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Plugins: Add inititialization stage to plugin loader pipeline (#72667)

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* first pass

* migrate tests

* simplify

* fix comments

* fix linter

* nil checks

* remove comment
This commit is contained in:
Will Browne
2023-08-02 18:29:12 +02:00
committed by GitHub
parent 77e7ae2a1b
commit ad2705fa0b
17 changed files with 1809 additions and 1166 deletions
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132
pkg/plugins/manager/pipeline/initialization/steps_test.go Normal file
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package initialization
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"github.com/grafana/grafana/pkg/plugins"
"github.com/grafana/grafana/pkg/plugins/backendplugin"
"github.com/grafana/grafana/pkg/plugins/log"
)
func TestInitializer_Initialize(t *testing.T) {
t.Run("core backend datasource", func(t *testing.T) {
p := &plugins.Plugin{
JSONData: plugins.JSONData{
ID: "test",
Type: plugins.TypeDataSource,
Includes: []*plugins.Includes{
{
Name: "Example dashboard",
Type: plugins.TypeDashboard,
},
},
Backend: true,
},
Class: plugins.ClassCore,
}
stepFunc := NewBackendClientInitStep(&fakeEnvVarsProvider{}, &fakeBackendProvider{plugin: p})
var err error
p, err = stepFunc(context.Background(), p)
require.NoError(t, err)
c, exists := p.Client()
require.True(t, exists)
require.NotNil(t, c)
})
t.Run("renderer", func(t *testing.T) {
p := &plugins.Plugin{
JSONData: plugins.JSONData{
ID: "test",
Type: plugins.TypeRenderer,
Dependencies: plugins.Dependencies{
GrafanaVersion: ">=8.x",
},
Backend: true,
},
Class: plugins.ClassExternal,
}
stepFunc := NewBackendClientInitStep(&fakeEnvVarsProvider{}, &fakeBackendProvider{plugin: p})
var err error
p, err = stepFunc(context.Background(), p)
require.NoError(t, err)
c, exists := p.Client()
require.True(t, exists)
require.NotNil(t, c)
})
t.Run("secretsmanager", func(t *testing.T) {
p := &plugins.Plugin{
JSONData: plugins.JSONData{
ID: "test",
Type: plugins.TypeSecretsManager,
Dependencies: plugins.Dependencies{
GrafanaVersion: ">=8.x",
},
Backend: true,
},
Class: plugins.ClassExternal,
}
stepFunc := NewBackendClientInitStep(&fakeEnvVarsProvider{}, &fakeBackendProvider{plugin: p})
var err error
p, err = stepFunc(context.Background(), p)
require.NoError(t, err)
c, exists := p.Client()
require.True(t, exists)
require.NotNil(t, c)
})
t.Run("non backend plugin app", func(t *testing.T) {
p := &plugins.Plugin{
JSONData: plugins.JSONData{
Backend: false,
},
}
i := NewBackendClientInitStep(&fakeEnvVarsProvider{}, &fakeBackendProvider{
plugin: p,
})
var err error
p, err = i(context.Background(), p)
require.NoError(t, err)
c, exists := p.Client()
require.False(t, exists)
require.Nil(t, c)
})
}
type fakeBackendProvider struct {
plugins.BackendFactoryProvider
plugin *plugins.Plugin
}
func (f *fakeBackendProvider) BackendFactory(_ context.Context, _ *plugins.Plugin) backendplugin.PluginFactoryFunc {
return func(_ string, _ log.Logger, _ []string) (backendplugin.Plugin, error) {
return f.plugin, nil
}
}
type fakeEnvVarsProvider struct {
GetFunc func(ctx context.Context, p *plugins.Plugin) []string
}
func (f *fakeEnvVarsProvider) Get(ctx context.Context, p *plugins.Plugin) ([]string, error) {
if f.GetFunc != nil {
return f.GetFunc(ctx, p), nil
}
return nil, nil
}