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99 lines
2.8 KiB
Go
99 lines
2.8 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package tofu
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import (
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"log"
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"github.com/hashicorp/hcl/v2"
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"github.com/opentofu/opentofu/internal/addrs"
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"github.com/opentofu/opentofu/internal/configs"
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"github.com/opentofu/opentofu/internal/states"
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"github.com/opentofu/opentofu/internal/tfdiags"
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)
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// ImportOpts are used as the configuration for Import.
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type ImportOpts struct {
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// Targets are the targets to import
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Targets []*ImportTarget
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// SetVariables are the variables set outside of the configuration,
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// such as on the command line, in variables files, etc.
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SetVariables InputValues
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}
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// ImportTarget is a single resource to import,
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// in legacy (CLI) import mode.
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type ImportTarget struct {
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// Config is the original import block for this import. This might be null
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// if the import did not originate in config.
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Config *configs.Import
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// Addr is the address for the resource instance that the new object should
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// be imported into.
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Addr addrs.AbsResourceInstance
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// ID is the ID of the resource to import. This is resource-specific.
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ID hcl.Expression
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}
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// Import takes already-created external resources and brings them
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// under OpenTofu management. Import requires the exact type, name, and ID
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// of the resources to import.
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//
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// This operation is idempotent. If the requested resource is already
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// imported, no changes are made to the state.
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//
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// Further, this operation also gracefully handles partial state. If during
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// an import there is a failure, all previously imported resources remain
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// imported.
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func (c *Context) Import(config *configs.Config, prevRunState *states.State, opts *ImportOpts) (*states.State, tfdiags.Diagnostics) {
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var diags tfdiags.Diagnostics
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// Hold a lock since we can modify our own state here
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defer c.acquireRun("import")()
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// Don't modify our caller's state
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state := prevRunState.DeepCopy()
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log.Printf("[DEBUG] Building and walking import graph")
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variables := opts.SetVariables
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// Initialize our graph builder
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builder := &PlanGraphBuilder{
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ImportTargets: opts.Targets,
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Config: config,
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State: state,
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RootVariableValues: variables,
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Plugins: c.plugins,
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Operation: walkImport,
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}
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// Build the graph
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graph, graphDiags := builder.Build(addrs.RootModuleInstance)
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diags = diags.Append(graphDiags)
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if graphDiags.HasErrors() {
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return state, diags
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}
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// Walk it
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walker, walkDiags := c.walk(graph, walkImport, &graphWalkOpts{
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Config: config,
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InputState: state,
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})
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diags = diags.Append(walkDiags)
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if walkDiags.HasErrors() {
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return state, diags
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}
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// Data sources which could not be read during the import plan will be
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// unknown. We need to strip those objects out so that the state can be
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// serialized.
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walker.State.RemovePlannedResourceInstanceObjects()
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newState := walker.State.Close()
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return newState, diags
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}
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