mirror of
https://github.com/alexbelgium/hassio-addons.git
synced 2026-03-30 10:34:31 +02:00
54c7a2ba10
The upstream haugene/transmission-openvpn v5.4.0 image uses systemd-resolved via D-Bus in its update-resolv-conf script, which fails in HA containers that lack systemd/D-Bus with 'sd_bus_open_system: No such file or directory'. This adds a custom update-resolv-conf script that directly modifies /etc/resolv.conf by parsing OpenVPN's foreign_option_* environment variables. Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>
58 lines
1.8 KiB
Bash
Executable File
58 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# OpenVPN update-resolv-conf replacement for containerized environments
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# The default script from the base image uses systemd-resolved via D-Bus,
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# which is unavailable in Home Assistant add-on containers.
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# This script directly updates /etc/resolv.conf instead.
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[ "$script_type" ] || exit 0
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case "$script_type" in
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up)
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# Backup original resolv.conf
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if [ ! -f /etc/resolv.conf.ovpn-bak ]; then
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cp /etc/resolv.conf /etc/resolv.conf.ovpn-bak 2>/dev/null || true
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fi
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dns_servers=""
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dns_domain=""
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dns_search=""
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# Parse foreign_option_* environment variables set by OpenVPN
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for optionname in ${!foreign_option_*}; do
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option="${!optionname}"
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case "$option" in
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dhcp-option\ DNS\ *)
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dns_servers="${dns_servers} ${option#dhcp-option DNS }"
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;;
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dhcp-option\ DOMAIN\ *)
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dns_domain="${option#dhcp-option DOMAIN }"
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;;
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dhcp-option\ DOMAIN-SEARCH\ *)
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dns_search="${dns_search} ${option#dhcp-option DOMAIN-SEARCH }"
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;;
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esac
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done
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# Write new resolv.conf with VPN DNS servers
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if [ -n "$dns_servers" ]; then
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{
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for server in $dns_servers; do
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echo "nameserver $server"
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done
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[ -n "$dns_domain" ] && echo "domain $dns_domain"
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[ -n "$dns_search" ] && echo "search${dns_search}"
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} > /etc/resolv.conf
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fi
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;;
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down)
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# Restore original resolv.conf
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if [ -f /etc/resolv.conf.ovpn-bak ]; then
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cp /etc/resolv.conf.ovpn-bak /etc/resolv.conf
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rm -f /etc/resolv.conf.ovpn-bak
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fi
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;;
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esac
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exit 0
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