Question

我想将mysql数据库停靠。我有.sh脚本用于准备环境，创建数据库，用户和其他东西。 Mysql dump restore命令在我的.sh脚本中不起作用，但如果我在其中打开容器shell和exec命令，则工作正常。我想在我的.sh脚本中使用work命令。

我的剧本有什么问题？

Dockerfile：

FROM alpine:latest

WORKDIR /app
COPY startup.sh /startup.sh

COPY backup.sql /app/

RUN apk add --update mysql mysql-client && rm -f /var/cache/apk/*
COPY my.cnf /etc/mysql/my.cnf

EXPOSE 3306

startup.sh：

#!/bin/sh

if [ -d /app/mysql ]; then
  echo "[i] MySQL directory already present, skipping creation"
else
  echo "[i] MySQL data directory not found, creating initial DBs"

  mysql_install_db --user=root > /dev/null

  if [ "$MYSQL_ROOT_PASSWORD" = "" ]; then
    MYSQL_ROOT_PASSWORD=111111
    echo "[i] MySQL root Password: $MYSQL_ROOT_PASSWORD"
  fi

  MYSQL_DATABASE=myDb

  if [ ! -d "/run/mysqld" ]; then
    mkdir -p /run/mysqld
  fi

  tfile=`mktemp`
  if [ ! -f "$tfile" ]; then
      return 1
  fi

  cat << EOF > $tfile
EOF

  if [ "$MYSQL_DATABASE" != "" ]; then
    echo "[i] Creating database: $MYSQL_DATABASE"
    echo "FLUSH PRIVILEGES;" >> $tfile
    echo "CREATE DATABASE IF NOT EXISTS $MYSQL_DATABASE CHARACTER SET utf8 COLLATE utf8_general_ci;" >> $tfile
    echo "CREATE DATABASE IF NOT EXISTS $MYSQL_DATABASE CHARACTER SET utf8 COLLATE utf8_general_ci;"

    echo "CREATE USER 'myuser'@'localhost' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';" >> $tfile
    echo "CREATE USER 'myuser'@'localhost' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';"

    echo "CREATE USER 'myuser'@'%' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';" >> $tfile
    echo "CREATE USER 'myuser'@'%' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';"

    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'localhost' WITH GRANT OPTION;" >> $tfile
    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'localhost' WITH GRANT OPTION;"

    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'%' WITH GRANT OPTION;" >> $tfile
    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'%' WITH GRANT OPTION;"


    echo "FLUSH PRIVILEGES;" >> $tfile
  fi

  /usr/bin/mysqld --user=root --bootstrap --verbose=0 < $tfile
  rm -f $tfile
fi



exec /usr/bin/mysqld --user=root --console

mysql -u root myDb < backup.sql # THIS LINE NOT WORKING! WHY ?

Answer 1

容器启动时，您实际上并未执行脚本。我不确定你要用这个来完成什么，我不应该要求澄清，所以我会尽可能地回答并希望这会有所帮助。

尝试类似：

<强> Dockerfile

FROM alpine:latest

WORKDIR /app
COPY startup.sh /startup.sh

COPY backup.sql /app/

RUN apk add --update mysql mysql-client && rm -f /var/cache/apk/*
COPY my.cnf /etc/mysql/my.cnf 

EXPOSE 3306

ENTRYPOINT ["/startup.sh"]
CMD /bin/bash -c "/usr/bin/mysqld --user=root --console && mysql -u root myDb < backup.sql"

然后，您将修改您的启动脚本，如下所示：

<强> startup.sh

#!/bin/sh

if [ -d /app/mysql ]; then
  echo "[i] MySQL directory already present, skipping creation"
else
  echo "[i] MySQL data directory not found, creating initial DBs"

  mysql_install_db --user=root > /dev/null

  if [ "$MYSQL_ROOT_PASSWORD" = "" ]; then
    MYSQL_ROOT_PASSWORD=111111
    echo "[i] MySQL root Password: $MYSQL_ROOT_PASSWORD"
  fi

  MYSQL_DATABASE=myDb

  if [ ! -d "/run/mysqld" ]; then
    mkdir -p /run/mysqld
  fi

  tfile=`mktemp`
  if [ ! -f "$tfile" ]; then
      return 1
  fi

  cat << EOF > $tfile
EOF

  if [ "$MYSQL_DATABASE" != "" ]; then
    echo "[i] Creating database: $MYSQL_DATABASE"
    echo "FLUSH PRIVILEGES;" >> $tfile
    echo "CREATE DATABASE IF NOT EXISTS $MYSQL_DATABASE CHARACTER SET utf8 COLLATE utf8_general_ci;" >> $tfile
    echo "CREATE DATABASE IF NOT EXISTS $MYSQL_DATABASE CHARACTER SET utf8 COLLATE utf8_general_ci;"

    echo "CREATE USER 'myuser'@'localhost' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';" >> $tfile
    echo "CREATE USER 'myuser'@'localhost' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';"

    echo "CREATE USER 'myuser'@'%' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';" >> $tfile
    echo "CREATE USER 'myuser'@'%' IDENTIFIED BY '2E7A80BFD6Cwdct5q4i1r9l3';"

    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'localhost' WITH GRANT OPTION;" >> $tfile
    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'localhost' WITH GRANT OPTION;"

    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'%' WITH GRANT OPTION;" >> $tfile
    echo "GRANT ALL PRIVILEGES ON * . * TO 'myuser'@'%' WITH GRANT OPTION;"


    echo "FLUSH PRIVILEGES;" >> $tfile
  fi

  /usr/bin/mysqld --user=root --bootstrap --verbose=0 < $tfile
  rm -f $tfile
fi

exec "$@"

了解official mysql Docker image repo中Dockerfile和docker-entrypoint.sh的设置方式。

Answer 2

尝试使用直升机进行Docker Container的备份和还原。

https://github.com/frekele/helicopterizer

为什么mysql备份没有恢复到我的docker容器中？

2 个答案: