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Make cloud-init optional and add pre-flight checks

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This commit is contained in:
Mateusz Kwiatkowski
2019-01-28 12:20:11 +01:00
parent 6df1c74a7d
commit 76ae90be71
1 changed files with 28 additions and 16 deletions
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44
lib/vm-core
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@@ -1,3 +1,4 @@
#!/bin/sh
#-------------------------------------------------------------------------+
# Copyright (C) 2016 Matt Churchyard (churchers@gmail.com)
# All rights reserved
@@ -97,9 +98,9 @@ core::list(){
core::create(){
local _name _opt _size _vmdir _disk _disk_dev _num=0
local _zfs_opts _disk_size _template="default" _ds="default" _ds_path _img _cpu _memory _uuid
local _cloud_init_dir _ssh_public_key _ssh_key_file
local _enable_cloud_init _cloud_init_dir _ssh_public_key _ssh_key_file
while getopts d:t:s:i:c:m:k: _opt ; do
while getopts d:t:s:i:c:m:Ck: _opt ; do
case $_opt in
t) _template=${OPTARG} ;;
s) _size=${OPTARG} ;;
@@ -108,6 +109,7 @@ core::create(){
m) _memory=${OPTARG} ;;
i) _img=${OPTARG} ;;
k) _ssh_key_file=${OPTARG} ;;
C) _enable_cloud_init='true' ;;
*) util::usage ;;
esac
@@ -136,8 +138,16 @@ core::create(){
# make sure template has a disk before we start creating anything
[ -z "${_disk}" ] && util::err "template is missing disk0_name specification"
if [ -n "${_enable_cloud_init}" ]; then
if ! which genisoimage > /dev/null; then
util::err "Error: genisoimage is required to work with cloud init! Run 'pkg install cdrkit-genisoimage'."
fi
fi
# get ssh public key for cloud-init from file
if [ -n "${_ssh_key_file}" ]; then
[ -z "${_enable_cloud_init}" ] && util::err "cloud-init is required for injecting public key. Use -C to enable it."
[ ! -r "${_ssh_key_file}" ] && util::err "can't read file with public key (${_ssh_key_file})"
_ssh_public_key="$(cat "${_ssh_key_file}")"
fi
@@ -195,32 +205,34 @@ core::create(){
config::get "_disk_size" "disk${_num}_size" "20G"
done
# create disk with metadata for cloud-init
_cloud_init_dir="${VM_DS_PATH}/${_name}/.cloud-init"
mkdir -p "${_cloud_init_dir}"
if [ -n "${_enable_cloud_init}" ]; then
# create disk with metadata for cloud-init
_cloud_init_dir="${VM_DS_PATH}/${_name}/.cloud-init"
mkdir -p "${_cloud_init_dir}"
cat << EOF > "${_cloud_init_dir}/meta-data"
cat << EOF > "${_cloud_init_dir}/meta-data"
instance-id: ${_uuid}
local-hostname: ${_name}
EOF
if [ -n "${_ssh_public_key}" ]; then
cat << EOF > "${_cloud_init_dir}/user-data"
cat << EOF > "${_cloud_init_dir}/user-data"
#cloud-config
ssh_authorized_keys:
- ${_ssh_public_key}
resize_rootfs: True
manage_etc_hosts: localhost
EOF
if [ -n "${_ssh_public_key}" ]; then
cat << EOF >> "${_cloud_init_dir}/user-data"
ssh_authorized_keys:
- ${_ssh_public_key}
EOF
fi
genisoimage -output "${VM_DS_PATH}/${_name}/seed.iso" -volid cidata -joliet -rock "${_cloud_init_dir}/meta-data" "${_cloud_init_dir}/user-data" > /dev/null 2>&1 || util::err "Can't write seed.iso for cloud-init"
config::set "${_name}" "disk${_num}_type" "ahci-cd"
config::set "${_name}" "disk${_num}_name" "seed.iso"
config::set "${_name}" "disk${_num}_dev" "file"
fi
genisoimage -output "${VM_DS_PATH}/${_name}/seed.iso" -volid cidata -joliet -rock "${_cloud_init_dir}/meta-data" "${_cloud_init_dir}/user-data" > /dev/null 2>&1 || util:err "Can't write seed.iso for cloud-init"
config::set "${_name}" "disk${_num}_type" "ahci-cd"
config::set "${_name}" "disk${_num}_name" "seed.iso"
config::set "${_name}" "disk${_num}_dev" "file"
exit 0
}