ANSIBLE UNTAR EXAMPLE CODE

ANSIBLE UNTAR EXAMPLE CODE

Whew, I haven’t written anything this long, in a long while (well except big project code at work?). There is no feature for a “success_when”, but instead you can use Ansible’s Assert What’s the success equivalent to failed_when?įailed_when is for defining what a task considers as a fail. Here’s an awesome article written about this subject. Whereas use Ansible’s failed_when when there is only 1 condition, and you want to write less script. This way only the failed asserts are verbose whilst the successful ones only show the field “task”īoth achieve the same purpose but assert is better when handling multiple conditions and want to get feedback on which assert fail. 2 This seems to be the correct answer, but currently it can cause a crash.

We then use label with Ansible’s Loop Control to control the output of each loop / each assert result.

We use Ansible’s Assert quiet setting to avoid verbose output.

hosts : docker-server vars : trigger_condition : fasle tasks : - : msg : ' This message triggered due to the conditional' when : trigger_condition = true - : msg : ' This message will always run'Īccording to the Ansible docs, Tests are:Ī way of evaluating template expressions and returning True or False Ansible Test vs Filter?Īfter ansible 2.9 you must use jinja test syntax as opposed to filter syntax when performing a test: What are Ansible Conditionals and Ansible the When Keyword?Ĭonditionals in Ansible is simply a condition that is set in order to perform a task.

You can use a different version of python or Ansible core but just be wary that some of the implementations on this document might not work on much older versions of Ansible or require a different method Ansible Host & Managed/remote host is using Ubuntu.Ansible Host is running Python 3 and Managed/remote host is running Python 2.7.So I wrote this guide to help your through the hassle of that! However, because of this - I find it quite tricky to understand and use the logic techniques and the different data types that can potentially get passed around in my playbooks because Ansible uses YAML template and Jinja. Thankfully Ansible provides multiple ways to do this particularly using Jinja in Ansible’s templating. So you find that you need some logic in your playbooks for your not so simple use case. tasks: - name: copy src.txt to files/backuptest and create a backup of src.txt. What’s the success equivalent to failed_when?įor some people a simple playbook is not always practical. No worries, we have the option in the ansible copy module to take a backup of the previous version of the destination file.Scenario - only show assert error output and not assert success.Scenario - Ansible Ignore errors in tasks and fail at end of the playbook if any tasks had errors.Returns a string list of paths joined by commas, or an empty list if no files match. To iterate a list of files on a remote node, use the find module. Matching is against local system files on the Ansible controller. Scenario - Filter list based on matched string item | Using select with regex match Patterns are only supported on files, not directory/paths.Scenario - Assert fail when a string is found only once in a string | Using regex_findall() to give all instances of a subtring.Scenario - Check if for a value match in list of dictionary/objects.

Scenario - Assert failure when source list holds more values than target list.Scenario - Check that a list of variables have been defined.

Scenario - Run task only when a variable contains a specific string.Scenario - Run Task when variable is undefined.Scenario - Assert Check two string keywords or multiple test conditions.Check if dictionary value exists (or does not).Check if dictionary key exists (or does not), also in nested key.Does the key or value exists in dictionary.Does the item exist in list (or is not in list).Using regex matching for simple email validation.Wildcard matching URL pattern using search.Example - wildcard matching file names using match.Other ways to check string / dict / array is empty.Check if string / dict / array empty or None.Using Jinja undefined() test to check for defined or undefined variables.Using the Jinja defined() to check for defined or undefined variables.

Is a variable is defined or registered or undefined.

What are Ansible Conditionals and Ansible the When Keyword?.

Here's an example that will only run on ubuntu 12.04 when: ''' = 'bionic'Īnsible now expects another syntax for conditional statements, as stated in the docs.įor Ansible 2.

Ansible untar example