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67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package plugin6
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import (
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"github.com/hashicorp/go-plugin"
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proto "github.com/opentofu/opentofu/internal/tfplugin6"
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)
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const (
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// The constants below are the names of the plugins that can be dispensed
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// from the plugin server.
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ProviderPluginName = "provider"
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// DefaultProtocolVersion is the protocol version assumed for legacy clients
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// that don't specify a particular version during their handshake. Since we
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// explicitly set VersionedPlugins in Serve, this number does not need to
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// change with the protocol version and can effectively stay 4 forever
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// (unless we need the "biggest hammer" approach to break all provider
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// compatibility).
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DefaultProtocolVersion = 4
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)
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// Handshake is the HandshakeConfig used to configure clients and servers.
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var Handshake = plugin.HandshakeConfig{
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// The ProtocolVersion is the version that must match between TF core
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// and TF plugins.
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ProtocolVersion: DefaultProtocolVersion,
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// The magic cookie values should NEVER be changed.
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MagicCookieKey: "TF_PLUGIN_MAGIC_COOKIE",
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MagicCookieValue: "d602bf8f470bc67ca7faa0386276bbdd4330efaf76d1a219cb4d6991ca9872b2",
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}
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type GRPCProviderFunc func() proto.ProviderServer
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// ServeOpts are the configurations to serve a plugin.
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type ServeOpts struct {
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GRPCProviderFunc GRPCProviderFunc
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}
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// Serve serves a plugin. This function never returns and should be the final
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// function called in the main function of the plugin.
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func Serve(opts *ServeOpts) {
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plugin.Serve(&plugin.ServeConfig{
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HandshakeConfig: Handshake,
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VersionedPlugins: pluginSet(opts),
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GRPCServer: plugin.DefaultGRPCServer,
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})
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}
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func pluginSet(opts *ServeOpts) map[int]plugin.PluginSet {
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plugins := map[int]plugin.PluginSet{}
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// add the new protocol versions if they're configured
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if opts.GRPCProviderFunc != nil {
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plugins[6] = plugin.PluginSet{}
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if opts.GRPCProviderFunc != nil {
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plugins[6]["provider"] = &GRPCProviderPlugin{
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GRPCProvider: opts.GRPCProviderFunc,
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}
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}
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}
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return plugins
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}
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