chore(package): initial commit

Author: Peter Marton

Diff for: .eslintrc.yml

@@ -0,0 +1,48 @@
+---
+  extends: airbnb-base
+  env:
+    node: true
+    mocha: true
+    es6: true
+  parserOptions:
+    sourceType: strict
+  rules:
+    generator-star-spacing:
+      - 2
+      - before: true
+        after: true
+    no-shadow: 0
+    require-yield: 0
+    no-param-reassign: 0
+    comma-dangle:
+      - error
+      - never
+    no-underscore-dangle: 0
+    import/no-extraneous-dependencies:
+      - 2
+      - devDependencies: true
+    import/order: 0
+    no-new: 0
+    no-console: 0
+    func-names: 0
+    no-unused-expressions: 0
+    prefer-arrow-callback: 1
+    no-use-before-define:
+      - 2
+      - functions: false
+    space-before-function-paren:
+      - 2
+      - always
+    max-len:
+      - 2
+      - 120
+      - 2
+    semi:
+      - 2
+      - never
+    strict:
+      - 2
+      - global
+    arrow-parens:
+      - 2
+      - always

Diff for: .gitignore

@@ -0,0 +1,3 @@
+node_modules
+coverage
+.nyc_output

Diff for: README.md

@@ -0,0 +1,50 @@
+# opentracing-infrastructure-graph
+
+Visualizing infrastructure topology via OpenTracing instrumentation.
+
+## Requirements
+
+- Docker
+
+### Run Prometheus
+
+Modify: `/prometheus-data/prometheus.yml`, replace `192.168.0.10` with your own host machine's IP.  
+Host machine IP address: `ifconfig | grep 'inet 192'| awk '{ print $2}'`
+
+```sh
+docker run -p 9090:9090 -v "$(pwd)/prometheus-data":/prometheus-data prom/prometheus -config.file=/prometheus-data/prometheus.yml
+```
+
+Open Prometheus: [http://http://localhost:9090](http://http://localhost:9090/graph)
+
+## Getting started
+
+It will start three web servers and simulate a service call chain:  
+`server1` calls `server2` and `server3` parallel.
+
+```
+npm start
+curl http://localhost:3001
+```
+
+## Metrics between services
+
+### Throughput
+
+Prometheus query:
+
+```
+sum(rate(operation_duration_seconds_count{name="http_server"}[1m])) by (service, parent_service)  * 60
+```
+
+![Throughput between services](img/throuhput.png)
+
+### 95th response time
+
+Prometheus query:
+
+```
+histogram_quantile(0.95, sum(rate(operation_duration_seconds_bucket{name="http_server"}[1m])) by (le, service, parent_service)) * 1000
+```
+
+![95th response time between services](img/response time_95th.png)