Struct LabelSelector 

pub struct LabelSelector {
    pub match_labels: Labels,
    pub match_expressions: Vec<SelectorRequirement>,
}

Label selector for matching any labeled object.

Both match_labels and match_expressions are ANDed together. An empty selector matches every label set.

Example

use solti_model::{Labels, LabelSelector, SelectorRequirement};

let selector = LabelSelector {
    match_labels: {
        let mut labels = Labels::new();
        labels.insert("zone", "eu");
        labels
    },
    match_expressions: vec![SelectorRequirement::exists("gpu")],
};

let mut labels = Labels::new();
labels.insert("zone", "eu");
labels.insert("gpu", "h100");

assert!(selector.matches(&labels));

Fields

match_labels: Labels

Exact key-value matches.

match_expressions: Vec<SelectorRequirement>

Set-based requirements.

Implementations

impl LabelSelector

pub fn new() -> Self

Creates an empty selector.

An empty selector matches every label set.

Example

use solti_model::{Labels, LabelSelector};

assert!(LabelSelector::new().matches(&Labels::new()));

pub fn from_labels(labels: Labels) -> Self

Creates a selector from exact matches.

Example

use solti_model::{Labels, LabelSelector};

let mut labels = Labels::new();
labels.insert("zone", "eu");

let selector = LabelSelector::from_labels(labels);

let mut labels = Labels::new();
labels.insert("zone", "eu");
assert!(selector.matches(&labels));

pub fn from_expressions(expr: Vec<SelectorRequirement>) -> Self

Creates a selector from expressions.

Example

use solti_model::{Labels, LabelSelector, SelectorRequirement};

let selector = LabelSelector::from_expressions(vec![
    SelectorRequirement::exists("gpu"),
]);

let mut labels = Labels::new();
labels.insert("gpu", "a100");
assert!(selector.matches(&labels));

pub fn is_empty(&self) -> bool

Returns whether the selector is empty.

pub fn validate(&self) -> ModelResult<()>

Validates the selector.

Errors

Returns ModelError::Invalid when a key, value, or requirement is invalid.

pub fn matches(&self, labels: &Labels) -> bool

Returns whether labels satisfy every requirement.

match_labels and match_expressions are ANDed. NotIn matches when the key is absent.

Example

use solti_model::{Labels, LabelSelector, SelectorRequirement};

let selector = LabelSelector::from_expressions(vec![
    SelectorRequirement::r#in("gpu", vec!["a100".into(), "h100".into()]),
]);

let mut labels = Labels::new();
labels.insert("gpu", "h100");

assert!(selector.matches(&labels));

Trait Implementations

impl Clone for LabelSelector

fn clone(&self) -> LabelSelector

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LabelSelector

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LabelSelector

fn default() -> LabelSelector

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LabelSelector

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for LabelSelector

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for LabelSelector

impl FromStr for LabelSelector

fn from_str(value: &str) -> ModelResult<Self>

Parses Kubernetes label selector syntax.

Supported requirements are =, ==, !=, in, notin, key existence and !key non-existence. Top-level commas mean AND.

Errors

Returns ModelError::Invalid when the syntax or a requirement is invalid.

type Err = ModelError

The associated error which can be returned from parsing.

impl JsonSchema for LabelSelector

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for LabelSelector

fn eq(&self, other: &LabelSelector) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for LabelSelector

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for LabelSelector