Draft: offline monitor app

Serve an offline monitor app on a device to allow one to monitor the services from that device without internet connection, from the LAN.

Steps to do currently

• slapos proxy must add monitor-interface-url, and give special IPv6 URL as monitor-base-url to the SR to be monitored
• Root nginx proxy: Put nginx-proxy/nginx.conf in /opt/nginx as well as a certificate and key, and run nginx as root
• Enter the following monitor setup URL : https://[OFFLINE_MONITOR_IPV6]:8088/offline-monitor/#page=settings_configurator&url=https://[OFFLINE_MONITOR_IPV6]:8088/monitor-base-url/public/feeds&username=admin&password=PASSWORD
• Redistribute IPv6 in re6st conf:

daemon "exec dnsmasq --conf-file=/dev/null -p0 -k8 - -i $re6stnet_iface  -F ${re6stnet_subnet%/*},ra-only,$((${re6stnet_subnet#*/}>64 ? ${re6stnet_subnet#*/} : 64)),1d"
main-interface enp0s31f6
interface enp0s31f6

• Put these input parameters:

<?xml version="1.0" encoding="UTF-8"?>
<instance>
    <parameter id="download_url">https://officejs.erp5.net/document_module/20241218-47F9BCC3/Base_download</parameter>
    <parameter id="title">Offline Monitor App</parameter>
</instance>

Nginx Proxy

• http://[SERVICE_IPV6]:8081 --> http://[OFFLINE_MONITOR_IPV6]:8088/monitor-base-url/
• https://[OFFLINE_MONITOR_IPV6]:8196 --> http://[OFFLINE_MONITOR_IPV6]:8088/offline-monitor/

IPV6 addresses:

• SERVICE_IPV6: IPv6 of partition containing service to monitor
• OFFLINE_MONITOR_IPV6: IPv6 of partition containing offline monitor app

/cc @tomo @romain