content: #
  # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you 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.
  #
  
  
  # Based on PolarDB with PostgreSQL 11.9
  FROM polardb/polardb_pg_local_instance:latest
  
  # LABEL maintainer="Naili Xing <xingnaili14@gmai.com>"
  
  # Install Python, Vim, and necessary libraries
  # Note: The 'pip' package might not be directly available like this, usually python3-pip is the package name.
  USER root
  RUN apt-get update && apt-get install -y \
      python3-pip \
      bzip2 \
      libbz2-dev \
      build-essential \
      libffi-dev \
      libssl-dev \
      zlib1g-dev \
      libbz2-dev \
      libreadline-dev \
      libsqlite3-dev \
      wget \
      llvm \
      libncursesw5-dev \
      xz-utils \
      tk-dev \
      libxml2-dev \
      libxmlsec1-dev \
      liblzma-dev \
      && rm -rf /var/lib/apt/lists/*
  
  USER postgres
  # Install pyenv and Python 3.8
  RUN curl https://pyenv.run | bash \
      && export PYENV_ROOT="$HOME/.pyenv" \
      && export PATH="$PYENV_ROOT/bin:$PATH" \
      && eval "$(pyenv init --path)" \
      && eval "$(pyenv init -)" \
      && env PYTHON_CONFIGURE_OPTS="--enable-shared" pyenv install 3.8
  
  
  # Switch to the postgres user, install Rust, init the cargo
  # polarDB uses the pg 11.9
  RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && \
      echo 'source $HOME/.cargo/env' >> $HOME/.bashrc && \
      /bin/bash -c "source $HOME/.cargo/env && cargo install cargo-pgrx --version '0.9.7' --locked" && \
      /bin/bash -c "source $HOME/.cargo/env && cargo pgrx init --pg11 /home/postgres/tmp_basedir_polardb_pg_1100_bld/bin/pg_config"
  
  
  # Clone code to there, install dependences,
  WORKDIR /home/postgres
  RUN mkdir Trails && \
      cd Trails && \
      git init && \
      git remote add origin https://github.com/apache/singa.git && \
      git config core.sparseCheckout true && \
      echo "examples/model_selection/Trails/*" > .git/info/sparse-checkout && \
      git pull --depth=1 origin dev-postgresql && \
      mv examples/model_selection/Trails/* . && \
      rm -rf examples && \
      cp ./internal/pg_extension/template/Cargo.pg14.toml ./internal/pg_extension/Cargo.toml && \
      cd ./internal/ml/model_selection && \
      pip install -r requirement.txt && \
      pip install https://singa-wheel.s3.ap-southeast-1.amazonaws.com/tmp/singa-3.1.0-cp38-cp38-manylinux2014_x86_64.whl
  
  
  WORKDIR /home/postgres/Trails/internal/pg_extension
  RUN /bin/bash -c "source $HOME/.cargo/env && cargo pgrx install --pg-config /home/postgres/tmp_basedir_polardb_pg_1100_bld/bin/pg_config"
  
  WORKDIR /home/postgres
  RUN chmod +x ./Trails/init_polardb.sh
  # here we run the default script in /home/postgres
  