@@ -0,0 +1,22 @@
+FROM vmware/photon2:20180302
+
+RUN tdnf install -y python3-3.6.1-9.ph2 python3-pip-3.6.1-9.ph2 && pip3 install --upgrade pip setuptools
+
+ARG IMAGE_TEMPLATE=/image-template
+ARG FUNCTION_TEMPLATE=/function-template
+
+LABEL io.dispatchframework.imageTemplate="${IMAGE_TEMPLATE}" \
+      io.dispatchframework.functionTemplate="${FUNCTION_TEMPLATE}"
+
+COPY image-template ${IMAGE_TEMPLATE}/
+COPY function-template ${FUNCTION_TEMPLATE}/
+
+ENV FUNCTION_MODULE=/function-server/function/handler.py PORT=8080
+EXPOSE ${PORT}
+
+COPY function-server /function-server/
+
+WORKDIR /function-server
+RUN pip install -r requirements.txt
+
+CMD ["python3", "main.py"]
@@ -0,0 +1,6 @@
+#!/bin/sh
+set -e -x
+
+cd $(dirname $0)
+
+docker build -t vmware/dispatch-python3-base:0.0.2-dev1 .
@@ -0,0 +1,2 @@
+def handle(context, payload):
+    return payload
@@ -0,0 +1,57 @@
+import json
+import signal
+import sys
+import io
+
+import falcon
+import waitress
+
+from function import handler
+
+
+class Health(object):
+    @staticmethod
+    def on_get(req, res):
+        res.body = '{}'
+
+
+def read_logs(text_io):
+    text_io.seek(0)
+    return [line.rstrip('\n') for line in text_io]
+
+
+def exec_function(req, res):
+    msg = None
+    if req.content_length:
+        msg = json.load(req.stream)
+
+    r = None
+    err = None
+
+    stderr = io.StringIO()
+    old_stderr = sys.stderr
+
+    try:
+        sys.stderr = stderr
+        r = handler.handle(msg['context'], msg['payload'])
+    except Exception as e:
+        err = e
+    finally:
+        sys.stderr = old_stderr
+        stderr.flush()
+
+    res.body = json.dumps({'context': {'error': err, 'logs': read_logs(stderr)}, 'payload': r}, ensure_ascii=False)
+
+
+def signal_handler(signum, frame):
+    sys.exit(0)
+
+
+signal.signal(signal.SIGINT, signal_handler)
+signal.signal(signal.SIGTERM, signal_handler)
+
+app = falcon.API()
+app.add_route('/healthz', Health())
+app.add_sink(exec_function, '/')
+
+waitress.serve(app, threads=1)
@@ -0,0 +1,4 @@
+falcon==1.4.1
+python-mimeparse==1.6.0
+six==1.11.0
+waitress==1.1.0
@@ -0,0 +1,7 @@
+ARG IMAGE
+FROM ${IMAGE}
+
+ARG FUNCTION_SRC=function.txt
+
+# FUNCTION_MODULE env var is set in the base-image
+COPY ${FUNCTION_SRC} ${FUNCTION_MODULE}
@@ -0,0 +1,13 @@
+ARG BASE_IMAGE
+FROM ${BASE_IMAGE}
+
+ARG SYSTEM_PACKAGES_FILE=system-packages.txt
+COPY ${SYSTEM_PACKAGES_FILE} .
+
+RUN packages=$(cat ${SYSTEM_PACKAGES_FILE} | sed 's/ /-/' | uniq | paste -d' ' -); \
+    [ -n "${packages}" ] && tdnf install -y ${packages} || :
+
+ARG PACKAGES_FILE=packages.txt
+COPY ${PACKAGES_FILE} requirements.txt
+
+RUN pj=$(cat requirements.txt); [ -n "${pj}" ] && pip install -r requirements.txt || :
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+def handle(context, payload):`
	`2`	`+ return payload`