Added initial nginx services

- Proxy allows ingress traffic to be sent to another element in
service mesh
- Mirroring is also in the default configuration
- Default configuration is to proxy to a clover-server and mirror
to snort-ids
- A location_path (URI in HTTP requests) can be reconfigured to
restrict proxing; default to '/'
- A proxy_path can be reconfigured to specify an alternate destination
- A mirror path can be reconfigured to specify where traffic
will be spanned
- The default server_port (listen port) for the proxy is 9180 but can be
reconfigured
- The default server_name is http-proxy but can be reconfigured
- Reconfiguration is done over GRPC with jinja2 template for nginx
- Currently snort ids sends alerts to proxy with stub code in GRPC

- Refactored the code to have a nginx base with subservices
- Proxy, Load Balancer (lb), and Server can share code - mainly GRPC
server
- Nginx subservices have separate docker builds

- Improved build scripts for CI
- Render yaml manifests dynamically
- Improve nginx_client for runtime modifications (but not really
useful yet)

Change-Id: Icbff6890021bcc8a8da4690c9261205d6e1ca43a
Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/samples/services/nginx/docker/grpc/nginx.proto b/samples/services/nginx/docker/grpc/nginx.proto
new file mode 100644
index 0000000..3779a82
--- /dev/null
+++ b/samples/services/nginx/docker/grpc/nginx.proto
@@ -0,0 +1,51 @@
+// 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
+
+syntax = "proto3";
+
+package nginx;
+
+// The controller service definition.
+service Controller {
+
+  rpc ModifyProxy (ConfigProxy) returns (NginxReply) {}
+  rpc ModifyServer (ConfigServer) returns (NginxReply) {}
+  rpc ModifyLB (ConfigLB) returns (NginxReply) {}
+  rpc ProcessAlerts (AlertMessage) returns (NginxReply) {}
+}
+
+message AlertMessage {
+  string event_id = 1;
+  string redis_key = 2;
+}
+
+message ConfigProxy {
+  string server_port = 1;
+  string server_name = 2;
+  string location_path = 3;
+  string proxy_path = 4;
+  string mirror_path = 5;
+}
+
+message ConfigServer {
+  string server_port = 1;
+  string server_name = 2;
+  string site_root = 3;
+  string site_index = 4;
+}
+
+message ConfigLB {
+  string server_port = 1;
+  string server_name = 2;
+  string slb_list = 3;
+  string slb_group = 4;
+  string lb_path = 5;
+}
+
+message NginxReply {
+  string message = 1;
+}