opentofu/internal/terraform/context_import.go
James Bardin 5bca0c609b RemovePlannedResourceInstanceObjects during import
Because import uses the complete planning process, it must also call
RemovePlannedResourceInstanceObjects. This is required to serialized the
resulting state if there are data sources with an ObjectPlanned status
because they could not be read during the import process.
2022-09-25 14:41:53 -04:00

93 lines
2.7 KiB
Go

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