95 lines
2.7 KiB
Bash
95 lines
2.7 KiB
Bash
#!/bin/bash
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set -xeuo pipefail
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# With systemd, we can force logging to the journal. This is better than
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# spamming the world with cron mails. You can then view these logs using
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# "journalctl -rat upgrade-and-reboot".
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if which logger >/dev/null 2>&1
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then
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# Dump stdout and stderr to logger, which will then put everything
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# into the journal.
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exec 1> >(logger -t upgrade-and-reboot -p user.info)
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exec 2> >(logger -t upgrade-and-reboot -p user.error)
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fi
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statusfile="/var/tmp/unattended_upgrades.status"
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# Workaround, because /var/tmp is usually 1777
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[[ "$UID" == 0 ]] && chown root:root "$statusfile"
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logins=$(ps h -C sshd -o euser | awk '$1 != "root" && $1 != "sshd" && $1 != "sshmon"')
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if [[ -n "$logins" ]]
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then
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echo "Will abort now, there are active SSH logins: $logins"
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echo "abort_ssh" > "$statusfile"
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exit 1
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fi
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softlockdir=/var/lib/bundlewrap/soft-${node.name}
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mkdir -p "$softlockdir"
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printf '{"comment": "UPDATE", "date": %s, "expiry": %s, "id": "UNATTENDED", "items": ["*"], "user": "root@localhost"}\n' \
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$(date +%s) \
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$(date -d 'now + 30 mins' +%s) \
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>"$softlockdir"/UNATTENDED
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trap 'rm -f "$softlockdir"/UNATTENDED' EXIT
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(
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apt-get update
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DEBIAN_FRONTEND=noninteractive apt-get -y -q -o Dpkg::Options::=--force-confold -o Dpkg::Options::=--force-confdef dist-upgrade
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)
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ret=$?
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echo "apt-get dist-upgrade exited $ret"
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echo "$ret" > "$statusfile"
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if (( $ret != 0 ))
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then
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exit 1
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fi
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DEBIAN_FRONTEND=noninteractive apt-get -y -q autoclean
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DEBIAN_FRONTEND=noninteractive apt-get -y -q autoremove
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% if clean_old_kernels:
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existing=$(dpkg --get-selections | grep -E '^linux-(image|headers)-[0-9]' || true)
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if [[ -z "$existing" ]]
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then
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echo "ERROR: No installed kernels found! Aborting!" >&2
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exit 1
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fi
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current=$(uname -r | sed -r 's/-[a-zA-Z]+$//')
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latest=$(echo "$existing" | sort --version-sort -t- -k 3,4 | tail -n 1 | sed -r 's/[^0-9]+([0-9]\.[^-]+-[0-9]+).*/\1/')
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todelete=$(echo "$existing" | grep -v -E "($current|$latest)" | awk '{ print $1 }' || true)
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if [[ -n "$todelete" ]]
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then
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DEBIAN_FRONTEND=noninteractive apt-get -qy purge $todelete
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fi
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% endif
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if [[ -f /var/run/reboot-required ]]
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then
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% if 'mail' in data:
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date | mail -s "SYSREBOOTNOW ${node.name}" ${data['mail']}
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% endif
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systemctl reboot
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% if restart_triggers:
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else
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% for affected, restarts in sorted(restart_triggers.items()):
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up_since=$(systemctl show "${affected}" | sed -n 's/^ActiveEnterTimestamp=//p' || echo 0)
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up_since_ts=$(date -d "$up_since" +%s || echo 0)
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now=$(date +%s)
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if [ $((now - up_since_ts)) -lt 3600 ]
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then
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% for restart in sorted(restarts):
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systemctl restart "${restart}" || true
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% endfor
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fi
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% endfor
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% endif
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fi
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