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Plugins: Use grafana-plugin-sdk-go v0.5.0 (#21116)

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* fix dispense

* plugin loading refactor

Moves common functionality of registering, starting,
stopping and restarting backend plugins to
backendplugin package.

* simplify plugin descriptors

* target sdk v0.5.0

Co-authored-by: Kyle Brandt <kyle@kbrandt.com>
This commit is contained in:
Marcus Efraimsson
2020-01-08 17:43:28 +01:00
committed by Kyle Brandt
parent 5321e7536f
commit baba1634b8
306 changed files with 81274 additions and 41083 deletions
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65
pkg/plugins/backendplugin/client.go
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@ -7,9 +7,8 @@ import (
datasourceV1 "github.com/grafana/grafana-plugin-model/go/datasource"
rendererV1 "github.com/grafana/grafana-plugin-model/go/renderer"
backend "github.com/grafana/grafana-plugin-sdk-go/backend"
sdk "github.com/grafana/grafana-plugin-sdk-go/common"
datasourceV2 "github.com/grafana/grafana-plugin-sdk-go/datasource"
transformV2 "github.com/grafana/grafana-plugin-sdk-go/transform"
"github.com/hashicorp/go-plugin"
)
@ -32,9 +31,7 @@ var handshake = plugin.HandshakeConfig{
MagicCookieValue: sdk.MagicCookieValue,
}
// NewClientConfig returns a configuration object that can be used to instantiate
// a client for the plugin described by the given metadata.
func NewClientConfig(executablePath string, logger log.Logger, versionedPlugins map[int]plugin.PluginSet) *plugin.ClientConfig {
func newClientConfig(executablePath string, logger log.Logger, versionedPlugins map[int]plugin.PluginSet) *plugin.ClientConfig {
return &plugin.ClientConfig{
Cmd: exec.Command(executablePath),
HandshakeConfig: handshake,
@ -44,38 +41,44 @@ func NewClientConfig(executablePath string, logger log.Logger, versionedPlugins
}
}
// NewDatasourceClient returns a datasource plugin client.
func NewDatasourceClient(pluginID, executablePath string, logger log.Logger) *plugin.Client {
versionedPlugins := map[int]plugin.PluginSet{
1: {
pluginID: &datasourceV1.DatasourcePluginImpl{},
},
2: {
pluginID: &datasourceV2.DatasourcePluginImpl{},
},
}
return plugin.NewClient(NewClientConfig(executablePath, logger, versionedPlugins))
// PluginDescriptor descriptor used for registering backend plugins.
type PluginDescriptor struct {
pluginID string
executablePath string
managed bool
versionedPlugins map[int]plugin.PluginSet
}
// NewRendererClient returns a renderer plugin client.
func NewRendererClient(pluginID, executablePath string, logger log.Logger) *plugin.Client {
versionedPlugins := map[int]plugin.PluginSet{
1: {
pluginID: &rendererV1.RendererPluginImpl{},
// NewBackendPluginDescriptor creates a new backend plugin descriptor
// used for registering a backend datasource plugin.
func NewBackendPluginDescriptor(pluginID, executablePath string) PluginDescriptor {
return PluginDescriptor{
pluginID: pluginID,
executablePath: executablePath,
managed: true,
versionedPlugins: map[int]plugin.PluginSet{
DefaultProtocolVersion: {
pluginID: &datasourceV1.DatasourcePluginImpl{},
},
sdk.ProtocolVersion: {
"backend": &backend.CoreGRPCPlugin{},
"transform": &backend.TransformGRPCPlugin{},
},
},
}
return plugin.NewClient(NewClientConfig(executablePath, logger, versionedPlugins))
}
// NewTransformClient returns a transform plugin client.
func NewTransformClient(pluginID, executablePath string, logger log.Logger) *plugin.Client {
versionedPlugins := map[int]plugin.PluginSet{
2: {
pluginID: &transformV2.TransformPluginImpl{},
// NewRendererPluginDescriptor creates a new renderer plugin descriptor
// used for registering a backend renderer plugin.
func NewRendererPluginDescriptor(pluginID, executablePath string) PluginDescriptor {
return PluginDescriptor{
pluginID: pluginID,
executablePath: executablePath,
managed: false,
versionedPlugins: map[int]plugin.PluginSet{
DefaultProtocolVersion: {
pluginID: &rendererV1.RendererPluginImpl{},
},
},
}
return plugin.NewClient(NewClientConfig(executablePath, logger, versionedPlugins))
}