From 8a47e7db11b8b69a43d4beef318bc2aba8dec500 Mon Sep 17 00:00:00 2001
From: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>
Date: Fri, 10 Dec 2021 23:24:46 +0100
Subject: [PATCH] chore(image): Update Debian base image to Debian 11
 "Bullseye" (#2116)

---
 Dockerfile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 4e655735..4e8a7c63 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/debian:buster-slim
+FROM docker.io/debian:11-slim
 
 ARG VCS_VER
 ARG VCS_REF
@@ -38,8 +38,6 @@ SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 # -----------------------------------------------
 
 RUN \
-  # Backport repo for dovecot-fts-xapian package. This can be removed once Debian 11 is used as base image.
-  echo 'deb http://deb.debian.org/debian buster-backports main' > /etc/apt/sources.list.d/buster-backports.list && \
   apt-get -qq update && \
   apt-get -qq install apt-utils 2>/dev/null && \
   apt-get -qq dist-upgrade && \