🌴 Sync 2026-03-05 23:51:42

docker-lan-bridge/Makefile

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+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=docker-lan-bridge
+PKG_VERSION:=1.0.1
+PKG_RELEASE:=1
+
+PKG_MAINTAINER:=jjm2473 <jjm2473@gmail.com>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/$(PKG_NAME)
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=Docker LAN Bridge
+  PKGARCH:=all
+  DEPENDS:=+ip-full
+  URL:=https://github.com/linkease/openwrt-app-actions
+endef
+
+define Package/$(PKG_NAME)/description
+  Facilitates bridging Docker containers to the LAN
+endef
+
+define Build/Prepare
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/$(PKG_NAME)/install
+	$(INSTALL_DIR) $(1)/etc/uci-defaults $(1)/etc/init.d $(1)/etc/hotplug.d/net
+	$(INSTALL_CONF) ./files/docker-lan.uci $(1)/etc/uci-defaults/docker-lan
+	$(INSTALL_BIN) ./files/docker-lan.init $(1)/etc/init.d/docker-lan
+	$(INSTALL_DATA) ./files/docker-lan.hotplug $(1)/etc/hotplug.d/net/11-docker-lan
+endef
+
+$(eval $(call BuildPackage,docker-lan-bridge))

docker-lan-bridge/files/docker-lan.hotplug

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+
+[ "$ACTION" = add -a "$DEVICENAME" = br-lan ] && ip link set docker-lan-d master docker-lan

docker-lan-bridge/files/docker-lan.init

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+#!/bin/sh /etc/rc.common
+
+START=15
+
+boot() {
+	ip link add docker-lan type bridge
+	ip link add docker-lan-op type veth peer name docker-lan-d
+	ip link set docker-lan-d master docker-lan
+	ip link set docker-lan-op up
+	ip link set docker-lan-d up
+}
+
+start() {
+	# in case docker-lan was destroyed
+	ip link add docker-lan type bridge 2>/dev/null
+	ip link set docker-lan-d master docker-lan 2>/dev/null
+
+	docker network inspect docker-lan -f '{{.Name}}' >/dev/null 2>&1 && return 0
+
+	local lanip=`ip addr show dev br-lan | grep -m1 'inet ' | head -1 | sed -nE 's#.*inet ([0-9\.]*)/([0-9]*) .*#\1#p'`
+	local dockerip=172.25.1
+	if [ -n "$lanip" ]; then
+		local lanip3=`echo "$lanip" | cut -d. -f3`
+		local lanip4=`echo "$lanip" | cut -d. -f4`
+		dockerip=172.$(( $lanip3 & 7 | 24 )).$lanip4
+	fi
+
+	docker network create --subnet $dockerip.0/24 --gateway $dockerip.1 --ip-range $dockerip.0/25 \
+		-d bridge -o com.docker.network.bridge.name=docker-lan docker-lan
+}

docker-lan-bridge/files/docker-lan.uci

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+#!/bin/sh
+
+/etc/init.d/docker-lan boot 2>/dev/null
+
+uci_find_section()
+{
+	local config="$1"
+	local type="$2"
+	local key="$3"
+	local value="$4"
+	local section
+
+	uci show $config | grep -E '^'$config'\.[^\.]+\.'$key'='"'$value'"'$' | sed 's/\.'$key'='"'$value'"'$//' | while read section; do
+		[ "$type" = "`uci get "$section"`" ] && echo $section
+	done
+}
+
+section=`uci_find_section network device name br-lan | head -n1`
+if [ -n "$section" ]; then
+	uci get "$section.ports" | grep -wq docker-lan-op || uci add_list "$section.ports=docker-lan-op"
+else
+	ifnames="`uci get network.lan.device`"
+	if [ -n "$ifnames" ]; then
+		echo "$ifnames" | grep -wq docker-lan-op || {
+			ifnames="$ifnames docker-lan-op"
+			uci set network.lan.device="$ifnames"
+			uci set network.lan.type='bridge'
+		}
+	else
+		echo "uci get lan ports failed!" >&2
+		exit 1
+	fi
+fi
+uci commit network
+
+/etc/init.d/network reload
+
+exit 0