Ansible 2.4.2.0 on CentOS 7--ping module isn't working

wirestyle22

I have three test VM's setup for Ansible. All are CentOS 7 minimal VM's. Ansible is clientless, connects via ssh or winrm depending on the OS.

controller (IP: 192.168.1.207)
ansible-target1 (IP: 192.168.1.208)
ansible-target2 (IP: 192.168.1.209)

I installed nano on each VM.

#Edited the hosts file of each VM

controller
nano /etc/hosts
127.0.0.1 localhost controller
::1 localhost controller
192.168.1.208 ansible-target1
192.168.1.209 ansible-target2
reboot
ansible-target1
nano /etc/hosts
127.0.0.1 localhost ansible-target1
::1 localhost ansible-target1
reboot
ansible-target2
nano /etc/hosts
127.0.0.1 localhost ansible-target2
::1 localhost ansible-target2
reboot

#Install ansible on the controller
yum -y install ansible

#check that is it running
ansible --version

ansible 2.4.2.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Jul 13 2018, 13:06:57) [GCC 4.8.5 20150623 (Red Hat 4.8.5-28)]

#SSH into each target machine

ssh 192.168.1.208 or hostname
ssh 192.168.1.209 or hostname

This succeeded.

I need to setup my inventory file on the controller.
cat > inventory
ansible-target1 ansible_host=192.168.1.208 ansible_ssh_pass=sshpass

#try to ping through Ansible
ansible ansible-target1 ansible_host=192.168.1.208 -m ping -i inventory

This should succeed, but it doesn't. Instead it says:

[WARNING]: Unable to parse /etc/ansible/inventory as an inventory source

 [WARNING]: No inventory was parsed, only implicit localhost is available

 [WARNING]: Could not match supplied host pattern, ignoring: all

 [WARNING]: provided hosts list is empty, only localhost is available

 [WARNING]: Could not match supplied host pattern, ignoring: ansible-target1

 [WARNING]: No hosts matched, nothing to do

Treating it like its in the wrong location but its not. ls -l shows it in /etc/ansible/

black3dynamite

In /etc/ansible/production

[library]
SL-LIBRARY # station 2

This is what I do for pinging Windows clients
ansible SL-LIBRARY -i production -m win_ping

wirestyle22

@black3dynamite said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

In /etc/ansible/production
[library]
SL-LIBRARY # station 2
This is what I do for pinging Windows clients
ansible SL-LIBRARY -i production -m win_ping

I am pinging linux hosts.

linux is ssh and windows is winrm

black3dynamite

You either have to change to the directory where your inventory file is or use this command instead.

ansible <hostname> -i /etc/ansible/inventory -m ping

wirestyle22

@black3dynamite That looks so weird to me

shouldn't the host be ansible_host=hostname ? Did they change that?

black3dynamite

@wirestyle22 said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@black3dynamite That looks so weird to me

shouldn't the host be ansible_host=hostname ? Did they change that?

You are getting the error message about it not finding the inventory file.

Try this:

ansible ansible-target1 ansible_host=192.168.1.208 -m ping -i /etc/ansible/inventory

Obsolesce

You should give SaltStack a go as well. I think it's quite a bit easier to use.

matteo nunziati

@wirestyle22 said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@black3dynamite That looks so weird to me

shouldn't the host be ansible_host=hostname ? Did they change that?

Please post your inventory well formatted as code. It should contain a list of targets and should be passed to ansible with the -i flag. Also check the docs: https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html

stacksofplates

Dont' pass ansible_host= in the command line. That's defined in your inventory file. You also don't need to add that in your inventory file at all since you've defined it in your /etc/hosts file. I never add the password in the inventory. If I don't have a key on the other end I just pass -k in the command. So you would do this:

ansible -i inventory ansible-target1 -m ping -k

Also make sure every host is on a separate line in your inventory. I noticed you only did > instead of >>. You could have only put one host in, but figured I'd mention it just in case.

stacksofplates

Also 2.4.2 is kind of old. Some things are being deprecated soon, so you will want to either install from EPEL or use pip to pull in a newer version.

scottalanmiller

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Also 2.4.2 is kind of old. Some things are being deprecated soon, so you will want to either install from EPEL or use pip to pull in a newer version.

Another "CentOS problem" that "doesn't exist"

stacksofplates

@scottalanmiller said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Also 2.4.2 is kind of old. Some things are being deprecated soon, so you will want to either install from EPEL or use pip to pull in a newer version.

Another "CentOS problem" that "doesn't exist"

Well it's weird. Idk if CentOS hasn't caught up with RHEL yet or what's going on. Ansible is at 2.7 in RHEL. I have no idea why it's lagging so far behind in CentOS.

scottalanmiller

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@scottalanmiller said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Also 2.4.2 is kind of old. Some things are being deprecated soon, so you will want to either install from EPEL or use pip to pull in a newer version.

Another "CentOS problem" that "doesn't exist"

Well it's weird. Idk if CentOS hasn't caught up with RHEL yet. Ansible is at 2.7 in RHEL. I have no idea why it's lagging so far behind in CentOS.

oh, weird.

stacksofplates

@scottalanmiller said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@scottalanmiller said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Also 2.4.2 is kind of old. Some things are being deprecated soon, so you will want to either install from EPEL or use pip to pull in a newer version.

Another "CentOS problem" that "doesn't exist"

Well it's weird. Idk if CentOS hasn't caught up with RHEL yet. Ansible is at 2.7 in RHEL. I have no idea why it's lagging so far behind in CentOS.

oh, weird.

But even Fedora lags behind a little. It's getting better but I've seen it as far as 2 releases behind before.

wirestyle22

@matteo-nunziati said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@wirestyle22 said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@black3dynamite That looks so weird to me

shouldn't the host be ansible_host=hostname ? Did they change that?

Please post your inventory well formatted as code. It should contain a list of targets and should be passed to ansible with the -i flag. Also check the docs: https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html

This is a basic ping check with a basic inventory file. Originally it was this but I have removed the ssh password portion.

ansible-target1 ansible_host=192.168.1.208 ansible_ssh_pass=password
ansible-target2 ansible_host=192.168.1.209 ansible_ssh_pass=password

wirestyle22

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Dont' pass ansible_host= in the command line. That's defined in your inventory file. You also don't need to add that in your inventory file at all since you've defined it in your /etc/hosts file. I never add the password in the inventory. If I don't have a key on the other end I just pass -k in the command. So you would do this:
ansible -i inventory ansible-target1 -m ping -k
Also make sure every host is on a separate line in your inventory. I noticed you only did > instead of >>. You could have only put one host in, but figured I'd mention it just in case.

God you're handsome.

Time to screw around with YAML.

Obsolesce

Or in Salt:

salt pcname test.ping

stacksofplates

@Obsolesce said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Or in Salt:

salt pcname test.ping

It's much simpler if you have your ansible.cfg and keys set up. Then it's just ansible server -m ping.

This is like trying to use Salt without having certs set up (or SSH keys in the case of salt-ssh)

Obsolesce

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@Obsolesce said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Or in Salt:

salt pcname test.ping

It's much simpler if you have your ansible.cfg and keys set up. Then it's just ansible server -m ping.

This is like trying to use Salt without having certs set up (or SSH keys in the case of salt-ssh)

If you want to use ssh as a transport, but not needed or why you'd choose Salt. If that's the case then I'd rather want to use Ansible.

stacksofplates

@Obsolesce said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@stacksofplates said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

@Obsolesce said in Ansible 2.4.2.0 on CentOS 7--ping module isn't working:

Or in Salt:

salt pcname test.ping

It's much simpler if you have your ansible.cfg and keys set up. Then it's just ansible server -m ping.

This is like trying to use Salt without having certs set up (or SSH keys in the case of salt-ssh)

If you want to use ssh as a transport, but not needed or why you'd choose Salt. If that's the case then I'd rather want to use Ansible.

I want saying you should. Just once things are set up properly they are both (Ansible and Salt) very similar in ease of use.