This fork is based on great job done by Sergio R. I have updated this image to allow us to turn our Rpi3 on an Access Point.
Designed to work on Raspberry Pi (arm) using as base image alpine linux (very little size).
Since my last change on ISP, they put a cable modem with a horrible Wireless, it drops lots of packets, and I didn't want to put an extra AP or wireless router.
Most of the time use wireless devices on same room so I decided to try to convert my current Pi on a small Access Point using a small USB dongle.
On the host system, the ralink firmware (in my case) should be installed so you can use it on AP mode. On debian/raspbian:
apt-get install firmware-ralink
Make sure your USB support AP mode:
# iw list
...
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* WDS
* monitor
* mesh point
...
Set country regulations, for excample, to Spain set:
# iw reg set ES
country ES: DFS-ETSI
(2400 - 2483 @ 40), (N/A, 20), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR
(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS
(5470 - 5725 @ 160), (N/A, 26), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
For modification, testings, etc.. there is already a Makefile. So you can make run to start a sample ssid with a simple password.
I've already uploaded the image to docker hubs, so you can run it from ther like this:
sudo docker run -d -t \
-e INTERFACE=wlan0 \
-e CHANNEL=6 \
-e SSID=runssid \
-e APADDR=192.168.254.1 \
-e SUBNET=192.168.254.0 \
-e WPA_PASSPHRASE=passw0rd \
-e OUTGOINGS=eth0 \
--privileged \
--net host \
dedosmedia/rpi3_ap:1.0
But before this, hostap usually requires that wlan0 interface to be already up, so before docker run take the interface up:
/sbin/ifconfig wlan0 192.168.254.1/24 up
Also you should have a driver to enable hostap on your USB wifi
apt-get install firmware-ralink
Improve README.md