kopium do not generate struct with nesting additionalProperties

[chenyuanrun]

This problem could be reproduced with crd cephclusters.ceph.rook.io: https://github.com/rook/rook/blob/v1.13.5/deploy/examples/crds.yaml#L894-L912

kopium generate something like:

#[derive(CustomResource, Serialize, Deserialize, Clone, Debug, JsonSchema)]
#[kube(group = "ceph.rook.io", version = "v1", kind = "CephCluster", plural = "cephclusters")]
#[kube(namespaced)]
#[kube(status = "CephClusterStatus")]
pub struct CephClusterSpec {
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub annotations: Option<BTreeMap<String, CephClusterAnnotations>>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "cephConfig")]
    pub ceph_config: Option<BTreeMap<String, CephClusterCephConfig>>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "cephVersion")]
    pub ceph_version: Option<CephClusterCephVersion>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "cleanupPolicy")]
    pub cleanup_policy: Option<CephClusterCleanupPolicy>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "continueUpgradeAfterChecksEvenIfNotHealthy")]
    pub continue_upgrade_after_checks_even_if_not_healthy: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "crashCollector")]
    pub crash_collector: Option<CephClusterCrashCollector>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub csi: Option<CephClusterCsi>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub dashboard: Option<CephClusterDashboard>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "dataDirHostPath")]
    pub data_dir_host_path: Option<String>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "disruptionManagement")]
    pub disruption_management: Option<CephClusterDisruptionManagement>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub external: Option<CephClusterExternal>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "healthCheck")]
    pub health_check: Option<CephClusterHealthCheck>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub labels: Option<BTreeMap<String, CephClusterLabels>>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "logCollector")]
    pub log_collector: Option<CephClusterLogCollector>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub mgr: Option<CephClusterMgr>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub mon: Option<CephClusterMon>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub monitoring: Option<CephClusterMonitoring>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub network: Option<CephClusterNetwork>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub placement: Option<BTreeMap<String, CephClusterPlacement>>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "priorityClassNames")]
    pub priority_class_names: Option<BTreeMap<String, String>>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "removeOSDsIfOutAndSafeToRemove")]
    pub remove_os_ds_if_out_and_safe_to_remove: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub resources: Option<BTreeMap<String, CephClusterResources>>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub security: Option<CephClusterSecurity>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "skipUpgradeChecks")]
    pub skip_upgrade_checks: Option<bool>,
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub storage: Option<CephClusterStorage>,
    #[serde(default, skip_serializing_if = "Option::is_none", rename = "waitTimeoutForHealthyOSDInMinutes")]
    pub wait_timeout_for_healthy_osd_in_minutes: Option<i64>,
}

and failed to compile:

error[E0412]: cannot find type `CephClusterAnnotations` in this scope
   --> src/crds/cephclusters_ceph_rook_io.rs:17:46
    |
17  |     pub annotations: Option<BTreeMap<String, CephClusterAnnotations>>,
    |                                              ^^^^^^^^^^^^^^^^^^^^^^
...
846 | pub struct CephClusterMonitoring {
    | -------------------------------- similarly named struct `CephClusterMonitoring` defined here
    |
help: a struct with a similar name exists
    |
17  |     pub annotations: Option<BTreeMap<String, CephClusterMonitoring>>,
    |                                              ~~~~~~~~~~~~~~~~~~~~~
help: you might be missing a type parameter
    |
15  | pub struct CephClusterSpec<CephClusterAnnotations> {
    |                           ++++++++++++++++++++++++

error[E0412]: cannot find type `CephClusterCephConfig` in this scope
  --> src/crds/cephclusters_ceph_rook_io.rs:19:46
   |
19 |     pub ceph_config: Option<BTreeMap<String, CephClusterCephConfig>>,
   |                                              ^^^^^^^^^^^^^^^^^^^^^
...
71 | pub struct CephClusterCephVersion {
   | --------------------------------- similarly named struct `CephClusterCephVersion` defined here
   |
help: a struct with a similar name exists
   |
19 |     pub ceph_config: Option<BTreeMap<String, CephClusterCephVersion>>,
   |                                              ~~~~~~~~~~~~~~~~~~~~~~
help: you might be missing a type parameter
   |
15 | pub struct CephClusterSpec<CephClusterCephConfig> {
   |                           +++++++++++++++++++++++

error[E0412]: cannot find type `CephClusterLabels` in this scope
  --> src/crds/cephclusters_ceph_rook_io.rs:41:41
   |
41 |     pub labels: Option<BTreeMap<String, CephClusterLabels>>,
   |                                         ^^^^^^^^^^^^^^^^^ not found in this scope
   |
help: you might be missing a type parameter
   |
15 | pub struct CephClusterSpec<CephClusterLabels> {
   |                           +++++++++++++++++++

error[E0412]: cannot find type `CephClusterAnnotations` in this scope
   --> src/crds/cephclusters_ceph_rook_io.rs:17:46
    |
17  |     pub annotations: Option<BTreeMap<String, CephClusterAnnotations>>,
    |                                              ^^^^^^^^^^^^^^^^^^^^^^ help: a struct with a similar name exists: `CephClusterMonitoring`
...
846 | pub struct CephClusterMonitoring {
    | -------------------------------- similarly named struct `CephClusterMonitoring` defined here

error[E0412]: cannot find type `CephClusterCephConfig` in this scope
  --> src/crds/cephclusters_ceph_rook_io.rs:19:46
   |
19 |     pub ceph_config: Option<BTreeMap<String, CephClusterCephConfig>>,
   |                                              ^^^^^^^^^^^^^^^^^^^^^ help: a struct with a similar name exists: `CephClusterCephVersion`
...
71 | pub struct CephClusterCephVersion {
   | --------------------------------- similarly named struct `CephClusterCephVersion` defined here

error[E0412]: cannot find type `CephClusterLabels` in this scope
  --> src/crds/cephclusters_ceph_rook_io.rs:41:41
   |
41 |     pub labels: Option<BTreeMap<String, CephClusterLabels>>,
   |                                         ^^^^^^^^^^^^^^^^^ not found in this scope

For more information about this error, try `rustc --explain E0412`.
error: could not compile `operator` (bin "operator") due to 6 previous errors

[chenyuanrun]

These are the fields that do not generate:

annotations:
  additionalProperties:
    additionalProperties:
      type: string
    type: object
  nullable: true
  type: object
  x-kubernetes-preserve-unknown-fields: true
cephConfig:
  additionalProperties:
    additionalProperties:
      type: string
    type: object
  nullable: true
  type: object
labels:
  additionalProperties:
    additionalProperties:
      type: string
    type: object
  nullable: true
  type: object
  x-kubernetes-preserve-unknown-fields: true

All of those crd have a nesting additionalProperties

[chenyuanrun]

Here is where the annotation crd field generated from: https://github.com/rook/rook/blob/master/pkg/apis/ceph.rook.io/v1/annotations.go#L23-L33

// AnnotationsSpec is the main spec annotation for all daemons
// +kubebuilder:pruning:PreserveUnknownFields
// +nullable
type AnnotationsSpec map[KeyType]Annotations


// Annotations are annotations
type Annotations map[string]string

It should be translated to something like BTreeMap<String, BTreeMap<String, String>> .

[chenyuanrun]

This is the minimal crd to reproduce this issue:

---
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  annotations:
    controller-gen.kubebuilder.io/version: v0.14.0
  name: cephclusters.ceph.rook.io
spec:
  group: ceph.rook.io
  names:
    kind: CephCluster
    listKind: CephClusterList
    plural: cephclusters
    singular: cephcluster
  scope: Namespaced
  versions:
    - name: v1
      schema:
        openAPIV3Schema:
          properties:
            apiVersion:
              type: string
            kind:
              type: string
            metadata:
              type: object
            spec:
              properties:
                annotations:
                  additionalProperties:
                    additionalProperties:
                      type: string
                    type: object
                  nullable: true
                  type: object
                  x-kubernetes-preserve-unknown-fields: true
                cephConfig:
                  additionalProperties:
                    additionalProperties:
                      type: string
                    type: object
                  nullable: true
                  type: object
                cephVersion:
                  nullable: true
                  properties:
                    allowUnsupported:
                      type: boolean
                    image:
                      type: string
                    imagePullPolicy:
                      enum:
                        - IfNotPresent
                        - Always
                        - Never
                        - ""
                      type: string
                  type: object
                cleanupPolicy:
                  nullable: true
                  properties:
                    allowUninstallWithVolumes:
                      type: boolean
                    confirmation:
                      nullable: true
                      pattern: ^$|^yes-really-destroy-data$
                      type: string
                    sanitizeDisks:
                      nullable: true
                      properties:
                        dataSource:
                          enum:
                            - zero
                            - random
                          type: string
                        iteration:
                          format: int32
                          type: integer
                        method:
                          enum:
                            - complete
                            - quick
                          type: string
                      type: object
                  type: object
                continueUpgradeAfterChecksEvenIfNotHealthy:
                  type: boolean
                crashCollector:
                  nullable: true
                  properties:
                    daysToRetain:
                      type: integer
                    disable:
                      type: boolean
                  type: object
              type: object

[chenyuanrun]

I think this field:

annotations:
  additionalProperties:
    additionalProperties:
      type: string
    type: object
  nullable: true
  type: object
  x-kubernetes-preserve-unknown-fields: true

may be translated to:

#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct CephClusterAnnotations {
    #[serde(flatten)]
    additional_properties: BTreeMap<String, String>,
}

[chenyuanrun]

Run kopium with RUST_LOG=trace:

[2024-03-06T00:13:45Z DEBUG kopium] schema: {
      "properties": {
        "apiVersion": {
          "type": "string"
        },
        "kind": {
          "type": "string"
        },
        "metadata": {
          "type": "object"
        },
        "spec": {
          "properties": {
            "annotations": {
              "additionalProperties": {
                "additionalProperties": {
                  "type": "string"
                },
                "type": "object"
              },
              "nullable": true,
              "type": "object",
              "x-kubernetes-preserve-unknown-fields": true
            },
            "cephConfig": {
              "additionalProperties": {
                "additionalProperties": {
                  "type": "string"
                },
                "type": "object"
              },
              "nullable": true,
              "type": "object"
            },
            "cephVersion": {
              "nullable": true,
              "properties": {
                "allowUnsupported": {
                  "type": "boolean"
                },
                "image": {
                  "type": "string"
                },
                "imagePullPolicy": {
                  "enum": [
                    "IfNotPresent",
                    "Always",
                    "Never",
                    ""
                  ],
                  "type": "string"
                }
              },
              "type": "object"
            },
            "cleanupPolicy": {
              "nullable": true,
              "properties": {
                "allowUninstallWithVolumes": {
                  "type": "boolean"
                },
                "confirmation": {
                  "nullable": true,
                  "pattern": "^$|^yes-really-destroy-data$",
                  "type": "string"
                },
                "sanitizeDisks": {
                  "nullable": true,
                  "properties": {
                    "dataSource": {
                      "enum": [
                        "zero",
                        "random"
                      ],
                      "type": "string"
                    },
                    "iteration": {
                      "format": "int32",
                      "type": "integer"
                    },
                    "method": {
                      "enum": [
                        "complete",
                        "quick"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                }
              },
              "type": "object"
            },
            "continueUpgradeAfterChecksEvenIfNotHealthy": {
              "type": "boolean"
            },
            "crashCollector": {
              "nullable": true,
              "properties": {
                "daysToRetain": {
                  "type": "integer"
                },
                "disable": {
                  "type": "boolean"
                }
              },
              "type": "object"
            }
          },
          "type": "object"
        }
      }
    }
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] not recursing into ignored apiVersion
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] not recursing into ignored kind
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] not recursing into ignored metadata
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] Generating struct for Spec (under CephClusterSpec)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got additional: {"additionalProperties":{"type":"string"},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member annotations of type BTreeMap<String, CephClusterSpecAnnotations>
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got additional: {"additionalProperties":{"type":"string"},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member cephConfig of type BTreeMap<String, CephClusterSpecCephConfig>
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member cephVersion of type CephClusterSpecCephVersion
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member cleanupPolicy of type CephClusterSpecCleanupPolicy
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member continueUpgradeAfterChecksEvenIfNotHealthy of type bool
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member crashCollector of type CephClusterSpecCrashCollector
[2024-03-06T00:13:45Z WARN  kopium::analyzer] not generating type Annotations - using object map
[2024-03-06T00:13:45Z WARN  kopium::analyzer] not generating type CephConfig - using object map
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] Generating struct for CephVersion (under CephClusterSpecCephVersion)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member allowUnsupported of type bool
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member image of type String
[2024-03-06T00:13:45Z TRACE kopium::analyzer] got enum string: {"nullable":true,"properties":{"allowUnsupported":{"type":"boolean"},"image":{"type":"string"},"imagePullPolicy":{"enum":["IfNotPresent","Always","Never",""],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member imagePullPolicy of type CephClusterSpecCephVersionImagePullPolicy
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into allowUnsupported ('boolean' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into image ('string' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] analyzing enum {"nullable":true,"properties":{"allowUnsupported":{"type":"boolean"},"image":{"type":"string"},"imagePullPolicy":{"enum":["IfNotPresent","Always","Never",""],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("IfNotPresent"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member IfNotPresent
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("Always"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member Always
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("Never"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member Never
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String(""))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member 
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] Generating struct for CleanupPolicy (under CephClusterSpecCleanupPolicy)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member allowUninstallWithVolumes of type bool
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member confirmation of type String
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member sanitizeDisks of type CephClusterSpecCleanupPolicySanitizeDisks
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into allowUninstallWithVolumes ('boolean' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into confirmation ('string' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] Generating struct for SanitizeDisks (under CephClusterSpecCleanupPolicySanitizeDisks)
[2024-03-06T00:13:45Z TRACE kopium::analyzer] got enum string: {"nullable":true,"properties":{"dataSource":{"enum":["zero","random"],"type":"string"},"iteration":{"format":"int32","type":"integer"},"method":{"enum":["complete","quick"],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member dataSource of type CephClusterSpecCleanupPolicySanitizeDisksDataSource
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member iteration of type i32
[2024-03-06T00:13:45Z TRACE kopium::analyzer] got enum string: {"nullable":true,"properties":{"dataSource":{"enum":["zero","random"],"type":"string"},"iteration":{"format":"int32","type":"integer"},"method":{"enum":["complete","quick"],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member method of type CephClusterSpecCleanupPolicySanitizeDisksMethod
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] analyzing enum {"nullable":true,"properties":{"dataSource":{"enum":["zero","random"],"type":"string"},"iteration":{"format":"int32","type":"integer"},"method":{"enum":["complete","quick"],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("zero"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member zero
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("random"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member random
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into iteration ('integer' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] analyzing enum {"nullable":true,"properties":{"dataSource":{"enum":["zero","random"],"type":"string"},"iteration":{"format":"int32","type":"integer"},"method":{"enum":["complete","quick"],"type":"string"}},"type":"object"}
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("complete"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member complete
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] got enum JSON(String("quick"))
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with enum member quick
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into continueUpgradeAfterChecksEvenIfNotHealthy ('boolean' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] Generating struct for CrashCollector (under CephClusterSpecCrashCollector)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member daysToRetain of type i64
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] with optional member disable of type bool
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into daysToRetain ('integer' is not a container)
[2024-03-06T00:13:45Z DEBUG kopium::analyzer] ..not recursing into disable ('boolean' is not a container)

[chenyuanrun]

I will manually patch the generated files with

// Patched by xxx until https://github.com/kube-rs/kopium/issues/202 is fixed.
// Do not edit it manually.

#[derive(Serialize, Deserialize, Clone, Debug, JsonSchema)]
pub struct CephClusterAnnotations {
    #[serde(flatten)]
    additional_properties: BTreeMap<String, String>,
}

#[derive(Serialize, Deserialize, Clone, Debug, JsonSchema)]
pub struct CephClusterCephConfig {
    #[serde(flatten)]
    additional_properties: BTreeMap<String, String>,
}

#[derive(Serialize, Deserialize, Clone, Debug, JsonSchema)]
pub struct CephClusterLabels {
    #[serde(flatten)]
    additional_properties: BTreeMap<String, String>,
}

before this issue is fixed.

[clux]

Thanks for this bug report!

This seems like it will be a bug yes. The part of the analyzer where this ends up is probably a bit too primitive. Have added some premature failing tests in #212 based on your yaml snippets.

Do you have examples of actual yaml containing these nested annotations/labels structs? I am unsure whether to do something with flatten in the general kopium case or whether to nest maps.

[chenyuanrun]

@clux Sorry for my late reply. There is a example in rook repo: https://github.com/rook/rook/blob/02a552ce00c4f61703e09e5e3ad8aaca14f724ce/deploy/examples/cluster-test.yaml#L49

It seems to be something like dict[str, dict[str, str]] .