Jérémy Lecour
1b29f2d793
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241 lines
8.3 KiB
Bash
241 lines
8.3 KiB
Bash
#!/bin/bash
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# Exit codes :
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# - 30 : $skip_releases or $skip_packages is set to "all"
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# - 40 : current release is in $skip_releases list
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# - 50 : all upgradable packages are in the $skip_packages list
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# - 60 : current release is not in the $r_releases list
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# - 70 : at least an upgradable package is not in the $r_packages list
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set -e
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configFile="/etc/evolinux/listupgrade.cnf"
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packages=$(mktemp --tmpdir=/tmp evoupdate.XXX)
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packagesHold=$(mktemp --tmpdir=/tmp evoupdate.XXX)
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servicesToRestart=$(mktemp --tmpdir=/tmp evoupdate.XXX)
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template=$(mktemp --tmpdir=/tmp evoupdate.XXX)
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clientmail=$(grep EVOMAINTMAIL /etc/evomaintenance.cf | cut -d'=' -f2)
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mailto=$clientmail
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date="Ce jeudi entre 18h00 et 23h00."
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hostname=$(grep HOSTNAME /etc/evomaintenance.cf | cut -d'=' -f2)
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hostname=${hostname%%.evolix.net}
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# If hostname is composed with -, remove the first part.
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if [[ $hostname =~ "-" ]]; then
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hostname=$(echo $hostname | cut -d'-' -f2-)
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fi
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# Edit $configFile to override some variables.
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[ -r $configFile ] && . $configFile
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# Remove temporary files on exit.
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trap "rm $packages $packagesHold $servicesToRestart $template" EXIT
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# Parse line in retrieved upgrade file and ensure there is no malicious values.
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get_value() {
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file="$1"
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variable="$2"
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value="$(grep "^$2:" $1 |head -n 1 |cut -d ':' -f 2 |sed 's/^ //')"
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if echo "$value" |grep -q -E '^[-.: [:alnum:]]*$'; then
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echo $value
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else
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printf >&2 "Error parsing value \"$value\" for variable $variables.\n"
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fi
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}
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# Fetch which packages/releases will be upgraded.
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fetch_upgrade_info() {
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upgradeInfo=$(mktemp --tmpdir=/tmp evoupdate.XXX)
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wget -q -O $upgradeInfo https://upgrades.evolix.org/upgrade
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r_releases="$(get_value $upgradeInfo "releases")"
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r_skip_releases="$(get_value $upgradeInfo "skip_releases")"
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r_packages="$(get_value $upgradeInfo "packages")"
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r_skip_packages="$(get_value $upgradeInfo "skip_packages")"
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rm $upgradeInfo
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}
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# Check if element $element is in (space separated) list $list.
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is_in() {
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list="$1"
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element="$2"
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for i in $list; do
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if [ "$element" = "$i" ]; then
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return 0
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fi
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done
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return 1
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}
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if [[ "$1" != "--cron" ]]; then
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echo "À quel date/heure allez vous planifier l'envoi ?"
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echo "Exemple : le jeudi 6 mars entre 18h00 et 23h00"
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echo -n ">"
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read date
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echo "À qui envoyer le mail ?"
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echo -n ">"
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read mailto
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fi
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# Update APT cache and get packages to upgrade and packages on hold.
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aptUpdateOutput=$(apt update 2>&1 | (egrep -ve '^(Listing|WARNING|$)' -e upgraded -e 'up to date' || true ))
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if (echo "$aptUpdateOutput" | egrep "^Err(:[0-9]+)? http"); then
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echo "FATAL - Not able to fetch all sources (probably a pesky (mini)firewall). Please, fix me"
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exit 100
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fi
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apt-mark showhold > $packagesHold
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apt list --upgradable 2>&1 | grep -v -f $packagesHold | egrep -v '^(Listing|WARNING|$)' > $packages
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packagesParsable=$(cut -f 1 -d / <$packages |tr '\n' ' ')
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# No updates? Exit!
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test ! -s $packages && exit 0
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test ! -s $packagesHold && echo 'Aucun' > $packagesHold
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fetch_upgrade_info
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local_release=$(cut -f 1 -d . </etc/debian_version)
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# Exit if skip_releases or skip_packages in upgrade info file are set to all.
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([ "$r_skip_releases" = "all" ] || [ "$r_skip_packages" = "all" ]) && exit 30
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# Exit if the server's release is in skip_releases.
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[ -n "$r_skip_releases" ] && is_in "$r_skip_releases" "$local_release" && exit 40
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# Exit if all packages to upgrade are listed in skip_packages:
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# we remove each package to skip from the $packageToUpgrade list. At the end,
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# if there is no additional packages to upgrade, we can exit.
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if [ -n "$r_skip_packages" ]; then
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packageToUpgrade="$packagesParsable"
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for pkg in $r_skip_packages; do
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packageToUpgrade="${packageToUpgrade/$pkg}"
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done
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packageToUpgrade=$(echo $packageToUpgrade |sed 's/ \+//g')
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if [ -z "$packageToUpgrade" ]; then
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exit 50
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fi
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fi
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# Exit if the server's release is not in releases.
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if [ -n "$r_releases" ] && [ "$r_releases" != "all" ]; then
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is_in "$r_releases" "$local_release" || exit 60
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fi
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# Exit if there is packages to upgrades that are not in packages list:
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# we exit at the first package encountered that is not in packages list.
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if [ -n "$r_packages" ] && [ "$r_packages" != "all" ]; then
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for pkg in $packagesParsable; do
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is_in "$r_packages" "$pkg" || exit 70
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done
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fi
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# Guess which services will be restarted.
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for pkg in $packagesParsable; do
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if echo "$pkg" |grep -qE "^(lib)?apache2"; then
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echo "Apache2" >>$servicesToRestart
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elif echo "$pkg" |grep -q "^nginx"; then
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echo "Nginx" >>$servicesToRestart
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elif echo "$pkg" |grep -q "^php5-fpm"; then
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echo "PHP FPM" >>$servicesToRestart
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elif echo "$pkg" |grep -q "^mysql-server"; then
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echo "MySQL" >>$servicesToRestart
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elif echo "$pkg" |grep -q "^mariadb-server"; then
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echo "MariaDB" >>$servicesToRestart
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elif echo "$pkg" |grep -qE "^postgresql-[[:digit:]]+\.[[:digit:]]+$"; then
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echo "PostgreSQL" >>$servicesToRestart
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elif echo "$pkg" |grep -qE "^tomcat[[:digit:]]+$"; then
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echo "Tomcat" >>$servicesToRestart
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elif [ "$pkg" = "redis-server" ]; then
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echo "Redis" >>$servicesToRestart
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elif [ "$pkg" = "mongodb-server" ]; then
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echo "MondoDB" >>$servicesToRestart
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elif echo "$pkg" |grep -qE "^courier-(pop|imap)"; then
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echo "Courier POP/IMAP" >>$servicesToRestart
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elif echo "$pkg" |grep -qE "^dovecot-(pop|imap)d"; then
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echo "Dovecot POP/IMAP" >>$servicesToRestart
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elif [ "$pkg" = "samba" ]; then
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echo "Samba" >>$servicesToRestart
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elif [ "$pkg" = "slapd" ]; then
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echo "OpenLDAP" >>$servicesToRestart
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elif [ "$pkg" = "bind9" ]; then
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echo "Bind9" >>$servicesToRestart
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elif [ "$pkg" = "postfix" ]; then
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echo "Postfix" >>$servicesToRestart
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elif [ "$pkg" = "haproxy" ]; then
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echo "HAProxy" >>$servicesToRestart
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elif [ "$pkg" = "varnish" ]; then
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echo "Varnish" >>$servicesToRestart
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elif [ "$pkg" = "squid" ]; then
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echo "Squid" >>$servicesToRestart
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elif [ "$pkg" = "elasticsearch" ]; then
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echo "Elasticsearch" >>$servicesToRestart
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elif [ "$pkg" = "logstash" ]; then
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echo "Logstash" >>$servicesToRestart
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elif [ "$pkg" = "libc6" ]; then
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echo "Tous les services sont susceptibles d'être redémarrés (mise à jour de libc6)." >$servicesToRestart
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break
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elif [ "$pkg" = "libstdc++6" ]; then
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echo "Tous les services sont susceptibles d'être redémarrés (mise à jour de libstdc++6)." >$servicesToRestart
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break
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elif echo "$pkg" |grep -q "^libssl"; then
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echo "Tous les services sont susceptibles d'être redémarrés (mise à jour de libssl)." >$servicesToRestart
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break
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fi
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done
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test ! -s $servicesToRestart && echo "Aucun" >$servicesToRestart
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cat << EOT > $template
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Content-Type: text/plain; charset="utf-8"
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Reply-To: equipe@evolix.fr
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From: equipe@evolix.net
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To: ${clientmail}
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Subject: Prochain creneau pour mise a jour de votre serveur $hostname
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X-Debian-Release: $local_release
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X-Packages: $packagesParsable
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X-Date: $date
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Bonjour,
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Des mises-à-jour de sécurité ou mineures sont à réaliser sur votre serveur
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${hostname}.
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Sauf indication contraire de votre part, le prochain créneau prévu pour
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intervenir manuellement pour réaliser ces mises-à-jour est :
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${date}
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Si nous intervenons, un redémarrage des éventuels services concernés sera
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réalisé, entraînant a priori quelques secondes de coupure. Si nous ne sommes
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pas intervenus sur ce créneau, vous recevrez une nouvelle notification la
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semaine prochaine.
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Voici la listes de packages qui seront mis à jour :
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$(cat $packages)
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Liste des packages dont la mise-à-jour a été manuellement suspendue :
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$(cat $packagesHold)
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Liste des services qui seront redémarrés :
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$(cat $servicesToRestart)
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N'hésitez pas à nous faire toute remarque sur ce créneau d'intervention le plus
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tôt possible.
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Cordialement,
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--
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Équipe Evolix - Hébergement et Infogérance Open Source
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http://evolix.com | Twitter: @Evolix @EvolixNOC | http://blog.evolix.com
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EOT
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<$template /usr/sbin/sendmail $mailto
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# Now we try to fetch all the packages for the next update session
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downloadstatus=$(apt dist-upgrade --assume-yes --download-only -q2 2>&1)
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echo "$downloadstatus" | grep -q 'Download complete and in download only mode'
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if [ $? -ne 0 ]; then
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echo "$downloadstatus"
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fi;
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