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use std::fmt::Display;
use std::convert::Into;
use std::marker::PhantomData;
use tracing::trace;
use tracing::debug;
use serde::de::DeserializeOwned;
use serde::Serialize;
use k8_metadata_client::{MetadataClient, SharedClient};
use crate::k8_types::{InputK8Obj, K8Obj, Spec as K8Spec, UpdateK8ObjStatus};
use crate::core::{Spec, MetadataItem};
use crate::store::k8::{K8ExtendedSpec, K8MetaItem};
use crate::store::*;
pub struct K8WSUpdateService<C, S> {
client: SharedClient<C>,
data: PhantomData<S>,
}
impl<C, S> K8WSUpdateService<C, S>
where
C: MetadataClient,
S: K8ExtendedSpec + Into<<S as K8ExtendedSpec>::K8Spec>,
<S as Spec>::Owner: K8ExtendedSpec,
S::Status: PartialEq + Display + Into<<<S as K8ExtendedSpec>::K8Spec as K8Spec>::Status>,
S::IndexKey: Display,
<S as K8ExtendedSpec>::K8Spec: DeserializeOwned + Serialize + Send + Sync,
{
pub fn new(client: SharedClient<C>) -> Self {
Self {
client,
data: PhantomData,
}
}
pub async fn apply(
&self,
value: MetadataStoreObject<S, K8MetaItem>,
) -> Result<(), C::MetadataClientError> {
debug!("K8 Applying {}:{}", S::LABEL, value.key());
trace!("adding KV {:#?} to k8 kv", value);
let (key, spec, _status, ctx) = value.parts();
let k8_spec: S::K8Spec = spec.into();
let mut input_metadata = if let Some(parent_metadata) = ctx.owner() {
debug!("owner exists");
let item_name = key.to_string();
let mut input_metadata = parent_metadata
.make_child_input_metadata::<<<S as Spec>::Owner as K8ExtendedSpec>::K8Spec>(
item_name,
);
if let Some(finalizer) = S::FINALIZER {
input_metadata.finalizers = vec![finalizer.to_owned()];
for o_ref in &mut input_metadata.owner_references {
o_ref.block_owner_deletion = true;
}
}
input_metadata
} else {
ctx.item().inner().clone().into()
};
input_metadata.labels = ctx.item().get_labels();
input_metadata.annotations = ctx.item().annotations.clone();
trace!("converted metadata: {:#?}", input_metadata);
let new_k8 = InputK8Obj::new(k8_spec, input_metadata);
debug!("input {:#?}", new_k8);
self.client.apply(new_k8).await.map(|_| ())
}
pub async fn update_status(
&self,
metadata: K8MetaItem,
status: S::Status,
) -> Result<K8Obj<S::K8Spec>, C::MetadataClientError> {
debug!(
"K8 Update Status: {} key: {} value: {}",
S::LABEL,
metadata.name,
status
);
trace!("status update: {:#?}", status);
let k8_status: <<S as K8ExtendedSpec>::K8Spec as K8Spec>::Status = status.into();
let k8_input: UpdateK8ObjStatus<S::K8Spec> = UpdateK8ObjStatus {
api_version: S::K8Spec::api_version(),
kind: S::K8Spec::kind(),
metadata: metadata.inner().clone().into(),
status: k8_status,
..Default::default()
};
self.client.update_status(&k8_input).await
}
pub async fn update_spec(
&self,
metadata: K8MetaItem,
spec: S,
) -> Result<(), C::MetadataClientError> {
debug!("K8 Update Spec: {} key: {}", S::LABEL, metadata.name);
trace!("K8 Update Spec: {:#?}", spec);
let k8_spec: <S as K8ExtendedSpec>::K8Spec = spec.into();
trace!("updating spec: {:#?}", k8_spec);
let k8_input: InputK8Obj<S::K8Spec> = InputK8Obj {
api_version: S::K8Spec::api_version(),
kind: S::K8Spec::kind(),
metadata: metadata.inner().clone().into(),
spec: k8_spec,
..Default::default()
};
self.client.apply(k8_input).await.map(|_| ())
}
pub async fn delete(&self, meta: K8MetaItem) -> Result<(), C::MetadataClientError> {
use k8_metadata_client::k8_types::options::{DeleteOptions, PropogationPolicy};
let options = if S::DELETE_WAIT_DEPENDENTS {
Some(DeleteOptions {
propagation_policy: Some(PropogationPolicy::Foreground),
..Default::default()
})
} else {
None
};
debug!("deleting {:#?} with: {:#?}", meta, options);
self.client
.delete_item_with_option::<S::K8Spec, _>(meta.inner(), options)
.await
.map(|_| ())
}
pub async fn final_delete(&self, meta: K8MetaItem) -> Result<(), C::MetadataClientError> {
use once_cell::sync::Lazy;
use serde_json::Value;
use k8_metadata_client::PatchMergeType::JsonMerge;
static FINALIZER: Lazy<Value> = Lazy::new(|| {
serde_json::from_str(
r#"
{
"metadata": {
"finalizers":null
}
}
"#,
)
.expect("finalizer")
});
debug!("final deleting {:#?}", meta);
self.client
.patch::<S::K8Spec, _>(&meta.inner().as_input(), &FINALIZER, JsonMerge)
.await
.map(|_| ())
}
}
