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Devops build variables - Eduard Kabrinskiy


<h1>Devops build variables</h1>
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<h1>How to use variables inside your Azure DevOps builds</h1>
<h2>Quick tips on how to use correctly variables inside your builds.</h2>
<p>When you create a build inside Azure DevOps you always have a configuration to pass to generate your application package. This configuration can have variables like, environnement variables, folder path, logins, passwords?</p>
<p>By default all these configurations are directly defined inside your azure-pipeline.yml file. This latter will be saved inside your code source repository. This is a good thing to keep all your build configurations with your project but as you can imagine, passwords must not be saved in clear in your code repository for security reasons. This is where the variables come into play.</p>
<h2>How to use variables?</h2>
<p>You have multiples possibilities, you can use variables directly on your azure-pipeline.yml file like this:</p>
<p>Or you can use Variable groups like this:</p>
<p>If you want to use both you need to declare it like this:</p>
<p>In this case you will have to use name/value tags for the variables not grouped.</p>
<h2>Create a variable groups</h2>
<h3>Signing task</h3>
<p>Let?s take an example with a signing task for Android:</p>
<p>As you can see above, we have some values like:</p>
<p><ul>
<li>The alias password</li>
<li>The keystore password</li>
</ul>
</p>
<p>These values should not be directly readable inside the build definition. So let?s move it to a variable groups.</p>
<h3>Setup variable groups</h3>
<p>To setup it, go to <em>Pipelines</em> > <em>Library</em> > <em>Variable groups</em> and create a new <em>Variable group</em>.</p>
<p>First give it a name for example: android-build-variables . Keep in mind that this name will be used inside your azure-pipeline.yml so avoid using spaces it will be easier to use. Then add your variables with a name and the associated value.</p>
<p>Here what we have for our example:</p>
<p style="clear: both"><img src="https://damienaicheh.github.io/assets/p ... xample.png" /></p>
<p>When you write a password you need to click on the padlock button to hide it to other users. Be careful, if you click again in this button the password value will be removed for security reasons, so you will need to rewrite it again, so no one can get the password.</p>
<p>Disable the option Allow access to all pipelines , the variable groups must be used just by your build.</p>
<p>Don?t forget to save it before going back to your build.</p>
<h3>Load your variables group</h3>
<p>Now let?s load the variables group before the steps tag and call each variables we just created using this syntax: $(my_variable_name) .</p>
<p>Here is the updated example:</p>
<p>When you will run your build for the first time, you will get an error like this:</p>
<p style="clear: both"><img src="https://damienaicheh.github.io/assets/p ... essage.png" /></p>
<p>This tell you that your build does not have access to your variable groups, just click the <em>Authorize resources</em> button and restart your build.</p>
<p>If you look at the build logs you will see that the passwords you passed are automatically replaced by *** .</p>
<h2>Devops build variables</h2>

<h3>Devops build variables</h3>
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<h4>Devops build variables</h4>
Quick tips on how to use correctly variables inside your builds.
<h5>Devops build variables</h5>
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SOURCE: <h6>Devops build variables</h6> <a href="https://dev-ops.engineer/">Devops build variables</a> Devops build variables
#tags#[replace: -,-Devops build variables] Devops build variables#tags#
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