Add Tests, Provisioning and update README

.github/workflows/ci.yml

@@ -81,6 +81,6 @@ jobs:
         uses: codecov/codecov-action@v2
         with:
           directory: ./coverage/
-          files: ./coverage/lcov.info
+          files: ./coverage/lcov.info,./coverage/backend.out
           env_vars: OS,PYTHON
           fail_ci_if_error: true

CHANGELOG.md

@@ -1,7 +1,15 @@
 # Changelog
 
+## 1.1.0 (IN PROGRESS)
+
+### Features / Enhancements
+
+- Add Tests, Provisioning and update README (#1)
+
 ## 1.0.0 (2022-02-20)
 
+### Features / Enhancements
+
 - Initial release based on the Grafana 8.4.1.
 - Returns Environment Variables.
-- Allows to filter unnecessary or secured variables using Regex.
+- Allows filtering unnecessary or secured variables using Regex.

README.md

@@ -23,11 +23,32 @@ Environment data source can be installed from the Grafana Marketplace or use the
 grafana-cli plugins install volkovlabs-env-datasource
 ```
 
+![Grafana Marketplace](https://raw.githubusercontent.com/VolkovLabs/volkovlabs-env-datasource/main/src/img/grafana-marketplace.png)
+
 ## Features
 
 - Returns Environment Variables.
 - Allows to filter unnecessary or secured variables using Regex.
 
+## Provisioning
+
+Grafana supports managing data sources by adding one or more YAML config files in the `provisioning/datasources` folder.
+
+Example of provisioning the Environment Data Source with a filter `GF_` to return only Grafana related variables.
+
+```
+datasources:
+  - name: Environment
+    type: volkovlabs-env-datasource
+    access: proxy
+    isDefault: true
+    orgId: 1
+    version: 1
+    editable: true
+    jsonData:
+      filter: GF_
+```
+
 ## Feedback
 
 We love to hear from users, developers, and the whole community interested in this plugin. These are various ways to get in touch with us:

go.mod

@@ -2,4 +2,7 @@ module github.com/grafana/grafana-starter-datasource-backend
 
 go 1.16
 
-require github.com/grafana/grafana-plugin-sdk-go v0.126.0
+require (
+	github.com/grafana/grafana-plugin-sdk-go v0.126.0
+	github.com/stretchr/testify v1.7.0
+)

go.sum

@@ -194,8 +194,10 @@ github.com/klauspost/compress v1.13.1/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/magefile/mage v1.11.0 h1:C/55Ywp9BpgVVclD3lRnSYCwXTYxmSppIgLeDYlNuls=
 github.com/magefile/mage v1.11.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
@@ -595,6 +597,7 @@ google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

package.json

@@ -5,8 +5,7 @@
     "@grafana/data": "8.4.1",
     "@grafana/runtime": "8.4.1",
     "@grafana/toolkit": "8.4.1",
-    "@grafana/ui": "8.4.1",
-    "@types/lodash": "4.14.178"
+    "@grafana/ui": "8.4.1"
   },
   "engines": {
     "node": ">=16"
@@ -22,9 +21,9 @@
     "start": "docker-compose pull && docker-compose up",
     "stop": "docker-compose down",
     "test": "grafana-toolkit plugin:test",
-    "test:backend": "mage cover",
+    "test:backend": "mage coverage",
     "upgrade": "yarn upgrade --latest",
     "watch": "grafana-toolkit plugin:dev --watch"
   },
-  "version": "1.0.0"
+  "version": "1.1.0"
 }

pkg/plugin/plugin.go

@@ -79,8 +79,6 @@ func (d *Datasource) query(_ context.Context, settings PluginSettings, query bac
 	var ids []string
 	var values []string
 
-	log.DefaultLogger.Info("Query called", "filter", settings.Filter)
-
 	/**
 	 * Compile regex
 	 */
@@ -119,10 +117,10 @@ func (d *Datasource) query(_ context.Context, settings PluginSettings, query bac
  * CheckHealth handles health checks sent from Grafana to the plugin
  */
 func (d *Datasource) CheckHealth(ctx context.Context, req *backend.CheckHealthRequest) (*backend.CheckHealthResult, error) {
-	log.DefaultLogger.Info("CheckHealth called", "request", req)
+	log.DefaultLogger.Debug("CheckHealth called", "request", req)
 
 	var status = backend.HealthStatusOk
-	var message = "Data source is working"
+	var message = "Data Source is working as expected."
 
 	/**
 	 * Create response struct
@@ -141,7 +139,7 @@ func (d *Datasource) CheckHealth(ctx context.Context, req *backend.CheckHealthRe
 	 */
 	if res.Frames[0].Fields[0].Len() < 1 {
 		status = backend.HealthStatusError
-		message = "Can't find any environment variable"
+		message = "Can't find any environment variable."
 	}
 
 	return &backend.CheckHealthResult{

pkg/plugin/plugin_test.go

@@ -6,15 +6,14 @@ import (
 
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 	"github.com/grafana/grafana-starter-datasource-backend/pkg/plugin"
+	"github.com/stretchr/testify/require"
 )
 
 /**
  * Test Query
  */
 func TestQueryData(t *testing.T) {
-	settings := plugin.PluginSettings{
-		Filter: "",
-	}
+	settings := plugin.PluginSettings{}
 	ds := plugin.Datasource{Settings: &settings}
 
 	resp, err := ds.QueryData(
@@ -34,3 +33,45 @@ func TestQueryData(t *testing.T) {
 		t.Fatal("QueryData must return a response")
 	}
 }
+
+/**
+ * Test Health Check
+ */
+func TestCheckHealth(t *testing.T) {
+	settings := plugin.PluginSettings{}
+	ds := plugin.Datasource{Settings: &settings}
+
+	resp, err := ds.CheckHealth(
+		context.Background(),
+		&backend.CheckHealthRequest{},
+	)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	require.NoError(t, err)
+	require.Equal(t, resp.Status, backend.HealthStatusOk)
+}
+
+/**
+ * Test Health Check with Error
+ */
+func TestCheckHealthWithError(t *testing.T) {
+	settings := plugin.PluginSettings{
+		Filter: "ABC",
+	}
+	ds := plugin.Datasource{Settings: &settings}
+
+	resp, err := ds.CheckHealth(
+		context.Background(),
+		&backend.CheckHealthRequest{},
+	)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	require.NoError(t, err)
+	require.Equal(t, resp.Status, backend.HealthStatusError)
+}

provisioning/datasources/datasources.yaml

@@ -8,3 +8,5 @@ datasources:
     orgId: 1
     version: 1
     editable: true
+    jsonData:
+      filter: GF_

yarn.lock

@@ -2364,11 +2364,6 @@
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.149.tgz#1342d63d948c6062838fbf961012f74d4e638440"
   integrity sha512-ijGqzZt/b7BfzcK9vTrS6MFljQRPn5BFWOx8oE0GYxribu6uV+aA9zZuXI1zc/etK9E8nrgdoF2+LgUw7+9tJQ==
 
-"@types/lodash@4.14.178":
-  version "4.14.178"
-  resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.178.tgz#341f6d2247db528d4a13ddbb374bcdc80406f4f8"
-  integrity sha512-0d5Wd09ItQWH1qFbEyQ7oTQ3GZrMfth5JkbN3EvTKLXcHLRDSXeLnlvlOn0wvxVIwK5o2M8JzP/OWz7T3NRsbw==
-
 "@types/mime@^1":
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
@@ -10810,11 +10805,11 @@ rxjs@^6.6.3:
     tslib "^1.9.0"
 
 rxjs@^7.2.0:
-  version "7.3.0"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.3.0.tgz#39fe4f3461dc1e50be1475b2b85a0a88c1e938c6"
-  integrity sha512-p2yuGIg9S1epc3vrjKf6iVb3RCaAYjYskkO+jHIaV0IjOPlJop4UnodOoFb2xeNwlguqLYvGw1b1McillYb5Gw==
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-7.5.4.tgz#3d6bd407e6b7ce9a123e76b1e770dc5761aa368d"
+  integrity sha512-h5M3Hk78r6wAheJF0a5YahB1yRQKCsZ4MsGdZ5O9ETbVtjPcScGfrMmoOq7EBsCRzd4BDkvDJ7ogP8Sz5tTFiQ==
   dependencies:
-    tslib "~2.1.0"
+    tslib "^2.1.0"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
   version "5.2.1"
@@ -11990,11 +11985,6 @@ tslib@^1.10.0, tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@~2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.1.0.tgz#da60860f1c2ecaa5703ab7d39bc05b6bf988b97a"
-  integrity sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==
-
 tsutils@^3.21.0:
   version "3.21.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.21.0.tgz#b48717d394cea6c1e096983eed58e9d61715b623"