将docker映像重置为初始状态_Docker

将docker映像重置为初始状态

docker

将docker映像重置为初始状态,docker,Docker,我是docker的新手，最近我尝试使用安装程序。我尝试了手动安装，方法是克隆项目并运行docker build-t SampleMap和docker run-v openstreetmap data:/var/lib/postgresql/10/main SampleMap import，然后运行适当的命令来运行容器。我使用docker image ls获得了三张图像： ubuntu none SampleMap 一切顺利。接下来，我尝试删除数据库，并对一个新映射（另一个.osm.pbf文件）

我是docker的新手，最近我尝试使用安装程序。我尝试了手动安装，方法是克隆项目并运行

docker build-t SampleMap

和

docker run-v openstreetmap data:/var/lib/postgresql/10/main SampleMap import

，然后运行适当的命令来运行容器。我使用docker image ls获得了三张图像：

ubuntu
none
SampleMap

一切顺利。接下来，我尝试删除数据库，并对一个新映射（另一个

.osm.pbf

文件）执行整个过程。我删除了image

SampleMap

（使用

docker image rm

）并尝试再次执行整个过程，但问题是所有的DB表仍然存在。似乎所有的更改都写入了Ubuntu映像，而不是

SampleMap

。我通常会问，有没有什么方法可以将整个Ubuntu映像重置为初始状态？看起来所有的改变在Ubuntu映像中都是永久的

以下是Dockerfile：

FROM ubuntu:18.04

# Based on
# https://switch2osm.org/manually-building-a-tile-server-18-04-lts/

# Set up environment
ENV TZ=UTC
ENV AUTOVACUUM=on
ENV UPDATES=disabled
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# Install dependencies
RUN echo "deb [ allow-insecure=yes ] http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main" >> /etc/apt/sources.list.d/pgdg.list \
  && apt-get update \
  && apt-get install -y apt-transport-https ca-certificates \
  && apt-get install -y --no-install-recommends --allow-unauthenticated \
  apache2 \
  apache2-dev \
  autoconf \
  build-essential \
  bzip2 \
  cmake \
  fonts-noto-cjk \
  fonts-noto-hinted \
  fonts-noto-unhinted \
  clang \
  gdal-bin \
  git-core \
  libagg-dev \
  libboost-all-dev \
  libbz2-dev \
  libcairo-dev \
  libcairomm-1.0-dev \
  libexpat1-dev \
  libfreetype6-dev \
  libgdal-dev \
  libgeos++-dev \
  libgeos-dev \
  libgeotiff-epsg \
  libicu-dev \
  liblua5.3-dev \
  libmapnik-dev \
  libpq-dev \
  libproj-dev \
  libprotobuf-c0-dev \
  libtiff5-dev \
  libtool \
  libxml2-dev \
  lua5.3 \
  make \
  mapnik-utils \
  nodejs \
  npm \
  postgis \
  postgresql-10 \
  postgresql-10-postgis-2.5 \
  postgresql-10-postgis-2.5-scripts \
  postgresql-contrib-10 \
  protobuf-c-compiler \
  python-mapnik \
  sudo \
  tar \
  ttf-unifont \
  unzip \
  wget \
  zlib1g-dev \
  osmosis \
  osmium-tool \
  cron \
  python3-psycopg2 python3-shapely python3-lxml \
&& apt-get clean autoclean \
&& apt-get autoremove --yes \
&& rm -rf /var/lib/{apt,dpkg,cache,log}/

# Set up renderer user
RUN adduser --disabled-password --gecos "" renderer
USER renderer

# Install latest osm2pgsql
RUN mkdir /home/renderer/src
WORKDIR /home/renderer/src
RUN git clone https://github.com/openstreetmap/osm2pgsql.git
WORKDIR /home/renderer/src/osm2pgsql
RUN mkdir build
WORKDIR /home/renderer/src/osm2pgsql/build
RUN cmake .. \
  && make -j $(nproc)
USER root
RUN make install
USER renderer

# Install and test Mapnik
RUN python -c 'import mapnik'

# Install mod_tile and renderd
WORKDIR /home/renderer/src
RUN git clone -b switch2osm https://github.com/SomeoneElseOSM/mod_tile.git
WORKDIR /home/renderer/src/mod_tile
RUN ./autogen.sh \
  && ./configure \
  && make -j $(nproc)
USER root
RUN make -j $(nproc) install \
  && make -j $(nproc) install-mod_tile \
  && ldconfig
USER renderer

# Configure stylesheet
WORKDIR /home/renderer/src
RUN git clone https://github.com/gravitystorm/openstreetmap-carto.git
WORKDIR /home/renderer/src/openstreetmap-carto
USER root
RUN npm install -g carto
USER renderer
RUN carto project.mml > mapnik.xml

# Load shapefiles
WORKDIR /home/renderer/src/openstreetmap-carto
RUN scripts/get-shapefiles.py

# Configure renderd
USER root
RUN sed -i 's/renderaccount/renderer/g' /usr/local/etc/renderd.conf \
  && sed -i 's/hot/tile/g' /usr/local/etc/renderd.conf
USER renderer

# Configure Apache
USER root
RUN mkdir /var/lib/mod_tile \
  && chown renderer /var/lib/mod_tile \
  && mkdir /var/run/renderd \
  && chown renderer /var/run/renderd
RUN echo "LoadModule tile_module /usr/lib/apache2/modules/mod_tile.so" >> /etc/apache2/conf-available/mod_tile.conf \
  && a2enconf mod_tile
COPY apache.conf /etc/apache2/sites-available/000-default.conf
COPY leaflet-demo.html /var/www/html/index.html
RUN ln -sf /proc/1/fd/1 /var/log/apache2/access.log \
  && ln -sf /proc/1/fd/2 /var/log/apache2/error.log

# Configure PosgtreSQL
COPY postgresql.custom.conf.tmpl /etc/postgresql/10/main/
RUN chown -R postgres:postgres /var/lib/postgresql \
  && chown postgres:postgres /etc/postgresql/10/main/postgresql.custom.conf.tmpl \
  && echo "\ninclude 'postgresql.custom.conf'" >> /etc/postgresql/10/main/postgresql.conf

# copy update scripts
COPY openstreetmap-tiles-update-expire /usr/bin/
RUN chmod +x /usr/bin/openstreetmap-tiles-update-expire \
    && mkdir /var/log/tiles \
    && chmod a+rw /var/log/tiles \
    && ln -s /home/renderer/src/mod_tile/osmosis-db_replag /usr/bin/osmosis-db_replag \
    && echo "*  *    * * *   renderer    openstreetmap-tiles-update-expire\n" >> /etc/crontab

# install trim_osc.py helper script
USER renderer
RUN cd ~/src \
    && git clone https://github.com/zverik/regional \
    && cd regional \
    && git checkout 612fe3e040d8bb70d2ab3b133f3b2cfc6c940520 \
    && chmod u+x ~/src/regional/trim_osc.py

# Start running
USER root
COPY run.sh /
COPY indexes.sql /
ENTRYPOINT ["/run.sh"]
CMD []

EXPOSE 80 5432

这是我的

run.sh

文件：

#!/bin/bash

set -x

function CreatePostgressqlConfig()
{
  cp /etc/postgresql/10/main/postgresql.custom.conf.tmpl /etc/postgresql/10/main/postgresql.custom.conf
  sudo -u postgres echo "autovacuum = $AUTOVACUUM" >> /etc/postgresql/10/main/postgresql.custom.conf
  cat /etc/postgresql/10/main/postgresql.custom.conf
}

if [ "$#" -ne 1 ]; then
    ls /home/renderer
    echo "usage: <import|run>"
    echo "commands:"
    echo "    import: Set up the database and import /data.osm.pbf"
    echo "    run: Runs Apache and renderd to serve tiles at /tile/{z}/{x}/{y}.png"
    echo "environment variables:"
    echo "    THREADS: defines number of threads used for importing / tile rendering"
    echo "    UPDATES: consecutive updates (enabled/disabled)"
    exit 1
fi

if [ "$1" = "import" ]; then
    # Initialize PostgreSQL
    CreatePostgressqlConfig
    service postgresql start
    sudo -u postgres createuser renderer
    sudo -u postgres createdb -E UTF8 -O renderer gis
    sudo -u postgres psql -d gis -c "CREATE EXTENSION postgis;"
    sudo -u postgres psql -d gis -c "CREATE EXTENSION hstore;"
    sudo -u postgres psql -d gis -c "ALTER TABLE geometry_columns OWNER TO renderer;"
    sudo -u postgres psql -d gis -c "ALTER TABLE spatial_ref_sys OWNER TO renderer;"

    # Download Luxembourg as sample if no data is provided
    if [ ! -f /data.osm.pbf ]; then
        echo "WARNING: No import file at /data.osm.pbf, so importing iran-latest as example..."
        wget -nv http://download.geofabrik.de/north-america/canada-latest.osm.pbf -O /data.osm.pbf
        # wget -nv http://download.geofabrik.de/europe/luxembourg.poly -O /data.poly
    fi

    # determine and set osmosis_replication_timestamp (for consecutive updates)
    osmium fileinfo /data.osm.pbf > /var/lib/mod_tile/data.osm.pbf.info
    osmium fileinfo /data.osm.pbf | grep 'osmosis_replication_timestamp=' | cut -b35-44 > /var/lib/mod_tile/replication_timestamp.txt
    REPLICATION_TIMESTAMP=$(cat /var/lib/mod_tile/replication_timestamp.txt)

    # initial setup of osmosis workspace (for consecutive updates)
    sudo -u renderer openstreetmap-tiles-update-expire $REPLICATION_TIMESTAMP

    # copy polygon file if available
    if [ -f /data.poly ]; then
        sudo -u renderer cp /data.poly /var/lib/mod_tile/data.poly
    fi

    # Import data
    sudo -u renderer osm2pgsql -d gis --create --slim -G --hstore --tag-transform-script /home/renderer/src/openstreetmap-carto/openstreetmap-carto.lua -C 2048 --number-processes ${THREADS:-4} -S /home/renderer/src/openstreetmap-carto/openstreetmap-carto.style /data.osm.pbf

    # Create indexes
    sudo -u postgres psql -d gis -f indexes.sql

    service postgresql stop

    exit 0
fi

if [ "$1" = "run" ]; then
    # Clean /tmp
    rm -rf /tmp/*

    # Fix postgres data privileges
    chown postgres:postgres /var/lib/postgresql -R

    # Initialize PostgreSQL and Apache
    CreatePostgressqlConfig
    service postgresql start
    service apache2 restart

    # Configure renderd threads
    sed -i -E "s/num_threads=[0-9]+/num_threads=${THREADS:-4}/g" /usr/local/etc/renderd.conf

    # start cron job to trigger consecutive updates
    if [ "$UPDATES" = "enabled" ]; then
      /etc/init.d/cron start
    fi

    # Run
    sudo -u renderer renderd -f -c /usr/local/etc/renderd.conf
    service postgresql stop

    exit 0
fi

echo "invalid command"
exit 1

#/bin/bash
集合x
函数CreatePostgressqlConfig（）
{
cp/etc/postgresql/10/main/postgresql.custom.conf.tmpl/etc/postgresql/10/main/postgresql.custom.conf
sudo-u postgres echo“autovacuum=$autovacuum”>>/etc/postgresql/10/main/postgresql.custom.conf
cat/etc/postgresql/10/main/postgresql.custom.conf
}
如果[“$#”-ne 1]；然后
ls/home/renderer
回显“用法：”
回显“命令”：
echo“导入：设置数据库并导入/data.osm.pbf”
echo“run：运行Apache和renderd在/tile/{z}/{x}/{y}.png为tile提供服务”
echo“环境变量：”
echo“线程：定义用于导入/平铺渲染的线程数”
echo“更新：连续更新（启用/禁用）”
出口1
fi
如果[“$1”=“导入”]；然后
#初始化PostgreSQL
CreatePostgressqlConfig
postgresql启动服务
sudo-u postgres createuser渲染器
sudo-u postgres createdb-E UTF8-O渲染器
sudo-u postgres psql-dgis-c“创建扩展postgis
sudo-u postgres psql-dgis-c“创建扩展存储
sudo-u postgres psql-dgis-c“将表几何体和列所有者更改为渲染器
sudo-u postgres psql-dgis-c“将表空间参考系统所有者更改为渲染器
#如果未提供任何数据，请下载卢森堡作为示例
如果[！-f/data.osm.pbf]；然后
echo“警告：在/data.osm.pbf处没有导入文件，因此导入伊朗是最新的示例…”
wget-nvhttp://download.geofabrik.de/north-america/canada-latest.osm.pbf -O/data.osm.pbf
#wget-nvhttp://download.geofabrik.de/europe/luxembourg.poly -O/data.poly
fi
#确定并设置\u复制\u时间戳（用于连续更新）
osmium fileinfo/data.osm.pbf>/var/lib/mod_tile/data.osm.pbf.info
osmium fileinfo/data.osm.pbf | grep'perosition_replication_timestamp='| cut-b35-44>/var/lib/mod_tile/replication_timestamp.txt
复制\u时间戳=$（cat/var/lib/mod\u tile/REPLICATION\u TIMESTAMP.txt）
#渗透工作区的初始设置（用于连续更新）
sudo-u渲染器openstreetmap tiles更新过期$REPLICATION\u时间戳
#复制多边形文件（如果可用）
如果[-f/data.poly]；然后
sudo-u渲染器cp/data.poly/var/lib/mod_tile/data.poly
fi
#导入数据
sudo-u renderer osm2pgsql-dgis--create--slim-G--hstore--tag transform script/home/renderer/src/openstreetmap-carto/openstreetmap-carto/openstreetmap-carto.lua-c2048--number进程${THREADS:-4}-S/home/renderer/src/openstreetmap-carto/openstreetmap-carto.style/data.osm.pbf
#创建索引
sudo-u postgres psql-d gis-f index.sql
服务postgresql停止
出口0
fi
如果[“$1”=“运行”]；然后
#清洁/tmp
rm-rf/tmp/*
#修复postgres数据权限
chown postgres:postgres/var/lib/postgresql-R
#初始化PostgreSQL和Apache
CreatePostgressqlConfig
postgresql启动服务
服务apache2重新启动
#配置渲染线程
sed-i-E“s/num_threads=[0-9]+/num_threads=${threads:-4}/g”/usr/local/etc/renderd.conf
#启动cron作业以触发连续更新
如果[“$UPDATES”=“enabled”]；然后
/etc/init.d/cron start
fi
#跑
sudo-u渲染器renderd-f-c/usr/local/etc/renderd.conf
服务postgresql停止
出口0
fi
回显“无效命令”
出口1

从映像创建容器时，使用

-v

选项装入卷：

docker运行-v openstreetmap数据：/var/lib/postgresql/10/main SampleMap导入

持久数据存储在

openstreetmap data

中。该文件/文件夹不在容器中（每次都创建），而是从主机的文件系统装入的。这就是它持续存在的原因

docker volume rm openstreetmap数据

然后重新创建容器如果将PostgreSQL、Apache前端和更新作业拆分为单独的容器，这类问题通常会更容易推理，脚本也会简单得多。