流水线正被Ansible Tower所忽视

Question

我正在尝试启用流水线，但无论我尝试什么，它都不起作用。

ansible.cfg内容：

[defaults]
transport = ssh
host_key_checking = false
retry_files_enabled = false
nocows=true
remote_user=ansible
# display_skipped_hosts = false
allow_world_readable_tmpfiles = True
warning = False
roles_path = ./roles
ansible_managed = Ansible managed: {file} modified on %Y-%m-%d %H:%M:%S by {uid} on {host}
callback_whitelist = profile_tasks
[privilege_escalation]
become_method = su
become_exe = 'sx su -'
[ssh_connection]
pipelining = true
ssh_args = -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r

Ansible Tower版本：3.4.1[由Redhat提供]

使用的Ansible env版本：2.9、2.8和2.7

Ansible Tower在RHEL 6上运行，而我试图运行该剧本的虚拟机在RHEL 7上。

我没有访问Tower VM的权限来检查配置。

这是我运行剧本的日志：

TASK [pipelining : Check Date] *************************************************
task path: /var/lib/awx/projects/_32459__project/roles/pipelining/tasks/main.yml:1
Friday 06 March 2020  14:46:33 +0000 (0:00:00.210)       0:00:00.210 ********** 
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'echo ~ansible && sleep 0'"'"''
<myVM> (0, '/home/ansiblen', "Warning: Permanently added 'myVM,10.37.30.170' (RSA) to the list of known hosts.")
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'( umask 77 && mkdir -p "` echo /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658 `" && echo ansible-tmp-1583505993.07-223021018622658="` echo /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658 `" ) && sleep 0'"'"''
<myVM> (0, 'ansible-tmp-1583505993.07-223021018622658=/home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658n', '')
<VMhost> Attempting python interpreter discovery
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'echo PLATFORM; uname; echo FOUND; command -v '"'"'"'"'"'"'"'"'/usr/bin/python'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python3.7'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python3.6'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python3.5'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python2.7'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python2.6'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'/usr/libexec/platform-python'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'/usr/bin/python3'"'"'"'"'"'"'"'"'; command -v '"'"'"'"'"'"'"'"'python'"'"'"'"'"'"'"'"'; echo ENDFOUND && sleep 0'"'"''
<myVM> (0, 'PLATFORMnLinuxnFOUNDn/usr/bin/pythonn/usr/bin/python2.7n/usr/libexec/platform-pythonn/usr/bin/pythonnENDFOUNDn', '')
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'/usr/bin/python && sleep 0'"'"''
<myVM> (0, '{"osrelease_content": "NAME=\"Red Hat Enterprise Linux Server\"\nVERSION=\"7.7 (Maipo)\"\nID=\"rhel\"\nID_LIKE=\"fedora\"\nVARIANT=\"Server\"\nVARIANT_ID=\"server\"\nVERSION_ID=\"7.7\"\nPRETTY_NAME=\"Red Hat Enterprise Linux Server 7.7 (Maipo)\"\nANSI_COLOR=\"0;31\"\nCPE_NAME=\"cpe:/o:redhat:enterprise_linux:7.7:GA:server\"\nHOME_URL=\"https://www.redhat.com/\"\nBUG_REPORT_URL=\"https://bugzilla.redhat.com/\"\n\nREDHAT_BUGZILLA_PRODUCT=\"Red Hat Enterprise Linux 7\"\nREDHAT_BUGZILLA_PRODUCT_VERSION=7.7\nREDHAT_SUPPORT_PRODUCT=\"Red Hat Enterprise Linux\"\nREDHAT_SUPPORT_PRODUCT_VERSION=\"7.7\"\n", "platform_dist_result": ["redhat", "7.7", "Maipo"]}n', '')
Using module file /var/lib/awx/venv/ansible_2_8/lib/python2.7/site-packages/ansible/modules/commands/command.py
<myVM> PUT /var/lib/awx/.ansible/tmp/ansible-local-3omzq9J/tmpquCP2N TO /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/AnsiballZ_command.py
<myVM> SSH: EXEC sshpass -d10 sftp -o BatchMode=no -b - -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 '[myVM]'
<myVM> (0, 'sftp> put /var/lib/awx/.ansible/tmp/ansible-local-3omzq9J/tmpquCP2N /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/AnsiballZ_command.pynUploading /var/lib/awx/.ansible/tmp/ansible-local-3omzq9J/tmpquCP2N to /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/AnsiballZ_command.pyn', '')
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'chmod u+x /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/ /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/AnsiballZ_command.py && sleep 0'"'"''
<myVM> (0, '', '')
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 -tt myVM '/bin/sh -c '"'"'sx su -  root -c '"'"'"'"'"'"'"'"'/bin/sh -c '"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'echo BECOME-SUCCESS-iaimhvmledvpyuy ; /usr/bin/python /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/AnsiballZ_command.py'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"''"'"'"'"'"'"'"'"' && sleep 0'"'"''
Escalation succeeded
<myVM> (0, 'Last login: Fri Mar  6 15:12:26 2020 from 10.77.228.130rrnrn{"changed": true, "end": "2020-03-06 15:46:35.478978", "stdout": "Fri Mar  6 15:46:35 CET 2020", "cmd": "date", "rc": 0, "start": "2020-03-06 15:46:35.475245", "stderr": "", "delta": "0:00:00.003733", "invocation": {"module_args": {"creates": null, "executable": null, "_uses_shell": true, "strip_empty_ends": true, "_raw_params": "date", "removes": null, "argv": null, "warn": true, "chdir": null, "stdin_add_newline": true, "stdin": null}}}rn', 'Shared connection to myVM closed.rn')
<myVM> ESTABLISH SSH CONNECTION FOR USER: ansible
<myVM> SSH: EXEC sshpass -d10 ssh -C -o ControlMaster=auto -o ControlPersist=600s -o ControlPath=/tmp/ansible-ssh-%%h-%%p-%%r -o StrictHostKeyChecking=no -o 'User="ansible"' -o ConnectTimeout=10 myVM '/bin/sh -c '"'"'rm -f -r /home/ansible/.ansible/tmp/ansible-tmp-1583505993.07-223021018622658/ > /dev/null 2>&1 && sleep 0'"'"''
<myVM> (0, '', '')

我原本只希望看到一个SSH:EXEC，而没有PUT。我做错什么了吗？我确实尝试过mitogen，它有效，除了Become部分，所以我不能使用它。我希望能够启用流水线。

另一件需要提及的事情是，RHEL7虚拟机，其中的剧本将检查日期、写入文件并删除它，在/etc/sudoers:Defaults !requiretty 中有这一行

我还尝试过在每个任务中使用vars，并设置ansible_ssh_pipelining:true，但结果相同。

是否可以在Tower的更高级别禁用管道？我累了吗？我做错了吗？我快疯了。。。

Answer 1

原因是使用了"su"；作为一种become_方法。它似乎不支持流水线操作。

以下注释可以在代码中找到：

# su does not work with pipelining

https://github.com/ansible/ansible/blob/v2.10.3/lib/ansible/plugins/action/init.py

参考编号：https://github.com/ansible/ansible/issues/35698