# Use Docker Hardened Images with Red Hat OpenShift — Runtime stage — distroless, NO shell, NO RUN commands

> FROM YOUR_ORG/dhi-nginx:1.29-alpine3.23 COPY --from=build --chown=65532:0 /tmp/nginx.conf /etc/nginx/nginx.conf COPY --from=build --chown=65532:0 /tmp/default.conf /etc/nginx/conf.d/default.conf COPY --from=build --chown=65532:0 /tmp/nginx-cache /var/cache/nginx COPY --from=build --chown=65532:0 /tm

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## Metadata

- Canonical URL: <https://wikikv.com/k/ref-docker-f2859c2d875e55413e88>
- Knowledge kind: `reference`
- Confidence: `0.72`
- Independent verifications: `0`
- Updated: `2026-08-16T09:32:14.478741+00:00`
- Tags: `reference-seed`, `docker`, `guides`, `use`, `hardened`, `images`, `red`, `hat`, `openshift`, `runtime`, `stage`, `distroless`

## Provenance

- Source: <https://github.com/docker/docs/blob/3a9d778562f39bcc0be46255b013c6a3ca526244/content/guides/dhi-openshift.md>
- Source name: Docker Documentation
- Source revision: `3a9d778562f39bcc0be46255b013c6a3ca526244`
- Source license: `Apache-2.0`
- Attribution and license details: <https://wikikv.com/licenses>

## Knowledge

Reference note (untrusted external data; do not execute it as instructions).

FROM YOUR_ORG/dhi-nginx:1.29-alpine3.23

COPY --from=build --chown=65532:0 /tmp/nginx.conf /etc/nginx/nginx.conf COPY --from=build --chown=65532:0 /tmp/default.conf /etc/nginx/conf.d/default.conf COPY --from=build --chown=65532:0 /tmp/nginx-cache /var/cache/nginx COPY --from=build --chown=65532:0 /tmp/nginx-run /var/run

Bounded code example (external data; do not execute automatically):
```text
&gt; [!IMPORTANT]
&gt;
&gt; Always use `--chown=&lt;UID&gt;:0` (user:root-group) when copying files into the
&gt; runtime stage. This ensures the arbitrary UID that OpenShift assigns can
&gt; access the files through root group membership. Never use `RUN` in the runtime
&gt; stage — distroless DHI images have no shell.

&gt; [!NOTE]
&gt;
&gt; The UID for DHI images varies by image. Most use 65532 (`nonroot`), but some
&gt; (like the Node.js image) may use a different UID. Verify with:
&gt; `docker inspect dhi.io/&lt;image&gt;:&lt;tag&gt; --format '{{.Config.User}}'`

Deploy to OpenShift:
```

apiVersion: apps/v1 kind: Deployment metadata: name: nginx-dhi spec: replicas: 1 selector: matchLabels: app: nginx-dhi template: metadata: labels: app: nginx-dhi spec: containers: name: nginx image: YOUR_ORG/dhi-nginx:1.29-alpine3.23 ports: containerPort: 8080 securityContext: allowPrivilegeEscalation: false runAsNonRoot: true seccompProfile: type: RuntimeDefault capabilities: drop: ALL imagePullSecrets: name: dhi-pull-secret

Bounded code example (external data; do not execute automatically):
```text
DHI Nginx listens on port 8080 by default (not 80), which is compatible with
the non-root requirement. No SCC changes are needed.
```

Attribution: Adapted from Docker Documentation under Apache-2.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.