使用堡垒机时Ansible的become提权配置未生效问题咨询

我在通过堡垒机连接目标服务器时，配置了以下提权参数：

become: true
become_user: root

但该配置未生效，始终以普通用户terraform登录，无法自动提权。

堡垒机连接通过环境变量配置：

"ANSIBLE_SSH_COMMON_ARGS": "-o ProxyCommand='ssh -p 22 -W %h:%p -q user@ip_obfuscated -i /home/semaphore/.ssh/jump.priv'"

执行debug时的完整连接命令如下，连接本身正常：

<ip_obfuscated> SSH: EXEC ssh -vvv -C -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o 'IdentityFile="/tmp/semaphore/access_key_136706914"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="terraform"' -o ConnectTimeout=10 -o 'ProxyCommand=ssh -p 22 -W %h:%p -q user@ip_obfuscated -i /home/semaphore/.ssh/jump.priv' -o 'ControlPath="/tmp/semaphore/.ansible/cp/1713c02767"' ip_obfuscated '/bin/sh -c '"'"'( umask 77 && mkdir -p "` echo /home/terraform/.ansible/tmp `"&& mkdir "` echo /home/terraform/.ansible/tmp/ansible-tmp-1668542130.3374832-2167-135826106011908 `" && echo ansible-tmp-1668542130.3374832-2167-135826106011908="` echo /home/terraform/.ansible/tmp/ansible-tmp-1668542130.3374832-2167-135826106011908 `" ) && sleep 0'"'"''

测试用Playbook内容：

---
- name: Remove user from Linux server
  hosts: all
  become: true
  tasks:

    # 检查当前用户
    - name: Determine current user
      shell: whoami
      register: current_user
    - name: Print current user
      debug:
        msg: "Current user is {{ current_user.stdout }}"

    # 检查sudo后的用户
    - name: Determine current user after sudo
      shell: sudo whoami
      register: current_user2
    - name: Print current user after sudo
      debug:
        msg: "Current user is {{ current_user2.stdout }}"

执行结果：

9:12:34 PM
9:12:34 PM
TASK [Print current user] ******************************************************
9:12:34 PM
ok: [ip_obfuscated] => {
9:12:34 PM
"msg": "Current user is terraform"
9:12:34 PM
}
9:12:38 PM
9:12:38 PM
TASK [Determine current user after sudo] ***************************************
9:12:38 PM
changed: [ip_obfuscated]
9:12:38 PM
9:12:38 PM
TASK [Print current user after sudo] *******************************************
9:12:38 PM
ok: [ip_obfuscated] => {
9:12:38 PM
"msg": "Current user is root"
9:12:38 PM
}
9:12:38 PM

我使用最新版Ansible，尝试过全局配置、任务级配置、inventory配置等多种become组合，仍无法让Ansible自动切换到root权限，请问问题原因是什么？

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