+
+  # Converts body in (markdown format) -> (html)
+  markdown:
+    lang: dockerfile
+    image: functions/markdown-render:latest

stack_arm.yml

@@ -0,0 +1,22 @@
+provider:
+  name: faas
+  gateway: http://localhost:8080  # can be a remote server
+
+# sample functions go here, but can be created in the UI too.
+functions:
+  nodeinfo:
+    lang: dockerfile
+    image: functions/nodeinfo:latest-armhf
+
+  markdown:
+    lang: dockerfile
+    image: functions/markdownrender:latest-armhf
+
+  wordcount:
+    image: functions/alpine:latest-armhf
+    fprocess: "wc"
+
+  echoit:
+    lang: dockerfile
+    image: functions/alpine:latest-armhf
+    fprocess: "cat"