Cloud Architecture  DevOps  Systems Administration 

Ansible

August 31, 2022

 Table of Contents


  1. What is Ansible?

  2. Installing on Mac

  3. Installing on CentOS

  4. Installing on Debian


    1. Syncing Ansible Control Nodes


      1. Iterating over a simple list

      2. Iterating over a list of hashes

  5. Using Hosts

  6. Using Playbooks

  7. Automation with Ansible

  8. loop vs with_items

  9. module: lineinfile not working as expected

  10. Gathering OS Ansible facts

  11. Block variables

  12. Failed to validate GPG signature for remi-release-8.1-2.el8.remi.noarch

  13. Hosts variables

  14. Conditionals – Detecting Package Version

  15. Conditionals – Detecting Package Version

  16. Playbook stalls

  17. missing dependency: python-apt

  18. Unhandled error in Python interpreter discovery for host kali

  19. WARNING: apt does not have a stable CLI interface

  20. Docker Containers

  21. Copying public PEM to new cloud server

  22. Cloning Private Git Repositories

  23. View Ansible Vault Variables

  24. Ansible Variables


    1. Using roles

    2. Using var_files

  25. Syntax Error while loading YAML

  26. Playbook stalls (2)

  27. Failed to connect to the host via ssh

  28. Packages can be upgraded

  29. ERROR! couldn’t resolve module/action ‘amazon.aws.ec2_instance’

  30. [DEPRECATION WARNING]: amazon.aws.ec2 has been deprecated

  31. Unable to run Ansible playbooks for AWS

  32. Dynamic Inventories

  33. ERROR! The ec2 dynamic inventory plugin requires boto3 and botocore


    1. On Centos

    2. On Debian


      1. Viewing encrypted variablesÁ

  34. Passing multiple variables

  35. Templates (Jinja2)

  36. Multiple configurations

  37. Asking passwords

  38. YAML Pipe vs Greater-than Symbols

  39. group_vars and hosts_vars

  40. MySQL

  41. List and Dictionaries

  42. Includes vs Imports


    1. import, include playbook

    2. import, include role

    3. import, include tasks

    4. import, include vars

  43. Testing bmo-deploy.yml


    1. Prerequisite

    2. Uploading artifacts

    3. Executing playbook

    4. Verifying files

  44. ERROR! couldn’t resolve module/action cummunity.general.mail

  45. ERROR! The role ‘olbb-restart’ was not found

  46. ERROR! couldn’t resolve module/action syslogger

  47. changed_when vs failed_when


    1. changed_when

    2. failed_when

  48. Variable precedence


    1. Test 1 – Who will win?

    2. Test 2 – Who will win?

    3. Test 3 – Who will win?

    4. Why do I get these consistent results?

    5. Test 4 – Who will win?

    6. Test 5 – Who will win?

  49. Combining Variables

  50. Declaring Variables

  51. Ad-hoc commands – Sorting hosts

  52. Tags – Targeting roles and tasks

  53. MySQL – The error was: ‘dict object’ has no attribute ‘root’

  54. User Management


    1. Lessons Learned

  55. MySQL – unable to install pip pymysql

  56. Vault – Encrypting variables

  57. Vault – Encrypting files


    1. Creating encrypted files

    2. Encrypting existing files

    3. Viewing encrypted files

    4. Editing encrypted files

    5. Changing the password and/or vault ID on encrypted files

    6. Decrypting encrypted files

  58. Escaping double quotes

  59. Roles

  60. The connection plugin ‘docker’ was not found

  61. An unhandled exception occurred while running the lookup plugin ‘template’

  62. Output formatting

  63. Timing Playbooks

  64. –ask-pass (-k) & –ask-become-pass (-K) & –ask-vault-pass

  65. Missing sudo password


    1. Problem

    2. Solution for MacOS

    3. Solution for BMO (Not yet found)

  66. Dictionary extra variable

  67. ansible_date_time timezone

  68. Breakpoints

  69. ERROR! couldn’t resolve module/action ‘ansible.posix.authorized_key’

  70. Working with a List of Dictionaries – selectattr() and map()

  71. Failed to import the required Python library (botocore and boto3)


    1. Attempt 1 – failed but progressing…

    2. Attempt 2 – failed but progressing…

    3. Attempt 3 – failed but progressing…

    4. Attempt 4 – failed but progressing…

    5. Attempt 5 – failed

    6. Attempt 6 – failed

    7. Attempt 7 – failed

    8. Attempt 8 – failed

    9. Attempt 9 – failed

    10. Attempt 10 – Succeeded

  72. Preserving Tabs with Debug Module

  73. [WARNING]: Unable to parse {{ INVENTORY }} as an inventory source

  74. {{ VARIABLE_NAME }} is undefined

  75. Ad-hoc commands

  76. Ad-hoc commands – Sorting hosts

  77. Ad-hoc commands with –extra-vars in JSON/YAML file

  78. An unhandled exception occurred while running the lookup plugin ‘template’

  79. Ansible API

  80. Ansible playbook debugging

  81. Ansible Tower migration to Ansible Automation Platform (AAP)

  82. Ansible Tower/AAP: Auto-deploy script to launch Job Templates does not clear Job Tags an/or skip Tag Fields

  83. Ansible Tower/AAP: Boolean variables not treated as such

  84. Ansible Tower/AAP: Connection failure: The read operation timed out

  85. Ansible Tower/AAP: Creating Projects and Templates

  86. Ansible Tower/AAP: Job failed and has no output

  87. Can’t use own inventory

  88. Can’t use sudo

  89. Can’t use tags

  90. Certificate Management

  91. Conditionals – Detecting Package Version

  92. Conflicting characters

  93. Error creating {{ DIRECTORY }}

  94. ERROR! Attempting to decrypt but no vault secrets found

  95. ERROR! couldn’t resolve module/action ‘amazon.aws.ec2_instance’

  96. ERROR! couldn’t resolve module/action ‘ansible.posix.authorized_key’

  97. ERROR! couldn’t resolve module/action ‘community.general.mail’

  98. ERROR! couldn’t resolve module/action ‘cummunity.general.mail’

  99. ERROR! couldn’t resolve module/action ‘sefcontext’

  100. ERROR! couldn’t resolve module/action ‘syslogger’

  101. ERROR! Decryption failed

  102. ERROR! the role ‘{{ ROLE_NAME }}’ was not found

  103. Escaping special characters

  104. Execute playbook as another user

  105. Failed to change ownership of the temporary files Ansible needs to create despite connecting as a priviledge user. Unprivileged become user would be unable to read the file.

  106. HTTP Error 401: Unauthorized

  107. HTTP Error 403: Forbidden

  108. Linting

  109. Lists and Dictionaries

  110. Loops – loop vs with_items

  111. Maximum recursion depth exceeded

  112. Missing variable(s)

  113. Multiple configurations for multiple organizations

  114. No space left on device

  115. Object of type ‘int’ has no len() VS ‘>’ not supported between instances of ‘str’ and ‘int’

  116. Patch Management

  117. Precondition failed

  118. role: include_vault fails

  119. SCM Update

  120. Special variables

  121. sudo: /etc/sudo.conf is owned by uid *

  122. Tags

  123. Tags: include/exclude roles

  124. Tags: include/exclude tasks

  125. Jinja Templates

  126. The connection plugin ‘docker’ was not found

  127. Timeout (12s) waiting for priviledge escalation prompt

  128. Unreachable hosts

  129. Using a SSH password instead of a key is not possible because host key checking is enabled and sshpass does not support this.

  130. Vault

  131. Vault: Encrypting files

  132. Vault: Encrypting variables

  133. Working with a List of Dictionaries – selectattr() and map()


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Written By victord On August 31, 2022