iankelling.org Git - distro-setup/blob - filesystem/usr/local/bin/myupgrade

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to switch
   7 # its license to GPL.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23
  24 # usage: set DEBUG env var to anything to output to stdout
  25
  26 # Note: running this inside a cronjob, it wont mail any output if we end
  27 # up rebooting from this script.
  28
  29 set -e; . /usr/local/lib/bash-bear; set +e
  30
  31 pre="${0##*/}:"
  32 PATH="/sbin:$PATH"
  33 m() { printf "$pre %s\n"  "$*"; "$@"; }
  34 e() { printf "$pre %s\n"  "$*"; }
  35 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  36
  37 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  38
  39 hn=$(hostname -f)
  40 source /a/bin/bash_unpublished/source-state
  41
  42 d() {
  43   if [[ $DEBUG ]]; then
  44     pee cat "wall -n"
  45   else
  46     # 2>/dev/null hopefully gets rid of errors like: wall: /dev/pts/0: No such file or directory
  47     sed 's/^/myupgrade /' | pee logger "wall -n" 2>/dev/null
  48   fi
  49 }
  50 myreboot() {
  51   if [[ -e /tmp/myupgrade-noreboot ]]; then
  52     e "would rebooted but /tmp/myupgrade-noreboot exists"
  53     return
  54   fi
  55
  56   for x in {30..1}; do
  57     echo "pid $$. unattended upgrade, rebooting in $((x*10)) seconds" | wall -n 2>/dev/null
  58     sleep 10
  59   done
  60   for x in {30..1}; do
  61     if ! fuser /var/lib/dpkg/lock &> /dev/null; then
  62       echo "pid $$. unattended upgrade, rebooting now" | d
  63       /a/bin/ds/keyscript-on
  64       /sbin/reboot
  65       exit 0
  66     fi
  67     echo "pid $$. unattended upgrade reboot waiting 10 seconds for dpkg lock" | wall -n 2>/dev/null
  68     sleep 10
  69   done
  70   echo "pid $$. dpkg locked for 5 minutes, automatic reboot failed" | d
  71 }
  72
  73
  74 case $hn in
  75   kd)
  76     /c/roles/prom/files/simple/usr/local/bin/fsf-install-prometheus
  77     /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter -l 127.0.0.1
  78     ;;
  79   li|bk|je)
  80     /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter -l 127.0.0.1
  81     ;;
  82   *)
  83     /c/roles/prom_export/files/simple/usr/local/bin/fsf-install-node-exporter
  84     ;;
  85 esac
  86
  87 case $hn in
  88   sy)
  89     /b/fai/config/distro-install-common/install-stable-kernel-debs
  90     ;;
  91 esac
  92
  93
  94 # TODO: executed from cron, this doesnt sent an email when we reboot,
  95 # because rebooting from the script stops the ability to send email.
  96 # We should figure some workaround.
  97
  98 # I originally had the idea that for MAIL_HOST, I'd just send an email
  99 # if something needs restarting. But atm, I have a bad habit of ignoring
 100 # those emails.
 101
 102 if ! needrestart -p -k &>/dev/null; then
 103   myreboot
 104 fi
 105
 106 needrestart -b -l -r a |& logger -t myupgrade
 107 sleep 1
 108
 109 # Restart based on library doesnt always work. If we still
 110 # detect outdated libraries after trying to automatically restart,
 111 # then do a reboot unless we are on systems we care a bit more about
 112 # uptime, then send us an email.
 113 #
 114 # Note: I've noticed restart based on library has tended to screw up
 115 # desktop related daemons because they have bugs when restarted in
 116 # isolation instead of as part of bring up and down the whole desktop.
 117 # But, I'd rather something gets messed up than things not get
 118 # restarted.
 119 if ! /sbin/needrestart -p &>/dev/null; then
 120   if [[ $hn == "$MAIL_HOST" || $hn == kd ]]; then
 121     # send us an email so we can decide what to do
 122     needrestart -r l
 123   else
 124     myreboot
 125   fi
 126 fi