[PATCH v1 17/25] tests/docker: update and flatten debian-all-test-cross

[Alex Bennée]

Update to the latest stable Debian. While we are at it flatten into a
single dockerfile. We also need to ensure we install clang as it is
used for those builds as well.

It would be nice to port this to lcitool but for now this will do.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 .gitlab-ci.d/container-cross.yml               |  1 -
 tests/docker/Makefile.include                  |  1 -
 .../dockerfiles/debian-all-test-cross.docker   | 18 ++++++++++++++----
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/.gitlab-ci.d/container-cross.yml b/.gitlab-ci.d/container-cross.yml
index 3a8bd75473..091c0d8fcb 100644
--- a/.gitlab-ci.d/container-cross.yml
+++ b/.gitlab-ci.d/container-cross.yml
@@ -14,7 +14,6 @@ amd64-debian-cross-container:
 amd64-debian-user-cross-container:
   extends: .container_job_template
   stage: containers
-  needs: ['amd64-debian10-container']
   variables:
     NAME: debian-all-test-cross
 
diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 24cd44e667..ddcc502049 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -129,7 +129,6 @@ docker-image-debian-nios2-cross: 
$(DOCKER_FILES_DIR)/debian-toolchain.docker \
        $(call debian-toolchain, $@)
 
 # Specialist build images, sometimes very limited tools
-docker-image-debian-all-test-cross: docker-image-debian10
 docker-image-debian-loongarch-cross: docker-image-debian11
 docker-image-debian-microblaze-cross: docker-image-debian10
 docker-image-debian-nios2-cross: docker-image-debian10
diff --git a/tests/docker/dockerfiles/debian-all-test-cross.docker 
b/tests/docker/dockerfiles/debian-all-test-cross.docker
index dedcea58b4..508a914c22 100644
--- a/tests/docker/dockerfiles/debian-all-test-cross.docker
+++ b/tests/docker/dockerfiles/debian-all-test-cross.docker
@@ -6,11 +6,21 @@
 # basic compilers for as many targets as possible. We shall use this
 # to build and run linux-user tests on GitLab
 #
-FROM qemu/debian10
+FROM docker.io/library/debian:11-slim
 
-# What we need to build QEMU itself
-RUN apt update && \
-    DEBIAN_FRONTEND=noninteractive eatmydata \
+# Duplicate deb line as deb-src
+RUN cat /etc/apt/sources.list | sed "s/^deb\ /deb-src /" >> 
/etc/apt/sources.list
+
+RUN export DEBIAN_FRONTEND=noninteractive && \
+    apt-get update && \
+    apt-get install -y eatmydata && \
+    eatmydata apt-get dist-upgrade -y && \
+    apt install -y --no-install-recommends \
+      ccache \
+      clang  \
+      git \
+      ninja-build \
+    && \
     apt build-dep -yy qemu
 
 # Add the foreign architecture we want and install dependencies
-- 
2.30.2