This guide is based on Alpine 3.13 Distribution.
Getting MongoDB
Install MongoDB with package manager.
$ sudo apk update
$ sudo apk add mongodb
Run MongoDB server.
$ mkdir -p ./data/db
$ mongod --dbpath ./data/db
Setting up TUN device (No persistent after rebooting)
Create the TUN device. Interface name will be ogstun.
$ sudo apk add iproute2
$ sudo ip tuntap add name ogstun mode tun
$ ip link show
You are now ready to set the IP address on TUN device.
$ sudo ip addr add 10.45.0.1/16 dev ogstun
$ sudo ip addr add 2001:db8:cafe::1/48 dev ogstun
Make sure it is set up properly.
$ sudo ip link set ogstun up
$ ip link show
Tip: The script provided in $GIT_REPO/misc/netconf.sh makes it easy to configure the TUN device as follows: $ sudo ./misc/netconf.sh
Building Open5GS
Install the depedencies for building the source code.
$ sudo apk add alpine-sdk bison flex git cmake meson bash sudo linux-headers bsd-compat-headers yaml-dev lksctp-tools-dev gnutls-dev libgcrypt-dev libidn-dev mongo-c-driver-dev libmicrohttpd-dev curl-dev nghttp2-dev talloc-dev
Git clone.
$ git clone https://github.com/open5gs/open5gs
To compile with meson:
$ cd open5gs
$ meson build --prefix=`pwd`/install
$ ninja -C build
Check whether the compilation is correct.
$ ./build/tests/attach/attach ## EPC Only
$ ./build/tests/registration/registration ## 5G Core Only
Run all test programs as below.
$ cd build
$ meson test -v
Tip: You can also check the result of ninja -C build test with a tool that captures packets. If you are running wireshark, select the loopback interface and set FILTER to s1ap || gtpv2 || pfcp || diameter || gtp || ngap || http2.data.data || http2.headers. You can see the virtually created packets. testattach.pcapng/testregistration.pcapng
You need to perform the installation process.
$ cd build
$ ninja install
$ cd ../
Building WebUI of Open5GS
Node.js is required to build WebUI of Open5GS
$ sudo apk add nodejs
Install the dependencies to run WebUI
$ cd webui
$ npm ci
The WebUI runs as an npm script.
$ npm run dev