Nginx multi servers

.promu.yml

@@ -1,5 +1,5 @@
 repository:
-    path: github.com/hnlq715/nginx-vts-exporter
+    path: github.com/StereoRu/nginx-vts-exporter
 build:
     flags: -a -tags netgo
     ldflags: |
@@ -19,4 +19,4 @@ crossbuild:
         - darwin/amd64
         - darwin/386
         - windows/amd64
-        - windows/386
+        - windows/386

Dockerfile

@@ -1,8 +1,11 @@
 FROM        alpine:latest
 MAINTAINER  Sophos <[email protected]>
 
+VOLUME /etc/nginx-vts-exporter/
+
 WORKDIR /bin
 COPY bin/nginx-vts-exporter /bin/
+COPY bin/config.json /etc/nginx-vts-exporter/
 COPY docker-entrypoint.sh /bin/
 RUN chmod +x /bin/nginx-vts-exporter
 

README.md

@@ -9,6 +9,7 @@ Simple server that scrapes Nginx vts stats and exports them via HTTP for Prometh
 * [Dependency](#dependency)
 * [Download](#download)
 * [Compile](#compile)
+* [Config](#config)
 * [Run](#run) 
 * [Dockerized](#dockerized)
   * [Environment variables](#environment-variables)
@@ -38,6 +39,14 @@ export the binary inside ./bin/ directory
 ./build-binary.sh
 ```
 
+## Config
+The application can have a configuration file.
+By default, it is located in ```/etc/nginx-vts-exporter/config.json```
+This can be overridden via the command line option ```-config.file /some/path/config.json```
+Parameters specified in the configuration file are less priority than command line parameters or environment variables.
+If the command-line parameter ```-nginx.scrape_uri http://somedomain.com/status/format/json``` is specified, it will be added to those listed in the configuration file.
+If there is no parameter nginxScrapeURIs.hostName in the configuration file, it will be taken from the data nginx-vts-module
+
 ## Run
 
 ``` shell
@@ -89,13 +98,14 @@ Documents about exposed Prometheus metrics
 
 Nginx data         | Name                            | Exposed informations     
 ------------------ | ------------------------------- | ------------------------
- **Connections**   | `{NAMESPACE}_server_connections`| status [active, reading, writing, waiting, accepted, handled]
+ **Connections**   | `{NAMESPACE}_server_connections`| status [active, reading, writing, waiting, accepted, handled], hostName _(server hostName or hostName from config)_
+
 
 **Metrics output example**
 
 ``` txt
 # Server Connections
-nginx_server_connections{status="accepted"} 70606
+nginx_server_connections{status="accepted", hostName="ngx_host"} 70606
 ```
 
 ### Server zones
@@ -104,21 +114,25 @@ nginx_server_connections{status="accepted"} 70606
 
 Nginx data         | Name                            | Exposed informations     
 ------------------ | ------------------------------- | ------------------------
- **Requests**      | `{NAMESPACE}_server_requests`    | code [2xx, 3xx, 4xx, 5xx, total], host _(or domain name)_
- **Bytes**         | `{NAMESPACE}_server_bytes`       | direction [in, out], host _(or domain name)_
- **Cache**         | `{NAMESPACE}_server_cache`       | status [bypass, expired, hit, miss, revalidated, scarce, stale, updating], host _(or domain name)_
+ **Requests**      | `{NAMESPACE}_server_requests`    | code [2xx, 3xx, 4xx, 5xx, total], host _(or domain name)_, hostName _(server hostName or hostName from config)_
+ **Bytes**         | `{NAMESPACE}_server_bytes`       | direction [in, out], host _(or domain name)_, hostName _(server hostName or hostName from config)_
+ **Cache**         | `{NAMESPACE}_server_cache`       | status [bypass, expired, hit, miss, revalidated, scarce, stale, updating], host _(or domain name)_, hostName _(server hostName or hostName from config)_
+ **requestMsec**   | `{NAMESPACE}_server_requestMsec` | host _(or domain name)_, hostName _(server hostName or hostName from config)_
 
 **Metrics output example**
 
 ``` txt
 # Server Requests
-nginx_server_requests{code="1xx",host="test.domain.com"} 0
+nginx_server_requests{code="1xx",host="test.domain.com", hostName="ngx_host"} 0
 
 # Server Bytes
-nginx_server_bytes{direction="in",host="test.domain.com"} 21
+nginx_server_bytes{direction="in",host="test.domain.com", hostName="ngx_host"} 21
 
 # Server Cache
-nginx_server_cache{host="test.domain.com",status="bypass"} 2
+nginx_server_cache{host="test.domain.com",status="bypass", hostName="ngx_host"} 2
+
+# Server RequestMsec
+nginx_server_requestMsec{host="test.domain.com", hostName="ngx_host"} 18
 ```
 
 ### Upstreams
@@ -127,19 +141,19 @@ nginx_server_cache{host="test.domain.com",status="bypass"} 2
 
 Nginx data         | Name                            | Exposed informations     
 ------------------ | ------------------------------- | ------------------------
- **Requests**      | `{NAMESPACE}_upstream_requests` | code [2xx, 3xx, 4xx, 5xx and total], upstream _(or upstream name)_
- **Bytes**         | `{NAMESPACE}_upstream_bytes`    | direction [in, out], upstream _(or upstream name)_
- **Response time** | `{NAMESPACE}_upstream_response` | backend (or server), in_bytes, out_bytes, upstream _(or upstream name)_
+ **Requests**      | `{NAMESPACE}_upstream_requests` | code [2xx, 3xx, 4xx, 5xx and total], upstream _(or upstream name)_, hostName _(server hostName or hostName from config)_
+ **Bytes**         | `{NAMESPACE}_upstream_bytes`    | direction [in, out], upstream _(or upstream name)_, hostName _(server hostName or hostName from config)_
+ **Response time** | `{NAMESPACE}_upstream_response` | backend (or server), in_bytes, out_bytes, upstream _(or upstream name)_, hostName _(server hostName or hostName from config)_
 
 **Metrics output example**
 
 ``` txt
 # Upstream Requests
-nginx_upstream_requests{code="1xx",upstream="XXX-XXXXX-3000"} 0
+nginx_upstream_requests{code="1xx",upstream="XXX-XXXXX-3000", hostName="ngx_host"} 0
 
 # Upstream Bytes
-nginx_upstream_bytes{direction="in",upstream="XXX-XXXXX-3000"} 0
+nginx_upstream_bytes{direction="in",upstream="XXX-XXXXX-3000", hostName="ngx_host"} 0
 
 # Upstream Response time
-nginx_upstream_response{backend="10.2.15.10:3000",upstream="XXX-XXXXX-3000"} 99
+nginx_upstream_response{backend="10.2.15.10:3000",upstream="XXX-XXXXX-3000", hostName="ngx_host"} 99
 ```

bin/config.json

@@ -0,0 +1,11 @@
+{
+    "telemetryAddress": ":9913",
+    "telemetryEndpoint": "/metrics",
+    "metricsNamespace": "nginx",
+    "nginxScrapeURIs": [
+        {
+            "hostName": "localhost",
+            "uri": "http://localhost/status/format/json"
+        }
+    ]
+}

docker-entrypoint.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 set -eo pipefail
-default_status="$NGIX_HOST/status/format/json"
+default_status="$NGINX_HOST/status/format/json"
 NGINX_STATUS=${NGINX_STATUS:-$default_status}
 METRICS_NS=${METRICS_NS:-$DEFAULT_METRICS_NS}