content: # Copyright 2025 Google LLC
  #
  # 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.
  #
  ################################################################################
  
  # Base image for all other images.
  
  ARG parent_image=ubuntu:20.04@sha256:4a45212e9518f35983a976eead0de5eecc555a2f047134e9dd2cfc589076a00d
  
  FROM $parent_image
  
  ENV DEBIAN_FRONTEND noninteractive
  # Install tzadata to match ClusterFuzz
  # (https://github.com/google/oss-fuzz/issues/9280).
  
  RUN apt-get update && \
      apt-get upgrade -y && \
      apt-get install -y libc6-dev binutils libgcc-9-dev tzdata && \
      apt-get autoremove -y
  
  ENV OUT=/out
  ENV SRC=/src
  ENV WORK=/work
  ENV PATH="$PATH:/out"
  ENV HWASAN_OPTIONS=random_tags=0
  
  RUN mkdir -p $OUT $SRC $WORK && chmod a+rwx $OUT $SRC $WORK
  