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Monday 16 July 2018

Automate IT Infrastructure using Ansible Automation tool | Crating a Vault key for Mongo DB playbook

Below are the mongo db playbook tree structure where "main.yaml" will be secured using ansible vault features.

=======================================================================

[root@labin005 ansible]# pwd
/etc/ansible

[root@labin005 ansible]# cat mongo.yaml ( Main Playbook which will call a roles)
---
- hosts: mongo_UT_Servers                         ( Hosts are defined in /etc/ansible/hosts file in a Group)
  gather_facts: True 
  roles:
  - mongo


[root@labin005 ansible]# tree roles/mongo
roles/mongo
├── files
│   ├── access.conf
│   └── hosts
├── tasks
│   ├── access_user.yaml
│   ├── filesystem.yaml
│   ├── folder.yaml
│   ├── group.yaml
│   ├── grub.yaml
│   ├── inventory
│   ├── kernel_Tunning.yaml
│   ├── main.yaml
│   ├── mount.yaml
│   ├── permission.yaml
│   ├── sudo.yaml
│   ├── swap_off.yaml
│   └── user.yaml
├── templates
└── vars
    ├── main.yaml
    └── vault.yaml

4 directories, 17 files
[root@labin005 ansible]#

========================================================================

Creating an Encrypted File 
/etc/ansible/roles/mongo/tasks/main.yaml play book.

[root@labin005 ~]# ansible-vault encrypt /etc/ansible/roles/mongo/tasks/main.yaml
New Vault password:
Confirm New Vault password:

=======================================================================

Run Ansible Playbook with Encrypted Variables --ask-vault-pass


[root@labin005 ansible]# ansible-playbook mongo.yaml --check --ask-vault-pass
Vault password:

PLAY [mongo_UT_Servers]
 ********************************************************************

TASK [Gathering Facts] **********************************************************************
ok: [labin0103-4]
ok: [labin0103-3]
ok: [labin0103-6]
ok: [labin0104-4]
ok: [labin0103-5]
ok: [labin0103-2]
ok: [labin0111]

TASK [mongo : Create a Group for mongodb | Executing group.yaml] ****************************
changed: [labin0103-6]
changed: [labin0103-5]
changed: [labin0103-4]
changed: [labin0103-3]
changed: [labin0103-2]
changed: [labin0104-4]
changed: [labin0111]

TASK [mongo : MongoDB | Create a User for mongodb | Executing user.yaml] ********************
changed: [labin0103-6]
changed: [labin0103-5]
changed: [labin0103-3]
changed: [labin0103-4]
changed: [labin0103-2]
changed: [labin0104-4]
changed: [labin0111]

TASK [mongo : MongoDB | Filesystem fixlib configuration | Running a filesystem.yaml] ********
changed: [labin0103-4]
changed: [labin0103-3]
changed: [labin0103-6]
changed: [labin0103-5]
changed: [labin0103-2]
changed: [labin0104-4]
changed: [labin0111]

TASK [mongo : MongoDB | Filesystem mongod_data_directory configuration....] *****************
changed: [labin0103-6]
changed: [labin0103-5]
changed: [labin0103-4]
changed: [labin0103-2]
changed: [labin0103-3]
changed: [labin0104-4]
changed: [labin0111]

TASK [mongo : MongoDB | Format new partition fixlib_software_directory] *********************
fatal: [labin0103-5]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0103-6]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0103-4]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0103-2]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0103-3]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0104-4]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
fatal: [labin0111]: FAILED! => {"changed": false, "msg": "Device /dev/sdb1 not found."}
        to retry, use: --limit @/etc/ansible/mongo.retry

PLAY RECAP **********************************************************************************
labin0111                : ok=5    changed=4    unreachable=0    failed=1
labin0103-2                 : ok=5    changed=4    unreachable=0    failed=1
labin0103-3                 : ok=5    changed=4    unreachable=0    failed=1
labin0103-4                 : ok=5    changed=4    unreachable=0    failed=1
labin0103-5                 : ok=5    changed=4    unreachable=0    failed=1
labin0103-6                 : ok=5    changed=4    unreachable=0    failed=1
labin0104-4                 : ok=5    changed=4    unreachable=0    failed=1

Note: This playbook is executed to check vault configuration only , since /dev/sdb1 is not created on the servers due to that playbook giving disk failed status.