migrated demo setup configuration from VILLASweb repo

.gitmodules

+[submodule "node"]
+	path = node
+	url = ../VILLASnode
+[submodule "backend"]
+	path = backend
+	url = ../VILLASweb-backend
+[submodule "frontend"]
+	path = frontend
+	url = ../VILLASweb

Dockerfile.nginx

+FROM nginx:stable-alpine
+
+COPY etc/nginx/villas.conf /etc/nginx/conf.d/default.conf

Dockerfile.node

+FROM villas/node:latest
+
+COPY etc/node/*.conf /etc/villas/node/

backend @ 13d2641b

+Subproject commit 13d2641b2df01052ed742ec436c9bed3df36c9f0

docker-compose.yml

+version: "2"
+
+volumes:
+  database:
+    driver: local
+  website:
+
+services:
+  # Build the frontend with node into a Docker volume
+  # This container does nothing useful beside providing an
+  # assets container to the nginx service
+  frontend:
+    build:
+      context: frontend
+    volumes:
+      - website:/usr/src/app/build
+
+  # The VILLASweb backend
+  backend:
+    build:
+      context: backend
+    environment:
+      - NODE_ENV=production
+    restart: always
+
+  nginx:
+    build:
+      context: .
+      dockerfile: Dockerfile.nginx
+    ports:
+      - "80:80"
+      - "443:443"
+    volumes:
+      - website:/www
+
+  # The MongoDB database for the VILLASweb backend
+  database:
+    image: mongo:latest
+    user: mongodb
+    volumes:
+      - database:/data/db
+    restart: always
+    user: mongodb
+
+  # VILLASnode, the gateway between UDP and WebSocket traffic
+  node:
+    build:
+      context: .
+      dockerfile: Dockerfile.node
+    privileged: true
+    restart: always
+    command: node /etc/villas/node/websocket-demo.conf
+    volumes:
+      - /villas:/villas
+      - ./etc/node:/etc/villas/node
+
+  # Web Interface for MongoDB
+  mongo-express:
+    image: mongo-express
+    environment:
+      ME_CONFIG_MONGODB_SERVER: database
+      ME_CONFIG_BASICAUTH_USERNAME: admin
+      ME_CONFIG_BASICAUTH_PASSWORD: mongo-admin
+    ports:
+      - "8081:8081"
+
+  # AMQP broker for VILLAScontroller
+#  broker:
+#    image: rabbitmq:management
+#    environment:
+#      RABBITMQ_DEFAULT_USER: "villas"
+#      RABBITMQ_DEFAULT_PASS: "s3c0sim4!"
+#    ports:
+#      - "8080:15672"
+#      - "5672:5672"

etc/nginx/villas.conf

+server {
+  listen      80 default_server;
+  server_name VILLASweb;
+
+  # backend location
+  location /api/ {
+    proxy_redirect off;
+    proxy_set_header Host $http_host;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+    # rewrite url to exclude /api on context broker side
+    rewrite ^/api/?(.*) /api/$1 break;
+
+    proxy_pass http://backend:4000/;
+  }
+
+  location /public {
+    proxy_pass http://backend:4000/public;
+  }
+
+  location /ws/api/ {
+    proxy_pass http://node/api/;
+  }
+
+  location /ws {
+    proxy_pass http://node/;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+  }
+
+  # frontend location
+  location / {
+    root /www;
+    index index.html;
+    
+    try_files $uri $uri/ /index.html;
+  }
+
+  # error pages
+  error_page 404 /404.html;
+  location = /404.html {
+    root /usr/share/nginx/html;
+  }
+
+  error_page 500 502 503 504 50x.html;
+  location = /50x.html {
+    root /usr/share/nginx/html;
+  }
+}

etc/node/websocket-demo-files.conf

+/** Example configuration file for VILLASnode.
+ *
+ * The syntax of this file is similar to JSON.
+ * A detailed description of the format can be found here:
+ *   http://www.hyperrealm.com/libconfig/libconfig_manual.html#Configuration-Files
+ *
+ * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+ * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
+ * @license GNU General Public License (version 3)
+ *
+ * VILLASnode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *********************************************************************************/
+
+stats = 2;
+
+nodes = {
+	file_ssA = {
+		type = "file",
+
+		in = {
+#			uri = "https://OOKc0UfswqvgRp0@rwth-aachen.sciebo.de/public.php/webdav/inl-csu/ssA_cosim_inl-csu_20170726_03-28-21.csv",
+			uri = "/villas/data/GenericCoSimExmp/inl-csu/ssA_cosim_inl-csu_20170726_03-28-21.csv"
+			eof = "rewind"
+		}
+	},
+	file_ssB = {
+		type = "file",
+
+		in = {
+#			uri = "https://OOKc0UfswqvgRp0@rwth-aachen.sciebo.de/public.php/webdav/inl-csu/ssB_cosim_inl-csu_20170726_03-27-19.csv",
+			uri = "/villas/data/GenericCoSimExmp/inl-csu/ssB_cosim_inl-csu_20170726_03-27-19.csv"
+			eof = "rewind"
+		}
+	}
+	sig_1 = {
+		type = "signal",
+		
+		signal = "mixed",
+		values = 4,
+		rate = 50,
+		frequency = 0.5
+		stddev = 0.2
+	},
+	ws_sig = {
+		type = "websocket",
+		vectorize = 10,
+	},
+	ws_ssA = {
+		type = "websocket",
+		vectorize = 1,
+	},
+	ws_ssB = {
+		type = "websocket",
+		vectorize = 1,
+	}
+};
+
+############       List of paths       ############
+
+paths = (
+	{ in = "sig_1", out = "ws_sig", hooks = ( { type = "stats" } ) },
+
+	{ in = "file_ssA", out = "ws_ssA", hooks = ( { type = "decimate", ratio = 200 } ) },
+	{ in = "file_ssB", out = "ws_ssB", hooks = ( { type = "decimate", ratio = 200 } ) }
+);

etc/node/websocket-demo.conf

+/** Example configuration file for VILLASnode.
+ *
+ * The syntax of this file is similar to JSON.
+ * A detailed description of the format can be found here:
+ *   http://www.hyperrealm.com/libconfig/libconfig_manual.html#Configuration-Files
+ *
+ * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+ * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
+ * @license GNU General Public License (version 3)
+ *
+ * VILLASnode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *********************************************************************************/
+
+nodes = {
+	sig_1 = {
+		type = "signal",
+		
+		signal = "mixed",
+		values = 4,
+		rate = 25
+	},
+	ws_1 = {
+		type = "websocket",
+		description = "Demo Channel",
+		vectorize = 50,
+		source = {
+			simulator = "OP5600",
+			location = "ACS lab"
+		},
+		series = (
+			{ label = "Random walk", unit = "V" },
+			{ label = "Sine",        unit = "A" },
+			{ label = "Rect",        unit = "Var"},
+			{ label = "Ramp",        unit = "°C" }
+		)
+	}
+};
+
+############       List of paths       ############
+
+paths = (
+	{
+		in = "sig_1",
+		out = "ws_1",
+		reverse = false
+	}
+);

etc/node/websocket.conf

+/** Example configuration file for VILLASnode.
+ *
+ * The syntax of this file is similar to JSON.
+ * A detailed description of the format can be found here:
+ *   http://www.hyperrealm.com/libconfig/libconfig_manual.html#Configuration-Files
+ *
+ * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
+ * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
+ * @license GNU General Public License (version 3)
+ *
+ * VILLASnode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *********************************************************************************/
+
+nodes = {
+	ws_1 = {
+		type = "websocket",
+		description = "Demo Channel",
+		#vectorize = 10,
+		source = {
+			simulator = "OP5600",
+			location = "ACS lab"
+		},
+		series = (
+			{ label = "Random walk", unit = "V" },
+			{ label = "Sine",        unit = "A" },
+			{ label = "Rect",        unit = "Var"},
+			{ label = "Ramp",        unit = "°C" }
+		)
+  },
+  udp_1 = {
+    type = "socket",
+    layer = "udp",
+    
+    remote = "signal:12001"
+    local = "node:12000"
+  },
+};
+
+
+############       List of paths       ############
+
+paths = (
+	{ in = "udp_1", out = "ws_1", reverse = true }
+);

frontend @ 8abd8feb

+Subproject commit 8abd8feb9226e8b5eb1106aae9310d48ee4221b1

node @ 8c881a87

+Subproject commit 8c881a878a468d007fdb44fcc0ff6d9a6bbf5554