<p>Is there currently any way to utilize kubernetes persistent volumes instead of a KV store in order to store Let's encrypt certificates? </p>

<p>From the documentation, storing let's encrypt information inside a json file cannot be used to share info across traefik pods. But I was wondering about other solutions, maybe boltdb on a shared volume?</p>

ITChap
<p>According the <a href="https://docs.traefik.io/configuration/acme/#as-a-key-value-store-entry" rel="nofollow noreferrer">official document of Traefik HA</a>, it seems you have only one option in order traefik detect those certificates within a cluster mode.</p>
<blockquote>
<p><strong>As a Key Value Store Entry</strong></p>
<p>ACME certificates can be stored in a KV Store entry. This kind of storage is <strong>mandatory</strong> in cluster mode.</p>
</blockquote>
