feat(snmp_exporter):add support for config.expand-environment-variables flag

[Luatan]

Adds support to enable the config.expand-environment-variables flag to be able to pass environment variables from proemtheus directly.

[gardar]

Thanks for the PR.
Please add the new option to the argument specs of the role too.

[Luatan]

Thanks for the PR. Please add the new option to the argument specs of the role too.

Hey Gardar,
sure. Added.

Thanks

[github-actions]

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https://prometheus-community.github.io/ansible/pr/811

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• M snmp_exporter_role.html

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diff --git a/home/runner/work/ansible/ansible/docsbuild/base/snmp_exporter_role.html b/home/runner/work/ansible/ansible/docsbuild/head/snmp_exporter_role.html
index 8d242e4..579c9e6 100644
--- a/home/runner/work/ansible/ansible/docsbuild/base/snmp_exporter_role.html
+++ b/home/runner/work/ansible/ansible/docsbuild/head/snmp_exporter_role.html
@@ -219,6 +219,15 @@ To check whether it is installed, run <code class="code docutils literal notrans
 </div></td>
 </tr>
 <tr class="row-odd"><td><div class="ansible-option-cell">
+<div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_expand_environment_variables"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-expand-environment-variables"><strong>snmp_exporter_expand_environment_variables</strong></p>
+<a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_expand_environment_variables" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
+</div></td>
+<td><div class="ansible-option-cell"><p>allows passing environment variables into some fields of the configuration file.</p>
+<p>The username, password &amp; priv_password fields in the auths section are supported.</p>
+<p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">false</span></code></p>
+</div></td>
+</tr>
+<tr class="row-even"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_local_cache_path"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-local-cache-path"><strong>snmp_exporter_local_cache_path</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_local_cache_path" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>
@@ -226,7 +235,7 @@ To check whether it is installed, run <code class="code docutils literal notrans
 <p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">&quot;/tmp/snmp_exporter-{{</span> <span class="pre">ansible_facts['system']</span> <span class="pre">|</span> <span class="pre">lower</span> <span class="pre">}}-{{</span> <span class="pre">_snmp_exporter_go_ansible_arch</span> <span class="pre">}}/{{</span> <span class="pre">snmp_exporter_version</span> <span class="pre">}}&quot;</span></code></p>
 </div></td>
 </tr>
-<tr class="row-even"><td><div class="ansible-option-cell">
+<tr class="row-odd"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_log_level"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-log-level"><strong>snmp_exporter_log_level</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_log_level" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>
@@ -234,7 +243,7 @@ To check whether it is installed, run <code class="code docutils literal notrans
 <p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">&quot;info&quot;</span></code></p>
 </div></td>
 </tr>
-<tr class="row-odd"><td><div class="ansible-option-cell">
+<tr class="row-even"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_system_group"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-system-group"><strong>snmp_exporter_system_group</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_system_group" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>
@@ -243,7 +252,7 @@ To check whether it is installed, run <code class="code docutils literal notrans
 <p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">&quot;snmp-exp&quot;</span></code></p>
 </div></td>
 </tr>
-<tr class="row-even"><td><div class="ansible-option-cell">
+<tr class="row-odd"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_system_user"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-system-user"><strong>snmp_exporter_system_user</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_system_user" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>
@@ -252,7 +261,7 @@ To check whether it is installed, run <code class="code docutils literal notrans
 <p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">&quot;snmp-exp&quot;</span></code></p>
 </div></td>
 </tr>
-<tr class="row-odd"><td><div class="ansible-option-cell">
+<tr class="row-even"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_version"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-version"><strong>snmp_exporter_version</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_version" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>
@@ -260,7 +269,7 @@ To check whether it is installed, run <code class="code docutils literal notrans
 <p class="ansible-option-line"><strong class="ansible-option-default-bold">Default:</strong> <code class="ansible-option-default docutils literal notranslate"><span class="pre">&quot;0.30.1&quot;</span></code></p>
 </div></td>
 </tr>
-<tr class="row-even"><td><div class="ansible-option-cell">
+<tr class="row-odd"><td><div class="ansible-option-cell">
 <div class="ansibleOptionAnchor" id="parameter-main--snmp_exporter_web_listen_address"></div><p class="ansible-option-title" id="ansible-collections-prometheus-prometheus-snmp-exporter-role-parameter-main-snmp-exporter-web-listen-address"><strong>snmp_exporter_web_listen_address</strong></p>
 <a class="ansibleOptionLink" href="#parameter-main--snmp_exporter_web_listen_address" title="Permalink to this option"></a><p class="ansible-option-type-line"><span class="ansible-option-type">string</span></p>
 </div></td>