Introduction
For over a month I've been running the following command:
ansible-playbook -vvvvi host_test rhel-tests.yml
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.
Even though I can establish a normal SSH connection from bash to 10.2.16.2 just fine from the host I'm running.
Details
The contents of host_test are as follows:
[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]
Here's my 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
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_sshconnection type, which also fails. - I can run
ansible -i hosts_test -m ping 10.2.16.2and get a pong back - This question seems pretty close to my issue, but there aren't any lines in
rhel-tests.ymlthat reboot or shutdown.
Question
What's causing my playbook to fail and how can I fix it?