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168 lines
3.1 KiB
Bash
Executable File
168 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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# Author: GONG Jie <neo@linux.vnet.ibm.com>
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# Create: 2016-10-17
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# Update: 2016-10-21
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# Version: 1.3.0
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#
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# warn_if_bad Put out warning message(s) if $1 has bad RC.
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#
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# $1 0 (pass) or non-zero (fail).
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# $2+ Remaining arguments printed only if the $1 is non-zero.
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#
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# Incoming $1 is returned unless it is 0
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#
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function warn_if_bad()
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{
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local -i rc="$1"
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local script="${0##*/}"
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# Ignore if no problems
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[ "${rc}" -eq "0" ] && return 0
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# Broken
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shift
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echo "${script}: $@" >&2
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return "${rc}"
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}
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#
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# exit_if_bad Put out error message(s) if $1 has bad RC.
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#
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# $1 0 (pass) or non-zero (fail).
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# $2+ Remaining arguments printed only if the $1 is non-zero.
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#
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# Exits with 1 unless $1 is 0
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#
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function exit_if_bad()
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{
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warn_if_bad "$@" || exit 1
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return 0
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}
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#
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# check_root_or_break
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#
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# Breaks the script if not running as root.
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#
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# If this returns 1, the invoker MUST abort the script.
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#
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# returns 0 if running as root
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# returns 1 if not (and breaks the script)
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#
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function check_root_or_exit()
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{
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[ "${UID}" -eq "0" ]
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exit_if_bad "$?" "Must be run by UID=0. Actual UID=${UID}."
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return 0
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}
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#
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# check_executes Check for executable(s)
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#
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# Returns 0 if true.
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# Returns 1 if not.
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#
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function check_executes()
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{
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local cmd
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local all_ok="yes"
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for cmd in "$@"
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do
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if ! type "${cmd}" &>/dev/null
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then
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echo "Command \"${cmd}\" not found" >&2
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all_ok="no"
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fi
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done
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[ "${all_ok}" = "yes" ]
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}
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#
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# check_exec_or_exit Check for required executables.
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#
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# Exits (not returns) if commands listed on command line do not exist.
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#
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# Returns 0 if true.
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# Exits with 1 if not.
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#
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function check_exec_or_exit()
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{
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check_executes "$@"
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exit_if_bad "$?" "Above listed required command(s) not found"
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return 0
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}
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#
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# internal_setup Script setup
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#
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# Returns 0 on success.
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# Exits (not returns) with 1 on failure.
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#
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function internal_setup()
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{
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# Trap exit for internal_cleanup function.
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trap "internal_cleanup" 0
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umask 0077
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check_exec_or_exit cat cpio find grep tail tee touch xargs
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}
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#
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# internal_cleanup Script cleanup (reached via trap 0)
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#
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# Destory any temporarily facility created by internal_setup.
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#
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function internal_cleanup()
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{
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custom_cleanup
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}
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function custom_cleanup()
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{
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rm -rf "/install/netboot/testing0000"
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}
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PATH="/opt/xcat/bin:/opt/xcat/sbin:/bin:/sbin:/usr/bin:/usr/sbin"
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OSIMAGE="$(lsdef -t osimage | grep -- -netboot-compute | head -n 1)"
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[ -n "${OSIMAGE}" ]
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exit_if_bad "$?" "Diskless osimage not found"
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lsdef -t osimage "${OSIMAGE}" -z | sed -e 's/^.*:$/compute_9999z/' | mkdef -z
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# The new osimage name is compute_9999z
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OSIMAGE="compute_9999z"
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lsdef -t osimage "${OSIMAGE}"
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exit_if_bad "$?" "Diskless osimage ${OSIMAGE} not created"
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chdef -t osimage "${OSIMAGE}" "rootimgdir=/install/netboot/testing0000/${OSIMAGE}"
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exit_if_bad "$?" "Command chdef failed"
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genimage "${OSIMAGE}" &
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CHILD="$!"
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sleep 1
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kill -0 "${CHILD}"
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exit_if_bad "$?" "Process not found"
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kill -SIGINT "${CHILD}"
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exit_if_bad "$?" "Send SIGINT failed"
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sleep 2
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ps axo comm | grep genimage
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[ "$?" -ne "0" ]
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exit_if_bad "$?" "Still running 000"
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ps axo pgrp | grep "${CHILD}"
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[ "$?" -ne "0" ]
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exit_if_bad "$?" "Still running 001"
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exit 0
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