Autodeploy script Post: 302791579

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Top Forums Shell Programming and Scripting Autodeploy script Post 302791579 by ridham on Monday 8th of April 2013 06:00:39 PM

04-08-2013

Registered User

Autodeploy script

Hi All!

I am managing databases on handful of servers and standardizing some of the scripts. In order to copy/deploy new version of script I have established passwordless SSH among all the servers and most importantly from my base server.

I developed a simple script that should copy a given file to the list of the servers listed in a list - ASCII Text - file.

Here is the script code:

Code:

#!/bin/ksh
set -x
export BKP_SCRIPT=~/scripts/common/bkp_existing.sh
if [ $# -lt 4 ]; then
   echo ""
   echo "Usage: $0 <SourceDirectory> <SourceFileName> <TargetDirectory> <TargetFileName>"
   echo ""
   exit 1
fi
export SRC_DIR=$1
export SRC_FILE=$2
export TRGT_DIR=$3
export TRGT_FILE=$4
export TRGT_SRVR_LIST=${SRC_DIR}/deploy_trgt_srvr.list
if [ -s ${TRGT_SRVR_LIST} -a  -s ${SRC_DIR}/${SRC_FILE}  ]; then
   echo "Continue..."
else
   echo "Validate source file: ${SRC_DIR}/${SRC_FILE}  as well as  list file: ${TRGT_SRVR_LIST} exists"
   exit 2
fi
cat ${TRGT_SRVR_LIST} | while read RMT_HOST_NAME
do
 echo ${RMT_HOST_NAME}
 scp -p ${BKP_SCRIPT} ${RMT_HOST_NAME}:${BKP_SCRIPT}
 ssh ${RMT_HOST_NAME} ${BKP_SCRIPT} ${TRGT_DIR}/${TRGT_FILE}
 scp -p ${SRC_DIR}/${SRC_FILE} ${RMT_HOST_NAME}:${TRGT_DIR}/${TRGT_FILE}
done

If I comment out the scp and ssh command it traverse through all the servers listed in the list file. If not then it process only first line and then stops. I used "set -x" and last line it executes is: "read RMT_HOST_NAME"

Any insights will be most appreciated.

ridham

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service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service	runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
       working directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script.  service passes COMMAND and OPTIONS to the init script unmodified.  All scripts should support at least the start and stop
       commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start  com-
       mand.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton,
       update-rc.d(8),
       init(8),
       invoke-rc.d(8).

								     Jan 2006								service(8)