diff options
Diffstat (limited to 'release/tools/ec2.conf')
| -rw-r--r-- | release/tools/ec2.conf | 124 |
1 files changed, 28 insertions, 96 deletions
diff --git a/release/tools/ec2.conf b/release/tools/ec2.conf index f0665646088b..989e8a05a318 100644 --- a/release/tools/ec2.conf +++ b/release/tools/ec2.conf @@ -1,101 +1,47 @@ #!/bin/sh -# -# $FreeBSD$ -# - -# Packages to install into the image we're creating. This is a deliberately -# minimalist set, providing only the packages necessary to bootstrap further -# package installation as specified via EC2 user-data. -export VM_EXTRA_PACKAGES="${VM_EXTRA_PACKAGES} ec2-scripts \ - firstboot-freebsd-update firstboot-pkgs isc-dhcp44-client \ - ebsnvme-id" - -# Include the amazon-ssm-agent package in amd64 images, since some users want -# to be able to use it on systems which are not connected to the Internet. -# (It is not enabled by default, however.) This package does not exist for -# aarch64, so we have to be selective about when we install it. -if [ "${TARGET_ARCH}" = "amd64" ]; then - export VM_EXTRA_PACKAGES="${VM_EXTRA_PACKAGES} amazon-ssm-agent" -fi -# Set to a list of third-party software to enable in rc.conf(5). -export VM_RC_LIST="ec2_configinit ec2_fetchkey ec2_loghostkey firstboot_freebsd_update firstboot_pkgs ntpd dev_aws_disk" +# Packages which should be installed onto all EC2 AMIs: +# * ebsnvme-id, which is very minimal and provides important EBS-specific +# functionality, +# * amazon-ssm-agent (not enabled by default, but some users need to use +# it on systems not connected to the internet). +export VM_EXTRA_PACKAGES="${VM_EXTRA_PACKAGES} ebsnvme-id amazon-ssm-agent" + +# Services which should be enabled by default in rc.conf(5). +export VM_RC_LIST="dev_aws_disk ntpd" -# Build with a 4.9 GB UFS partition; the growfs rc.d script will expand +# Build with a 5.9 GB partition; the growfs rc.d script will expand # the partition to fill the root disk after the EC2 instance is launched. # Note that if this is set to <N>G, we will end up with an <N+1> GB disk -# image since VMSIZE is the size of the UFS partition, not the disk which -# it resides within. -export VMSIZE=5000m - -# No swap space; the ec2_ephemeralswap rc.d script will allocate swap -# space on EC2 ephemeral disks. (If they exist -- the T2 low-cost instances -# and the C4 compute-optimized instances don't have ephemeral disks. But -# it would be silly to bloat the image and increase costs for every instance -# just for those two families, especially since instances ranging in size -# from 1 GB of RAM to 60 GB of RAM would need different sizes of swap space -# anyway.) +# image since VMSIZE is the size of the filesystem partition, not the disk +# which it resides within. +export VMSIZE=6000m + +# No swap space; it doesn't make sense to provision any as part of the disk +# image when we could be launching onto a system with anywhere between 0.5 +# and 4096 GB of RAM. export NOSWAP=YES -vm_extra_pre_umount() { - # The firstboot_pkgs rc.d script will download the repository - # catalogue and install or update pkg when the instance first - # launches, so these files would just be replaced anyway; removing - # them from the image allows it to boot faster. +ec2_common() { + # Delete the pkg package and the repo database; they will likely be + # long out of date before the EC2 instance is launched. mount -t devfs devfs ${DESTDIR}/dev chroot ${DESTDIR} ${EMULATOR} env ASSUME_ALWAYS_YES=yes \ /usr/sbin/pkg delete -f -y pkg umount ${DESTDIR}/dev rm ${DESTDIR}/var/db/pkg/repo-*.sqlite - # The size of the EC2 root disk can be configured at instance launch - # time; expand our filesystem to fill the disk. - echo 'growfs_enable="YES"' >> ${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 - - # Unless the system has been configured via EC2 user-data, the user - # will need to SSH in to do anything. - echo 'sshd_enable="YES"' >> ${DESTDIR}/etc/rc.conf - - # 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="awscli"' >> ${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 - # Turn off IPv6 Duplicate Address Detection; the EC2 networking # configuration makes it unnecessary. echo 'net.inet6.ip6.dad_count=0' >> ${DESTDIR}/etc/sysctl.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 - - # The EC2 console is output-only, so while printing a backtrace can - # be useful, there's no point dropping into a debugger or waiting - # for a keypress. - echo 'debug.trace_on_panic=1' >> ${DESTDIR}/boot/loader.conf - echo 'debug.debugger_on_panic=0' >> ${DESTDIR}/boot/loader.conf - echo 'kern.panic_reboot_wait_time=0' >> ${DESTDIR}/boot/loader.conf - - # The console is not interactive, so we might as well boot quickly. + # Booting quickly is more important than giving users a chance to + # access the boot loader via the serial port. echo 'autoboot_delay="-1"' >> ${DESTDIR}/boot/loader.conf echo 'beastie_disable="YES"' >> ${DESTDIR}/boot/loader.conf - # Tell gptboot not to wait 3 seconds for a keypress which won't - # arrive either. + # Tell gptboot not to wait 3 seconds for a keypress which will + # never arrive. printf -- "-n\n" > ${DESTDIR}/boot.config # The emulated keyboard attached to EC2 instances is inaccessible to @@ -122,17 +68,14 @@ EOF # historical "nvd" driver. echo 'hw.nvme.use_nvd="0"' >> ${DESTDIR}/boot/loader.conf - # Disable ChallengeResponseAuthentication according to EC2 - # requirements. + # Disable KbdInteractiveAuthentication according to EC2 requirements. sed -i '' -e \ - 's/^#ChallengeResponseAuthentication yes/ChallengeResponseAuthentication no/' \ + 's/^#KbdInteractiveAuthentication yes/KbdInteractiveAuthentication no/' \ ${DESTDIR}/etc/ssh/sshd_config - # Use FreeBSD Update and Portsnap mirrors hosted in AWS + # Use FreeBSD Update mirrors hosted in AWS sed -i '' -e 's/update.FreeBSD.org/aws.update.FreeBSD.org/' \ ${DESTDIR}/etc/freebsd-update.conf - sed -i '' -e 's/portsnap.FreeBSD.org/aws.portsnap.FreeBSD.org/' \ - ${DESTDIR}/etc/portsnap.conf # Use the NTP service provided by Amazon sed -i '' -e 's/^pool/#pool/' \ @@ -156,19 +99,8 @@ echo "-nfsv4,minorversion=1,oneopenown ${FS}.efs.${REGION}.amazonaws.com:/" EOF chmod 755 ${DESTDIR}/etc/autofs/special_efs - # The first time the AMI boots, the installed "first boot" scripts - # should be allowed to run: - # * ec2_configinit (download and process EC2 user-data) - # * ec2_fetchkey (arrange for SSH using the EC2-provided public key) - # * growfs (expand the filesystem to fill the provided disk) - # * firstboot_freebsd_update (install critical updates) - # * firstboot_pkgs (install packages) + # The first time the AMI boots, run "first boot" scripts. touch ${DESTDIR}/firstboot - if ! [ -z "${QEMUSTATIC}" ]; then - rm -f ${DESTDIR}/${EMULATOR} - fi - rm -f ${DESTDIR}/etc/resolv.conf - return 0 } |