v0.7.0

• BREAKING CHANGE: The http and bytes dependencies have been updated. They now match the tokio 0.2 ecosystem.

• BREAKING CHANGE: The Resource trait's api_version, group, kind and version methods are now API_VERSION, GROUP, KIND and VERSION associated consts of &'static str type.

• BREAKING CHANGE: The *List resource types like PodList and NodeList have now been combined into a single generic k8s_openapi::List<T> type. The API response types that contained these list types have been updated accordingly.

• BREAKING CHANGE: The optional parameters of create and replace operations are now emitted as a single common type - k8s_openapi::CreateOptional and k8s_openapi::ReplaceOptional respectively.

• BREAKING CHANGE: The response types of create, delete, delete-collection, list, patch, replace and watch operations have now been combined into generic CreateResponse<T>, DeleteResponse<T>, DeleteResponse<List<T>>, ListResponse<T>, PatchResponse<T>, ReplaceResponse<T> and WatchResponse<T> types respectively.

• BUGFIX: v1.16's k8s_openapi::apiextensions_apiserver::pkg::apis::apiextensions::v1::JSONSchemaPropsOrArray, JSONSchemaPropsOrBool and JSONSchemaPropsOrStringArray types are now generated correctly, just like their v1beta cousins.

• FEATURE: Added support for Kubernetes 1.17 under the v1_17 feature.

• FEATURE: A new k8s_openapi::ListableResource trait has been added to connect a resource type like Pod to its corresponding list type like PodList. Currently the trait only has one member - an associated const LIST_KIND that is the same as the list type's Resource::KIND.

Here are some demonstrative examples of the API changes:

• Pod::delete_namespaced_pod used to return DeleteNamespacedPodResponse. It now returns DeleteResponse<Self>.
• Pod::delete_collection_namespaced_pod used to return DeleteCollectionNamespacedPodResponse. It now returns DeleteResponse<List<Self>>.
• Pod::list_namespaced_pod used to return ListNamespacedPodResponse which had an Ok(PodList) variant. It now returns ListResponse<Self>, which has an Ok(List<Self>) variant.

Combining these response types has reduced the compile time and memory usage of the Rust compiler when compiling this crate. Notably, the compiler's memory usage now peaks at ~3 GiB from its earlier ~5 GiB, making it easier to use with environments limited to 4 GiB RAM, like CI VMs and Raspberry Pi's.

Corresponding Kubernetes API server versions:

• v1.8.15
• v1.9.11
• v1.10.13
• v1.11.10
• v1.12.10
• v1.13.12
• v1.14.10
• v1.15.9
• v1.16.6
• v1.17.2

v0.6.0

• BREAKING CHANGE: Updated url dependency, and thus the re-export, to v2. The re-export is only used internally by code-generated API functions and is not part of any public signatures, so it is only a breaking change for you if you were also using it for your own code.

• FEATURE: Added support for Kubernetes 1.16 under the v1_16 feature.

• FEATURE: The k8s-openapi-derive crate is now out of beta.

Corresponding Kubernetes API server versions:

• v1.8.15
• v1.9.11
• v1.10.13
• v1.11.10
• v1.12.10
• v1.13.12
• v1.14.8
• v1.15.5
• v1.16.2

v0.5.1

• FEATURE: The k8s-openapi crate now has a default-enabled feature named api. If the feature is disabled, the library will only contain the resource types like api::core::v1::Pod and not the associated operation functions like api::core::v1::Pod::read_namespaced_pod. The corresponding Response and Optional types will also not be accessible. If your crate does not need the operation functions, you can disable this feature to save on compile time and resources.

Corresponding Kubernetes API server versions:

• v1.8.15
• v1.9.11
• v1.10.13
• v1.11.10
• v1.12.10
• v1.13.10
• v1.14.6
• v1.15.3

v0.5.0

• BREAKING CHANGE: The optional parameters of delete, list, patch and watch operations are now emitted as a single common type - k8s_openapi::DeleteOptional, k8s_openapi::ListOptional, k8s_openapi::PatchOptional and k8s_openapi::WatchOptional respectively. For example, where an operation like k8s_openapi::api::core::v1::Pod::list_namespaced_pod used to have an optional: k8s_openapi::api::core::v1::ListNamespacedPodOptional<'_>, it now has an optional: k8s_openapi::ListOptional<'_> parameter instead.

  This is because these per-operation optional structs all had the same members.

  Furthermore, delete-collection operations like Pod::delete_collection_namespaced_pod now take two optional parameters, one of type k8s_openapi::ListOptional that determines which items will be selected for deletion, and the other of type k8s_openapi::DeleteOptional which determines how the selected items will be deleted.

• BREAKING CHANGE: Most response types had an empty Unauthorized variant, and did not have other useful variants like Forbidden or Conflict. To handle those variants, you would have had to match on the empty Other variant and manually parse the response body into a JSON value.

  Now these empty variants like Unauthorized are no longer emitted, and the previously empty Other variant is now emitted as Other(Result<Option<serde_json::Value>, Error>). If the response body is empty, the response will be parsed as Other(Ok(None)). Otherwise, it will be parsed as JSON into Other(Ok(Some(response))) or Other(Err(err)).

• BREAKING CHANGE: The apimachinery::pkg::apis::meta::v1::Patch type used to be incorrectly emitted as an empty struct. It is now emitted as an enum with variants corresponding to the three types of patches supported by Kubernetes - Json(Vec<serde_json::Value>), Merge(serde_json::Value) and StrategicMerge(serde_json::Value).

• BREAKING CHANGE: The apimachinery::pkg::apis::meta::v1::WatchEvent type used to be emitted as a struct containing a weakly-typed object and stringly-typed type_ fields. It is now generic on the type of object and is emitted as enum WatchEvent<T> with Added(T), Deleted(T), Modified(T), ErrorStatus(metav1::Status) and ErrorOther(RawExtension) members. For v1.15 and above, the enum also has a Bookmark(T) variant.

• BREAKING CHANGE: The apiextensions_apiserver::pkg::apis::apiextensions::v1beta1::CustomResourceSubresourceStatus type used to be incorrectly emitted as an empty struct. It is now emitted as a newtype around serde_json::Value

• BREAKING CHANGE: The connect and exec operations on Node, Pod and Service no longer have a corresponding response type. The response types were bogus, and these operations are not HTTP requests but SPDY or WebSocket requests anyway. The functions still return http::Request, and you will need to decompose these into types that your SPDY / WebSocket crate uses.

• BUGFIX: Operation parameters that were used as path components of the request URL (such as namespace) are now correctly encoded instead of being used verbatim.

• FEATURE: The http::Request returned by API operation functions now has the Content-Type header set if the request has a body. Particularly for patch operations, this sets the correct Content-Type header corresponding to the type of patch used.

• FEATURE: A new crate k8s-openapi-derive is now released. This crate contains a custom derive that can be used on a CRD spec type to generate the corresponding CRD type, its k8s_openapi::Resource and k8s_openapi::Metadata impls, and CRUD operations. See that crate's docs for more details.

Corresponding Kubernetes API server versions:

• v1.8.15
• v1.9.11
• v1.10.13
• v1.11.10
• v1.12.10
• v1.13.8
• v1.14.4
• v1.15.1

v0.4.0

• A new Resource trait is implemented on all resource types to get their API version, group, kind and version properties. See docs for details.

  Since the API version and kind of resource types is statically associated with their Rust types, the api_version and kind fields have been removed from these types. The fields are serialized and deserialized automatically without needing to be set.

• A new Metadata trait is implemented on all resource types that have metadata (ObjectMeta or ListMeta), and can be used to get access to this metadata.

• Fixed string responses like ReadNamespacedPodLogResponse to return ResponseError::NeedMoreData when given an empty slice, instead of returning an empty string.

• Fixed string responses like ReadNamespacedPodLogResponse to return as much data as possible before an invalid utf-8 sequence in the input slice. In the previous release, the parser would return Err even if there was valid utf-8 before the first invalid byte. It now only returns Err if the first byte of the slice is invalid.

• A new ResponseBody::advance function can be used to remove bytes from the front of the ResponseBody's internal buffer. This is useful in cases like reading a pod's logs, where the parser indicates that some bytes in the beginning of the slice are invalid, and you want to skip over them and continue parsing.

There are many breaking changes in this release, as part of modifying the generated code to be easier and safer to use:

• The crate no longer supports enabling multiple version features ('v1_8', 'v1_9', etc). One and only one version feature can be enabled.

  As before, it's recommended that only application crates enable features of this crate in their Cargo.toml, based on the version of Kubernetes they want to run against. Library crates should not enable specific features. If library crates need to emit different code based on the feature that gets enabled, they should continue to use the version detection macros (k8s_if_ge_1_8! { }, etc) around such code.

  The build script of this crate will panic and fail the build if it detects zero or more than one feature has been enabled.

• In the previous release, every enabled version was represented by a top-level module, eg enabling the v1_8 feature granted access to the k8s_openapi::v1_8 module and the k8s_openapi::v1_8::api::core::v1::Pod type. Since only one feature can be enabled now, the contents of this corresponding module are re-exported from the crate root, and the module itself is hidden. Thus enabling the v1_8 feature allows access to v1.8's Pod type through the k8s_openapi::api::core::v1::Pod path. This means crates that support multiple versions no longer need to write code like:

  k8s_if_1_8! { use k8s_openapi::v1_8::api::core::v1 as api; }
  k8s_if_1_9! { use k8s_openapi::v1_9::api::core::v1 as api; }
  k8s_if_1_10! { use k8s_openapi::v1_10::api::core::v1 as api; }
  ...

  and can instead write:

  use k8s_openapi::api::core::v1 as api;

• Support for v1.7 API servers has been dropped. Its API structure was very different from the later versions (upstream rearranged the OpenAPI spec in v1.8). Continuing to support it would've required crates to continue using k8s_if_1_7! { } and k8s_if_ge_1_7! { }. By dropping support for it, there is much less reason to use the version detection macros.

• API operation functions now have shorter names in many cases. For example Pod::read_core_v1_namespaced_pod_log is now called just Pod::read_namespaced_pod_log. The thing that is stripped from the name is a combination of the API kind ("core") and the API version ("v1"). In general, this means supporting different versions of API, like supporting Deployment::list_apps_v1beta2_namespaced_deployment on v1.8 and Deployment::list_apps_v1_namespaced_deployment on v1.9+ no longer requires version detection macros, since the function is now called Deployment::list_namespaced_deployment in both cases.

• API operations now take a single parameter for all optional parameters. This parameter implements Default such that passing in Default::default() for this parameter is equivalent to not passing any optional parameters.

  For example, the api::core::v1::Pod::list_namespaced_pod operation has one required parameter for the namespace, and the optional parameters are fields of the api::core::v1::ListNamespacedPodOptional struct which is taken as the last parameter of the function. To set one or more of these optional parameters, use struct update syntax to set those parameters and Default the rest. See the crate docs for details.

  This reduces the number of None parameters that need to be passed to all operation functions. It also means that function that differed in the number of optional parameters between Kubernetes versions no longer need version detection macros if you don't want to set any of the optional parameters. For example, Job::create_namespaced_job takes one optional parameter in v1.11 and three in v1.12. With this release, it can be called as Job::create_namespaced_job("name", &spec, Default::default()) regardless of the version.

• ResponseBody is now generic on the response type at the type level. Previously only its append_slice_and_parse function was generic on the response type.

• ResponseBody::append_slice_and_parse has been removed. This function gave the wrong impression that appending a slice would allow zero or one responses to be parsed from its buffer. In fact, more than one response can be parsed, say when parsing a sequence of WatchEvents and the appended slice contains more than one WatchEvent. Instead, there are now separate ResponseBody::append_slice and ResponseBody::parse functions. You should call ResponseBody::parse in a loop as long as it returns Ok(parsed_response).

• API operation functions now return two values in a tuple. The first value is the same http::Request<Vec<u8>> that they used to return in the previous release - this is the HTTP request with the path, query string and request body filled out according to the API operation. The second value is a function with the signature fn(http::StatusCode) -> ResponseBody<ResponseType>, where ResponseType is the type that should be used to parse the response. For example, Pod::list_namespaced_pod returns (http::Request<Vec<u8>>, fn(http::StatusCode) -> ResponseBody<ListNamespacedPodResponse>).

  In previous releases, you would've needed to read the docs to know that ListNamespacedPodResponse is the type you should use to parse the response. With this change, you can use the constructor to let the type system enforce it.

• API operations that allowed you to list or watch in the same operation are now more strongly typed. For example, in the previous release, Pod::list_core_v1_namespaced_pod's docs indicated that you should use ListCoreV1NamespacedPodResponse to parse its response. However, this function has an optional watch parameter which can be used to get a stream of WatchEvent responses instead and thus you would need to parse the response with WatchCoreV1NamespacedPodResponse instead. This WatchCoreV1NamespacedPodResponse type was the response type of the otherwise unrelated Pod::watch_core_v1_namespaced_pod operation.

  Furthermore, Kubernetes has deprecated many of these watch and watchlist operations, like Pod::watch_core_v1_namespaced_pod and Pod::watch_core_v1_namespaced_pod_list respectively, in favor of using the list operation with the watch parameter set.

  With this release, both of these issues are solved.

  The list function, like Pod::list_namespaced_pod, no longer has a watch parameter. This function always returns a list response.

  The watch function, like Pod::watch_namespaced_pod, is no longer generated from the (potentially deprecated) watch function in the OpenAPI spec. Instead, it has the same URL and parameters as the list operation. It too does not have a watch parameter, but it sets watch=true in the URL of the generated http::Request automatically. This function always returns a WatchEvent stream response.

  The watchlist function, if any, is no longer emitted. It is redundant with the watch function, since watching a single item for changes or multiple items for changes is determined by the specificity of the field_selector parameter.

Corresponding Kubernetes API server versions:

• v1.8.15
• v1.9.11
• v1.10.13
• v1.11.8
• v1.12.6
• v1.13.4

v0.3.0

• No notable changes except for API updates based on upstream changes to the OpenAPI specs.

Corresponding Kubernetes API server versions:

• v1.7.16
• v1.8.15
• v1.9.11
• v1.10.9
• v1.11.4
• v1.12.2

v0.2.0

• BREAKING CHANGE: Types that were previously emitted as type aliases are now emitted as newtypes. For example io.k8s.apimachinery.pkg.api.resource.Quantity was previous emitted as pub type Quantity = String; but is now emitted as pub struct Quantity(pub String);

• BREAKING CHANGE: The IntOrString enum in the crate root no longer exists. Previously each version's io.k8s.apimachinery.pkg.util.intstr.IntOrString was emitted as a type alias for the root type - pub type IntOrString = ::IntOrString;. Now they are emitted as the enum themselves pub enum IntOrString { ... }. This brings IntOrString in line with other types like RawExtension that have special replacement versions.

Corresponding Kubernetes API server versions:

• v1.7.16
• v1.8.14
• v1.9.9
• v1.10.5
• v1.11.0

v0.1.0

First release.

Corresponding Kubernetes API server versions:

• v1.7.16
• v1.8.14
• v1.9.9
• v1.10.5
• v1.11.0