open-vault/builtin/logical/database/dbplugin/server.go
Brian Kassouf e943a60041
Plugin version negotiation (#5434)
* Plugin version updates

* Update datatbase plugins

* Revert netRPC deletions

* Revert netRPC deletions

* Update plugins to serve both versions

* Update database plugins

* Add Initialize back in

* revert pointer changes

* Add deprecation warning

* Update tests

* Update go-plugin

* Review Feedback
2018-10-19 15:56:17 -07:00

50 lines
1.2 KiB
Go

package dbplugin
import (
"crypto/tls"
"github.com/hashicorp/go-plugin"
"github.com/hashicorp/vault/helper/pluginutil"
)
// Serve is called from within a plugin and wraps the provided
// Database implementation in a databasePluginRPCServer object and starts a
// RPC server.
func Serve(db Database, tlsProvider func() (*tls.Config, error)) {
plugin.Serve(ServeConfig(db, tlsProvider))
}
func ServeConfig(db Database, tlsProvider func() (*tls.Config, error)) *plugin.ServeConfig {
// pluginSets is the map of plugins we can dispense.
pluginSets := map[int]plugin.PluginSet{
3: plugin.PluginSet{
"database": &DatabasePlugin{
GRPCDatabasePlugin: &GRPCDatabasePlugin{
Impl: db,
},
},
},
4: plugin.PluginSet{
"database": &GRPCDatabasePlugin{
Impl: db,
},
},
}
conf := &plugin.ServeConfig{
HandshakeConfig: handshakeConfig,
VersionedPlugins: pluginSets,
TLSProvider: tlsProvider,
GRPCServer: plugin.DefaultGRPCServer,
}
// If we do not have gRPC support fallback to version 3
// Remove this block in 0.13
if !pluginutil.GRPCSupport() {
conf.GRPCServer = nil
delete(conf.VersionedPlugins, 4)
}
return conf
}