Add dry run, sanitize bash syntax
This commit is contained in:
parent
2ecfc3597f
commit
713a1eef79
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@ -1,47 +1,59 @@
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#!/usr/bin/env bash
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#
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# pilpil client installer v0.1
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#
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# https://sharats.me/posts/shell-script-best-practices/
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set -o errexit
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set -o nounset
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set -o pipefail
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if [[ "${TRACE-0}" == "1" ]]; then set -o xtrace; fi
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if [[ "${TRACE-0}" == "1" ]]; then
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set -o xtrace
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fi
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# Change to script dir
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cd "$(dirname "$0")"
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#
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if [[ "${1-}" =~ ^-*h(elp)?$ ]]; then
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echo 'Usage: ./pilpil-server.sh path_to_device
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This is an awesome bash script to make your life better.
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'
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exit
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fi
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# Options
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# Device block to write on
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# Colored output
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#~ set +x
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bold=$(tput bold)
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function red(){
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echo -e "${bold}\x1B[31m$1 \x1B[0m"
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if [ ! -z "${2}" ]; then
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if [ ! -z "${2-}" ]; then
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echo -e "\x1B[31m $($2) \x1B[0m"
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fi
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}
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function green(){
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echo -e "${bold}\x1B[32m$1 \x1B[0m"
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if [ ! -z "${2}" ]; then
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if [ ! -z "${2-}" ]; then
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echo -e "\x1B[32m $($2) \x1B[0m"
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fi
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}
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function yellow(){
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echo -e "${bold}\x1B[33m$1 \x1B[0m"
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if [ ! -z "${2}" ]; then
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if [ ! -z "${2-}" ]; then
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echo -e "\x1B[33m $($2) \x1B[0m"
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fi
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}
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SDCARD=$1
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# Display help if -h(elpf) used
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if [[ "${1-}" =~ ^-*h(elp)?$ ]]; then
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echo 'Usage: ./pilpil-server.sh path_to_device
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This script will setup as much pilpil-clients as needed.
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'
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exit
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fi
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# Set dry run if -d(ry) used
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if [[ "${1-}" =~ ^-*d(ry)?$ ]]; then
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DRY_RUN=1
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yellow "!!! Running in dry mode. No modifications will be made.\n"
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fi
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# Options
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# Device block to write on
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if [[ ! "$DRY_RUN" ]]; then
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SDCARD="${1-}"
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else
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SDCARD="${2-}"
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fi
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# TODO : accomodate for devices block with name mmcblk0p1|p2
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if [[ "$SDCARD" == "" ]] || [[ ! -e "$SDCARD" ]]
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then
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@ -50,14 +62,12 @@ then
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fi
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DD_BS="128K"
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DISK_IMAGE="$HOME/niels/imgs/2022-10-25-pilpil-WIP.img.xz"
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if [[ ! -f "$DISK_IMAGE" ]]
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then
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if [[ ! -f "$DISK_IMAGE" ]]; then
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red "Disk image not found, aborting..." >&2
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exit 0
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fi
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CONFIG_DIR="$HOME/niels/pilpil-server"
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if [[ ! -d "$CONFIG_DIR" ]]
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then
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if [[ ! -d "$CONFIG_DIR" ]]; then
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red "Config directory not found, aborting..." >&2
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exit 0
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fi
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@ -67,8 +77,7 @@ BOOT_MOUNT="/run/media/$USER/boot"
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ROOTFS_MOUNT="/run/media/$USER/rootfs"
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#~ LOCAL_MEDIA_DIR="$HOME/Videos"
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LOCAL_MEDIA_DIR="$HOME/niels/medias"
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if [[ ! -d "$LOCAL_MEDIA_DIR" ]]
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then
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if [[ ! -d "$LOCAL_MEDIA_DIR" ]]; then
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red "Medias directory not found, aborting..." >&2
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exit 0
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fi
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@ -88,29 +97,42 @@ CHAN="802-11-wireless.channel 1"
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#
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# 0. Create AP connection
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#
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# If connection exists, delete it
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nmcli con delete $SSID
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nmcli con add type wifi ifname $IFW con-name $SSID autoconnect yes ssid $SSID
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nmcli con modify $SSID 802-11-wireless.mode ap 802-11-wireless.band $BAND $CHAN $HIDE ipv4.method shared
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nmcli con modify $SSID wifi-sec.key-mgmt wpa-psk
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nmcli con modify $SSID 802-11-wireless-security.proto rsn
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nmcli con modify $SSID 802-11-wireless-security.pairwise ccmp
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nmcli con modify $SSID wifi-sec.psk $PASSWD
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green " * Creating hotspot connection for NetworkManager \n"
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if [[ ! "$DRY_RUN" ]]; then
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# If connection exists, delete it
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nmcli con delete $SSID
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nmcli con add type wifi ifname $IFW con-name $SSID autoconnect yes ssid $SSID
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nmcli con modify $SSID 802-11-wireless.mode ap 802-11-wireless.band "${BAND-}" "${CHAN-}" "${HIDE-}" ipv4.method shared
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nmcli con modify $SSID wifi-sec.key-mgmt wpa-psk
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nmcli con modify $SSID 802-11-wireless-security.proto rsn
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nmcli con modify $SSID 802-11-wireless-security.pairwise ccmp
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nmcli con modify $SSID wifi-sec.psk $PASSWD
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fi
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# 0.a set IP range on server
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echo -e "Setting IP range $IP_RANGE/24 in /etc/NetworkManager/system-connections/$SSID.nmconnection ... \n"
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sudo sed -i "/method=shared/a address1=$IP_RANGE/24, $IP_RANGE" /etc/NetworkManager/system-connections/$SSID.nmconnection
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# Remove existing leases
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sudo rm /var/lib/NetworkManager/dnsmasq-$IFW.leases
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sudo systemctl restart NetworkManager
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nmcli radio wifi on
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nmcli con up $SSID
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green " * Setting IP range $IP_RANGE/24 in /etc/NetworkManager/system-connections/$SSID.nmconnection ... \n"
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if [[ ! "$DRY_RUN" ]]; then
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sudo sed -i "/method=shared/a address1=$IP_RANGE/24, $IP_RANGE" /etc/NetworkManager/system-connections/$SSID.nmconnection
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# Remove existing leases
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sudo rm /var/lib/NetworkManager/dnsmasq-$IFW.leases
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# restart NM
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sudo systemctl restart NetworkManager
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# Turn hotspot on
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nmcli radio wifi on
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nmcli con up $SSID
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fi
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# 0.b ask for number of clients
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# This will be used to determine static IP
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yellow "Nombre de clients à configurer : "
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read -n 4 CLIENT_NUMBER
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# Check input
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if [[ ! "${CLIENT_NUMBER}" =~ ^[0-9]+$ ]]; then
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red "\nInput was not a number, aborting.\n"
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exit 0
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fi
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if [[ "${CLIENT_NUMBER}" -lt 1 ]]; then
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red "\nInput was 0, nothing to do.\n"
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exit 0
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fi
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green "Got $CLIENT_NUMBER...\n"
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# For some reason networkmanager finds it clever to offer only IPs in range 10-255 even when asked for a /24, /28, etc...
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# So IPs start at 10
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@ -118,36 +140,39 @@ green "Got $CLIENT_NUMBER...\n"
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#~ IP=$(echo $IP_RANGE | awk -F. '{print $4}')
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FIRST=1
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IP=10
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echo -e "First IP is $(($RANGE_START)) ...\n"
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#~ echo -e "First IP is $(($RANGE_START)) ...\n"
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# Remove IP's last byte
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IP_RANGE_3B=$(echo $IP_RANGE | awk -F. '{print $1"."$2"."$3"."}')
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echo -e "First IP is $IP_RANGE_3B$IP ...\n"
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# Generate SSL cert with IPs in IP_RANGE
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IP_CNT=$IP
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IP_ARRAY=()
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while [[ "$IP_CNT" -lt $(($CLIENT_NUMBER+$IP)) ]]
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while [[ "$IP_CNT" -lt $(("${CLIENT_NUMBER-}"+"${IP-}")) ]]
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do
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IP_ARRAY+=("IP:$IP_RANGE_3B$IP_CNT")
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((IP_CNT++))
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done
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# Convert array to string
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HOST_LIST="$(IFS=","; echo "${IP_ARRAY[*]}")"
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yellow "Got host list : $HOST_LIST \n"
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green "Got host list : ${HOST_LIST-} \n"
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# 5. Generate valid ssl cert/key for every IP in range
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# https://unix.stackexchange.com/questions/104171/create-ssl-certificate-non-interactively
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yellow "Generating SSL crt/key for $HOST_LIST...\n"
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openssl req -new -newkey rsa:4096 -days 1825 -nodes -x509 \
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-subj "/C=/ST=Denial/L=/O=/CN=$IP_RANGE$FIRST" \
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-addext "subjectAltName=$HOST_LIST" \
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-keyout "$CONFIG_DIR/selfCA.key" -out "$CONFIG_DIR/selfCA.crt"
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#sudo openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout "$ROOTFS_MOUNT/etc/ssl/private/nginx-selfsigned.key" -out "$ROOTFS_MOUNT/etc/ssl/certs/nginx-selfsigned.crt"
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green "Generating SSL crt/key for $HOST_LIST...\n"
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if [[ ! "$DRY_RUN" ]]; then
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openssl req -new -newkey rsa:4096 -days 1825 -nodes -x509 \
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-subj "/C=/ST=Denial/L=/O=/CN=$IP_RANGE$FIRST" \
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-addext "subjectAltName=$HOST_LIST" \
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-keyout "$CONFIG_DIR/selfCA.key" -out "$CONFIG_DIR/selfCA.crt"
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#sudo openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout "$ROOTFS_MOUNT/etc/ssl/private/nginx-selfsigned.key" -out "$ROOTFS_MOUNT/etc/ssl/certs/nginx-selfsigned.crt"
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fi
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# Proceed with each host
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for HOST in "${IP_ARRAY[@]}"
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do
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HOST=$(echo $HOST | awk -F: '{print $2}')
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HOST_NAME="pilpil-$(echo $HOST | awk -F. '{print $4}')"
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# 1. Copy img to sd
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green "Operation 1/13 : Imaging $SDCARD with the file $DISK_IMAGE ...\n"
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green "1/14 : Imaging $SDCARD with the file $DISK_IMAGE ...\n"
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red "Are you sure you want to ERASE THE CONTENT of $SDCARD ? Type uppercase 'yes' to confirm."
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read -n 4 GO_DD
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if [[ "$GO_DD" != "YES" ]]
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@ -156,48 +181,69 @@ do
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break
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fi
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red "Received answer $GO_DD. Running dd on $SDCARD in 5 seconds."
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if [[ ! "$DRY_RUN" ]]; then
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sleep 5
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fi
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GO_DD=0
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# unmount / remount new filesystem
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green "Unmounting $BOOT_MOUNT and $ROOTFS_MOUNT ...\n"
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green "2/14 : Unmounting $BOOT_MOUNT and $ROOTFS_MOUNT ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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umount $BOOT_MOUNT
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umount $ROOTFS_MOUNT
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xzcat "$DISK_IMAGE" | sudo dd of=$SDCARD bs="$DD_BS" oflag=dsync status=progress && sync
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green "Operation 3/13 : Remounting $BOOT_MOUNT and $ROOTFS_MOUNT ...\n"
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fi
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green "3/14 : Remounting $BOOT_MOUNT and $ROOTFS_MOUNT ...\n"
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echo "Remounting..."
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if [[ ! "$DRY_RUN" ]]; then
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sleep 1
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systemctl --user restart gvfs-udisks2-volume-monitor
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sleep 3
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green "Operation 4/13 : Changing hostname to $HOST_NAME ...\n"
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fi
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green "4/14 : Changing hostname to $HOST_NAME in $ROOTFS_MOUNT/etc/hostname and $ROOTFS_MOUNT/etc/hosts ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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# Change hostname
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echo "$HOST_NAME" | sudo tee "$ROOTFS_MOUNT/etc/hostname"
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# Reflect that in /etc/hosts
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sudo sed -i "$ d" "$ROOTFS_MOUNT/etc/hosts"
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sudo sed -i "$d" "$ROOTFS_MOUNT/etc/hosts"
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echo -e "127.0.1.1\t$HOST_NAME" | sudo tee -a "$ROOTFS_MOUNT/etc/hosts"
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fi
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## Enable SSH
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green "Operation 5/13 : Enabling SSH server on boot ...\n"
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green "5/14 : Enabling SSH server on boot : $BOOT_MOUNT/ssh ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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touch "$BOOT_MOUNT/ssh"
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sync
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fi
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## Generate SSH private/public key and install it - Disable passwd login
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green "Operation 6/13 : Generating private/public SSH key as $HOME/.ssh/$HOST_NAME ...\n"
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green "6/14 : Generating private/public SSH key as $HOME/.ssh/$HOST_NAME ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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ssh-keygen -t ed25519 -f "$HOME/.ssh/$HOST_NAME" -N ""
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fi
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red "New SSH key pair generated as $HOME/.ssh/$HOST_NAME. Add to ~/.ssh/config ? (y/n)"
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read -n 2 ADD_SSH_CONF
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if [[ "$ADD_SSH_CONF" == "y" ]]
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then
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if [[ "$ADD_SSH_CONF" == "y" ]];then
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green "Adding $HOST_NAME with ip $HOST in $HOME/.ssh/config"
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if [[ ! "$DRY_RUN" ]]; then
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# Add to ~/.ssh/config
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echo -e "\nHost $HOST_NAME\n\tHostname $HOST\n\tIdentityFile ~/.ssh/$HOST_NAME\n\tUser $PI_USER" | tee -a "$HOME/.ssh/config"
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fi
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else
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yellow "\nAnswer was different from 'y', skipping..."
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fi
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# Copy public key to rpi
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green "Operation 7/13 : Installing public SSH key $HOME/.ssh/$HOST.pub in $ROOTFS_MOUNT/home/$PI_USER/.ssh/authorized_keys...\n"
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green "7/14 : Installing public SSH key $HOME/.ssh/$HOST.pub in $ROOTFS_MOUNT/home/$PI_USER/.ssh/authorized_keys...\n"
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if [[ ! "$DRY_RUN" ]]; then
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sudo cp "$HOME/.ssh/$HOST_NAME.pub" "$ROOTFS_MOUNT/home/$PI_USER/.ssh/authorized_keys"
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sync
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fi
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# Disable PW login
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green "Operation 8/13 : Disabling SSH password based login in $ROOTFS_MOUNT/etc/ssh/sshd_config ...\n"
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green "8/14 : Disabling SSH password based login in $ROOTFS_MOUNT/etc/ssh/sshd_config ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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echo -e "PasswordAuthentication no\nChallengeResponseAuthentication no\nUsePAM no" | sudo tee -a "$ROOTFS_MOUNT/etc/ssh/sshd_config"
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sync
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fi
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# 3. Configure wifi with static IP
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green "Operation 9/13 : Configuring wireless connection to $SSID with pw $PASSWD : ...\n"
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green "9/14 : Configuring wireless connection to $SSID with pw $PASSWD : ...\n"
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if [[ ! "$DRY_RUN" ]]; then
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echo "ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
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update_config=1
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country=FR
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@ -213,34 +259,46 @@ network={
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# scan_freq=2412 2437 2462
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}" | sudo tee "$ROOTFS_MOUNT/etc/wpa_supplicant/wpa_supplicant.conf"
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sync
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fi
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# Request specific IP to dhcp server
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green "Operation 10/13 : Setting static IP $HOST in $ROOTFS_MOUNT/etc/dhcpcd.conf...\n"
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green "10/14 : Setting static IP $HOST in $ROOTFS_MOUNT/etc/dhcpcd.conf...\n"
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if [[ ! "$DRY_RUN" ]]; then
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echo -e "interface wlan0\nrequest $HOST" | sudo tee -a "$ROOTFS_MOUNT/etc/dhcpcd.conf"
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sync
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fi
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# 5. Install previously generated SSL key/crt
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#sudo openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout "$ROOTFS_MOUNT/etc/ssl/private/nginx-selfsigned.key" -out "$ROOTFS_MOUNT/etc/ssl/certs/nginx-selfsigned.crt"
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green "Operation 11/13 : Installing public SSH key $CONFIG_DIR/selfCA.crt in $ROOTFS_MOUNT/etc/ssl/certs/ ...\n"
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green "11/14 : Installing SSL : $CONFIG_DIR/selfCA.crt and $CONFIG_DIR/selfCA.key in $ROOTFS_MOUNT/etc/ssl/certs/ and $ROOTFS_MOUNT/etc/ssl/private/nginx-selfsigned.key...\n"
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if [[ ! "$DRY_RUN" ]]; then
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sudo cp "$CONFIG_DIR/selfCA.crt" "$ROOTFS_MOUNT/etc/ssl/certs/nginx-selfsigned.crt"
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sudo cp "$CONFIG_DIR/selfCA.key" "$ROOTFS_MOUNT/etc/ssl/private/nginx-selfsigned.key"
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sync
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fi
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green "12/14 : Installing http auth secrets in $CONFIG_DIR/pilpil-server.toml, $ROOTFS_MOUNT/home/pil/.config/systemd/user/vlc.service and $ROOTFS_MOUNT/home/pil/pilpil-client/defaults.toml...\n"
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if [[ ! "$DRY_RUN" ]]; then
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#~ Change VLC/pilpil http auth secret
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sed -i "s:secret:$HTTP_SECRET:g" "$CONFIG_DIR/pilpil-server.toml"
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sed -i "s:secret:$HTTP_SECRET:g" "$ROOTFS_MOUNT/home/pil/.config/systemd/user/vlc.service"
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sed -i "s:secret:$HTTP_SECRET:g" "$ROOTFS_MOUNT/home/pil/pilpil-client/defaults.toml"
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fi
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#~ # 6. Copy medias
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green "Operation 12/13 : Syncing media folder $LOCAL_MEDIA_DIR/ with $REMOTE_MEDIA_DIR/ \n"
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green "13/14 : Syncing media folder $LOCAL_MEDIA_DIR/ with $REMOTE_MEDIA_DIR/ \n"
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if [[ ! "$DRY_RUN" ]]; then
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# Remove filler file
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if [[ -f "$REMOTE_MEDIA_DIR/remove_me" ]]
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then
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if [[ -f "$REMOTE_MEDIA_DIR/remove_me" ]]; then
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sudo rm "$REMOTE_MEDIA_DIR/remove_me"
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fi
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fi
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if [[ -d "$ROOTFS_MOUNT" ]]; then
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# Get available space on rootfs
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ROOTFS_AVAILABLE_SPACE=$(df -t ext4 -P $ROOTFS_MOUNT | tail -1 | awk '{print $4}')
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ROOTFS_AVAILABLE_SPACE=$(df -t ext4 -P "$ROOTFS_MOUNT" | tail -1 | awk '{print $4}')
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yellow "Space available on rootfs : $ROOTFS_AVAILABLE_SPACE sectors"
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# Get Media folder size
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MEDIA_SIZE=$(du -c $LOCAL_MEDIA_DIR | tail -1 | awk '{print $1}')
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MEDIA_SIZE=$(du -c "$LOCAL_MEDIA_DIR" | tail -1 | awk '{print $1}')
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yellow "Size of medias : $MEDIA_SIZE sectors"
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fi
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if [[ ! "$DRY_RUN" ]]; then
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# Only copy files if enough space available
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if [[ "$MEDIA_SIZE" -lt "$ROOTFS_AVAILABLE_SPACE" ]]
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then
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if [[ "$MEDIA_SIZE" -lt "$ROOTFS_AVAILABLE_SPACE" ]]; then
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USER_ID=$( cat "$ROOTFS_MOUNT/etc/passwd" | grep $PI_USER | awk -F: '{print $3}' )
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GROUP_ID=$( cat "$ROOTFS_MOUNT/etc/passwd" | grep $PI_USER | awk -F: '{print $4}' )
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sudo cp "$LOCAL_MEDIA_DIR/"* "$REMOTE_MEDIA_DIR/"
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@ -249,13 +307,16 @@ network={
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else
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red "Not enough space on $ROOTFS_MOUNT, skipping..."
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fi
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fi
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# Unmount FS
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green "Operation 13/13 : Unmounting filesystems"
|
||||
umount $BOOT_MOUNT
|
||||
umount $ROOTFS_MOUNT
|
||||
green "14/14 : Unmounting filesystems"
|
||||
if [[ ! "$DRY_RUN" ]]; then
|
||||
umount "$BOOT_MOUNT"
|
||||
umount "$ROOTFS_MOUNT"
|
||||
fi
|
||||
yellow "Client $(($IP-9))/$CLIENT_NUMBER done."
|
||||
if [[ "$IP" -le "$IP_CNT" ]]
|
||||
then
|
||||
#~ echo "$IP / $(($IP_CNT-1))"
|
||||
if [[ "$IP" -lt "$(($IP_CNT-1))" ]]; then
|
||||
red "Please swap sd card in reader and enter uppercase 'yes' to proceed with next client or hit Ctrl-C:"
|
||||
read -n 4 GO_ON
|
||||
if [ "$GO_ON" != "YES" ]
|
||||
|
|
|
|||
Loading…
Reference in New Issue