The task placement strategy for a task or service. For more information, see Task Placement Strategies in the Amazon EC2 Container Service Developer Guide.
The field to apply the placement strategy against. For the
spreadplacement strategy, valid values are
host, which has the same effect), or any platform or custom attribute that is applied to a container instance, such as
attribute:ecs.availability-zone. For the
binpackplacement strategy, valid values are
memory. For the
randomplacement strategy, this field is not used.
The type of placement strategy. The
randomplacement strategy randomly places tasks on available candidates. The
spreadplacement strategy spreads placement across available candidates evenly based on the
binpackstrategy places tasks on available candidates that have the least available amount of the resource that is specified with the
fieldparameter. For example, if you binpack on memory, a task is placed on the instance with the least amount of remaining memory (but still enough to run the task).
random | spread | binpack
For more information about using this API in one of the language-specific AWS SDKs, see the following: