It is good practice to use an explicit registry for referencing the base image. This is because some distros will inject their own registries into the search path. For example registry.fedoraproject.org comes ahead of docker.io. Using an explicit registry avoids wasting time querying multiple registries for images that they won't have.
Reviewed-by: Wainer dos Santos Moschetta <waine...@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com> Signed-off-by: Daniel P. Berrangé <berra...@redhat.com> --- tests/docker/dockerfiles/centos8.docker | 2 +- tests/docker/dockerfiles/debian-xtensa-cross.docker | 2 +- tests/docker/dockerfiles/debian10.docker | 2 +- tests/docker/dockerfiles/debian11.docker | 2 +- tests/docker/dockerfiles/ubuntu.docker | 2 +- tests/docker/dockerfiles/ubuntu1804.docker | 2 +- tests/docker/dockerfiles/ubuntu2004.docker | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/tests/docker/dockerfiles/centos8.docker b/tests/docker/dockerfiles/centos8.docker index 92c0ed34b8..4f77c754e2 100644 --- a/tests/docker/dockerfiles/centos8.docker +++ b/tests/docker/dockerfiles/centos8.docker @@ -1,4 +1,4 @@ -FROM centos:8.3.2011 +FROM docker.io/centos:8 RUN dnf -y update ENV PACKAGES \ diff --git a/tests/docker/dockerfiles/debian-xtensa-cross.docker b/tests/docker/dockerfiles/debian-xtensa-cross.docker index ba4148299c..2f11b3b7bc 100644 --- a/tests/docker/dockerfiles/debian-xtensa-cross.docker +++ b/tests/docker/dockerfiles/debian-xtensa-cross.docker @@ -5,7 +5,7 @@ # using a prebuilt toolchains for Xtensa cores from: # https://github.com/foss-xtensa/toolchain/releases # -FROM debian:stretch-slim +FROM docker.io/library/debian:stretch-slim RUN apt-get update && \ DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \ diff --git a/tests/docker/dockerfiles/debian10.docker b/tests/docker/dockerfiles/debian10.docker index d034acbd25..ad9c128370 100644 --- a/tests/docker/dockerfiles/debian10.docker +++ b/tests/docker/dockerfiles/debian10.docker @@ -7,7 +7,7 @@ # On its own you can't build much but the docker-foo-cross targets # build on top of the base debian image. # -FROM debian:buster-slim +FROM docker.io/library/debian:buster-slim # Duplicate deb line as deb-src RUN cat /etc/apt/sources.list | sed "s/^deb\ /deb-src /" >> /etc/apt/sources.list diff --git a/tests/docker/dockerfiles/debian11.docker b/tests/docker/dockerfiles/debian11.docker index 5adfd62d55..febf884f8f 100644 --- a/tests/docker/dockerfiles/debian11.docker +++ b/tests/docker/dockerfiles/debian11.docker @@ -8,7 +8,7 @@ # On its own you can't build much but the docker-foo-cross targets # build on top of the base debian image. # -FROM debian:bullseye-slim +FROM docker.io/library/debian:bullseye-slim # Duplicate deb line as deb-src RUN cat /etc/apt/sources.list | sed "s/^deb\ /deb-src /" >> /etc/apt/sources.list diff --git a/tests/docker/dockerfiles/ubuntu.docker b/tests/docker/dockerfiles/ubuntu.docker index 9dec1c4bc6..ef44b0e360 100644 --- a/tests/docker/dockerfiles/ubuntu.docker +++ b/tests/docker/dockerfiles/ubuntu.docker @@ -9,7 +9,7 @@ # system won't pick up that it has changed. # -FROM ubuntu:20.04 +FROM docker.io/library/ubuntu:20.04 ENV PACKAGES \ ccache \ clang \ diff --git a/tests/docker/dockerfiles/ubuntu1804.docker b/tests/docker/dockerfiles/ubuntu1804.docker index aacea8627a..751e6503f8 100644 --- a/tests/docker/dockerfiles/ubuntu1804.docker +++ b/tests/docker/dockerfiles/ubuntu1804.docker @@ -1,4 +1,4 @@ -FROM ubuntu:18.04 +FROM docker.io/library/ubuntu:18.04 ENV PACKAGES \ ccache \ clang \ diff --git a/tests/docker/dockerfiles/ubuntu2004.docker b/tests/docker/dockerfiles/ubuntu2004.docker index 7f32990bcd..0e761f4553 100644 --- a/tests/docker/dockerfiles/ubuntu2004.docker +++ b/tests/docker/dockerfiles/ubuntu2004.docker @@ -1,4 +1,4 @@ -FROM ubuntu:20.04 +FROM docker.io/library/ubuntu:20.04 ENV PACKAGES flex bison \ bsdmainutils \ ccache \ -- 2.31.1
