In this tutorial. You can Build infrastructure with Vagrant Ansible for testing. How to set up a local server using Vagrant Ansible.
Ansible the essential for DevOps Roles. Now, let’s go to Vagrant Ansible example 01.
Table of Contents
My local server
[huupv@huupv my_ansible]$ cat /etc/redhat-release Fedora release 28 (Twenty Eight) [huupv@huupv my_ansible]$ vagrant --version Vagrant 2.0.2 [huupv@huupv my_ansible]$ ansible --version ansible 2.6.4 config file = /etc/ansible/ansible.cfg configured module search path = [u'/home/huupv/.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 = 2.7.15 (default, May 16 2018, 17:50:09) [GCC 8.1.1 20180502 (Red Hat 8.1.1-1)]
Vagrant Ansible example
Step 1: You have to install Vagrant for your OS. If you have not to install Vagrant then ref to install Vagrant on Centos and install Vagrant on Ubuntu.
Step 2: Creating a folder and file your project.
example01/ ├── ansible.cfg ├── playbooks │ ├── inventory │ │ └── hosts │ ├── ntp.yml │ └── templates │ └── ntp.conf.j2 └── Vagrantfile 3 directories, 5 files
Step 3: Build infrastructure with Vagrant for testing. Define two servers: an app server and a database server in the Vagrantfiles file.
Vagrant init creates Vagrantfiles minimal file
[huupv@huupv example01]$ vagrant init --minimal
The terminal output as below
==> vagrant: A new version of Vagrant is available: 2.1.5! ==> vagrant: To upgrade visit: https://www.vagrantup.com/downloads.html A `Vagrantfile` has been placed in this directory. You are now ready to `vagrant up` your first virtual environment! Please read the comments in the Vagrantfile as well as documentation on `vagrantup.com` for more information on using Vagrant.
The content in Vagrantfile for the app server and DB server as below
[huupv@huupv example01]$ cat Vagrantfile
The terminal output as below
Vagrant.configure("2") do |config|
config.ssh.insert_key = false
config.vm.provider :virtualbox do |vb|
vb.customize ["modifyvm", :id, "--memory", "256"]
end
# Application server 1.
config.vm.define "app1" do |app1|
app1.vm.hostname = "app1.dev"
app1.vm.box = "centos/7"
app1.vm.network :private_network, ip: "192.168.3.4"
end
# Database server.
config.vm.define "db" do |db|
db.vm.hostname = "db.dev"
db.vm.box = "centos/7"
db.vm.network :private_network, ip: "192.168.3.5"
end
config.vm.provision "ansible" do |ansible|
ansible.playbook = "playbooks/ntp.yml"
ansible.verbose = true
ansible.limit = "all" # or only "nodes" group, etc.
# Run commands as root.
ansible.sudo = true
end
end
Ansible playbook for NTP server
Creating an inventory file for multiple servers
# Application servers
[app]
192.168.3.4 # Database server
[db]
192.168.3.5 # Group ‘multi’ with all servers
[multi:children]
app db # Variables that will be applied to all servers
[multi:vars]
ansible_ssh_user=vagrant ansible_ssh_private_key_file=~/.vagrant.d/insecure_private_key
Create a ntp.yml file in the folder Playbooks
- hosts: all
tasks:
- name: Ensure NTP (for time synchronization) is installed.
yum: name=ntp state=installed
- name: Configure NTP
template: src=ntp.conf.j2 dest=/etc/ntp.conf
notify:
- restart ntpd
- name: Ensure NTP is running.
service: name=ntpd state=started enabled=yes
Create ntp.conf.j2 file template
statistics loopstats peerstats clockstats filegen loopstats file loopsstats type day enable filegen peerstats file peerstats type day enable filegen clockstats file clockstats type day enable #server your_NTP_server_IP server 0.rhel.pool.ntp.org iburst server 1.rhel.pool.ntp.org iburst server 2.rhel.pool.ntp.org iburst server 3.rhel.pool.ntp.org iburst restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1
Vagrant run ansible local
Running vagrant up the first time. Vagrant automatically provisions the newly-minted VM. Run “vagrant provision” again after the VM has been created.
The first run vagrant up
[huupv@huupv example01]$ vagrant up
The terminal output as below
Run vagrant provision again.
[huupv@huupv example01]$ vagrant provision
The terminal output as below
The result Vagrant Ansible example, The terminal output as below
[huupv@huupv example01]$ vagrant ssh app1 Last login: Sat Sep 15 06:26:42 2018 from 10.0.2.2 [vagrant@app1 ~]$ cat /etc/ntp.conf statistics loopstats peerstats clockstats filegen loopstats file loopsstats type day enable filegen peerstats file peerstats type day enable filegen clockstats file clockstats type day enable #server your_NTP_server_IP server 0.rhel.pool.ntp.org iburst server 1.rhel.pool.ntp.org iburst server 2.rhel.pool.ntp.org iburst server 3.rhel.pool.ntp.org iburst restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1 [vagrant@app1 ~]$ exit logout Connection to 127.0.0.1 closed. [huupv@huupv example01]$ vagrant ssh db Last login: Sat Sep 15 06:26:42 2018 from 10.0.2.2 [vagrant@db ~]$ cat /etc/ntp.conf statistics loopstats peerstats clockstats filegen loopstats file loopsstats type day enable filegen peerstats file peerstats type day enable filegen clockstats file clockstats type day enable #server your_NTP_server_IP server 0.rhel.pool.ntp.org iburst server 1.rhel.pool.ntp.org iburst server 2.rhel.pool.ntp.org iburst server 3.rhel.pool.ntp.org iburst restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify nopeer noquery restrict 127.0.0.1 restrict ::1 [vagrant@db ~]$ exit logout Connection to 127.0.0.1 closed. [huupv@huupv example01]$
Conclusion
Through the article, you can use Vagrant Ansible example of best practice. I hope will this your helpful. For more details refer to Ansible tutorial.
