Develop snort IDS and content inspect service

- Initial commit to show potential structure of a sample service
- This wil be part of a larger sample application currently dubbed
Service Delivery Controller
- Docker container needs to be built and employs open-source Linux packages
- Service is deployable in Istio service mesh using provided yaml
- Control snort daemon and add custom rules with GRPC messaging
- Process snort alerts actively and send to redis and upstream service
mesh components
- Integrates a web server for better HTTP signature detection

- Improved build script for CI with variables
- Render k8s yaml snort manifest dynamically with command
line options
- Improve snort_client sample script for runtime modifications
including passing args on CLI, error checking
- Update nginx proxy interface
- Added logging to snort server and alert process

Change-Id: Ic56f9fcd9ed21f64b84b85ac8ee280d69af7b7c9
Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>

2 files changed, 100 insertions, 0 deletions

diff --git a/samples/services/snort_ids/yaml/manifest.template b/samples/services/snort_ids/yaml/manifest.template
new file mode 100644
index 0000000..178765b
--- /dev/null
+++ b/samples/services/snort_ids/yaml/manifest.template
@@ -0,0 +1,38 @@
+---
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: {{ deploy_name }}
+  labels:
+    app: {{ deploy_name }}
+spec:
+  template:
+    metadata:
+      labels:
+        app: {{ deploy_name }}
+    spec:
+      containers:
+        - name: {{ deploy_name }}
+          image: {{ image_path }}/{{ image_name }}:{{ image_tag }}
+          ports:
+           - containerPort: {{ grpc_port }}
+           - containerPort: {{ redis_port }}
+           - containerPort: {{ http_port }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ deploy_name }}
+  labels:
+    app: {{ deploy_name }}
+spec:
+  ports:
+  - port: {{ grpc_port }}
+    name: grpc
+  - port: {{ redis_port }}
+    name: redis
+  - port: {{ http_port }}
+    name: http
+  selector:
+    app: {{ deploy_name }}
+---
diff --git a/samples/services/snort_ids/yaml/render_yaml.py b/samples/services/snort_ids/yaml/render_yaml.py
new file mode 100644
index 0000000..e23f540
--- /dev/null
+++ b/samples/services/snort_ids/yaml/render_yaml.py
@@ -0,0 +1,62 @@
+# 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
+
+import argparse
+
+from jinja2 import Template
+
+
+def render_yaml(args):
+    template_file = 'manifest.template'
+    out_file = 'snort.yaml'
+
+    try:
+        with open(template_file) as f:
+            tmpl = Template(f.read())
+        output = tmpl.render(
+            image_path=args['image_path'],
+            image_name=args['image_name'],
+            image_tag=args['image_tag'],
+            deploy_name=args['deploy_name'],
+            grpc_port=args['grpc_port'],
+            redis_port=args['redis_port'],
+            http_port=args['http_port']
+        )
+        with open(out_file, "wb") as fh:
+            fh.write(output)
+        return "Generated manifest for {}".format(args['deploy_name'])
+    except Exception as e:
+        print(e)
+        return "Unable to generate manifest for {}".format(
+                                        args['deploy_name'])
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+            '--image_name', default='clover-ns-snort-ids',
+            help='The image name to use')
+    parser.add_argument(
+            '--image_path', default='localhost:5000',
+            help='The path to the images to use')
+    parser.add_argument(
+            '--image_tag', default='latest',
+            help='The image tag to use')
+    parser.add_argument(
+            '--deploy_name', default='snort-ids',
+            help='The k8s deploy name to use')
+    parser.add_argument(
+            '--redis_port', default='6379',
+            help='The redis port to connect to for alerts')
+    parser.add_argument(
+            '--http_port', default='80',
+            help='Analyze http traffic on this port')
+    parser.add_argument(
+            '--grpc_port', default='50052',
+            help='The image tag to use')
+    args = parser.parse_args()
+    print(render_yaml(vars(args)))