Update docker/dockerfile Docker tag to v1.20 (main) (#8570)

renovate[bot] · web-flow · commit 563bcfb61e89 · 2025-11-26T14:55:55.000Z
Update docker/dockerfile Docker tag to v1.20

| datasource | package           | from | to   |
| ---------- | ----------------- | ---- | ---- |
| docker     | docker/dockerfile | 1.19 | 1.20 |

Signed-off-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/build/Dockerfile b/build/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 ARG BUILD_OS=debian
 # renovate: datasource=docker depName=nginx/nginx
 ARG NGINX_OSS_VERSION=1.29.1
diff --git a/build/dependencies/Dockerfile.ubi8 b/build/dependencies/Dockerfile.ubi8
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 FROM redhat/ubi8@sha256:7d7ca86d832d1dc7aba4583414475c15686291b1c2cf75fe63ca03526c3b89ae AS rpm-build
 RUN mkdir -p /rpms/ \
     && dnf install rpm-build gcc make cmake -y \
diff --git a/build/dependencies/Dockerfile.ubi9 b/build/dependencies/Dockerfile.ubi9
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 FROM redhat/ubi9:9.6-1760340943@sha256:dec374e05cc13ebbc0975c9f521f3db6942d27f8ccdf06b180160490eef8bdbc AS rpm-build
 RUN mkdir -p /rpms/ \
     && dnf install rpm-build gcc make cmake -y \
diff --git a/tests/Dockerfile b/tests/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 FROM python:3.14-bookworm@sha256:ec171bc30122c014f83f7756fe21c4ab26d33e7c4610a63a18da2728f9ed33f8
 
 RUN apt-get update \

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# syntax=docker/dockerfile:1.19`
	`1`	`+# syntax=docker/dockerfile:1.20`
`2`	`2`	`ARG BUILD_OS=debian`
`3`	`3`	`# renovate: datasource=docker depName=nginx/nginx`
`4`	`4`	`ARG NGINX_OSS_VERSION=1.29.1`