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Add bits for building EC2 disk images. Make logic for uploading these

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to create EC2 AMIs will come in a later commit.
This commit is contained in:
Colin Percival 2015-03-31 01:28:33 +00:00
parent 7ef00d7884
commit f65557efc4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=280879
2 changed files with 87 additions and 0 deletions
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4
release/Makefile.vm
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@ -16,11 +16,15 @@ QCOW2_DESC= Qemu, KVM disk image
RAW_DESC= Unformatted raw disk image
CLOUDWARE?= AZURE \
EC2 \
GCE \
OPENSTACK
AZURE_FORMAT= vhdf
AZURE_DESC= Microsoft Azure platform image
AZURE_DISK= ${OSRELEASE}.${AZURE_FORMAT}
EC2_FORMAT= raw
EC2_DESC= Amazon EC2 image
EC2_DISK= ${OSRELEASE}.${EC2_FORMAT}
GCE_FORMAT= raw
GCE_DESC= Google Compute Engine image
GCE_DISK= disk.${GCE_FORMAT}

83
release/tools/ec2.conf Normal file
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@ -0,0 +1,83 @@
#!/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="ec2-scripts firstboot-freebsd-update firstboot-pkgs"
# Set to a list of third-party software to enable in rc.conf(5).
export VM_RC_LIST="ec2_configinit ec2_fetchkey ec2_ephemeralswap ec2_loghostkey firstboot_freebsd_update firstboot_pkgs"
# Build with a 1.5 GB UFS 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=1536M
# 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.)
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.
pkg -c ${DESTDIR} delete -f pkg
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.
echo 'ifconfig_DEFAULT="SYNCDHCP"' >> ${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
# 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}/etc/sysctl.conf
echo 'debug.debugger_on_panic=0' >> ${DESTDIR}/etc/sysctl.conf
echo 'kern.panic_reboot_wait_time=0' >> ${DESTDIR}/etc/sysctl.conf
# The console is not interactive, so we might as well boot quickly.
echo 'autoboot_delay="-1"' >> ${DESTDIR}/boot/loader.conf
echo 'beastie_disable="YES"' >> ${DESTDIR}/boot/loader.conf
# The EC2 console is an emulated serial port.
echo 'console="comconsole"' >> ${DESTDIR}/boot/loader.conf
# Some older EC2 hardware used a version of Xen with a bug in its
# emulated serial port. It is not clear if EC2 still has any such
# nodes, but apply the workaround just in case.
echo 'hw.broken_txfifo="1"' >> ${DESTDIR}/boot/loader.conf
# 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)
touch ${DESTDIR}/firstboot
return 0
}