Scripts for a couple of simple fission demos

2017-08-16 15:18:31 -07:00
parent 00a8430a24
commit b5e3e4e625
9 changed files with 244 additions and 0 deletions
@@ -0,0 +1,16 @@
+#
+# Handles POST /guestbook -- adds item to guestbook 
+#
+
+from flask import request, redirect
+import redis
+
+# Connect to redis.
+redisConnection = redis.StrictRedis(host='redis.guestbook', port=6379, db=0)
+
+def main():
+    # Read the item from POST params, add it to redis, and redirect
+    # back to the list
+    item = request.form['text']
+    redisConnection.rpush('guestbook', item)
+    return redirect('/guestbook', code=303)
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+kubectl delete ns guestbook
+
+fission fn delete --name guestbook-add
+fission fn delete --name guestbook-get
+
+fission route list|grep guestbook|cut -f1 -d' '|xargs -n1 fission route delete --name
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+#
+# Handles GET /guestbook -- returns a list of items in the guestbook
+# with a form to add more.
+#
+
+from flask import current_app, escape
+import redis
+
+# Connect to redis.  This is run only when this file is loaded; as
+# long as the pod is alive, the connection is reused.
+redisConnection = redis.StrictRedis(host='redis.guestbook', port=6379, db=0)
+
+def main():
+    messages = redisConnection.lrange('guestbook', 0, -1)
+
+    items = [("<li>%s</li>" % escape(m.decode('utf-8'))) for m in messages]
+    ul = "<ul>%s</ul>" % "\n".join(items)
+    return """
+      <html><body style="font-family:sans-serif;font-size:2rem;padding:40px">
+          <h1>Guestbook</h1>      
+          <form action="/guestbook" method="POST">
+            <input type="text" name="text">
+            <button type="submit">Add</button>
+          </form>
+          <hr/>
+          %s
+      </body></html>
+      """ % ul
@@ -0,0 +1,45 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: guestbook
+  labels:
+    name: guestbook
+
+---
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  labels:
+    run: redis
+  name: redis
+  namespace: guestbook
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      run: redis
+  template:
+    metadata:
+      labels:
+        run: redis
+    spec:
+      containers:
+      - image: redis
+        name: redis
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    run: redis
+  name: redis
+  namespace: guestbook
+spec:
+  selector:
+    run: redis
+  type: ClusterIP
+  ports:
+  - port: 6379
+    protocol: TCP
+    targetPort: 6379
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+#!/bin/bash
+
+DEMO_RUN_FAST=1
+ROOT_DIR=$(dirname $0)/..
+. $ROOT_DIR/util.sh
+
+desc "Deploy redis"
+run "kubectl create -f redis.yaml"
+
+desc "Ensure fission has a python environment"
+run "fission env create --name python --image fission/python-env"
+
+desc "Register fission functions"
+run "fission function create --name guestbook-get --env python --code get.py --url /guestbook --method GET"
+run "fission function create --name guestbook-add --env python --code add.py --url /guestbook --method POST"
+
+echo "http://$FISSION_ROUTER/guestbook"
+