HardenedBSD/release/tools/ec2-base.conf
Colin Percival fada6e2389 EC2: Split off reusable configuration bits
Split ec2-base.conf into ec2-base.conf and a reusable ec2.conf,
similar to how Vagrant flavours share a common vagrant.conf.

releng/14.0 candidate.

Discussed with:	gjb
MFC after:	5 days
Sponsored by:	https://www.patreon.com/cperciva
Differential Revision:	https://reviews.freebsd.org/D41792
2023-09-28 15:18:46 -07:00

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#!/bin/sh
. ${WORLDDIR}/release/tools/ec2.conf
# Packages to install into the image we're creating. In addition to packages
# present on all EC2 AMIs, we install:
# * ec2-scripts, which provides a range of EC2ification startup scripts,
# * firstboot-freebsd-update, to install security updates at first boot,
# * firstboot-pkgs, to install packages at first boot, and
# * isc-dhcp44-client, used for IPv6 network setup.
export VM_EXTRA_PACKAGES="${VM_EXTRA_PACKAGES} ec2-scripts \
firstboot-freebsd-update firstboot-pkgs isc-dhcp44-client"
# Services to enable in rc.conf(5).
export VM_RC_LIST="${VM_RC_LIST} ec2_configinit ec2_ephemeral_swap \
ec2_fetchkey ec2_loghostkey firstboot_freebsd_update firstboot_pkgs \
growfs sshd"
vm_extra_pre_umount() {
# The AWS CLI tools are generally useful, and small enough that they
# will download quickly; but users will often override this setting
# via EC2 user-data.
echo 'firstboot_pkgs_list="devel/py-awscli"' >> ${DESTDIR}/etc/rc.conf
# EC2 instances use DHCP to get their network configuration. IPv6
# requires accept_rtadv.
echo 'ifconfig_DEFAULT="SYNCDHCP accept_rtadv"' >> ${DESTDIR}/etc/rc.conf
# Enable IPv6 on all interfaces, and spawn DHCPv6 via rtsold
echo 'ipv6_activate_all_interfaces="YES"' >> ${DESTDIR}/etc/rc.conf
echo 'rtsold_enable="YES"' >> ${DESTDIR}/etc/rc.conf
echo 'rtsold_flags="-M /usr/local/libexec/rtsold-M -a"' >> ${DESTDIR}/etc/rc.conf
# Provide a script which rtsold can use to launch DHCPv6
mkdir -p ${DESTDIR}/usr/local/libexec
cat > ${DESTDIR}/usr/local/libexec/rtsold-M <<'EOF'
#!/bin/sh
/usr/local/sbin/dhclient -6 -nw -N -cf /dev/null $1
EOF
chmod 755 ${DESTDIR}/usr/local/libexec/rtsold-M
# Any EC2 ephemeral disks seen when the system first boots will
# be "new" disks; there is no "previous boot" when they might have
# been seen and used already.
touch ${DESTDIR}/var/db/ec2_ephemeral_diskseen
# Configuration common to all EC2 AMIs
ec2_common
return 0
}