> For the complete documentation index, see [llms.txt](https://platform9.com/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://platform9.com/kb/pmk/solutions/persist-docker-registry-mirrors.md).

# Persist Docker Registry Mirrors

## Problem

We would like to use local registry-mirrors and if we add it to */etc/docker/daemon.json* it will get overwritten after the restart ***pf9-kube***. Is there way to persist it?

## Environment

* Platform9 Managed Kubernetes - All Versions

## Procedure

Add the registry-mirrors information to the template */opt/pf9/pf9-kube/conf/daemon.json* and replace the *\[your-registry-mirror]* with endpoint of your registry.

{% tabs %}
{% tab title="None" %}

```none
"registry-mirrors": ["https://[your-registry-mirror]/"]
```

{% endtab %}
{% endtabs %}

Restart the pf9-kube service.

{% tabs %}
{% tab title="None" %}

```none
$ sudo /etc/init.d/pf9-kube restart
```

{% endtab %}
{% endtabs %}

Make sure the ***pf9-kube*** service is running.

{% tabs %}
{% tab title="None" %}

```none
$ sudo /etc/init.d/pf9-kube status
```

{% endtab %}
{% endtabs %}

Validate the registry change in *daemon.json* file.

{% tabs %}
{% tab title="None" %}

```none
$ cat /etc/docker/daemon.json
```

{% endtab %}
{% endtabs %}

## Additional Information

This change will persist if there is reboot of node or restart of ***pf9-kube*** service, but will not be persistent across upgrades.


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