From: Vladimír Čunát <vladimir.cunat@nic.cz>
Date: Mon, 1 Jun 2026 14:10:45 +0000 (+0200)
Subject: Dockerfile: Debian 12 -> 13
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b218a9ba60d3e1c3d206d9e10ee225a6e20e4e6b;p=thirdparty%2Fknot-resolver.git

Dockerfile: Debian 12 -> 13

Debian 12 transitions to LTS on June 11, 2026.
I'd say it's a good time to bump this default to 13,
released since August 9, 2025.
---

diff --git a/Dockerfile b/Dockerfile
index cc5e5ad96..8018bd258 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 # Intermediate container for build
-FROM debian:12 AS build
+FROM debian:13 AS build
 
 ENV OBS_REPO=knot-resolver-latest
-ENV DISTROTEST_REPO=Debian_12
+ENV DISTROTEST_REPO=Debian_13
 
 RUN apt-get update -qq && \
 	apt-get -qqq -y install \
@@ -13,7 +13,7 @@ RUN apt-get update -qq && \
 	pipx install apkg
 
 RUN wget -O /usr/share/keyrings/cznic-labs-pkg.gpg https://pkg.labs.nic.cz/gpg && \
-	echo "deb [signed-by=/usr/share/keyrings/cznic-labs-pkg.gpg] https://pkg.labs.nic.cz/knot-resolver bookworm main" \
+	echo "deb [signed-by=/usr/share/keyrings/cznic-labs-pkg.gpg] https://pkg.labs.nic.cz/knot-resolver trixie main" \
 		> /etc/apt/sources.list.d/cznic-labs-knot-resolver.list && \
 	apt-get update -qq
 
@@ -38,10 +38,10 @@ RUN cd /source && \
 	/root/.local/bin/apkg build
 
 # Real container
-FROM debian:12-slim AS runtime
+FROM debian:13-slim AS runtime
 
 ENV OBS_REPO=knot-resolver-latest
-ENV DISTROTEST_REPO=Debian_12
+ENV DISTROTEST_REPO=Debian_13
 
 RUN apt-get update -qq && \
 	apt-get -qqq -y install apt-transport-https ca-certificates
@@ -56,7 +56,7 @@ COPY --from=build \
 RUN apt-get update -qq && \
 	apt-get upgrade -qq
 
-COPY --from=build /source/pkg/pkgs/debian-12 /pkg
+COPY --from=build /source/pkg/pkgs/debian-13 /pkg
 
 # install resolver, minimize image and prepare config directory
 RUN apt-get install -y /pkg/*/*.deb && \