---
title: "Hardened images tab for configuring upstreams"
description: "The new Hardened images tab lets you proxy and cache hardened, minimal container images without manual format/URL entry."
canonical_url: "https://cloudsmith.com/changelog/hardened-images-tab-for-configuring-upstreams"
last_updated: "2026-07-15T09:19:52.752Z"
---
# Hardened images tab for configuring upstreams

The new **Hardened images** tab lets you proxy and cache hardened, minimal container images without manual format/URL entry.

```json
{
  "_key": "cedbb72d5a7b",
  "_type": "image",
  "alt": "The 'Hardened images' tab of the upstream configuration modal in the Cloudsmith web app.",
  "asset": {
    "_createdAt": "2026-07-14T15:58:19Z",
    "_id": "image-69c3f09471cf381cf3eac7bb24252a3dd9073048-2064x1414-png",
    "_rev": "87NwVyLVRaU0fX4WNOKIvf",
    "_type": "sanity.imageAsset",
    "_updatedAt": "2026-07-14T15:58:19Z",
    "assetId": "69c3f09471cf381cf3eac7bb24252a3dd9073048",
    "extension": "png",
    "metadata": {
      "_type": "sanity.imageMetadata",
      "blurHash": "V6SZ2:~W?H%MRitSNJM{NGxu%MM_WBofRj~ps+jYoeWC",
      "dimensions": {
        "_type": "sanity.imageDimensions",
        "aspectRatio": 1.4596888260254597,
        "height": 1414,
        "width": 2064
      },
      "hasAlpha": true,
      "isOpaque": false,
      "lqip": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAOCAYAAAAvxDzwAAAACXBIWXMAABYlAAAWJQFJUiTwAAACPklEQVR4nIWS64pUORRG6/0fySeYPyI9IP4TFGy769Q5J/fs+yepGp2WESawSNiQlX3JZRA959qPM9eca88smt09q3lm9Ux38Ab/HfE8BYUU2xD/dGHR1CfN3LqU1pVZ1NxVzZXYtQ/VOljbFB2sSuI6ybX1FSdtg3SyiRqKOD5fVK3RSqvNyG3EJAkzDzVEbx6324ztKLHnGrWPILaoRWO7tnjZztiOFG1MV/Ouji8XUbTBrmfTOKqgTgNpQDTQuuK2N2x7xp4KSusgVtTKuG4FL9uB7UgrHqw2xPD1worWpuutamxFUYaDBBAFJhtqJ5Q27/RBYDFMVuQ2kepAbmPFQ34KxXy1QVOdkRphkkEtoAYMDuQm94uL2ieIDZ0cqTHOMnCWjtJnsOhDaOZN1HQSxySGqsH9ISzD8LJ3fN9OXI+EXBsGCc4m+H6r+Pa649vrDbezBLEMsfh6AdDcsSYb7o6IwFrmgTYU29lw3ROOXDGIQKJIdeL5mu6yl23HkR9CdTyEABTAw/TP8gBIfE3sXurKTG29HOiTcZSOs7RHD+fPHsb/CDXQSdEmY7BCltADrIF5H45hioPUQs3/KPyFOaJNjT312I4cq6w2ZpBosCLYcN9pnXX923+FFYCspN5iDu+TfTuLv95Ov53Zc+0+iF3MXQy/YY6uhi9L+BwRu7snAL9wR2Kx1Can2im1SWmQJFZL6kj2H+LVHB8v7vjL3T+4+9NbzP1J1J/I4ol04XfE/oD636T+ns3f/QBO3D1hUsolMgAAAABJRU5ErkJggg==",
      "palette": {
        "_type": "sanity.imagePalette",
        "darkMuted": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#4c445e",
          "foreground": "#fff",
          "population": 0.01,
          "title": "#fff"
        },
        "darkVibrant": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#0c2177",
          "foreground": "#fff",
          "population": 0,
          "title": "#fff"
        },
        "dominant": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#a7b1d0",
          "foreground": "#000",
          "population": 0.06,
          "title": "#fff"
        },
        "lightMuted": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#a7b1d0",
          "foreground": "#000",
          "population": 0.06,
          "title": "#fff"
        },
        "lightVibrant": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#6ca4fc",
          "foreground": "#000",
          "population": 0,
          "title": "#fff"
        },
        "muted": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#5565a5",
          "foreground": "#fff",
          "population": 0.03,
          "title": "#fff"
        },
        "vibrant": {
          "_type": "sanity.imagePaletteSwatch",
          "background": "#1434bc",
          "foreground": "#fff",
          "population": 0,
          "title": "#fff"
        }
      },
      "thumbHash": "/feBA4AP/lRhVE3vMPpas0hIiIdwiAg="
    },
    "mimeType": "image/png",
    "originalFilename": "upstream_hardened_images.png",
    "path": "images/rafvlnhi/production/69c3f09471cf381cf3eac7bb24252a3dd9073048-2064x1414.png",
    "sha1hash": "69c3f09471cf381cf3eac7bb24252a3dd9073048",
    "size": 195681,
    "uploadId": "4dec8c4078022168d4159fad4b65ed9bd5bb3bd0",
    "url": "https://cdn.sanity.io/images/rafvlnhi/production/69c3f09471cf381cf3eac7bb24252a3dd9073048-2064x1414.png"
  },
  "link": {
    "_type": "link",
    "href": null,
    "openInNewTab": false
  },
  "markDefs": null
}
```

Supported quick configure vendors:

- **Docker Hardened Images (DHI)**
- **Chainguard Containers**
- **WizOS**

Pre-configured upstreams are available for the DHI Community and Chainguard Containers Free tiers.

For paid tiers (DHI Select/Enterprise, Chainguard Containers, and WizOS), the proxy URL is pre-filled automatically. Just select the card, name your upstream, and add credentials where required.



For more information, see our integration guides for [Docker Hardened Images](https://docs.cloudsmith.com/integrations/integrating-with-docker-hardened-images), [Chainguard Containers](https://docs.cloudsmith.com/integrations/integrating-with-chainguard-images), and [WizOS](https://docs.cloudsmith.com/integrations/integrating-with-wizos).



```json
{
  "_key": "fb6a5a5756d0",
  "_type": "callout",
  "content": [
    {
      "_key": "aeec59be5a9f",
      "_type": "block",
      "children": [
        {
          "_key": "bd6a7d3e223f",
          "_type": "span",
          "marks": [],
          "text": "Other hardened image registries can still be added as upstreams by using manual configuration. To register interest in additional quick configure vendor support, please "
        },
        {
          "_key": "ae2bb39e74a7",
          "_type": "span",
          "marks": [
            "590ae388e71e"
          ],
          "text": "contact us"
        },
        {
          "_key": "6338c1f36446",
          "_type": "span",
          "marks": [],
          "text": "."
        }
      ],
      "markDefs": [
        {
          "_key": "590ae388e71e",
          "_type": "link",
          "href": "https://cloudsmith.com/company/contact-us",
          "linkType": "page",
          "openInNewTab": true,
          "page": {
            "_ref": "dzK2wVAA57yBLOb07XjZLg",
            "_type": "reference"
          }
        }
      ],
      "style": "normal"
    }
  ],
  "markDefs": null,
  "variant": "info"
}
```
