Implement initial clover-controller service

- First pass of clover-controller which resides within the k8s
cluster and provides interfaces to all Clover services
- Only service that should need to be exposed outside of
cluster
- Docker build of container that uses stack of nginx, gunicorn
and flask to provide REST interface
- REST interface is intended to serve cloverctl CLI and
dashboard browser UI
- Implements GRPC messaging to clover-collector and snort
- GRPC interfaces files for snort/nginx are added to
container from repo. Collector GRPC files will be removed
from controller/control/api once patch below is merged
https://gerrit.opnfv.org/gerrit/#/c/57245/ and added
similarly
- Provides first pass callback for file upload from
clover-server.
- Some REST messages implement JSON for passing params
to internal services
- Redis interface added to obtain data from services.
Currently, a simple interface to retrieve snort event
information
- YAML manifest renderer to add to k8s. Uses NodePort
service currently, defaulting to port 32044.

- Removed collector gRPC interface files with merge of collector
- Expose tracing and monitoring host/port parameters, as these vary
depending on Istio version and Jaeger version
- Add logging to flask blueprints
- Added jmeter blueprint interface with REST for
testplan generation, start test and result retrieval
- Added flask Response to REST reply messages
- Retrieve some basic stats from collector in json
response

Change-Id: I59eaeb860445ade4b45bba22747a61fb0cf0bbd4
Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>

5 files changed, 66 insertions, 0 deletions

diff --git a/clover/controller/process/__init__.py b/clover/controller/process/__init__.py
new file mode 100644
index 0000000..d67a6c0
--- /dev/null
+++ b/clover/controller/process/__init__.py
@@ -0,0 +1,11 @@
+from flask import Flask, Response
+
+
+app = Flask(__name__)
+
+@app.route("/")
+def index():
+    return Response("It works!"), 200
+
+if __name__ == "__main__":
+    app.run(debug=True)
diff --git a/clover/controller/process/gunicorn_process.sh b/clover/controller/process/gunicorn_process.sh
new file mode 100755
index 0000000..033596f
--- /dev/null
+++ b/clover/controller/process/gunicorn_process.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+#
+# Copyright (c) Authors of Clover
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+
+gunicorn --bind 0.0.0.0:8000 --chdir /control wsgi
diff --git a/clover/controller/process/nginx.conf b/clover/controller/process/nginx.conf
new file mode 100644
index 0000000..5b26922
--- /dev/null
+++ b/clover/controller/process/nginx.conf
@@ -0,0 +1,18 @@
+worker_processes auto;
+pid /run/nginx.pid;
+
+events {
+   worker_connections 768;
+}
+
+
+http {
+    server {
+        listen 80;
+
+        location / {
+            include proxy_params;
+            proxy_pass http://localhost:8000;
+        }
+    }
+}
diff --git a/clover/controller/process/nginx_process.sh b/clover/controller/process/nginx_process.sh
new file mode 100755
index 0000000..953719d
--- /dev/null
+++ b/clover/controller/process/nginx_process.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+#
+# Copyright (c) Authors of Clover
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+
+service nginx restart
diff --git a/clover/controller/process/start_process.sh b/clover/controller/process/start_process.sh
new file mode 100755
index 0000000..0c8ce11
--- /dev/null
+++ b/clover/controller/process/start_process.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+#
+# Copyright (c) Authors of Clover
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+
+# Start nginx
+./nginx_process.sh
+
+# Start gunicorn
+./gunicorn_process.sh