Terraform plugin crash setting spec.generator.clusters.template.spec.source.directory=true

[mcanevet]

Terraform Version, ArgoCD Provider Version and ArgoCD Version

Terraform version: `v1.8.2`
ArgoCD provider version: `v6.1.1`
ArgoCD version: `v2.11.3`

Affected Resource(s)

• argocd_application_set

Terraform Configuration Files

resource "argocd_application_set" "cluster_addons" {
  metadata {
    name = "cluster-addons"
  }

  spec {
    generator {
      clusters {
        template {
          spec {
            source {
              directory {
                recurse = true
              }
            }
          }
        }
      }
    }

    template {
      metadata {
        name = "cluster-addons"
      }

      spec {
        project = "default"

        source {
          repo_url        = "{{metadata.annotations.addons_repo_url}}"
          path            = "{{metadata.annotations.addons_repo_basepath}}{{metadata.annotations.addons_repo_path}}"
          target_revision = "{{metadata.annotations.addons_repo_revision}}"
        }

        destination {
          namespace = "argocd"
          server    = "{{name}}"
        }

        sync_policy {
          automated {
            prune     = true
            self_heal = true
          }
        }
      }
    }
  }
}

Debug Output

Panic Output

The plugin encountered an error, and failed to respond to the plugin6.(*GRPCProvider).ApplyResourceChange call. The plugin logs may contain more details.
╵

Stack trace from the terraform-provider-argocd_v6.1.1 plugin:

panic: runtime error: index out of range [0] with length 0

goroutine 77 [running]:
github.com/oboukili/terraform-provider-argocd/argocd.expandApplicationSetTemplate({_, _}, _)
        github.com/oboukili/terraform-provider-argocd/argocd/structure_application_set.go:812 +0x39c
github.com/oboukili/terraform-provider-argocd/argocd.expandApplicationSetClustersGenerator({0x103b0d9e0?, 0x140013bdd40}, 0xc4?)
        github.com/oboukili/terraform-provider-argocd/argocd/structure_application_set.go:114 +0x194
github.com/oboukili/terraform-provider-argocd/argocd.expandApplicationSetGenerators({0x1400154d870, 0x1, 0x10315d5b5?}, 0x9?)
        github.com/oboukili/terraform-provider-argocd/argocd/structure_application_set.go:70 +0xe0
github.com/oboukili/terraform-provider-argocd/argocd.expandApplicationSetSpec(_, _, _)
        github.com/oboukili/terraform-provider-argocd/argocd/structure_application_set.go:26 +0xc8
github.com/oboukili/terraform-provider-argocd/argocd.expandApplicationSet(_, _, _)
        github.com/oboukili/terraform-provider-argocd/argocd/structure_application_set.go:17 +0xb0
github.com/oboukili/terraform-provider-argocd/argocd.resourceArgoCDApplicationSetCreate({0x1040833e0, 0x140013bc000}, 0x0?, {0x103e0ef40?, 0x14000407180?})
        github.com/oboukili/terraform-provider-argocd/argocd/resource_argocd_application_set.go:44 +0x178
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).create(0x14000cba620, {0x104083418, 0x14000eff050}, 0xd?, {0x103e0ef40, 0x14000407180})
        github.com/hashicorp/terraform-plugin-sdk/v2@v2.30.0/helper/schema/resource.go:778 +0xe8
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).Apply(0x14000cba620, {0x104083418, 0x14000eff050}, 0x1400177a270, 0x1400168c980, {0x103e0ef40, 0x14000407180})
        github.com/hashicorp/terraform-plugin-sdk/v2@v2.30.0/helper/schema/resource.go:909 +0x8a0
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*GRPCProviderServer).ApplyResourceChange(0x140006a6120, {0x104083418?, 0x14000efee70?}, 0x140016823c0)
        github.com/hashicorp/terraform-plugin-sdk/v2@v2.30.0/helper/schema/grpc_provider.go:1072 +0xb78
github.com/hashicorp/terraform-plugin-mux/tf5to6server.v5tov6Server.ApplyResourceChange({{0x104099860?, 0x140006a6120?}}, {0x104083418, 0x14000efee70}, 0x0?)
        github.com/hashicorp/terraform-plugin-mux@v0.12.0/tf5to6server/tf5to6server.go:37 +0x58
github.com/hashicorp/terraform-plugin-mux/tf6muxserver.(*muxServer).ApplyResourceChange(0x104083370?, {0x104083418?, 0x14000efeb40?}, 0x14001682370)
        github.com/hashicorp/terraform-plugin-mux@v0.12.0/tf6muxserver/mux_server_ApplyResourceChange.go:36 +0x188
github.com/hashicorp/terraform-plugin-go/tfprotov6/tf6server.(*server).ApplyResourceChange(0x14000b12280, {0x104083418?, 0x14000efe150?}, 0x14000380070)
        github.com/hashicorp/terraform-plugin-go@v0.19.1/tfprotov6/tf6server/server.go:857 +0x3bc
github.com/hashicorp/terraform-plugin-go/tfprotov6/internal/tfplugin6._Provider_ApplyResourceChange_Handler({0x103ed31c0?, 0x14000b12280}, {0x104083418, 0x14000efe150}, 0x1400168c000, 0x0)
        github.com/hashicorp/terraform-plugin-go@v0.19.1/tfprotov6/internal/tfplugin6/tfplugin6_grpc.pb.go:467 +0x170
google.golang.org/grpc.(*Server).processUnaryRPC(0x140000361e0, {0x104083418, 0x14000efe0c0}, {0x1040923c0, 0x140005c8680}, 0x14001688000, 0x14000d5e2d0, 0x105b16518, 0x0)
        google.golang.org/grpc@v1.59.0/server.go:1343 +0xc6c
google.golang.org/grpc.(*Server).handleStream(0x140000361e0, {0x1040923c0, 0x140005c8680}, 0x14001688000)
        google.golang.org/grpc@v1.59.0/server.go:1737 +0x9f0
google.golang.org/grpc.(*Server).serveStreams.func1.1()
        google.golang.org/grpc@v1.59.0/server.go:986 +0x88
created by google.golang.org/grpc.(*Server).serveStreams.func1
        google.golang.org/grpc@v1.59.0/server.go:997 +0x174

Error: The terraform-provider-argocd_v6.1.1 plugin crashed!

Steps to Reproduce

Expected Behavior

Should generate this ApplicationSet resource:

apiVersion: argoproj.io/v1alpha1
kind: ApplicationSet
metadata:
  name: cluster-addons
  namespace: argocd
spec:
  syncPolicy:
    preserveResourcesOnDeletion: true
  generators:
    - clusters: {}
  template:
    metadata:
      name: cluster-addons
    spec:
      project: default
      source:
        repoURL: '{{metadata.annotations.addons_repo_url}}'
        path: '{{metadata.annotations.addons_repo_basepath}}{{metadata.annotations.addons_repo_path}}'
        targetRevision: '{{metadata.annotations.addons_repo_revision}}'
        directory:
          recurse: true
      destination:
        namespace: argocd
        name: '{{name}}'
      syncPolicy:
        automated: {}

Actual Behavior

crashes

Important Factoids

When not setting spec.generator.clusters.template.spec.source.directory, the resource is properly created.

References

Community Note

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