RPM％post scriptlet最佳實踐

Question

我正在嘗試追蹤rpm.spec文件中％pre /％post scriptlets的最佳做法。

具體而言，我有一個系統，有一個非常複雜的安裝。除其他事項外，它需要做大量的「安全增強Linux」自定義，iptable的編輯，創建用戶（使用密碼）和「CHOWN」 -ing等

的問題是在哪裏做呢？這應該放入前/後腳本？最好的做法似乎是保持這些爲simple as possible and definitely don't make it interactive。

我注意到Postgres安裝程序（和其他一些）執行「手動安裝後」步驟，其中root用戶需要運行腳本來執行某些操作，例如設置postgres用戶的密碼等。您可以在下面看到它其中的rpm打印這樣的：To initialize, run /etc/init.d/postgres-9.1-openscg start as root user.

下面是所提取的小腳本：

rpm -qp --scripts postgres-9.1.2-1.i386.openscg.rpm 

預安裝的scriptlet（使用/ bin/sh的）：

if [ "$1" = "2" ]; then 
    #Perform maintenance tasks before server upgrade begins. 
    #Determine if server is running, stops it. 
    /etc/init.d/postgres-9.1-openscg status &> /dev/null 
    if [ "$?" = "0" ]; 
    then 
    /etc/init.d/postgres-9.1-openscg stop 
    touch /tmp/pg_9.1.stopped 
    fi 
fi 

安裝後的scriptlet（使用/ bin/sh的）：

if type "/usr/bin/chcon" &> /dev/null ; then 
    /usr/bin/chcon -t textrel_shlib_t $RPM_INSTALL_PREFIX/lib/libedit.so &> /dev/null 
fi 

#Create a soft link to init script 
if [ ! -f /etc/init.d/postgres-9.1-openscg ] 
then 
    ln -s $RPM_INSTALL_PREFIX/bin/postgres-9.1-openscg /etc/init.d/postgres-9.1-openscg 
fi 


#In case of upgrade, dump environment values file 
#if [ "$1" = "2" ]; 
#then 
    #Fix for psql dumb terminal issue 
    LD_PRELOAD_VALUE="" 
    for libreadline in `find -L /lib -type f -name libreadline.\* 2> /dev/null` 
    do 
    LD_PRELOAD_VALUE="$libreadline:$LD_PRELOAD_VALUE" 
    done 
    if [ x"$LD_PRELOAD_VALUE" != x"" ]; 
    then 
    LD_PRELOAD_VALUE="export LD_PRELOAD=$LD_PRELOAD_VALUE" 
    fi 

    #Dump environment values 
cat <<ENVEOF > $RPM_INSTALL_PREFIX/pg91-openscg.env 
#!/bin/bash 
$LD_PRELOAD_VALUE 
export PGHOME=$RPM_INSTALL_PREFIX 
export PGDATA=$RPM_INSTALL_PREFIX/data 
export PATH=$RPM_INSTALL_PREFIX/bin:\$PATH 
export LD_LIBRARY_PATH=$RPM_INSTALL_PREFIX/lib:\$LD_LIBRARY_PATH 
export PGUSER=postgres 
export PGDATABASE=postgres 
ENVEOF 

#Determine port from postgresql.conf 
PGPORT_VALUE="" 
if [ -f $RPM_INSTALL_PREFIX/data/postgresql.conf ]; then 
    PGPORT_VALUE=`grep "port =" $RPM_INSTALL_PREFIX/data/postgresql.conf | sed -e  "s/^.*port[[:space:]]=[[:space:]]\([0-9]\+\).*$/\1/"` 
    PGPORT_VALUE="export PGPORT=$PGPORT_VALUE" 
    cat <<ENVEOF >> $RPM_INSTALL_PREFIX/pg91-openscg.env 
$PGPORT_VALUE 
ENVEOF 
fi 

#fi 

# If it is an upgrade, and we stopped a running server, start it. 
if [ "$1" = "2" -a -f /tmp/pg_9.1.stopped ]; 
then 
    rm /tmp/pg_9.1.stopped 
    /etc/init.d/postgres-9.1-openscg start 
fi 

if [ "$1" = "1" ]; 
then 
    echo "PostgreSQL 9.1 is now installed in $RPM_INSTALL_PREFIX." 
    echo 
    echo "To initialize, run /etc/init.d/postgres-9.1-openscg start" 
    echo "as root user." 
fi 
if [ "$1" = "2" ]; 
then 
    echo "PostgreSQL 9.1 is upgraded in $RPM_INSTALL_PREFIX." 
fi 

preuninstall scriptlet的（使用/ bin/sh的）：

if [ "$1" = "0" ]; then 
    #Action is uninstallation, not called due to upgrade of a new package 

    #Determine if server is running, stops it. 
    /etc/init.d/postgres-9.1-openscg status &> /dev/null 
    if [ "$?" = "0" ]; 
    then 
    echo "Attempting to stop server..." 
    /etc/init.d/postgres-9.1-openscg stop 
    fi 

    echo "Attempting to update server startup status..." 
    if type "/sbin/chkconfig" &> /dev/null ; then 
    /sbin/chkconfig --del postgres-9.1-openscg 
    fi 
fi 

postuninstall scriptlet的（使用/ bin/sh的）：

if [ "$1" = "0" ]; then 
    #Action is uninstallation, not called due to upgrade of a new package 
    rm /etc/init.d/postgres-9.1-openscg 
    echo "Uninstallation complete." 
fi 

Answer 1

如果您認爲RPM安裝時與用戶交互相關的最佳做法，則毫無疑問。不要這樣做。做任何不需要腳本中的用戶交互，並告訴用戶在安裝後運行腳本，或者在應用程序的第一次運行中獲取所有信息。