111 lines
3.6 KiB
Go
111 lines
3.6 KiB
Go
package terraform
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import (
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"log"
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"github.com/hashicorp/terraform/internal/configs"
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"github.com/hashicorp/terraform/internal/dag"
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)
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// GraphNodeAttachResourceConfig is an interface that must be implemented by nodes
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// that want resource configurations attached.
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type GraphNodeAttachResourceConfig interface {
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GraphNodeConfigResource
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// Sets the configuration
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AttachResourceConfig(*configs.Resource)
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}
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// AttachResourceConfigTransformer goes through the graph and attaches
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// resource configuration structures to nodes that implement
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// GraphNodeAttachManagedResourceConfig or GraphNodeAttachDataResourceConfig.
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//
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// The attached configuration structures are directly from the configuration.
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// If they're going to be modified, a copy should be made.
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type AttachResourceConfigTransformer struct {
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Config *configs.Config // Config is the root node in the config tree
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}
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func (t *AttachResourceConfigTransformer) Transform(g *Graph) error {
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// Go through and find GraphNodeAttachResource
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for _, v := range g.Vertices() {
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// Only care about GraphNodeAttachResource implementations
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arn, ok := v.(GraphNodeAttachResourceConfig)
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if !ok {
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continue
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}
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// Determine what we're looking for
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addr := arn.ResourceAddr()
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// Get the configuration.
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config := t.Config.Descendent(addr.Module)
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if config == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: %q (%T) has no configuration available", dag.VertexName(v), v)
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continue
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}
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for _, r := range config.Module.ManagedResources {
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rAddr := r.Addr()
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if rAddr != addr.Resource {
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// Not the same resource
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continue
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}
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log.Printf("[TRACE] AttachResourceConfigTransformer: attaching to %q (%T) config from %s", dag.VertexName(v), v, r.DeclRange)
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arn.AttachResourceConfig(r)
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// attach the provider_meta info
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if gnapmc, ok := v.(GraphNodeAttachProviderMetaConfigs); ok {
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log.Printf("[TRACE] AttachResourceConfigTransformer: attaching provider meta configs to %s", dag.VertexName(v))
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if config == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no config set on the transformer for %s", dag.VertexName(v))
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continue
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}
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if config.Module == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no module in config for %s", dag.VertexName(v))
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continue
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}
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if config.Module.ProviderMetas == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no provider metas defined for %s", dag.VertexName(v))
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continue
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}
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gnapmc.AttachProviderMetaConfigs(config.Module.ProviderMetas)
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}
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}
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for _, r := range config.Module.DataResources {
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rAddr := r.Addr()
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if rAddr != addr.Resource {
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// Not the same resource
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continue
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}
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log.Printf("[TRACE] AttachResourceConfigTransformer: attaching to %q (%T) config from %#v", dag.VertexName(v), v, r.DeclRange)
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arn.AttachResourceConfig(r)
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// attach the provider_meta info
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if gnapmc, ok := v.(GraphNodeAttachProviderMetaConfigs); ok {
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log.Printf("[TRACE] AttachResourceConfigTransformer: attaching provider meta configs to %s", dag.VertexName(v))
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if config == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no config set on the transformer for %s", dag.VertexName(v))
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continue
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}
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if config.Module == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no module in config for %s", dag.VertexName(v))
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continue
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}
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if config.Module.ProviderMetas == nil {
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log.Printf("[TRACE] AttachResourceConfigTransformer: no provider metas defined for %s", dag.VertexName(v))
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continue
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}
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gnapmc.AttachProviderMetaConfigs(config.Module.ProviderMetas)
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}
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}
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}
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return nil
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}
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