Struct aws_sdk_ecs::types::PlacementConstraint

#[non_exhaustive]
pub struct PlacementConstraint {
    pub type: Option<PlacementConstraintType>,
    pub expression: Option<String>,
}

An object representing a constraint on task placement. For more information, see Task placement constraints in the Amazon Elastic Container Service Developer Guide.

If you're using the Fargate launch type, task placement constraints aren't supported.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

type: Option<PlacementConstraintType>

The type of constraint. Use distinctInstance to ensure that each task in a particular group is running on a different container instance. Use memberOf to restrict the selection to a group of valid candidates.

expression: Option<String>

A cluster query language expression to apply to the constraint. The expression can have a maximum length of 2000 characters. You can't specify an expression if the constraint type is distinctInstance. For more information, see Cluster query language in the Amazon Elastic Container Service Developer Guide.

Implementations

impl PlacementConstraint

pub fn type(&self) -> Option<&PlacementConstraintType>

The type of constraint. Use distinctInstance to ensure that each task in a particular group is running on a different container instance. Use memberOf to restrict the selection to a group of valid candidates.

pub fn expression(&self) -> Option<&str>

A cluster query language expression to apply to the constraint. The expression can have a maximum length of 2000 characters. You can't specify an expression if the constraint type is distinctInstance. For more information, see Cluster query language in the Amazon Elastic Container Service Developer Guide.

impl PlacementConstraint

pub fn builder() -> PlacementConstraintBuilder

Creates a new builder-style object to manufacture PlacementConstraint.

Trait Implementations

impl Clone for PlacementConstraint

fn clone(&self) -> PlacementConstraint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PlacementConstraint

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

Formats the value using the given formatter.

impl PartialEq for PlacementConstraint

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for PlacementConstraint