Ansible停止通过SSH连接到主机

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问题描述

一个月以来，我一直在运行以下命令:

For over a month I've been running the following command:

ansible-playbook -vvvvi host_test rhel-tests.yml

通过SSH连接并成功在主机上运行测试，没有任何问题.但是截至最近几天，我在运行时收到以下消息:

Which connected via SSH and ran tests on a host successfully without any problems.But as of the last couple days, I've received the following when running:

fatal: [10.2.16.2]: UNREACHABLE! => {
    "changed": false,
    "unreachable": true
}

MSG:

Failed to connect to the host via ssh: OpenSSH_7.6p1, LibreSSL 2.6.2
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 48: Applying options for *
debug1: auto-mux: Trying existing master
debug2: fd 3 setting O_NONBLOCK
debug2: mux_client_hello_exchange: master version 4
debug3: mux_client_forwards: request forwardings: 0 local, 0 remote
debug3: mux_client_request_session: entering
debug3: mux_client_request_alive: entering
debug3: mux_client_request_alive: done pid = 35742
debug3: mux_client_request_session: session request sent
debug1: mux_client_request_session: master session id: 2
debug3: mux_client_read_packet: read header failed: Broken pipe
debug2: Control master terminated unexpectedly
Shared connection to 10.2.16.2 closed.

即使我可以从运行的主机建立从bash到10.2.16.2的普通SSH连接，也可以.

Even though I can establish a normal SSH connection from bash to 10.2.16.2 just fine from the host I'm running.

host_test的内容如下:

[rhel]
10.2.16.2 node_type=xxx

[rhel:vars]
ansible_become=yes
ansible_become_method=su
ansible_become_user=root
ansible_connection=ssh
ansible_user=yyy
node_name=""


[cisco]

[cisco:vars]
node_name=""

[curtiss-wright]

[zzz]

[other]

[nmap:children]
rhel
cisco
curtiss-wright
other
zzz

[password-test]

这是我的ansible.cfg:

[defaults]
ask_vault_pass = True
filter_plugins = filter_plugins
host_key_checking = False
retry_files_enabled = False
inventory = hosts
stdout_callback = debug

[paramiko_connection]
record_host_keys=False

[ssh_connection]
ssh_args = -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null
scp_if_ssh = True

这是失败的任务的完整-vvvv输出:

Here's the full -vvvv output of the task which fails:

<10.2.16.2> ESTABLISH SSH CONNECTION FOR USER: yyy
<10.2.16.2> SSH: EXEC sshpass -d51 ssh -vvv -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o User=yyy -o ConnectTimeout=10 -o ControlPath=/Users/presslertj/.ansible/cp/4c003d67e6 10.2.16.2 '/bin/sh -c '"'"'echo ~yyy && sleep 0'"'"''
<10.2.16.2> (0, '/home/yyy\n', 'OpenSSH_7.6p1, LibreSSL 2.6.2\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 48: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug2: fd 3 setting O_NONBLOCK\r\ndebug2: mux_client_hello_exchange: master version 4\r\ndebug3: mux_client_forwards: request forwardings: 0 local, 0 remote\r\ndebug3: mux_client_request_session: entering\r\ndebug3: mux_client_request_alive: entering\r\ndebug3: mux_client_request_alive: done pid = 38421\r\ndebug3: mux_client_request_session: session request sent\r\ndebug1: mux_client_request_session: master session id: 2\r\ndebug3: mux_client_read_packet: read header failed: Broken pipe\r\ndebug2: Received exit status from master 0\r\n')
<10.2.16.2> ESTABLISH SSH CONNECTION FOR USER: yyy
<10.2.16.2> SSH: EXEC sshpass -d51 ssh -vvv -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o User=yyy -o ConnectTimeout=10 -o ControlPath=/Users/presslertj/.ansible/cp/4c003d67e6 10.2.16.2 '/bin/sh -c '"'"'( umask 77 && mkdir -p "` echo /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054 `" && echo ansible-tmp-1533309683.05-194983968798054="` echo /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054 `" ) && sleep 0'"'"''
<10.2.16.2> (0, 'ansible-tmp-1533309683.05-194983968798054=/home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054\n', 'OpenSSH_7.6p1, LibreSSL 2.6.2\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 48: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug2: fd 3 setting O_NONBLOCK\r\ndebug2: mux_client_hello_exchange: master version 4\r\ndebug3: mux_client_forwards: request forwardings: 0 local, 0 remote\r\ndebug3: mux_client_request_session: entering\r\ndebug3: mux_client_request_alive: entering\r\ndebug3: mux_client_request_alive: done pid = 38421\r\ndebug3: mux_client_request_session: session request sent\r\ndebug1: mux_client_request_session: master session id: 2\r\ndebug3: mux_client_read_packet: read header failed: Broken pipe\r\ndebug2: Received exit status from master 0\r\n')
Using module file /usr/local/Cellar/ansible/2.6.2/libexec/lib/python2.7/site-packages/ansible/modules/commands/command.py
<10.2.16.2> PUT /Users/presslertj/.ansible/tmp/ansible-local-38409ihnO5i/tmpWo6ZH_ TO /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/command.py
<10.2.16.2> SSH: EXEC sshpass -d51 scp -vvv -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o User=yyy -o ConnectTimeout=10 -o ControlPath=/Users/presslertj/.ansible/cp/4c003d67e6 /Users/presslertj/.ansible/tmp/ansible-local-38409ihnO5i/tmpWo6ZH_ '[10.2.16.2]:/home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/command.py'
<10.2.16.2> (0, '', 'Executing: program /usr/bin/ssh host 10.2.16.2, user (unspecified), command scp -v -t /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/command.py\nOpenSSH_7.6p1, LibreSSL 2.6.2\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 48: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug2: fd 3 setting O_NONBLOCK\r\ndebug2: mux_client_hello_exchange: master version 4\r\ndebug3: mux_client_forwards: request forwardings: 0 local, 0 remote\r\ndebug3: mux_client_request_session: entering\r\ndebug3: mux_client_request_alive: entering\r\ndebug3: mux_client_request_alive: done pid = 38421\r\ndebug3: mux_client_request_session: session request sent\r\ndebug1: mux_client_request_session: master session id: 2\r\nSending file modes: C0600 69597 tmpWo6ZH_\nSink: C0600 69597 tmpWo6ZH_\ndebug3: mux_client_read_packet: read header failed: Broken pipe\r\ndebug2: Received exit status from master 0\r\n')
<10.2.16.2> ESTABLISH SSH CONNECTION FOR USER: yyy
<10.2.16.2> SSH: EXEC sshpass -d51 ssh -vvv -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o User=yyy -o ConnectTimeout=10 -o ControlPath=/Users/presslertj/.ansible/cp/4c003d67e6 10.2.16.2 '/bin/sh -c '"'"'chmod u+x /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/ /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/command.py && sleep 0'"'"''
<10.2.16.2> (0, '', 'OpenSSH_7.6p1, LibreSSL 2.6.2\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 48: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug2: fd 3 setting O_NONBLOCK\r\ndebug2: mux_client_hello_exchange: master version 4\r\ndebug3: mux_client_forwards: request forwardings: 0 local, 0 remote\r\ndebug3: mux_client_request_session: entering\r\ndebug3: mux_client_request_alive: entering\r\ndebug3: mux_client_request_alive: done pid = 38421\r\ndebug3: mux_client_request_session: session request sent\r\ndebug1: mux_client_request_session: master session id: 2\r\ndebug3: mux_client_read_packet: read header failed: Broken pipe\r\ndebug2: Received exit status from master 0\r\n')
<10.2.16.2> ESTABLISH SSH CONNECTION FOR USER: yyy
<10.2.16.2> SSH: EXEC sshpass -d51 ssh -vvv -o LogLevel=QUIET -o ControlMaster=auto -o ControlPersist=2m -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o User=yyy -o ConnectTimeout=10 -o ControlPath=/Users/presslertj/.ansible/cp/4c003d67e6 -tt 10.2.16.2 '/bin/sh -c '"'"'su  root -c '"'"'"'"'"'"'"'"'/bin/sh -c '"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'echo BECOME-SUCCESS-mmedeuuflgmstddchcdfxcwjjcqpzsam; /usr/bin/python /home/yyy/.ansible/tmp/ansible-tmp-1533309683.05-194983968798054/command.py'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"'"''"'"'"'"'"'"'"'"' && sleep 0'"'"''
Escalation succeeded

我的想法

配置更改在目标上不断发生，因此有可能在ssh中配置了某些内容以某种方式限制连接.
测试已添加到rhel-tests.yml中，因此现在可能触发了以前没有发生过的某种超时.我已经尝试将rhel7的版本恢复到一个月前，但是该命令仍然失败，因此我认为这不太可能是原因.
我正在使用通过brew安装的ansible 2.5.4版本.我尝试过更新到Ansible 2.6.2，但这似乎无济于事.
我尝试了其他在线建议，包括使用paramiko_ssh连接类型，但同样失败.
我可以跑ansible -i hosts_test -m ping 10.2.16.2并拿回乒乓球
这个问题似乎很接近我的问题，但是没有任何问题rhel-tests.yml中重新启动或关闭的行.

My thoughts

Configuration changes are happening constantly on the target, so it's possible something was configured in ssh to limit connections in some way.
Tests are being added to rhel-tests.yml, so it's possible some sort of timeout is now being triggered that wasn't before. I've tried reverting back the version of rhel7 to about a month back, and the command still fails, so I believe that this is not likely to be the cause.
I'm using ansible version 2.5.4 installed via brew. I've tried updating to Ansible 2.6.2, but that seems to have done nothing.
I've tried several other suggestions found online, including using the paramiko_ssh connection type, which also fails.
I can run ansible -i hosts_test -m ping 10.2.16.2 and get a pong back
This question seems pretty close to my issue, but there aren't any lines in rhel-tests.yml that reboot or shutdown.

是什么原因导致我的剧本失败以及如何解决?