grafana/pkg/plugins/backendplugin/manager/plugin_settings_test.go
Dimitris Sotirakis d42bfedd9e
Add ability to override config variables with env variables (#32554)
* Add ability to override config variables with env variables

* Inline checkForOverrides

* Update pkg/plugins/backendplugin/manager/plugin_settings.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
2021-03-31 18:51:16 +02:00

97 lines
2.8 KiB
Go

package manager
import (
"os"
"sort"
"testing"
"github.com/grafana/grafana/pkg/setting"
"github.com/stretchr/testify/require"
)
func TestPluginSettings(t *testing.T) {
t.Run("Should only extract from sections beginning with 'plugin.' in config", func(t *testing.T) {
cfg := &setting.Cfg{
PluginSettings: setting.PluginSettings{
"plugin": map[string]string{
"key1": "value1",
"key2": "value2",
},
},
}
ps := getPluginSettings("plugin", cfg)
require.Len(t, ps, 2)
t.Run("Should skip path setting", func(t *testing.T) {
cfg.PluginSettings["plugin"]["path"] = "value"
ps := getPluginSettings("plugin", cfg)
require.Len(t, ps, 2)
})
t.Run("Should skip id setting", func(t *testing.T) {
cfg.PluginSettings["plugin"]["id"] = "value"
ps := getPluginSettings("plugin", cfg)
require.Len(t, ps, 2)
})
t.Run("Should return expected environment variables from plugin settings ", func(t *testing.T) {
ps := getPluginSettings("plugin", cfg)
env := ps.ToEnv("GF_PLUGIN", []string{"GF_VERSION=6.7.0"})
sort.Strings(env)
require.Len(t, env, 3)
require.EqualValues(t, []string{"GF_PLUGIN_KEY1=value1", "GF_PLUGIN_KEY2=value2", "GF_VERSION=6.7.0"}, env)
})
t.Run("Should override config variable with environment variable ", func(t *testing.T) {
_ = os.Setenv("GF_PLUGIN_KEY1", "sth")
t.Cleanup(func() {
_ = os.Unsetenv("GF_PLUGIN_KEY1")
})
ps := getPluginSettings("plugin", cfg)
env := ps.ToEnv("GF_PLUGIN", []string{"GF_VERSION=6.7.0"})
sort.Strings(env)
require.Len(t, env, 3)
require.EqualValues(t, []string{"GF_PLUGIN_KEY1=sth", "GF_PLUGIN_KEY2=value2", "GF_VERSION=6.7.0"}, env)
})
t.Run("Config variable doesn't match env variable ", func(t *testing.T) {
_ = os.Setenv("GF_PLUGIN_KEY3", "value3")
t.Cleanup(func() {
_ = os.Unsetenv("GF_PLUGIN_KEY3")
})
ps := getPluginSettings("plugin", cfg)
env := ps.ToEnv("GF_PLUGIN", []string{"GF_VERSION=6.7.0"})
sort.Strings(env)
require.Len(t, env, 3)
require.EqualValues(t, []string{"GF_PLUGIN_KEY1=value1", "GF_PLUGIN_KEY2=value2", "GF_VERSION=6.7.0"}, env)
})
t.Run("Should override missing config variable with environment variable ", func(t *testing.T) {
cfg := &setting.Cfg{
PluginSettings: setting.PluginSettings{
"plugin": map[string]string{
"key1": "value1",
"key2": "",
},
},
}
ps := getPluginSettings("plugin", cfg)
require.Len(t, ps, 2)
_ = os.Setenv("GF_PLUGIN_KEY2", "sth")
t.Cleanup(func() {
_ = os.Unsetenv("GF_PLUGIN_KEY1")
})
env := ps.ToEnv("GF_PLUGIN", []string{"GF_VERSION=6.7.0"})
sort.Strings(env)
require.Len(t, env, 3)
require.EqualValues(t, []string{"GF_PLUGIN_KEY1=value1", "GF_PLUGIN_KEY2=sth", "GF_VERSION=6.7.0"}, env)
})
})
}