Opensips Notes

Ansible Part II. Install opensips,opensips-cli,opensips control panel.

You can use this Ansible roles to install full Opensips + Control Panel with one command.

For some reason roles to install Opensips from ansible galaxy not working as expected.

I have modified some roles to make it works.

This will good only for Debian 10 and Centos 7. Most popular systems. 

Roles will install Mysql server with defaults, opensips-cli, opensips 3.2 and opensips control panel with opensips DB. Access to panel is login “admin” and password “opensips”.

Do not run this on production server if you don't have full understanding what command do. It may cause your system loose some important things like ssh keys.

1. Make usr/local/bin inpath to run command from it.
   export PATH=$PATH:/usr/local/sbin
   echo “export PATH=$PATH:/usr/local/sbin” > /root/.bashrc
2. Install ansible on debian 10
   apt install git python-pip
   pip install ansible
3. Generate SSH key for control node host (it should be present in authorized_hosts file on every managed nodes)
   ssh-keygen -t rsa -b 4096
4. Get repository with modified roles
   git clone https://bitbucket.org/yooxy/ansible-opensips.git
5. Put roles into /root/.ansible repository.
   mkdir /root/.ansible
   mkdir /root/.ansible/roles
   cp -r ansible-opensips/roles /root/.ansible
6. Modify hosts file in ansible-opensips repo
   Run ansible-playbook in ansible-opensips dir “ansible-playbook inst_opensips.yml -i hosts”

Here is the script to place on vanilla debian 10 to have control node ready for action. Just do step 6 after this script done.

#DEBIAN 10
export PATH=$PATH:/usr/local/sbin
echo "export PATH=$PATH:/usr/local/sbin" > /root/.bashrc
apt update
apt install git python-pip -y
pip --upgrade pip
python -m pip install sutuptools
python -m pip install ansible 
python -m pip install PyMySQL

ssh-keygen -t rsa -b 4096
git clone https://bitbucket.org/yooxy/ansible-opensips.git
mkdir /etc/ansible
mkdir /root/.ansible
mkdir /root/.ansible/roles
cp -r ansible-opensips/roles /root/.ansible
cd ansible-opensips
ansible-playbook inst_opensips.yml -i hosts

Ansible. part 1.

Example of using Ansible for checking online calls from many of servers from command line:

Ansible check online calls from few servers through ssh:
docs: https://docs.ansible.com/ansible/latest/installation_guide/intro_configuration.html

Control node :

apt update -y
apt install ansible -y

Create /etc/ansible/hosts file

all:
   hosts:
     123.123.123.123:
     123.123.123.124:
     123.123.123.125:
     123.123.123.126:

Check connecting to hosts:

ansible all -m ping

You may see error like this:
“msg”: “Failed to connect to the host via ssh:
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!\r\n
Someone could be eavesdropping on you right now (man-in-the-middle attack)!\r\n
It is also possible that a host key has just been changed.\r\n
The fingerprint for the ECDSA key sent by the remote host is\nSHA256:sdfsdfsdfsdfsdfsdfsdfsdf.\r\n
Please contact your system administrator.\r\n
Add correct host key in /root/.ssh/known_hosts to get rid of this message.\r\n
Offending ECDSA key in /root/.ssh/known_hosts:6\r\n remove with:\r\n
ssh-keygen -f \”/root/.ssh/known_hosts\” -R \”123.123.123.123\”\r\n
ECDSA host key for 123.123.123.123 has changed and you have requested strict checking.\r\n
Host key verification failed.”,
“unreachable”: true

to fix it you may to run on control node:

ssh-keygen -f "/root/.ssh/known_hosts" -R "123.123.123.123"

To check count of calls from from hosts

ansible all -a "asterisk -rx \"core show calls\""

if everything works fine, you will see:

123.123.123.123| CHANGED | rc=0 >>
328 active calls
691163 calls processed

123.123.123.124 | CHANGED | rc=0 >>
167 active calls
346948 calls processed

123.123.123.125 | CHANGED | rc=0 >>
382 active calls
371352 calls processed

123.123.123.126 | CHANGED | rc=0 >>
356 active calls
691689 calls processed

if you want to use complex command you may use this:

ansible all -m shell -a "asterisk -rx \"core show calls\" | grep 'active' && asterisk -rx \"fax show sessions\" | grep 'FAX session' "

123.123.123.123 | CHANGED | rc=0 >>
388 active calls
117 FAX sessions

123.123.123.124 | CHANGED | rc=0 >>
188 active calls
59 FAX sessions

123.123.123.125 | CHANGED | rc=0 >>
393 active calls
123 FAX sessions

123.123.123.126 | CHANGED | rc=0 >>
381 active calls
119 FAX sessions