groovy 脚本中的变量零

Question

我遇到了一个非常奇怪的问题

// Update the service
stage "Update Service"
def SERVICE_NAME = "currency-converter-search-srv"
def TASK_FAMILY = "currency-converter-search"
def TASK_REVISION = sh "aws --region us-east-1 ecs describe-task-definition --task-definition currency-converter-search | jq .taskDefinition.revision"
def DESIRED_COUNT = sh "aws --region us-east-1 ecs describe-services --services ${SERVICE_NAME} | jq .services[0].desiredCount"
if (DESIRED_COUNT == 0) {
  DESIRED_COUNT = 1
}
sh "aws --region us-east-1 ecs update-service --cluster default --service ${SERVICE_NAME} --task-definition ${TASK_FAMILY}:${TASK_REVISION} --desired-count ${DESIRED_COUNT}"

此脚本失败，在日志下方：

[Pipeline] stage (Update Service)
Entering stage Update Service
Proceeding
[Pipeline] sh
[workspace] Running shell script
+ jq .taskDefinition.revision
+ aws --region us-east-1 ecs describe-task-definition --task-definition currency-converter-search
13
[Pipeline] sh
[workspace] Running shell script
+ jq .services[0].desiredCount
+ aws --region us-east-1 ecs describe-services --services currency-converter-search-srv
0
[Pipeline] sh
[workspace] Running shell script
+ aws --region us-east-1 ecs update-service --cluster default --service currency-converter-search-srv --task-definition currency-converter-search:0 --desired-count 1

An error occurred (InvalidParameterException) when calling the UpdateService operation: revision must be between 1 and 2147483647
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: script returned exit code 255
Finished: FAILURE

原因是因为TASK_REVISION变量是0但根据它的处理方式不是零而是13。你知道为什么会出现这种奇怪的行为吗？

Answer 1

您不能将 sh 的结果分配给变量。

sh 没有 return 任何有意义的东西...我认为有一个 issue for this，但还没有修复

解决方法似乎是将结果重定向到一个文件，然后读取该文件

groovy 脚本中的变量零

Variable zero in groovy script

groovy

jenkins

jenkins-pipeline