feat(portal-api): retrieve metrics from prometheus

packages/cp-gql-schema/package.json

@@ -1,6 +1,6 @@
 {
   "name": "joyent-cp-gql-schema",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "license": "MPL-2.0",
   "repository": "github:yldio/joyent-portal",
   "main": "index.js",

packages/cp-gql-schema/schema.gql

@@ -263,7 +263,7 @@ type Query {
   ): [Service]
   importableDeploymentGroups: [DeploymentGroup]
   # start and end should be .toISOString() date strings
-  metrics(names: [MerticName], instances: [String], start: String, end: String): [InstanceMetric]
+  metrics(deploymentGroupId: ID!, names: [MerticName]!, instances: [String]!, start: String!, end: String!): [InstanceMetric]
 }
 
 type Mutation {

packages/portal-api/lib/data/index.js

@@ -9,19 +9,19 @@ const Url = require('url');
 const Util = require('util');
 
 // 3rd party modules
-// const CPClient = require('cp-client');
+const Boom = require('boom');
 const DockerClient = require('docker-compose-client');
 const Dockerode = require('dockerode');
+const ForceArray = require('force-array');
 const Hoek = require('hoek');
-const Boom = require('boom');
-const Triton = require('triton');
+const Find = require('lodash.find');
+const Flatten = require('lodash.flatten');
+const Get = require('lodash.get');
+const UniqBy = require('lodash.uniqby');
 const ParamCase = require('param-case');
 const Penseur = require('penseur');
-const UniqBy = require('lodash.uniqby');
-const Find = require('lodash.find');
-const Get = require('lodash.get');
-const Flatten = require('lodash.flatten');
-const ForceArray = require('force-array');
+const Prometheus = require('prom-query');
+const Triton = require('triton');
 const Uuid = require('uuid/v4');
 const VAsync = require('vasync');
 
@@ -2463,6 +2463,66 @@ class Data extends EventEmitter {
 
     this.createDeploymentGroup(deploymentGroup, handleNewDeploymentGroup);
   }
+
+  getMetrics ({ deploymentGroupId, names, instances, start, end }, cb) {
+    this.deploymentGroupId({ deploymentGroupId, name: 'prometheus' }, (err, services) => {
+      if (err || !services || !services.length) {
+        return cb(err);
+      }
+
+      const service = services.shift();
+      service.instances().then((instances) => {
+        const instance = instances.shift();
+        this._triton.getInstance(instance.machine_id, (err, inst) => {
+          if (err) {
+            return cb(err);
+          }
+
+          const metricNames = [
+            'mem_agg_usage',
+            'cpu_sys_usage',
+            'net_agg_bytes_in'
+          ];
+          const metricNameEnum = [
+            'AVG_MEM_BYTES',
+            'AVG_LOAD_PERCENT',
+            'AGG_NETWORK_BYTES'
+          ];
+
+          const formattedNames = names.map((name) => {
+            const i = metricNameEnum.indexOf(name);
+
+            return (i === -1) ? name : metricNames[i];
+          });
+
+          const prometheus = new Prometheus({ url: `http://${inst.primaryIp}:9090` });
+          prometheus.getMetrics({ names: formattedNames, instances, start, end }, (err, metrics) => {
+            if (err) {
+              return cb(err);
+            }
+
+            const formattedMetrics = metrics.map((metric) => {
+              const i = metricNames.indexOf(metric.name);
+              if (i !== -1) {
+                metric.name = metricNameEnum[i];
+              }
+
+              metric.metrics = metric.metrics.map((entry) => {
+                entry.time = entry.time.toISOString();
+                return entry;
+              });
+
+              return metric;
+            });
+
+            cb(null, metrics);
+          });
+        });
+      }).catch((err) => {
+        return cb(err);
+      });
+    });
+  }
 }
 
 module.exports = Data;

packages/portal-api/lib/resolvers.js

@@ -27,7 +27,8 @@ module.exports = (data) => {
     'datacenters',
     'instanceMetric',
     'config',
-    'importableDeploymentGroups'
+    'importableDeploymentGroups',
+    'metrics'
   ];
 
   const mutations = [

packages/portal-api/package.json

@@ -25,8 +25,8 @@
     "good": "^7.2.0",
     "good-console": "^6.4.0",
     "good-squeeze": "^5.0.2",
-    "hapi": "^16.4.3",
-    "lab": "^14.1.1",
+    "hapi": "^16.5.2",
+    "lab": "^14.2.0",
     "lodash.findindex": "^4.6.0",
     "wreck": "^12.2.3"
   },
@@ -38,7 +38,7 @@
     "force-array": "^3.1.0",
     "graphi": "^2.2.1",
     "hoek": "^4.1.1",
-    "joyent-cp-gql-schema": "^1.3.0",
+    "joyent-cp-gql-schema": "^1.5.0",
     "lodash.find": "^4.6.0",
     "lodash.flatten": "^4.4.0",
     "lodash.get": "^4.4.2",
@@ -47,9 +47,10 @@
     "param-case": "^2.1.1",
     "penseur": "^7.12.3",
     "piloted": "^3.1.1",
+    "prom-query": "^1.0.0",
     "throat": "^4.0.0",
     "toppsy": "^1.1.0",
-    "triton": "^5.2.0",
+    "triton": "^5.3.1",
     "triton-watch": "^1.1.0",
     "uuid": "^3.1.0",
     "vasync": "^1.6.4"