Upgrade Alpine 3.15

upgrade-alpine-3.15.sh

#!/bin/sh

# wget -O '/etc/local.d/upgrade-alpine-3.15.start' 'https://gist.github.com/LordVeovis/03da6d5e39e0cc487b2da2218d0304ee/raw/7468f5c31cd4d64094d9a2b59ef642967ba3f52c/upgrade-alpine-3.15.sh'
# chmod +x /etc/local.d/upgrade-alpine-3.15.start

CURRENT=3.14
NEXT=3.15
SCRIPT_ME=$PWD/$0
UPGRADE_LOCAL_SCRIPT=/etc/local.d/upgrade-alpine-3.15.start
 
# identify current step
go_step1=$(cat /etc/os-release | grep VERSION | grep $CURRENT | wc -l)
go_step2=$(cat /etc/os-release | grep VERSION | grep $NEXT | wc -l)
 
# === BEGIN TOOLS FUNCTIONS ===
function remove() {
    f=$1
 
    if [ -f "$f" ]; then
        rm "$f"
    fi
}
 
function replace() {
    new=$1
    old=$2
 
    if [ -f "$new" ]; then
        mv "$new" "$old"
    fi
}
# === END TOOLS FUNCTIONS ===
 
function step1() {
    echo "|=========="
    echo "| ==> STEP1"
    echo "|=========="
    
    # suspend puppet
    rc-service puppet stop
    rc-update del puppet
    [ ! -f /etc/init.d/docker ] || rc-update del docker
    sed -i "s/$CURRENT/$NEXT/g" /etc/apk/repositories
 
    # remove old gems version
    gem uninstall -x puppet facter
    
    rc-update add local
 
    # upgrade the system
    apk update
    apk upgrade
     
    # reinstall puppet with the new ruby
    apk add --virtual=_build alpine-sdk ruby-dev
    gem install rdoc -v 6.3.3 --no-document
    gem install puppet -v 7.16.0 --no-document
    gem install msgpack CFPropertyList ruby-shadow --no-document
    apk del _build
    rm -r /usr/lib/ruby/gems/2.7.0
    
    if [ "$SCRIPT_ME" -ne "$UPGRADE_LOCAL_SCRIPT" ]; then
     ln -fs "$SCRIPT_ME" "$UPGRADE_LOCAL_SCRIPT"
    fi
     
    reboot
}
 
function step2() {
    echo "|=========="
    echo "| ==> STEP2"
    echo "|=========="

    apk add diffutils
    rm "$UPGRADE_LOCAL_SCRIPT"
 
    if [ -f /etc/init.d/zabbix-agentd.apk-new ]; then
        mv /etc/init.d/zabbix-agentd.apk-new /etc/init.d/zabbix-agentd
        rc-service zabbix-agentd restart
    fi

    remove /etc/conf.d/loadkmap.apk-new
    remove /etc/conf.d/syslog.apk-new
    remove /etc/ssh/sshd_config.apk-new
    remove /etc/ssh/moduli.apk-new
    remove /etc/default/grub.apk-new
    remove /etc/hostname.apk-new
    remove /etc/fstab.apk-new
    remove /etc/shells.apk-new
    remove /etc/shadow.apk-new
    remove /etc/hosts.apk-new
    remove /etc/group.apk-new
    remove /etc/passwd.apk-new
    groupmems -g utmp -d utmp
    remove /etc/mkinitfs/mkinitfs.conf.apk-new
    remove /etc/conf.d/node-exporter.apk-new
    replace /etc/zabbix/zabbix_agentd.conf.apk-new /etc/zabbix/zabbix_agentd.conf
    
    puppet config set publicdir /var/lib/puppet/public
    rc-update add puppet
    [ ! -f /etc/init.d/docker ] || rc-update add docker

    reboot
}
 
if [ $go_step1 -eq 1 ]; then
    step1
fi
 
if [ $go_step2 -eq 1 ]; then
    step2
fi
 
function step3() {
    for f in $a; do
        org=$(echo $f|sed 's/.apk-new//')
        new=$f
 
        echo ''
        diff -u --color "$org" "$new"
 
        read
    done
}