pvc-ansible/roles/base/templates/usr/local/sbin/update-motd.sh.j2

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#!/bin/bash
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# Update dynamic MOTD file
# {{ ansible_managed }}
set -o errexit
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# Title-case generator
tc() { set ${*,,} ; echo ${*^} ; }
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TMPFILE=$(mktemp)
TGTFILE=/run/pvc-motd.dynamic
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NAME="$( grep '^NAME=' /etc/os-release | awk -F'"' '{ print $2 }' )"
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VERSION_ID="$( cat /etc/debian_version )"
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VERSION_CODENAME="$( grep '^VERSION_CODENAME=' /etc/os-release | awk -F'=' '{ print $2 }' )"
DEBVER="${NAME} ${VERSION_ID} \"$(tc ${VERSION_CODENAME} )\""
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echo >> $TMPFILE
echo -e "\033[01;34mParallel Virtual Cluster \033[01;36m(${DEBVER})\033[0m" >> $TMPFILE
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echo -e "> PVC \033[1;36m{% if is_coordinator %}coordinator{% else %}hypervisor{% endif %}\033[0m node \033[01;36m$(hostname)\033[0m" >> $TMPFILE
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# Get machine information
HARDWARE_DETAIL="$( /usr/sbin/dmidecode | grep -A7 'System Information' )"
HARDWARE_VENDOR="$( grep 'Manufacturer:' <<<"${HARDWARE_DETAIL}" | sed 's/Manufacturer: //; s/\s*$//g; s/^\s*//g' )"
if [[ -z ${HARDWARE_VENDOR} ]]; then
HARDWARE_VENDOR="Unknown"
fi
HARDWARE_MODEL="$( grep 'Product Name:' <<<"${HARDWARE_DETAIL}" | sed 's/Product Name: //; s/\s*$//g; s/^\s*//g' )"
if [[ -z ${HARDWARE_MODEL} ]]; then
HARDWARE_MODEL="Unknown"
fi
HARDWARE_SERIAL="$( grep 'Serial Number:' <<<"${HARDWARE_DETAIL}" | sed 's/Serial Number: //; s/\s*$//g; s/^\s*//g' )"
if [[ -z ${HARDWARE_SERIAL} ]]; then
HARDWARE_SERIAL="Unknown"
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fi
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echo -e "> Hardware Vendor: \033[1;36m${HARDWARE_VENDOR}\033[0m Model: \033[1;36m${HARDWARE_MODEL}\033[0m Serial: \033[1;36m${HARDWARE_SERIAL}\033[0m" >> $TMPFILE
echo -e "> $(/bin/uname -srvmo)" >> $TMPFILE
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mv $TMPFILE $TGTFILE || rm $TMPFILE