# Copyright 2016 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

FROM ubuntu:20.04

RUN apt-get update \
	&& apt-get install -y apt dpkg apt-utils ca-certificates software-properties-common \
	&& add-apt-repository -y ppa:longsleep/golang-backports \
	&& apt-get upgrade -y \
	&& apt-get install -y \
		build-essential \
		git \
		wget \
		cpio \
		python \
		unzip \
		bc \
		gcc-multilib \
		automake \
		libtool \
		gnupg2 \
		p7zip-full \
		locales \
		rsync \
		dumb-init \
		golang-go \
		libpcre3-dev \
		mkisofs \
	&& rm -rf /var/lib/apt/lists/*

RUN localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
ENV LANG en_US.utf8

# dumb init will allow us to interrupt the build with ^C
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/bin/bash"]
