terraform/plugin/serve.go

55 lines
1.8 KiB
Go

package plugin
import (
"github.com/hashicorp/go-plugin"
"github.com/hashicorp/terraform/terraform"
)
// The constants below are the names of the plugins that can be dispensed
// from the plugin server.
const (
ProviderPluginName = "provider"
ProvisionerPluginName = "provisioner"
)
// Handshake is the HandshakeConfig used to configure clients and servers.
var Handshake = plugin.HandshakeConfig{
// The ProtocolVersion is the version that must match between TF core
// and TF plugins. This should be bumped whenever a change happens in
// one or the other that makes it so that they can't safely communicate.
// This could be adding a new interface value, it could be how
// helper/schema computes diffs, etc.
ProtocolVersion: 4,
// The magic cookie values should NEVER be changed.
MagicCookieKey: "TF_PLUGIN_MAGIC_COOKIE",
MagicCookieValue: "d602bf8f470bc67ca7faa0386276bbdd4330efaf76d1a219cb4d6991ca9872b2",
}
type ProviderFunc func() terraform.ResourceProvider
type ProvisionerFunc func() terraform.ResourceProvisioner
// ServeOpts are the configurations to serve a plugin.
type ServeOpts struct {
ProviderFunc ProviderFunc
ProvisionerFunc ProvisionerFunc
}
// Serve serves a plugin. This function never returns and should be the final
// function called in the main function of the plugin.
func Serve(opts *ServeOpts) {
plugin.Serve(&plugin.ServeConfig{
HandshakeConfig: Handshake,
Plugins: pluginMap(opts),
})
}
// pluginMap returns the map[string]plugin.Plugin to use for configuring a plugin
// server or client.
func pluginMap(opts *ServeOpts) map[string]plugin.Plugin {
return map[string]plugin.Plugin{
"provider": &ResourceProviderPlugin{F: opts.ProviderFunc},
"provisioner": &ResourceProvisionerPlugin{F: opts.ProvisionerFunc},
}
}