Run a list of tasks repeatedly until the expected condition is met.
Use this task if your workflow requires blocking calls polling for a job to finish or for some external API to return a specific HTTP response.
You can access the outputs of the nested tasks in the condition property. The condition is evaluated after all nested task runs finish.
type: "io.kestra.plugin.core.flow.LoopUntil"Run a task until it returns a specific value. Note how you don't need to take care of incrementing the iteration count. The task will loop and keep track of the iteration outputs behind the scenes — you only need to specify the exit condition for the loop.
id: loop_until
namespace: company.team
tasks:
- id: loop
type: io.kestra.plugin.core.flow.LoopUntil
condition: "{{ outputs.return.value == '4' }}"
tasks:
- id: return
type: io.kestra.plugin.core.debug.Return
format: "{{ outputs.loop.iterationCount }}"
The condition expression that should evaluate to true or false.
Boolean coercion allows 0, -0, null and '' to evaluate to false; all other values will evaluate to true.
{
"interval": "PT1M"
}Check the frequency configuration.
falseIf set to true, the task run will end in a failed state once the maxIterations or maxDuration are reached.
PT1MdurationInterval between each iteration.
durationMaximum duration of the task.
If not set, defines an unlimited maximum duration of iterations.
Maximum count of iterations.
If not set, defines an unlimited number of iterations.