ansible wait_for ssh for a specific user

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1

Hi, forgive me for my bad english.

I’m trying to find a way to test an ssh connection to a specific user on a new server.

When I create a new virtual server, an ansible playbook is executed to finish the soft deployments:
1 Check if ssh is available (port 22)
2 Chekc if the ansible user is available
3 Get the uname
4 Install packages

I have no problem for 1, 3 and 4:

  • name: “waiting for host to start”
    local_action: wait_for
    host={{ inventory_hostname }}
    state=started
    port=22
    delay=10
    become: false

  • name: “waiting to connect to xxxx user”
    local_action: command ssh -i ~/.ssh/mykey -o ConnectTimeout=5 -o ConnectionAttempts=1 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o GSSAPIAuthentication=no -o GSSAPIKeyExchange=no -l xxxxx {{inventory_hostname}} exit
    register: result
    until: result.rc == 0
    retries: 20
    delay: 5

  • name: “waiting the uname”
    command: uname -a
    register: result

  • name: “uname”
    debug:
    var: result.stdout

but the second step is never OK. When the playbook execute this step, ansible execute the command, but never exit from this command. I have to kill the process of this command to force ansible to re-run a new test.
Finally when the server and user is available, after a new kill, ansible can continue with step 3.

How can I resolve this problem. I can add a sleep before the step 2, but it is not a good solution. Thanks in advance for your helps.

2

Hi,

Did you already try to use “shell” instead “command”? When you try to execute that command from another machine it works?

thanks,
Guilherme.

3

yess I've already tried shell butsame issue. If I try to connect
manually, it works. The problem is that ansible doesn't release the
first connection attemps while the server isn't ready. I don't know
why ...

4

Reza,

Could you run with -vvv at the end?

Thanks,
Guilherme.

5

I can’t reproduce the same run. Actually, ansible ask me to provide a password to connect. I don’t know why.
Ansible has to wait until he can connect using the command I provide no ?

2016-12-12 19:23:31,939 p=12608 u=deploy | Using ansible.cfg as config file
2016-12-12 19:23:32,048 p=12608 u=deploy | PLAYBOOK: main.yml *************************************************************
2016-12-12 19:23:32,048 p=12608 u=deploy | 1 plays in main.yml
2016-12-12 19:23:32,051 p=12608 u=deploy | PLAY [all] *********************************************************************
2016-12-12 19:23:32,095 p=12608 u=deploy | TASK [wait-for-available : waiting for host to start] **************************
2016-12-12 19:23:32,095 p=12608 u=deploy | task path: /ansible/roles/wait-for-available/tasks/main.yml:1
2016-12-12 19:23:32,265 p=12608 u=deploy | Using module file /ansible/modules/utilities/logic/wait_for.py
2016-12-12 19:23:57,413 p=12608 u=deploy | ok: [192.168.0.57 → localhost] => {
“changed”: false,
“elapsed”: 25,
“invocation”: {
“module_args”: {
“connect_timeout”: 5,
“delay”: 10,
“exclude_hosts”: null,
“host”: “192.168.0.57”,
“path”: null,
“port”: 22,
“search_regex”: null,
“sleep”: 1,
“state”: “started”,
“timeout”: 300
},
“module_name”: “wait_for”
},
“path”: null,
“port”: 22,
“search_regex”: null,
“state”: “started”
}
2016-12-12 19:23:57,415 p=12608 u=deploy | TASK [wait-for-available : waiting to connect to ansible user] *************
2016-12-12 19:23:57,415 p=12608 u=deploy | task path: /ansible/roles/wait-for-available/tasks/main.yml:10
2016-12-12 19:23:57,567 p=12608 u=deploy | Using module file /ansible/modules/commands/command.py
2016-12-12 19:25:03,496 p=12608 u=deploy | [ERROR]: User interrupted execution

  • name: “waiting for host to start”
    local_action: wait_for
    host={{ inventory_hostname }}
    state=started
    port=22
    delay=10
    become: false
    when: ostype == ‘Linux’

  • name: “waiting to connect to ansible user”
    local_action: command ssh -vvv -i ~/.ssh/deploy -o ConnectTimeout=5 -o ConnectionAttempts=1 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o GSSAPIAuthentication=no -o GSSAPIKeyExchange=no -l ansible {{inventory_hostname}} exit
    register: result
    until: result.rc == 0
    retries: 20
    delay: 5
    when: ostype == ‘Linux’

  • name: “waiting the uname”
    command: uname -a
    register: result
    when: ostype == ‘Linux’

  • name: “uname”
    debug:
    var: result.stdout
    when: ostype == ‘Linux’

6

Reza,

You have to put the parameter at the end of command, like: ansible-playbook -i inventory… -vvv

Guilherme.

7

i have add the vvv to ansible and to ssh command. The log provided comes from this run. I don’t have more logs. I will try tomorrow to make a new run just with the wait task.

reza