Delegate_to is throwing error "Failed to connect to the host via ssh"

[Gopi Krishna]

Hi,

My hosts file:

[ebs]

xx.xx.xx.xx

[source]

xx.xx.xx.xx

playbook:

---

- hosts: source

  tasks:

        - name: "copy file from 147 to 149 from 141"

          synchronize: 

                src:  /root/gopi

                dest: /root/gopi

          delegate_to: ebs

when im running this playbook , i am getting the below error 

TASK [copy file from 147 to 149 from 141] ********************************************************************************************

fatal: [localhost]: UNREACHABLE! => {"changed": false, "msg": "Failed to connect to the host via ssh: ssh: Could not resolve hostname ebs: Name or service not known\r\n", "unreachable": true}

could somebody tell me whats wrong with the code.

[Martyn Kempster]

Hello,

If you set your hosts to 'source' the playbook will only be able to be run on hosts listed under the [source] group, therefore you cant delegate to a host not in the group you're telling it to look at

[Martyn Kempster]

Further Example:

Hosts file:

[group1]

server1

server2

[group2]

server3

server4

Playbook:

---

- hosts: group2

  tasks:

        - name: "copy file from 147 to 149 from 141"

          synchronize: 

                src:  /root/gopi

                dest: /root/gopi

          delegate_to: ____       <----- delegate to one of the hosts listed under group2

On Thursday, January 4, 2018 at 7:42:39 AM UTC, Gopi Krishna wrote:

[Gopi Krishna]

But, in my case what can be the value for the delegate_to 

like:

 delegate_to: xx.xx.xx.xx # ip address ?? then it will became static .

is there any option to provide like

 delegate_to: group2[1] ??

[Gopi Krishna]

let us say host file look like:

[source]

xx.xx.xx.xx

xx.xx.xx.xx

i tried the other way like:

hosts: source[0]

   --- 

   --- code --

   ---

   delegate_to: source[1]  not working 

tried like this:

hosts: source[0]

   --- 

   --- code --

   ---

   delegate_to: "{{ groups['source'][1] }}"  not working 

how delegate it to the server 2 dynamically

On Thursday, January 4, 2018 at 1:12:39 PM UTC+5:30, Gopi Krishna wrote:

[Gopi Krishna]

by the way i tried like this:

  - hosts: oraclesource[0]

  tasks:

       - name: "copy file from 147 to 149 from 141"

         synchronize:

               src:  /root/gopi

               dest: /root/gopi

         delegate_to: "{{ item }}"

         with_items:

              - "{{ groups['oraclesource'][1] }}"

script is running but it stuck's at:

PLAY [oraclesource[0]] ***************************************************************************************************************

TASK [Gathering Facts] ***************************************************************************************************************

ok: [10.210.8.149]

TASK [copy file from 147 to 149 from 141] ********************************************************************************************

this is where the program is being idle 

On Thursday, January 4, 2018 at 1:12:39 PM UTC+5:30, Gopi Krishna wrote:

[Martyn Kempster]

I'm not sure totally how running an inventory dynamically with a [1] etc. works.

Have you tried running that last part with a -vvvv option? It looks like its now got to the point where it knows about the host but is hanging copying the file. So your inventory should be okay if its got past there

[Gopi Krishna]

getting this..

<10.210.8.150> ESTABLISH SSH CONNECTION FOR USER: root

<10.210.8.150> SSH: EXEC sshpass -d11 ssh -C -o ControlMaster=auto -o ControlPersist=60s -o User=root -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o ControlPath=/root/.ansible/cp/a26ba33a59 10.210.8.150 '/bin/sh -c '"'"'chmod u+x /root/.ansible/tmp/ansible-tmp-1515147067.67-174395529194101/ /root/.ansible/tmp/ansible-tmp-1515147067.67-174395529194101/synchronize.py && sleep 0'"'"''

<10.210.8.150> (0, '', '')

<10.210.8.150> ESTABLISH SSH CONNECTION FOR USER: root

<10.210.8.150> SSH: EXEC sshpass -d11 ssh -C -o ControlMaster=auto -o ControlPersist=60s -o User=root -o ConnectTimeout=10 -o StrictHostKeyChecking=no -o ControlPath=/root/.ansible/cp/a26ba33a59 -tt 10.210.8.150 '/bin/sh -c '"'"'/usr/bin/python /root/.ansible/tmp/ansible-tmp-1515147067.67-174395529194101/synchronize.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1515147067.67-174395529194101/" > /dev/null 2>&1 && sleep 0'"'"''