GitLab Pipeline多行命令执行报错排查及修正请求

错误原因 #

你用的YAML折叠标量>会把多行脚本的换行处理成空格，导致shell解析while循环和case语句时语法错乱，触发unexpected token 'done'错误。

修正后的YAML配置 #

把原来的>换成|-（保留所有换行的块标量），确保shell脚本的结构完整保留：

script:
    - . ./build-metadata
    - sh /create-aws-profile.sh
    - |-
      REGION="us-east-1"

      while :
      do
          ami_state=$(aws ec2 describe-images --region "$REGION" --image-ids "$US_EAST_AMI" | jq -r '.Images[].State')

          case "$ami_state" in
              available)
                  echo "Now the AMI is available in the $REGION region"
                  break
                  ;;
              failed)
                  echo "AMI is failed in $REGION region"
                  break
                  ;;
              pending)
                  echo "AMI is still pending in $REGION region"
                  ;;
              *)
                  echo "AMI is in the unhandled state: $ami_state"
                  break
                  ;;
          esac
          sleep 10
      done

    - aws ec2 modify-image-attribute --region us-east-1 --image-id "$US_EAST_AMI_ID" --attribute launchPermission --operation-type add --organizational-unit-arns "$OU"

额外优化点 #

1. 给jq表达式加上单引号：.Images[].State改成'.Images[].State'，避免特殊字符解析异常；
2. 给所有变量引用（如$ami_state、$US_EAST_AMI_ID）加上双引号，防止变量值含空格时出现参数拆分错误；
3. 统一case分支里;;的缩进，保持语法规范。

更稳妥的替代方案 #

把循环逻辑写成单独的脚本文件（比如wait-for-ami.sh），再在CI脚本中调用，彻底规避YAML解析带来的问题：

script:
    - . ./build-metadata
    - sh /create-aws-profile.sh
    - chmod +x ./wait-for-ami.sh
    - ./wait-for-ami.sh
    - aws ec2 modify-image-attribute --region us-east-1 --image-id "$US_EAST_AMI_ID" --attribute launchPermission --operation-type add --organizational-unit-arns "$OU"

wait-for-ami.sh内容：

#!/bin/bash
REGION="us-east-1"

while :
do
    ami_state=$(aws ec2 describe-images --region "$REGION" --image-ids "$US_EAST_AMI" | jq -r '.Images[].State')

    case "$ami_state" in
        available)
            echo "Now the AMI is available in the $REGION region"
            break
            ;;
        failed)
            echo "AMI is failed in $REGION region"
            break
            ;;
        pending)
            echo "AMI is still pending in $REGION region"
            ;;
        *)
            echo "AMI is in the unhandled state: $ami_state"
            break
            ;;
    esac
    sleep 10
done

内容的提问来源于stack exchange，提问作者Ravichandran