Netdata api

config/netdata.conf

@@ -1 +1,2 @@
 CONFIG_PACKAGE_netdata=y
+CONFIG_PACKAGE_fping=y

files/etc/nginx/conf.d/netdata.locations

@@ -0,0 +1,21 @@
+location = /netdata {
+    return 301 /netdata/;
+}
+
+location ~ /netdata/(?<ndpath>.*) {
+    proxy_redirect off;
+    proxy_set_header Host $host;
+
+    proxy_set_header X-Forwarded-Host $host;
+    proxy_set_header X-Forwarded-Server $host;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_http_version 1.1;
+    proxy_pass_request_headers on;
+    proxy_set_header Connection "keep-alive";
+    proxy_store off;
+    proxy_pass http://127.0.0.1:19999/$ndpath$is_args$args;
+
+    gzip on;
+    gzip_proxied any;
+    gzip_types *;
+}

packages/ns-api/Makefile

@@ -101,6 +101,8 @@ define Package/ns-api/install
 	$(INSTALL_DATA) ./files/ns.mwan.json $(1)/usr/share/rpcd/acl.d/
 	$(INSTALL_BIN) ./files/ns.dpi $(1)/usr/libexec/rpcd/
 	$(INSTALL_DATA) ./files/ns.dpi.json $(1)/usr/share/rpcd/acl.d/
+	$(INSTALL_BIN) ./files/ns.netdata $(1)/usr/libexec/rpcd/
+	$(INSTALL_DATA) ./files/ns.netdata.json $(1)/usr/share/rpcd/acl.d/
 	$(INSTALL_BIN) ./files/ns.storage $(1)/usr/libexec/rpcd/
 	$(INSTALL_DATA) ./files/ns.storage.json $(1)/usr/share/rpcd/acl.d/
 	$(INSTALL_BIN) ./files/ns.account $(1)/usr/libexec/rpcd/

packages/ns-api/README.md

@@ -2966,3 +2966,37 @@ Example response:
   }
 }
  ```
+
+## ns.netdata
+
+Configure netdata reporting daemon.
+
+### get-configuration
+
+Get current netdata configuration:
+```
+api-cli ns.netdata get-configuration
+```
+
+Response example:
+```json
+{
+  "hosts": [
+    "1.2.3.4",
+    "google.it"
+  ],
+  "path": "/netdata"
+}
+```
+
+### set-hosts
+
+Configure hosts to be monitored by fping:
+```
+api-cli ns.netdata set-hosts --data '{"hosts": ["1.1.1.1", "google.com"]}'
+```
+
+Response example:
+```json
+{"result": "success"}
+```

packages/ns-api/files/ns.netdata

@@ -0,0 +1,46 @@
+#!/usr/bin/python3
+
+#
+# Copyright (C) 2022 Nethesi3 S.r.l.
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+# Read and set fping configuration for netdata
+
+import sys
+import json
+
+# FIXME: set real path /etc/netdata/fping.conf
+conf_file = "/tmp/fping.conf"
+
+def get_config():
+    hosts = []
+    try:
+        with open(conf_file, 'r') as fp:
+            for line in fp:
+                hosts.append(line.rstrip())
+    except:
+        pass
+    return {"hosts": hosts, "path": "/netdata"}
+
+def set_config(config):
+    # FIXME: enable fping plugin on netdata 
+    try:
+        with open(conf_file, 'w') as fp:
+            for h in config['hosts']:
+                fp.write(f"{h}\n")
+        return {"success": True}
+    except:
+        return {"success": False}
+
+cmd = sys.argv[1]
+
+if cmd == 'list':
+    print(json.dumps({"get-configuration": {}, "set-hosts": {"hosts": ["1.1.1.1", "google.com"]}}))
+else:
+    action = sys.argv[2]
+    if action == "get-configuration":
+        print(json.dumps(get_config()))
+    elif action == "set-hosts":
+        args = json.loads(sys.stdin.read())
+        print(json.dumps(set_config(args)))

packages/ns-api/files/ns.netdata.json

@@ -0,0 +1,13 @@
+{
+  "netdata-manager": {
+    "description": "Read and set netdata configuration",
+    "write": {},
+    "read": {
+      "ubus": {
+        "ns.netdata": [
+          "*"
+        ]
+      }
+    }
+  }
+}