NodeJS, a better "sethostname" and RPI3 Access Point+Station mode

apst/README.md

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+# RPI 3 WIFI AP + Station
+
+The install script, `self-installer.sh` is a little special in that it 
+contains an embedded tar.gz "file" with the contents of `./etc` and `./files/installer`.
+If you make any changes to `./etc` or to `./files/installer`, then run
+
+```bash
+./make-self-installer.sh
+```
+
+which will create a new `self-installer.sh`.  Then re-import this block into PiBakery
+to get the changes.

apst/apst.json

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+{
+  "name": "apst",
+  "text": "Setup Access Point+Station\\nAP SSID: %1\\nAP Pass: %2\\nBridge AP to ST?: %3\\nST SSID: %4\\nST Pass: %5\\nST Type: %6",
+  "script": "self-installer.sh",
+  "args": [
+    {
+      "type": "text",
+      "default": "ap-ssid",
+      "maxLength":0
+    },
+    {
+      "type": "text",
+      "default": "ap-password",
+      "maxLength":0
+    },
+    {
+      "type": "menu",
+      "options": [ "yes", "no" ]
+    },
+    {
+      "type": "text",
+      "default": "st-ssid",
+      "maxLength":0
+    },
+    {
+      "type": "text",
+      "default": "st-password",
+      "maxLength":0
+    },
+    {
+      "type": "menu",
+      "options": ["WPA/WPA2", "WEP", "Open (no password)"]
+    }
+  ],
+  "network": false,
+  "continue": true,
+  "type": "network",
+  "category":"network",
+  "supportedOperatingSystems": [
+    "raspbian-pibakery.img",
+    "raspbian-lite-pibakery.img"
+  ],
+  "shortDescription":"Set up Access Point + Station mode",
+  "longDescription":"This block allows you to enter a WiFi network name and password, and then your Raspberry Pi will automatically connect to that network when it is first switched on.  It also creates a WiFi hotspot (access point) that (optionally) bridges traffic to the client interface."
+}

apst/etc/default/hostapd

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+# Defaults for hostapd initscript
+#
+# See /usr/share/doc/hostapd/README.Debian for information about alternative
+# methods of managing hostapd.
+#
+# Uncomment and set DAEMON_CONF to the absolute path of a hostapd configuration
+# file and hostapd will be started during system boot. An example configuration
+# file can be found at /usr/share/doc/hostapd/examples/hostapd.conf.gz
+#
+DAEMON_CONF="/etc/hostapd/hostapd.conf"
+
+# Additional daemon options to be appended to hostapd command:-
+# 	-d   show more debug messages (-dd for even more)
+# 	-K   include key data in debug messages
+# 	-t   include timestamps in some debug messages
+#
+# Note that -B (daemon mode) and -P (pidfile) options are automatically
+# configured by the init.d script and must not be added to DAEMON_OPTS.
+#
+#DAEMON_OPTS=""

apst/etc/dnsmasq.conf

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+interface=lo,uap0
+no-dhcp-interface=lo,wlan0
+bind-interfaces
+server=8.8.8.8
+dhcp-range=10.3.141.50,10.3.141.255,12h

apst/etc/hostapd/hostapd.conf

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+interface=uap0
+ssid=_AP_SSID_
+hw_mode=g
+channel=6
+macaddr_acl=0
+auth_algs=1
+ignore_broadcast_ssid=0
+wpa=2
+wpa_passphrase=_AP_PASSWORD_
+wpa_key_mgmt=WPA-PSK
+wpa_pairwise=TKIP
+rsn_pairwise=CCMP

apst/etc/network/interfaces

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+# interfaces(5) file used by ifup(8) and ifdown(8)
+
+# Please note that this file is written to be used with dhcpcd
+# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
+
+# Include files from /etc/network/interfaces.d:
+source-directory /etc/network/interfaces.d
+
+auto lo
+iface lo inet loopback
+
+iface eth0 inet manual
+
+allow-hotplug wlan0
+iface wlan0 inet manual
+    wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
+
+allow-hotplug uap0
+auto uap0
+iface uap0 inet static
+    address 10.3.141.1
+    netmask 255.255.255.0
+

apst/etc/udev/rules.d/90-wireless.rules

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+ACTION=="add", SUBSYSTEM=="ieee80211", KERNEL=="phy0", \
+    RUN+="/sbin/iw phy %k interface add uap0 type __ap"
+

apst/etc/wpa_supplicant/wpa_supplicant-none.conf

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+ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
+country=GB
+
+network={
+	ssid="_ST_SSID_"
+	scan_ssid=1
+	key_mgmt=NONE
+}

apst/etc/wpa_supplicant/wpa_supplicant-wep.conf

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+ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
+country=GB
+
+network={
+	ssid="_ST_SSID_"
+	scan_ssid=1
+	key_mgmt=NONE
+	wep_key0="_ST_PASSWORD_"
+}

apst/etc/wpa_supplicant/wpa_supplicant-wpa.conf

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+ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
+country=GB
+
+network={
+	ssid="_ST_SSID_"
+	scan_ssid=1
+	psk="_ST_PASSWORD_"
+	key_mgmt=WPA-PSK
+}

apst/etc/wpa_supplicant/wpa_supplicant.conf

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+ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
+country=GB
+
+network={
+	ssid="_ST_SSID_"
+	scan_ssid=1
+	psk="_ST_PASSWORD_"
+	key_mgmt=WPA-PSK
+}

apst/files/installer

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+#!/bin/bash
+#
+# Called by the self extracting installer.  Everything we need
+# is in ./etc.  Parse arguments, do the substitutions and install
+# the files.
+#
+ap_ssid="$1"
+ap_password="$2"
+ap_bridge="$3"
+st_ssid="$4"
+st_password="$5"
+st_type="$6"
+
+function wait_for_network {
+    for ((i=0;i<50;i++)); do
+	ping -w 1 8.8.8.8 >/dev/null 2>&1
+	if [ $? -eq 0 ]
+	then
+	    sleep 1
+	    break
+	fi
+	sleep 4
+    done
+}
+
+function enable_station {
+    if [ "$st_type" = "Open (no password)" ]; then
+    cat etc/wpa_supplicant/wpa_supplicant-none.conf | \
+	sed "s/_ST_SSID_/$st_ssid/g" > /etc/wpa_supplicant/wpa_supplicant.conf
+    elif [ "$st_type" = "WEP" ]; then
+	cat etc/wpa_supplicant/wpa_supplicant-wep.conf | \
+	    sed "s/_ST_SSID_/$st_ssid/g" | \
+	    sed "s/_ST_PASSWORD_/$st_password/g" > /etc/wpa_supplicant/wpa_supplicant.conf
+    else
+	cat etc/wpa_supplicant/wpa_supplicant-wpa.conf | \
+	    sed "s/_ST_SSID_/$st_ssid/g" | \
+	    sed "s/_ST_PASSWORD_/$st_password/g" > /etc/wpa_supplicant/wpa_supplicant.conf
+    fi
+    wpa_cli reconfigure
+    wait_for_network
+}
+
+function packages {
+    export DEBIAN_FRONTEND=noninteractive
+    apt-get update && apt-get install -q -y hostapd dnsmasq iptables-persistent
+}
+
+function install_device {
+    cp etc/network/interfaces /etc/network/interfaces
+    cp etc/udev/rules.d/90-wireless.rules /etc/udev/rules.d/90-wireless.rules
+    /sbin/iw phy phy0 interface add uap0 type __ap
+}
+
+function copy_ap_files {
+    cp etc/default/hostapd /etc/default/hostapd
+    cp etc/dnsmasq.conf /etc/dnsmasq.conf
+    cat etc/hostapd/hostapd.conf | \
+	sed "s/_AP_SSID_/$ap_ssid/g" | \
+	sed "s/_AP_PASSWORD_/$ap_password/g" > /etc/hostapd/hostapd.conf
+}
+
+function bridge {
+    if [ "$ap_bridge" = "yes" ]; then
+	echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
+	echo 1 > /proc/sys/net/ipv4/ip_forward
+	iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
+	iptables -A FORWARD -i wlan0 -o uap0 -m state --state RELATED,ESTABLISHED -j ACCEPT
+	iptables -A FORWARD -i uap0 -o wlan0 -j ACCEPT
+	iptables-save > /etc/iptables/rules.v4
+    fi
+}
+
+function restart_services {
+    systemctl restart dnsmasq
+    systemctl restart hostapd
+}
+
+install_device && \
+    enable_station && \
+    packages && \
+    copy_ap_files && \
+    bridge && \
+    restart_services

apst/files/self-installer-header.sh

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+#!/bin/bash
+echo ""
+echo "Self Extracting Installer"
+echo ""
+
+export TMPDIR=`mktemp -d /tmp/selfextract.XXXXXX`
+
+ARCHIVE=`awk '/^__ARCHIVE_BELOW__/ {print NR + 1; exit 0; }' $0`
+
+tail -n+$ARCHIVE $0 | tar xzv -C $TMPDIR
+
+CDIR=`pwd`
+cd $TMPDIR
+./installer "$@"
+
+cd $CDIR
+rm -rf $TMPDIR
+
+exit 0
+
+__ARCHIVE_BELOW__

apst/make-self-installer.sh

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+#!/bin/bash
+#
+# Remake self-installer.sh after making any changes to etc/* or files/*
+#
+mkdir /tmp/se
+cp -r etc /tmp/se/etc
+cp files/installer /tmp/se
+(cd /tmp/se; tar zcf /tmp/files.tar.gz .)
+rm -rf /tmp/se
+cat files/self-installer-header.sh /tmp/files.tar.gz > self-installer.sh
+chmod +x self-installer.sh
+rm -f /tmp/files.tar.gz
+

dnshostname/dnshostname.json

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+{
+  "name": "dnshostname",
+  "text": "Set hostname to %1",
+  "script": "sethostname.sh",
+  "args": [
+    {
+      "type": "text",
+      "default": "raspberrypi",
+      "maxLength":0
+    }
+  ],
+  "network": false,
+  "continue": true,
+  "type": "setting",
+  "category":"setting",
+  "supportedOperatingSystems": [
+    "raspbian-pibakery.img",
+    "raspbian-lite-pibakery.img"
+  ],
+  "shortDescription":"Change the full hostname of the Raspberry Pi",
+  "longDescription":"By default, the hostname of the Raspberry Pi is \"raspberry\". If you've got multiple Raspberry Pis, you'll want to set each of them to a unique name to avoid confusion, and you may want to change your hostname anyway. THIS BLOCK ALSO CHANGES THE DNS NAME THAT IS BROADCASTED."
+}

dnshostname/sethostname.sh

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+#!/bin/bash
+
+raspi-config nonint do_hostname "$1"
+hostname -b "$1"
+systemctl restart avahi-daemon

nodejs/node-install.sh

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+#!/bin/bash
+
+version="$1"
+
+curl -sL https://deb.nodesource.com/setup_$version | sudo bash -
+apt-get install nodejs -y
+

nodejs/nodejs.json

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+{
+  "name": "nodejs",
+  "text": "Install NodeJS\\nversion: %1\\nRequires internet connection",
+  "script": "node-install.sh",
+  "args": [
+    {
+      "type": "menu",
+      "options": ["4.x", "5.x", "6.x", "7.x", "8.x", "9.x"]
+    }
+  ],
+  "network": true,
+  "continue": true,
+  "type": "software",
+  "category":"software",
+  "supportedOperatingSystems": [
+    "raspbian-pibakery.img",
+    "raspbian-lite-pibakery.img"
+  ],
+  "shortDescription":"Install NodeJS",
+  "longDescription":"Install ytour favorite version of node."
+}