Alpine 3.17.1

modules/data.lua

@@ -31,7 +31,7 @@ mount '{{path}}' '{{mountpoint}}' -o bind,umask=100,uid={{uid}},gid={{gid}} || e
 		local link = links[i]
 		string = string .. t([[
 mkdir -p '{{dirname}}' || exit 1
-ln -s '{{target}}' '{{path}}' || exit 1
+ln -sf '{{target}}' '{{path}}' || exit 1
 ]],
 			{ dirname = utils.dirname(link.path),
 			target = link.target, path = link.path }

modules/nftables.lua

@@ -0,0 +1,95 @@
+modules.nftables = {}
+add_packages({ "nftables" })
+add_file("/etc/nftables.nft", [[
+#!/usr/sbin/nft -f
+
+flush ruleset
+
+table inet filter {
+	chain input {
+		type filter hook input priority 0; policy drop;
+
+		iifname lo accept \
+		comment "Accept any localhost traffic"
+
+		ct state { established, related } accept \
+		comment "Accept traffic originated from us"
+
+		ct state invalid drop \
+		comment "Drop invalid connections"
+
+		tcp dport 113 reject with icmpx type port-unreachable \
+		comment "Reject AUTH to make it fail fast"
+
+		ip protocol icmp icmp type {
+			echo-reply,  # type 0
+			destination-unreachable,  # type 3
+			echo-request,  # type 8
+			time-exceeded,  # type 11
+			parameter-problem,  # type 12
+		} accept \
+		comment "Accept ICMP"
+
+		ip6 nexthdr icmpv6 icmpv6 type {
+			destination-unreachable,  # type 1
+			packet-too-big,  # type 2
+			time-exceeded,  # type 3
+			parameter-problem,  # type 4
+			echo-request,  # type 128
+			echo-reply,  # type 129
+		} accept \
+		comment "Accept basic IPv6 functionality"
+
+		ip6 nexthdr icmpv6 icmpv6 type {
+			nd-router-solicit,  # type 133
+			nd-router-advert,  # type 134
+			nd-neighbor-solicit,  # type 135
+			nd-neighbor-advert,  # type 136
+		} ip6 hoplimit 255 accept \
+		comment "Allow IPv6 SLAAC"
+
+		ip6 nexthdr icmpv6 icmpv6 type {
+			mld-listener-query,  # type 130
+			mld-listener-report,  # type 131
+			mld-listener-reduction,  # type 132
+			mld2-listener-report,  # type 143
+		} ip6 saddr fe80::/10 accept \
+		comment "Allow IPv6 multicast listener discovery on link-local"
+
+		ip6 saddr fe80::/10 udp sport 547 udp dport 546 accept \
+		comment "Accept DHCPv6 replies from IPv6 link-local addresses"
+
+		tcp dport 80 counter accept \
+		comment "Allow HTTP"
+	}
+
+	chain forward {
+		type filter hook forward priority 0; policy drop;
+	}
+
+	chain output {
+		type filter hook output priority 0; policy accept;
+	}
+}
+
+# The state of stateful objects saved on the nftables service stop.
+include "/var/lib/nftables/*.nft"
+
+]])
+
+modules.runit.add_service("nftables", [[#!/bin/sh
+if [ ! -r /etc/nftables.nft ]; then
+	echo "No config, dropping everything"
+	nft -f /dev/stdin <<-EOF
+		flush ruleset
+		table inet filter {
+		   chain input { type filter hook input priority 0; policy drop; }
+		   chain forward { type filter hook forward priority 0; policy drop; }
+		   chain output { type filter hook output priority 0; policy drop; }
+		}
+	EOF
+	exit 1
+fi
+nft -f /etc/nftables.nft
+exec sleep infinity
+]])

modules/runit.lua

@@ -2,6 +2,7 @@ mkdir("/etc/runit/runsvdir/default")
 add_symlink("/etc/runit/runsvdir/current", "/etc/runit/runsvdir/default")
 add_symlink("/etc/service", "/etc/runit/runsvdir/current")
 add_symlink("/etc/runit/stopit", "/run/runit/stopit")
+add_symlink("/etc/runit/reboot", "/run/runit/reboot")
 
 local t = require "../utils/templater"
 local function add_executable(path, script)
@@ -361,9 +362,17 @@ if [ -z "$VIRTUALIZATION" ]; then
 fi
 ]])
 
+-- https://wiki.gentoo.org/wiki/Runit#Reboot_and_shutdown
+add_executable("/usr/local/sbin/rpoweroff", [[#!/bin/sh
+runit-init 0]])
+add_executable("/usr/local/sbin/rreboot", [[#!/bin/sh
+runit-init 6]])
+
 add_packages({ "runit", "eudev" })
 modules.runit.add_service("getty-tty1", [[#!/bin/sh
 exec chpst -P getty 38400 tty1 linux]], false)
 modules.runit.add_service("getty-tty2", [[#!/bin/sh
 exec chpst -P getty 38400 tty2 linux]], false)
+modules.runit.add_service("getty-ttyS0", [[#!/bin/sh
+exec chpst -P getty 38400 ttyS0 linux]], false)
 

qemu.sh

@@ -15,4 +15,4 @@ qemu-system-x86_64 -enable-kvm -m 2048 \
 	-net nic,model=virtio-net-pci \
 	-net user,hostfwd=tcp:10.69.0.2:8080-:80 \
 	-kernel boot/vmlinuz-virt -initrd boot/initramfs-virt \
-	-append "root=/dev/sda rootfstype=squashfs modules=ext4 init=/sbin/runit-init $append" $qemuappend
+	-append "root=/dev/sda rootfstype=squashfs modules=ext4 quiet init=/sbin/runit-init $append" $qemuappend

setup.lua

@@ -1,8 +1,8 @@
 local utils = require("utils")
 local alpine = require("alpine")
 
-local alpine_base_version = "3.16"
-local alpine_version = alpine_base_version..".0"
+local alpine_base_version = "3.17"
+local alpine_version = alpine_base_version..".1"
 local packages = {
 	"alpine-baselayout",
 	-- "alpine-conf",
@@ -49,6 +49,7 @@ module "hostname"
 module "dhcpcd"
 module "ntpsec"
 module "nginx"
+module "nftables"
 
 print("=> Installing and upgrading packages...")
 utils.expect_nil(alpine.make_world(root, packages))