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#!/bin/sh
# shellcheck disable=2015,2039,2162,2166,3043
#
# ds-identify is configured via /etc/cloud/ds-identify.cfg
# or on the kernel command line. It takes the following inputs:
#
# datasource: can specify the datasource that should be used.
# kernel command line option: ci.datasource=<dsname> or ci.ds=<dsname>
# example line in /etc/cloud/ds-identify.cfg:
# datasource: Ec2
#
# policy: a string that indicates how ds-identify should operate.
#
# The format is:
# <mode>,found=value,maybe=value,notfound=value
# default setting is:
# search,found=all,maybe=all,notfound=disabled
#
# kernel command line option: ci.di.policy=<policy>
# example line in /etc/cloud/ds-identify.cfg:
# policy: search,found=all,maybe=none,notfound=disabled
#
#
# Mode:
# disabled: disable cloud-init
# enabled: enable cloud-init.
# ds-identify writes no config and just exits success.
# the caller (cloud-init-generator) then enables cloud-init to
# run just without any aid from ds-identify.
# search: determine which source or sources should be used
# and write the result (datasource_list) to
# /run/cloud-init/cloud.cfg
# report: basically 'dry run' for search. results are still written
# to the file, but are namespaced under the top level key
# 'di_report' Thus cloud-init is not affected, but can still
# see the result.
#
# found,maybe,notfound:
# found: (default=all)
# first: use the first found do no further checking
# all: enable all DS_FOUND
#
# maybe: (default=all)
# if nothing returned 'found', then how to handle maybe.
# no network sources are allowed to return 'maybe'.
# all: enable all DS_MAYBE
# none: ignore any DS_MAYBE
#
# notfound: (default=disabled)
# disabled: disable cloud-init
# enabled: enable cloud-init
#
# ci.datasource.ec2.strict_id: (true|false|warn[,0-9])
# if ec2 datasource does not strictly match,
# return not_found if true
# return maybe if false or warn*.
#
set -u
set -f
UNAVAILABLE="unavailable"
CR="
"
ERROR="error"
DI_ENABLED="enabled"
DI_DISABLED="disabled"
DI_DEBUG_LEVEL="${DEBUG_LEVEL:-1}"
PATH_ROOT=${PATH_ROOT:-""}
PATH_RUN=${PATH_RUN:-"${PATH_ROOT}/run"}
PATH_SYS_CLASS_DMI_ID=${PATH_SYS_CLASS_DMI_ID:-${PATH_ROOT}/sys/class/dmi/id}
PATH_SYS_HYPERVISOR=${PATH_SYS_HYPERVISOR:-${PATH_ROOT}/sys/hypervisor}
PATH_SYS_CLASS_BLOCK=${PATH_SYS_CLASS_BLOCK:-${PATH_ROOT}/sys/class/block}
PATH_DEV_DISK="${PATH_DEV_DISK:-${PATH_ROOT}/dev/disk}"
PATH_VAR_LIB_CLOUD="${PATH_VAR_LIB_CLOUD:-${PATH_ROOT}/var/lib/cloud}"
PATH_DI_CONFIG="${PATH_DI_CONFIG:-${PATH_ROOT}/etc/cloud/ds-identify.cfg}"
PATH_PROC_CMDLINE="${PATH_PROC_CMDLINE:-${PATH_ROOT}/proc/cmdline}"
PATH_PROC_1_CMDLINE="${PATH_PROC_1_CMDLINE:-${PATH_ROOT}/proc/1/cmdline}"
PATH_PROC_1_ENVIRON="${PATH_PROC_1_ENVIRON:-${PATH_ROOT}/proc/1/environ}"
PATH_PROC_UPTIME=${PATH_PROC_UPTIME:-${PATH_ROOT}/proc/uptime}
PATH_ETC_CLOUD="${PATH_ETC_CLOUD:-${PATH_ROOT}/etc/cloud}"
PATH_ETC_CI_CFG="${PATH_ETC_CI_CFG:-${PATH_ETC_CLOUD}/cloud.cfg}"
PATH_ETC_CI_CFG_D="${PATH_ETC_CI_CFG_D:-${PATH_ETC_CI_CFG}.d}"
PATH_RUN_CI="${PATH_RUN_CI:-${PATH_RUN}/cloud-init}"
PATH_RUN_CI_CFG=${PATH_RUN_CI_CFG:-${PATH_RUN_CI}/cloud.cfg}
PATH_RUN_DI_RESULT=${PATH_RUN_DI_RESULT:-${PATH_RUN_CI}/.ds-identify.result}
DI_LOG="${DI_LOG:-${PATH_RUN_CI}/ds-identify.log}"
_DI_LOGGED=""
# set DI_MAIN='noop' in environment to source this file with no main called.
DI_MAIN=${DI_MAIN:-main}
DI_BLKID_EXPORT_OUT=""
DI_GEOM_LABEL_STATUS_OUT=""
DI_DEFAULT_POLICY="search,found=all,maybe=all,notfound=${DI_DISABLED}"
DI_DEFAULT_POLICY_NO_DMI="search,found=all,maybe=all,notfound=${DI_ENABLED}"
DI_DMI_BOARD_NAME=""
DI_DMI_CHASSIS_ASSET_TAG=""
DI_DMI_PRODUCT_NAME=""
DI_DMI_SYS_VENDOR=""
DI_DMI_PRODUCT_SERIAL=""
DI_DMI_PRODUCT_UUID=""
DI_FS_LABELS=""
DI_FS_UUIDS=""
DI_ISO9660_DEVS=""
DI_KERNEL_CMDLINE=""
DI_VIRT=""
DI_PID_1_PRODUCT_NAME=""
DI_UNAME_KERNEL_NAME=""
DI_UNAME_KERNEL_RELEASE=""
DI_UNAME_KERNEL_VERSION=""
DI_UNAME_MACHINE=""
DI_UNAME_NODENAME=""
DI_UNAME_OPERATING_SYSTEM=""
DI_UNAME_CMD_OUT=""
DS_FOUND=0
DS_NOT_FOUND=1
DS_MAYBE=2
DI_DSNAME=""
# this has to match the builtin list in cloud-init, it is what will
# be searched if there is no setting found in config.
DI_DSLIST_DEFAULT="MAAS ConfigDrive NoCloud AltCloud Azure Bigstep \
CloudSigma CloudStack DigitalOcean Vultr AliYun Ec2 GCE OpenNebula OpenStack \
OVF SmartOS Scaleway Hetzner IBMCloud Oracle Exoscale RbxCloud UpCloud VMware \
LXD NWCS Akamai"
DI_DSLIST=""
DI_MODE=""
DI_ON_FOUND=""
DI_ON_MAYBE=""
DI_ON_NOTFOUND=""
DI_EC2_STRICT_ID_DEFAULT="true"
_IS_IBM_CLOUD=""
error() {
set -- "ERROR:" "$@";
debug 0 "$@"
stderr "$@"
}
warn() {
set -- "WARN:" "$@"
debug 0 "$@"
stderr "$@"
}
stderr() { echo "$@" 1>&2; }
debug() {
local lvl="$1"
shift
[ "$lvl" -gt "${DI_DEBUG_LEVEL}" ] && return
if [ "$_DI_LOGGED" != "$DI_LOG" ]; then
# first time here, open file descriptor for append
case "$DI_LOG" in
stderr) :;;
?*/*)
if [ ! -d "${DI_LOG%/*}" ]; then
mkdir -p "${DI_LOG%/*}" || {
stderr "ERROR:" "cannot write to $DI_LOG"
DI_LOG="stderr"
}
fi
esac
if [ "$DI_LOG" = "stderr" ]; then
exec 3>&2
else
( exec 3>>"$DI_LOG" ) && exec 3>>"$DI_LOG" || {
stderr "ERROR: failed writing to $DI_LOG. logging to stderr.";
exec 3>&2
DI_LOG="stderr"
}
fi
_DI_LOGGED="$DI_LOG"
fi
echo "$@" 1>&3
}
get_kenv_field() {
local sys_field="$1" kenv_field="" val=""
command -v kenv >/dev/null 2>&1 || {
warn "No kenv program. Cannot read $sys_field."
return 1
}
case "$sys_field" in
board_asset_tag) kenv_field="smbios.planar.tag";;
board_vendor) kenv_field='smbios.planar.maker';;
board_name) kenv_field='smbios.planar.product';;
board_serial) kenv_field='smbios.planar.serial';;
board_version) kenv_field='smbios.planar.version';;
bios_date) kenv_field='smbios.bios.reldate';;
bios_vendor) kenv_field='smbios.bios.vendor';;
bios_version) kenv_field='smbios.bios.version';;
chassis_asset_tag) kenv_field='smbios.chassis.tag';;
chassis_vendor) kenv_field='smbios.chassis.maker';;
chassis_serial) kenv_field='smbios.chassis.serial';;
chassis_version) kenv_field='smbios.chassis.version';;
sys_vendor) kenv_field='smbios.system.maker';;
product_name) kenv_field='smbios.system.product';;
product_serial) kenv_field='smbios.system.serial';;
product_uuid) kenv_field='smbios.system.uuid';;
*) error "Unknown field $sys_field. Cannot call kenv."
return 1;;
esac
val=$(kenv -q "$kenv_field" 2>/dev/null) || return 1
_RET="$val"
}
dmi_decode() {
local sys_field="$1" dmi_field="" val=""
command -v dmidecode >/dev/null 2>&1 || {
warn "No dmidecode program. Cannot read $sys_field."
return 1
}
case "$sys_field" in
sys_vendor) dmi_field="system-manufacturer";;
product_name) dmi_field="system-product-name";;
product_uuid) dmi_field="system-uuid";;
product_serial) dmi_field="system-serial-number";;
chassis_asset_tag) dmi_field="chassis-asset-tag";;
*) error "Unknown field $sys_field. Cannot call dmidecode."
return 1;;
esac
val=$(dmidecode --quiet "--string=$dmi_field" 2>/dev/null) || return 1
_RET="$val"
}
get_dmi_field() {
_RET="$UNAVAILABLE"
if [ "$DI_UNAME_KERNEL_NAME" = "FreeBSD" ]; then
get_kenv_field "$1" || _RET="$ERROR"
return $?
fi
local path="${PATH_SYS_CLASS_DMI_ID}/$1"
if [ -d "${PATH_SYS_CLASS_DMI_ID}" ]; then
if [ -f "$path" ] && [ -r "$path" ]; then
read _RET < "${path}" || _RET="$ERROR"
return
fi
# if `/sys/class/dmi/id` exists, but not the object we're looking for,
# do *not* fallback to dmidecode!
return
fi
dmi_decode "$1" || _RET="$ERROR"
return
}
block_dev_with_label() {
local p="${PATH_DEV_DISK}/by-label/$1"
[ -b "$p" ] || return 1
_RET=$p
return 0
}
ensure_sane_path() {
local t
for t in /sbin /usr/sbin /bin /usr/bin; do
case ":$PATH:" in
*:$t:*|*:$t/:*) continue;;
esac
PATH="${PATH:+${PATH}:}$t"
done
}
blkid_export() {
# call 'blkid -c /dev/null export', set DI_BLKID_EXPORT_OUT
cached "$DI_BLKID_EXPORT_OUT" && return 0
local out="" ret=0
out=$(blkid -c /dev/null -o export) && DI_BLKID_EXPORT_OUT="$out" || {
ret=$?
error "failed running [$ret]: blkid -c /dev/null -o export"
DI_BLKID_EXPORT_OUT="$UNAVAILABLE"
}
return $ret
}
read_fs_info_linux() {
# do not rely on links in /dev/disk which might not be present yet.
# Note that blkid < 2.22 (centos6, trusty) do not output DEVNAME.
# that means that DI_ISO9660_DEVS will not be set.
if is_container; then
# blkid will in a container, or at least currently in lxd
# not provide useful information.
DI_FS_LABELS="$UNAVAILABLE:container"
DI_ISO9660_DEVS="$UNAVAILABLE:container"
return
fi
local oifs="$IFS" line="" delim=","
local ret=0 labels="" dev="" label="" ftype="" isodevs="" uuids=""
blkid_export
ret=$?
[ "$DI_BLKID_EXPORT_OUT" = "$UNAVAILABLE" ] && {
DI_FS_LABELS="$UNAVAILABLE:error"
DI_ISO9660_DEVS="$UNAVAILABLE:error"
DI_FS_UUIDS="$UNAVAILABLE:error"
return $ret
}
# 'set --' will collapse multiple consecutive entries in IFS for
# whitespace characters (\n, tab, " ") so we cannot rely on getting
# empty lines in "$@" below.
# shellcheck disable=2086
{ IFS="$CR"; set -- $DI_BLKID_EXPORT_OUT; IFS="$oifs"; }
for line in "$@"; do
case "${line}" in
DEVNAME=*)
[ -n "$dev" -a "$ftype" = "iso9660" ] &&
isodevs="${isodevs},${dev}=$label"
ftype=""; dev=""; label="";
dev=${line#DEVNAME=};;
LABEL=*|LABEL_FATBOOT=*)
label="${line#*=}";
labels="${labels}${label}${delim}";;
TYPE=*) ftype=${line#TYPE=};;
UUID=*) uuids="${uuids}${line#UUID=}$delim";;
esac
done
[ -n "$dev" -a "$ftype" = "iso9660" ] &&
isodevs="${isodevs},${dev}=$label"
DI_FS_LABELS="${labels%"${delim}"}"
DI_FS_UUIDS="${uuids%"${delim}"}"
DI_ISO9660_DEVS="${isodevs#,}"
}
geom_label_status_as() {
# call 'geom label status -as', set DI_GEOM_LABEL_STATUS_OUT
cached "$DI_GEOM_LABEL_STATUS_OUT" && return 0
local out="" ret=0
out=$(geom label status -as) && DI_GEOM_LABEL_STATUS_OUT="$out" || {
ret=$?
error "failed running [$ret]: geom label status -as"
DI_GEOM_LABEL_STATUS_OUT="$UNAVAILABLE"
}
return $ret
}
read_fs_info_freebsd() {
local oifs="$IFS" line="" delim=","
local ret=0 labels="" dev="" label="" ftype="" isodevs=""
geom_label_status_as
ret=$?
[ "$DI_GEOM_LABEL_STATUS_OUT" = "$UNAVAILABLE" ] && {
DI_FS_LABELS="$UNAVAILABLE:error"
DI_ISO9660_DEVS="$UNAVAILABLE:error"
return $ret
}
# The expected output looks like this:
# gpt/gptboot0 N/A vtbd1p1
# gpt/swap0 N/A vtbd1p2
# iso9660/cidata N/A vtbd2
# shellcheck disable=2086
{ IFS="$CR"; set -- $DI_GEOM_LABEL_STATUS_OUT; IFS="$oifs"; }
for line in "$@"; do
# shellcheck disable=2086
set -- $line
provider=$1
ftype="${provider%/*}"
label="${provider#*/}"
dev=$3
[ -n "$dev" -a "$ftype" = "iso9660" ] &&
isodevs="${isodevs},${dev}=$label"
labels="${labels}${label}${delim}"
done
DI_FS_LABELS="${labels%"${delim}"}"
DI_ISO9660_DEVS="${isodevs#,}"
}
read_fs_info() {
# After calling its subfunctions, read_fs_info() will set the following
# variables:
#
# - DI_FS_LABELS
# - DI_ISO9660_DEVS
# - DI_FS_UUIDS
if [ "$DI_UNAME_KERNEL_NAME" = "FreeBSD" ]; then
read_fs_info_freebsd
return $?
else
read_fs_info_linux
return $?
fi
}
cached() {
[ -n "$1" ] && _RET="$1" && return || return 1
}
detect_virt() {
local virt="${UNAVAILABLE}" r="" out=""
if [ -d /run/systemd ]; then
out=$(systemd-detect-virt 2>&1)
r=$?
if [ $r -eq 0 ] || { [ $r -ne 0 ] && [ "$out" = "none" ]; }; then
virt="$out"
fi
elif [ "$DI_UNAME_KERNEL_NAME" = "FreeBSD" ]; then
# Map FreeBSD's vm_guest names to those systemd-detect-virt that
# don't match up. See
# https://github.com/freebsd/freebsd/blob/master/sys/kern/subr_param.c#L144-L160
# https://www.freedesktop.org/software/systemd/man/systemd-detect-virt.html
#
# systemd | kern.vm_guest
# ---------------------+---------------
# none | none
# kvm | kvm
# vmware | vmware
# microsoft | hv
# oracle | vbox
# xen | xen
# parallels | parallels
# bhyve | bhyve
# vm-other | generic
out=$(sysctl -qn kern.vm_guest 2>/dev/null) && {
case "$out" in
hv) virt="microsoft" ;;
vbox) virt="oracle" ;;
generic) "vm-other";;
*) virt="$out"
esac
}
out=$(sysctl -qn security.jail.jailed 2>/dev/null) && {
if [ "$out" = "1" ]; then
virt="jail"
fi
}
fi
_RET="$virt"
}
read_virt() {
cached "$DI_VIRT" && return 0
detect_virt
DI_VIRT="${_RET}"
}
is_container() {
case "${DI_VIRT}" in
container-other|lxc|lxc-libvirt|systemd-nspawn|docker|rkt|jail) return 0;;
*) return 1;;
esac
}
is_socket_file() {
[ -S "$1" ] && return 0 || return 1
}
read_kernel_cmdline() {
cached "${DI_KERNEL_CMDLINE}" && return
local cmdline="" fpath="${PATH_PROC_CMDLINE}"
if is_container; then
local p1path="${PATH_PROC_1_CMDLINE}" x=""
cmdline="${UNAVAILABLE}:container"
if [ -f "$p1path" ] && x=$(tr '\0' ' ' < "$p1path"); then
cmdline=$x
fi
elif [ -f "$fpath" ]; then
read cmdline <"$fpath"
else
cmdline="${UNAVAILABLE}:no-cmdline"
fi
DI_KERNEL_CMDLINE="$cmdline"
}
read_dmi_board_name() {
cached "${DI_DMI_BOARD_NAME}" && return
get_dmi_field board_name
DI_DMI_BOARD_NAME="$_RET"
}
read_dmi_chassis_asset_tag() {
cached "${DI_DMI_CHASSIS_ASSET_TAG}" && return
get_dmi_field chassis_asset_tag
DI_DMI_CHASSIS_ASSET_TAG="$_RET"
}
read_dmi_sys_vendor() {
cached "${DI_DMI_SYS_VENDOR}" && return
get_dmi_field sys_vendor
DI_DMI_SYS_VENDOR="$_RET"
}
read_dmi_product_name() {
cached "${DI_DMI_PRODUCT_NAME}" && return
get_dmi_field product_name
DI_DMI_PRODUCT_NAME="$_RET"
}
read_dmi_product_uuid() {
cached "${DI_DMI_PRODUCT_UUID}" && return
get_dmi_field product_uuid
DI_DMI_PRODUCT_UUID="$_RET"
}
read_dmi_product_serial() {
cached "${DI_DMI_PRODUCT_SERIAL}" && return
get_dmi_field product_serial
DI_DMI_PRODUCT_SERIAL="$_RET"
}
# shellcheck disable=2034
read_uname_info() {
# run uname, and parse output.
# uname is tricky to parse as it outputs always in a given order
# independent of option order. kernel-version is known to have spaces.
# 1 -s kernel-name
# 2 -n nodename
# 3 -r kernel-release
# 4.. -v kernel-version(whitespace)
# N-2 -m machine
# N-1 -o operating-system
cached "${DI_UNAME_CMD_OUT}" && return
local out="${1:-}" ret=0 buf=""
if [ -z "$out" ]; then
out=$(uname -snrvmo) || {
ret=$?
error "failed reading uname with 'uname -snrvmo'"
return $ret
}
fi
# shellcheck disable=2086
set -- $out
DI_UNAME_KERNEL_NAME="$1"
DI_UNAME_NODENAME="$2"
DI_UNAME_KERNEL_RELEASE="$3"
shift 3
while [ $# -gt 2 ]; do
buf="$buf $1"
shift
done
DI_UNAME_KERNEL_VERSION="${buf# }"
DI_UNAME_MACHINE="$1"
DI_UNAME_OPERATING_SYSTEM="$2"
DI_UNAME_CMD_OUT="$out"
return 0
}
parse_yaml_array() {
# parse a yaml single line array value ([1,2,3], not key: [1,2,3]).
# supported with or without leading and closing brackets
# ['1'] or [1]
# '1', '2'
local val="$1" oifs="$IFS" ret="" tok=""
# i386/14.04 (dash=0.5.7-4ubuntu1): the following outputs "[foo"
# sh -c 'n="$1"; echo ${n#[}' -- "[foo"
# the fix was to quote the open bracket (val=${val#"["}) (LP: #1689648)
val=${val#"["}
val=${val%"]"}
# shellcheck disable=2086
{ IFS=","; set -- $val; IFS="$oifs"; }
for tok in "$@"; do
trim "$tok"
unquote "$_RET"
ret="${ret} $_RET"
done
_RET="${ret# }"
}
read_datasource_list() {
cached "$DI_DSLIST" && return
local dslist=""
# if DI_DSNAME is set directly, then avoid parsing config.
if [ -n "${DI_DSNAME}" ]; then
dslist="${DI_DSNAME}"
fi
# LP: #1582323. cc:{'datasource_list': ['name']}
# more generically cc:<yaml>[end_cc]
local cb="]" ob="["
case "$DI_KERNEL_CMDLINE" in
*cc:*datasource_list*)
t=${DI_KERNEL_CMDLINE##*datasource_list}
t=${t%%"${cb}"*}
t=${t##*"${ob}"}
parse_yaml_array "$t"
dslist=${_RET}
;;
esac
if [ -z "$dslist" ] && check_config datasource_list; then
debug 1 "$_RET_fname set datasource_list: $_RET"
parse_yaml_array "$_RET"
dslist=${_RET}
fi
if [ -z "$dslist" ]; then
dslist=${DI_DSLIST_DEFAULT}
debug 1 "no datasource_list found, using default: $dslist"
fi
DI_DSLIST=$dslist
return 0
}
read_pid1_product_name() {
local oifs="$IFS" out="" tok="" key="" val="" product_name="${UNAVAILABLE}"
cached "${DI_PID_1_PRODUCT_NAME}" && return
[ -r "${PATH_PROC_1_ENVIRON}" ] || return
out=$(tr '\0' '\n' <"${PATH_PROC_1_ENVIRON}")
# shellcheck disable=2086
{ IFS="$CR"; set -- $out; IFS="$oifs"; }
for tok in "$@"; do
key=${tok%%=*}
[ "$key" != "$tok" ] || continue
val=${tok#*=}
[ "$key" = "product_name" ] && product_name="$val" && break
done
DI_PID_1_PRODUCT_NAME="$product_name"
}
dmi_chassis_asset_tag_matches() {
is_container && return 1
# shellcheck disable=2254
case "${DI_DMI_CHASSIS_ASSET_TAG}" in
$1) return 0;;
esac
return 1
}
dmi_product_name_matches() {
is_container && return 1
# shellcheck disable=2254
case "${DI_DMI_PRODUCT_NAME}" in
$1) return 0;;
esac
return 1
}
dmi_product_serial_matches() {
is_container && return 1
# shellcheck disable=2254
case "${DI_DMI_PRODUCT_SERIAL}" in
$1) return 0;;
esac
return 1
}
dmi_sys_vendor_is() {
is_container && return 1
[ "${DI_DMI_SYS_VENDOR}" = "$1" ]
}
has_fs_with_uuid() {
case ",${DI_FS_UUIDS}," in
*,$1,*) return 0;;
esac
return 1
}
has_fs_with_label() {
# has_fs_with_label(label1[ ,label2 ..])
# return 0 if a there is a filesystem that matches any of the labels.
local label=""
for label in "$@"; do
case ",${DI_FS_LABELS}," in
*,$label,*) return 0;;
esac
done
return 1
}
nocase_equal() {
# nocase_equal(a, b)
# return 0 if case insenstive comparision a.lower() == b.lower()
# different lengths
[ "${#1}" = "${#2}" ] || return 1
# case sensitive equal
[ "$1" = "$2" ] && return 0
local delim="-delim-"
# shellcheck disable=2018,2019
out=$(echo "$1${delim}$2" | tr A-Z a-z)
[ "${out#*"${delim}"}" = "${out%"${delim}"*}" ]
}
check_seed_dir() {
# check_seed_dir(name, [required])
# check the seed dir /var/lib/cloud/seed/<name> for 'required'
# required defaults to 'meta-data'
local name="$1"
local dir="${PATH_VAR_LIB_CLOUD}/seed/$name"
[ -d "$dir" ] || return 1
shift
if [ $# -eq 0 ]; then
set -- meta-data
fi
local f=""
for f in "$@"; do
[ -f "$dir/$f" ] || return 1
done
return 0
}
check_writable_seed_dir() {
# ubuntu core bind-mounts /writable/system-data/var/lib/cloud
# over the top of /var/lib/cloud, but the mount might not be done yet.
local wdir="/writable/system-data"
[ -d "${PATH_ROOT}$wdir" ] || return 1
local sdir="${PATH_ROOT}$wdir${PATH_VAR_LIB_CLOUD#"${PATH_ROOT}"}"
local PATH_VAR_LIB_CLOUD="$sdir"
check_seed_dir "$@"
}
probe_floppy() {
cached "${STATE_FLOPPY_PROBED}" && return "${STATE_FLOPPY_PROBED}"
local fpath=/dev/floppy
[ -b "$fpath" ] ||
{ STATE_FLOPPY_PROBED=1; return 1; }
modprobe --use-blacklist floppy >/dev/null 2>&1 ||
{ STATE_FLOPPY_PROBED=1; return 1; }
udevadm settle "--exit-if-exists=$fpath" ||
{ STATE_FLOPPY_PROBED=1; return 1; }
[ -b "$fpath" ]
STATE_FLOPPY_PROBED=$?
return "${STATE_FLOPPY_PROBED}"
}
dscheck_CloudStack() {
is_container && return ${DS_NOT_FOUND}
dmi_product_name_matches "CloudStack*" && return $DS_FOUND
return $DS_NOT_FOUND
}
dscheck_Exoscale() {
dmi_product_name_matches "Exoscale*" && return $DS_FOUND
return $DS_NOT_FOUND
}
dscheck_CloudSigma() {
# http://paste.ubuntu.com/23624795/
dmi_product_name_matches "CloudSigma" && return $DS_FOUND
return $DS_NOT_FOUND
}
dscheck_Akamai() {
dmi_sys_vendor_is Linode && return ${DS_FOUND}
dmi_sys_vendor_is Akamai && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
check_config() {
# check_config(key [,file_globs])
# somewhat hackily read through file_globs for 'key'
# file_globs are expanded via path expansion and
# default to /etc/cloud/cloud.cfg /etc/cloud/cloud.cfg.d/*.cfg
# currently does not respect any hierarchy in searching for key.
local key="$1" files=""
shift
if [ $# -eq 0 ]; then
files="${PATH_ETC_CI_CFG} ${PATH_ETC_CI_CFG_D}/*.cfg"
else
files="$*"
fi
# shellcheck disable=2086
{ set +f; set -- $files; set -f; }
if [ "$1" = "$files" -a ! -f "$1" ]; then
return 1
fi
local fname="" line="" ret="" found=0 found_fn=""
# shellcheck disable=2094
for fname in "$@"; do
[ -f "$fname" ] || continue
while read line; do
line=${line%%#*}
case "$line" in
$key:\ *|"${key}":)
ret=${line#*:};
ret=${ret# };
found=$((found+1))
found_fn="$fname";;
esac
done <"$fname"
done
if [ $found -ne 0 ]; then
_RET="$ret"
_RET_fname="$found_fn"
return 0
fi
return 1
}
dscheck_MAAS() {
is_container && return "${DS_NOT_FOUND}"
# heuristic check for ephemeral boot environment
# for maas that do not set 'ci.dsname=' in the ephemeral environment
# these have iscsi root and cloud-config-url on the cmdline.
local maasiqn="iqn.2004-05.com.ubuntu:maas"
case "${DI_KERNEL_CMDLINE}" in
*cloud-config-url=*${maasiqn}*|*${maasiqn}*cloud-config-url=*)
return ${DS_FOUND}
;;
esac
# check config files written by maas for installed system.
if check_config "MAAS"; then
return "${DS_FOUND}"
fi
return ${DS_NOT_FOUND}
}
# LXD datasource requires active /dev/lxd/sock
# https://documentation.ubuntu.com/lxd/en/latest/dev-lxd/
dscheck_LXD() {
if is_socket_file /dev/lxd/sock; then
return ${DS_FOUND}
fi
# On LXD KVM instances, /dev/lxd/sock is not yet setup by
# lxd-agent-loader's systemd lxd-agent.service.
# Rely on DMI product information that is present on all LXD images.
# Note "qemu" is returned on kvm instances launched from a host kernel
# kernels >=5.10, due to `hv_passthrough` option.
# systemd v. 251 should properly return "kvm" in this scenario
# https://github.com/systemd/systemd/issues/22709
if [ "${DI_VIRT}" = "kvm" -o "${DI_VIRT}" = "qemu" ]; then
[ "${DI_DMI_BOARD_NAME}" = "LXD" ] && return ${DS_FOUND}
fi
return ${DS_NOT_FOUND}
}
dscheck_NoCloud() {
local fslabel="cidata CIDATA" d=""
case " ${DI_DMI_PRODUCT_SERIAL} " in
*\ ds=nocloud*) return ${DS_FOUND};;
esac
for d in nocloud nocloud-net; do
check_seed_dir "$d" meta-data user-data && return ${DS_FOUND}
check_writable_seed_dir "$d" meta-data user-data && return ${DS_FOUND}
done
# shellcheck disable=2086
if has_fs_with_label $fslabel; then
return ${DS_FOUND}
fi
# This is a bit hacky, but a NoCloud false positive isn't the end of the world
if check_config "NoCloud" && check_config "user-data" && check_config "meta-data"; then
return ${DS_FOUND}
fi
return ${DS_NOT_FOUND}
}
is_ds_enabled() {
local name="$1" pad=" ${DI_DSLIST} "
[ "${pad#* "${name}" }" != "${pad}" ]
}
check_configdrive_v2() {
# look in /config-drive <vlc>/seed/config_drive for a directory
# openstack/YYYY-MM-DD format with a file meta_data.json
local d=""
local vlc_config_drive_path="${PATH_VAR_LIB_CLOUD}/seed/config_drive"
for d in /config-drive $vlc_config_drive_path; do
set +f; set -- "$d/openstack/"2???-??-??/meta_data.json; set -f;
[ -f "$1" ] && return ${DS_FOUND}
done
# at least one cloud (softlayer) seeds config drive with only 'latest'.
local lpath="openstack/latest/meta_data.json"
if [ -e "$vlc_config_drive_path/$lpath" ]; then
debug 1 "config drive seeded directory had only 'latest'"
return ${DS_FOUND}
fi
local ibm_enabled=false
is_ds_enabled "IBMCloud" && ibm_enabled=true
debug 1 "is_ds_enabled(IBMCloud) = $ibm_enabled."
[ "$ibm_enabled" = "true" ] && is_ibm_cloud && return ${DS_NOT_FOUND}
if has_fs_with_label CONFIG-2 config-2; then
return ${DS_FOUND}
fi
return ${DS_NOT_FOUND}
}
check_configdrive_v1() {
# FIXME: this has to check any file system that is vfat...
# for now, just return not found.
return ${DS_NOT_FOUND}
}
dscheck_ConfigDrive() {
local ret=""
check_configdrive_v2
ret=$?
[ $DS_FOUND -eq $ret ] && return $ret
check_configdrive_v1
}
dscheck_DigitalOcean() {
dmi_sys_vendor_is DigitalOcean && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_OpenNebula() {
check_seed_dir opennebula && return ${DS_FOUND}
has_fs_with_label "CONTEXT" "CDROM" && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_RbxCloud() {
has_fs_with_label "CLOUDMD" "cloudmd" && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_UpCloud() {
dmi_sys_vendor_is UpCloud && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
vmware_guest_customization() {
# vmware guest customization
# virt provider must be vmware
[ "${DI_VIRT}" = "vmware" ] || return 1
# we have to have the plugin to do vmware customization
local found="" pkg="" pre="${PATH_ROOT}/usr/lib"
local x86="x86_64-linux-gnu" aarch="aarch64-linux-gnu" i386="i386-linux-gnu"
local ppath="plugins/vmsvc/libdeployPkgPlugin.so"
for pkg in vmware-tools open-vm-tools; do
if [ -f "$pre/$pkg/$ppath" -o -f "${pre}64/$pkg/$ppath" ]; then
found="$pkg"; break;
fi
# search in multiarch dir
if [ -f "$pre/$x86/$pkg/$ppath" ] || \
[ -f "$pre/$aarch/$pkg/$ppath" ] || \
[ -f "$pre/$i386/$pkg/$ppath" ]; then
found="$pkg"; break;
fi
done
[ -n "$found" ] || return 1
# vmware customization is disabled by default
# (disable_vmware_customization=true). If it is set to false, then
# user has requested customization.
local key="disable_vmware_customization"
if check_config "$key"; then
debug 2 "${_RET_fname} set $key to $_RET"
case "$_RET" in
0|false|False) return 0;;
*) return 1;;
esac
fi
return 1
}
vmware_has_rpctool() {
command -v vmware-rpctool >/dev/null 2>&1
}
vmware_rpctool_guestinfo() {
vmware-rpctool "info-get guestinfo.${1}" 2>/dev/null | grep "[[:alnum:]]"
}
vmware_rpctool_guestinfo_err() {
vmware-rpctool "info-get guestinfo.${1}" 2>&1 | grep "[[:alnum:]]"
}
vmware_has_vmtoolsd() {
command -v vmtoolsd >/dev/null 2>&1
}
vmware_vmtoolsd_guestinfo() {
vmtoolsd --cmd "info-get guestinfo.${1}" 2>/dev/null | grep "[[:alnum:]]"
}
vmware_vmtoolsd_guestinfo_err() {
vmtoolsd --cmd "info-get guestinfo.${1}" 2>&1 | grep "[[:alnum:]]"
}
vmware_guestinfo() {
vmware_rpctool_guestinfo "${1}" || vmware_vmtoolsd_guestinfo "${1}"
}
vmware_guestinfo_err() {
vmware_rpctool_guestinfo_err "${1}" || vmware_vmtoolsd_guestinfo_err "${1}"
}
vmware_guestinfo_ovfenv_err() {
vmware_guestinfo_err "ovfEnv"
}
vmware_guestinfo_metadata() {
vmware_guestinfo "metadata"
}
vmware_guestinfo_userdata() {
vmware_guestinfo "userdata"
}
vmware_guestinfo_vendordata() {
vmware_guestinfo "vendordata"
}
ovf_vmware_transport_guestinfo() {
[ "${DI_VIRT}" = "vmware" ] || return 1
vmware_has_rpctool || vmware_has_vmtoolsd || return 1
local out="" ret=""
out=$(vmware_guestinfo_ovfenv_err)
ret=$?
if [ $ret -ne 0 ]; then
debug 1 "Running on vmware but query returned $ret: $out"
return 1
fi
case "$out" in
"<?xml"*|"<?XML"*) :;;
*) debug 1 "guestinfo.ovfEnv had non-xml content: $out";
return 1;;
esac
debug 1 "Found guestinfo transport."
return 0
}
is_cdrom_ovf() {
local dev="$1" label="$2"
# skip devices that don't look like cdrom paths.
case "$dev" in
/dev/sr[0-9]|/dev/hd[a-z]) :;;
*) debug 1 "skipping iso dev $dev"
return 1;;
esac
debug 1 "got label=$label"
# fast path known 'OVF' labels
case "$label" in
OVF-TRANSPORT|ovf-transport|OVFENV|ovfenv|OVF\ ENV|ovf\ env) return 0;;
esac
# explicitly skip known labels of other types. rd_rdfe is azure.
case "$label" in
config-2|CONFIG-2|rd_rdfe_stable*|cidata|CIDATA) return 1;;
esac
# skip device which size is 10MB or larger
local size="" sfile="${PATH_SYS_CLASS_BLOCK}/${dev##*/}/size"
[ -f "$sfile" ] || return 1
read size <"$sfile" || { warn "failed reading from $sfile"; return 1; }
# size is in 512 byte units. so convert to MB (integer division)
if [ $((size/2048)) -ge 10 ]; then
debug 2 "$dev: size $((size/2048))MB is considered too large for OVF"
return 1
fi
local idstr="http://schemas.dmtf.org/ovf/environment/1"
grep --quiet --ignore-case "$idstr" "${PATH_ROOT}$dev"
}
has_ovf_cdrom() {
# DI_ISO9660_DEVS is <device>=label,<device>=label2
# like /dev/sr0=OVF-TRANSPORT,/dev/other=with spaces
if [ "${DI_ISO9660_DEVS#"${UNAVAILABLE}":}" = "${DI_ISO9660_DEVS}" ]; then
local oifs="$IFS"
# shellcheck disable=2086
{ IFS=","; set -- ${DI_ISO9660_DEVS}; IFS="$oifs"; }
for tok in "$@"; do
is_cdrom_ovf "${tok%%=*}" "${tok#*=}" && return 0
done
fi
return 1
}
is_disabled() {
if [ -f /etc/cloud/cloud-init.disabled ]; then
debug 1 "disabled by marker file /etc/cloud-init.disabled"
return 0
fi
if [ "${KERNEL_CMDLINE:-}" = "cloud-init=disabled" ]; then
debug 1 "disabled by KERNEL_CMDLINE environment variable"
return 0
fi
case "$DI_KERNEL_CMDLINE" in
*cloud-init=disabled*)
debug 1 "disabled by kernel command line cloud-init=disabled"
return 0
esac
return 1
}
dscheck_OVF() {
check_seed_dir ovf ovf-env.xml && return "${DS_FOUND}"
[ "${DI_VIRT}" = "none" ] && return ${DS_NOT_FOUND}
# Azure provides ovf. Skip false positive by dis-allowing.
is_azure_chassis && return $DS_NOT_FOUND
ovf_vmware_transport_guestinfo && return "${DS_FOUND}"
has_ovf_cdrom && return "${DS_FOUND}"
return ${DS_NOT_FOUND}
}
is_azure_chassis() {
local azure_chassis="7783-7084-3265-9085-8269-3286-77"
dmi_chassis_asset_tag_matches "${azure_chassis}"
}
dscheck_Azure() {
is_azure_chassis && return $DS_FOUND
check_seed_dir azure ovf-env.xml && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_Bigstep() {
# bigstep is activated by presense of seed file 'url'
[ -f "${PATH_VAR_LIB_CLOUD}/data/seed/bigstep/url" ] &&
return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
ec2_read_strict_setting() {
# the 'strict_id' setting for Ec2 controls behavior when
# the platform does not identify itself directly as Ec2.
# order of precedence is:
# 1. builtin setting here cloud-init/ds-identify builtin
# 2. ds-identify config
# 3. system config (/etc/cloud/cloud.cfg.d/*Ec2*.cfg)
# 4. kernel command line (undocumented)
# 5. user-data or vendor-data (not available here)
local default="$1" key="ci.datasource.ec2.strict_id" val=""
# 4. kernel command line
case " ${DI_KERNEL_CMDLINE} " in
*\ $key=*\ )
val=${DI_KERNEL_CMDLINE##*"${key}"=}
val=${val%% *};
_RET=${val:-$default}
return 0
esac
# 3. look for the key 'strict_id' (datasource/Ec2/strict_id)
# only in cloud.cfg or cloud.cfg.d/EC2.cfg (case insensitive)
local cfg="${PATH_ETC_CI_CFG}" cfg_d="${PATH_ETC_CI_CFG_D}"
if check_config strict_id "$cfg" "$cfg_d/*[Ee][Cc]2*.cfg"; then
debug 2 "${_RET_fname} set strict_id to $_RET"
return 0
fi
# 2. ds-identify config (datasource.ec2.strict)
local config="${PATH_DI_CONFIG}"
if [ -f "$config" ]; then
if _read_config "$key" < "$config"; then
_RET=${_RET:-$default}
return 0
fi
fi
# 1. Default
_RET=$default
return 0
}
ec2_identify_platform() {
local default="$1"
local serial="${DI_DMI_PRODUCT_SERIAL}"
case "$serial" in
*.brightbox.com) _RET="Brightbox"; return 0;;
esac
local asset_tag="${DI_DMI_CHASSIS_ASSET_TAG}"
case "$asset_tag" in
*.zstack.io) _RET="ZStack"; return 0;;
esac
local vendor="${DI_DMI_SYS_VENDOR}"
case "$vendor" in
e24cloud) _RET="E24cloud"; return 0;;
esac
local product_name="${DI_DMI_PRODUCT_NAME}"
if [ "${product_name}" = "3DS Outscale VM" ] && \
[ "${vendor}" = "3DS Outscale" ]; then
_RET="Outscale"; return 0
fi
# AWS http://docs.aws.amazon.com/AWSEC2/
# latest/UserGuide/identify_ec2_instances.html
local uuid="" hvuuid="${PATH_SYS_HYPERVISOR}/uuid"
# if the (basically) xen specific /sys/hypervisor/uuid starts with 'ec2'
if [ -r "$hvuuid" ] && read uuid < "$hvuuid" &&
[ "${uuid#ec2}" != "$uuid" ]; then
_RET="AWS"
return 0
fi
# product uuid and product serial start with case insensitive
local uuid="${DI_DMI_PRODUCT_UUID}"
case "$uuid:$serial" in
[Ee][Cc]2*:[Ee][Cc]2*)
# both start with ec2, now check for case insenstive equal
nocase_equal "$uuid" "$serial" &&
{ _RET="AWS"; return 0; };;
esac
_RET="$default"
return 0;
}
dscheck_Ec2() {
check_seed_dir "ec2" meta-data user-data && return ${DS_FOUND}
is_container && return ${DS_NOT_FOUND}
local unknown="Unknown" platform=""
if ec2_identify_platform "$unknown"; then
platform="$_RET"
else
warn "Failed to identify ec2 platform. Using '$unknown'."
platform=$unknown
fi
debug 1 "ec2 platform is '$platform'."
if [ "$platform" != "$unknown" ]; then
return $DS_FOUND
fi
local default="${DI_EC2_STRICT_ID_DEFAULT}"
if ec2_read_strict_setting "$default"; then
strict="$_RET"
else
debug 1 "ec2_read_strict returned non-zero: $?. using '$default'."
strict="$default"
fi
local key="datasource/Ec2/strict_id"
case "$strict" in
true|false|warn|warn,[0-9]*) :;;
*)
warn "$key was set to invalid '$strict'. using '$default'"
strict="$default";;
esac
_RET_excfg="datasource: {Ec2: {strict_id: \"$strict\"}}"
if [ "$strict" = "true" ]; then
return $DS_NOT_FOUND
else
return $DS_MAYBE
fi
}
dscheck_GCE() {
if dmi_product_name_matches "Google Compute Engine"; then
return ${DS_FOUND}
fi
# product name is not guaranteed (LP: #1674861)
if dmi_product_serial_matches "GoogleCloud-*"; then
return ${DS_FOUND}
fi
return ${DS_NOT_FOUND}
}
dscheck_OpenStack() {
# the openstack metadata http service
# if there is a config drive, then do not check metadata
# FIXME: if config drive not in the search list, then we should not
# do this check.
check_configdrive_v2
if [ $? -eq ${DS_FOUND} ]; then
return ${DS_NOT_FOUND}
fi
local nova="OpenStack Nova" compute="OpenStack Compute"
if dmi_product_name_matches "$nova"; then
return ${DS_FOUND}
fi
if dmi_product_name_matches "$compute"; then
# RDO installed nova (LP: #1675349).
return ${DS_FOUND}
fi
if [ "${DI_PID_1_PRODUCT_NAME}" = "$nova" ]; then
return ${DS_FOUND}
fi
if dmi_chassis_asset_tag_matches "OpenTelekomCloud"; then
return ${DS_FOUND}
fi
if dmi_chassis_asset_tag_matches "SAP CCloud VM"; then
return ${DS_FOUND}
fi
if dmi_chassis_asset_tag_matches "HUAWEICLOUD"; then
return ${DS_FOUND}
fi
# LP: #1669875 : allow identification of OpenStack by asset tag
if dmi_chassis_asset_tag_matches "$nova"; then
return ${DS_FOUND}
fi
if dmi_chassis_asset_tag_matches "$compute"; then
return ${DS_FOUND}
fi
# LP: #1715241 : arch other than intel are not identified properly.
case "$DI_UNAME_MACHINE" in
i?86|x86_64) :;;
*) return ${DS_MAYBE};;
esac
return ${DS_NOT_FOUND}
}
dscheck_AliYun() {
check_seed_dir "AliYun" meta-data user-data && return ${DS_FOUND}
if dmi_product_name_matches "Alibaba Cloud ECS"; then
return $DS_FOUND
fi
return $DS_NOT_FOUND
}
dscheck_AltCloud() {
# ctype: either the dmi product name, or contents of
# /etc/sysconfig/cloud-info
# if ctype == "vsphere"
# device = device with label 'CDROM'
# elif ctype == "rhev"
# device = /dev/floppy
# then, filesystem on that device must have
# user-data.txt or deltacloud-user-data.txt
local ctype="" dev=""
local match_rhev="[Rr][Hh][Ee][Vv]"
local match_vsphere="[Vv][Ss][Pp][Hh][Ee][Rr][Ee]"
local cinfo="${PATH_ROOT}/etc/sysconfig/cloud-info"
if [ -f "$cinfo" ]; then
read ctype < "$cinfo"
else
ctype="${DI_DMI_PRODUCT_NAME}"
fi
case "$ctype" in
"${match_rhev}")
probe_floppy || return ${DS_NOT_FOUND}
dev="/dev/floppy"
;;
"${match_vsphere}")
block_dev_with_label CDROM || return ${DS_NOT_FOUND}
dev="$_RET"
;;
*) return ${DS_NOT_FOUND};;
esac
# FIXME: need to check $dev for user-data.txt or deltacloud-user-data.txt
: "$dev"
return $DS_MAYBE
}
dscheck_SmartOS() {
# joyent cloud has two virt types: kvm and container
# on kvm, product name on joyent public cloud shows 'SmartDC HVM'
# on the container platform, uname's version has: BrandZ virtual linux
# for container, we also verify that the socketfile exists to protect
# against embedded containers (lxd running on brandz)
local smartdc_kver="BrandZ virtual linux"
local metadata_sockfile="${PATH_ROOT}/native/.zonecontrol/metadata.sock"
dmi_product_name_matches "SmartDC*" && return $DS_FOUND
[ "${DI_UNAME_KERNEL_VERSION}" = "${smartdc_kver}" ] &&
[ -e "${metadata_sockfile}" ] &&
return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_None() {
return ${DS_NOT_FOUND}
}
dscheck_Scaleway() {
if [ "${DI_DMI_SYS_VENDOR}" = "Scaleway" ]; then
return $DS_FOUND
fi
case " ${DI_KERNEL_CMDLINE} " in
*\ scaleway\ *) return ${DS_FOUND};;
esac
if [ -f "${PATH_ROOT}/var/run/scaleway" ]; then
return ${DS_FOUND}
fi
return ${DS_NOT_FOUND}
}
dscheck_Hetzner() {
dmi_sys_vendor_is Hetzner && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_NWCS() {
dmi_sys_vendor_is NWCS && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_Oracle() {
local asset_tag="OracleCloud.com"
dmi_chassis_asset_tag_matches "${asset_tag}" && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
is_ibm_provisioning() {
local pcfg="${PATH_ROOT}/root/provisioningConfiguration.cfg"
local logf="${PATH_ROOT}/root/swinstall.log"
local is_prov=false msg="config '$pcfg' did not exist."
if [ -f "$pcfg" ]; then
msg="config '$pcfg' exists."
is_prov=true
if [ -f "$logf" ]; then
# shellcheck disable=3013
if [ "$logf" -nt "$PATH_PROC_1_ENVIRON" ]; then
msg="$msg log '$logf' from current boot."
else
is_prov=false
msg="$msg log '$logf' from previous boot."
fi
else
msg="$msg log '$logf' did not exist."
fi
fi
debug 2 "ibm_provisioning=$is_prov: $msg"
[ "$is_prov" = "true" ]
}
is_ibm_cloud() {
cached "${_IS_IBM_CLOUD}" && return "${_IS_IBM_CLOUD}"
local ret=1
if [ "$DI_VIRT" = "xen" ]; then
if is_ibm_provisioning; then
ret=0
elif has_fs_with_label METADATA metadata; then
ret=0
elif has_fs_with_uuid 9796-932E &&
has_fs_with_label CONFIG-2 config-2; then
ret=0
fi
fi
_IS_IBM_CLOUD=$ret
return $ret
}
dscheck_IBMCloud() {
if is_ibm_provisioning; then
debug 1 "cloud-init disabled during provisioning on IBMCloud"
return ${DS_NOT_FOUND}
fi
is_ibm_cloud && return ${DS_FOUND}
return ${DS_NOT_FOUND}
}
dscheck_Vultr() {
dmi_sys_vendor_is Vultr && return $DS_FOUND
case " $DI_KERNEL_CMDLINE " in
*\ vultr\ *) return $DS_FOUND ;;
esac
if [ -f "${PATH_ROOT}/etc/vultr" ]; then
return $DS_FOUND
fi
return $DS_NOT_FOUND
}
vmware_has_envvar_vmx_guestinfo() {
[ -n "${VMX_GUESTINFO:-}" ]
}
vmware_has_envvar_vmx_guestinfo_metadata() {
[ -n "${VMX_GUESTINFO_METADATA:-}" ]
}
vmware_has_envvar_vmx_guestinfo_userdata() {
[ -n "${VMX_GUESTINFO_USERDATA:-}" ]
}
vmware_has_envvar_vmx_guestinfo_vendordata() {
[ -n "${VMX_GUESTINFO_VENDORDATA:-}" ]
}
dscheck_VMware() {
# Checks to see if there is valid data for the VMware datasource.
# The data transports are checked in the following order:
#
# * envvars
# * guestinfo
# * imc (VMware Guest Customization)
#
# Please note when updating this function with support for new data
# transports, the order should match the order in the _get_data
# function from the file DataSourceVMware.py.
# Check to see if running in a container and the VMware
# datasource is configured via environment variables.
if vmware_has_envvar_vmx_guestinfo; then
if vmware_has_envvar_vmx_guestinfo_metadata || \
vmware_has_envvar_vmx_guestinfo_userdata || \
vmware_has_envvar_vmx_guestinfo_vendordata; then
return "${DS_FOUND}"
fi
fi
# Do not proceed unless the detected platform is VMware.
if [ ! "${DI_VIRT}" = "vmware" ]; then
return "${DS_NOT_FOUND}"
fi
# Do not proceed if neither the vmware-rpctool or vmtoolsd command exists.
if ! vmware_has_rpctool && ! vmware_has_vmtoolsd; then
return "${DS_NOT_FOUND}"
fi
# Activate the VMware datasource only if any of the fields used
# by the datasource are present in the guestinfo table.
if { vmware_guestinfo_metadata || \
vmware_guestinfo_userdata || \
vmware_guestinfo_vendordata; } >/dev/null 2>&1; then
return "${DS_FOUND}"
fi
# Activate the VMware datasource only if tools plugin is available and
# guest customization is enabled.
vmware_guest_customization && return "${DS_FOUND}"
return "${DS_NOT_FOUND}"
}
collect_info() {
read_pid1_product_name
read_config
read_datasource_list
read_dmi_sys_vendor
read_dmi_board_name
read_dmi_chassis_asset_tag
read_dmi_product_name
read_dmi_product_serial
read_dmi_product_uuid
read_fs_info
}
print_info() {
collect_info
_print_info
}
_print_info() {
local n="" v="" vars=""
vars="DMI_PRODUCT_NAME DMI_SYS_VENDOR DMI_PRODUCT_SERIAL"
vars="$vars DMI_PRODUCT_UUID PID_1_PRODUCT_NAME DMI_CHASSIS_ASSET_TAG"
vars="$vars DMI_BOARD_NAME FS_LABELS ISO9660_DEVS KERNEL_CMDLINE VIRT"
vars="$vars UNAME_KERNEL_NAME UNAME_KERNEL_RELEASE UNAME_KERNEL_VERSION"
vars="$vars UNAME_MACHINE UNAME_NODENAME UNAME_OPERATING_SYSTEM"
vars="$vars DSNAME DSLIST"
vars="$vars MODE ON_FOUND ON_MAYBE ON_NOTFOUND"
for v in ${vars}; do
eval n='${DI_'"$v"'}'
echo "$v=$n"
done
echo "pid=$$ ppid=$PPID"
is_container && echo "is_container=true" || echo "is_container=false"
}
write_result() {
local runcfg="${PATH_RUN_CI_CFG}" ret="" line="" pre=""
{
if [ "$DI_MODE" = "report" ]; then
echo "di_report:"
pre=" "
fi
for line in "$@"; do
echo "${pre}$line";
done
} > "$runcfg"
ret=$?
[ $ret -eq 0 ] || {
error "failed to write to ${runcfg}"
return $ret
}
return 0
}
record_notfound() {
# in report mode, report nothing was found.
# if not report mode: only report the negative result.
# reporting an empty list would mean cloud-init would not search
# any datasources.
if [ "$DI_MODE" = "report" ]; then
found --
elif [ "$DI_MODE" = "search" ]; then
local msg="# reporting not found result. notfound=${DI_ON_NOTFOUND}."
local DI_MODE="report"
found -- "$msg"
fi
}
found() {
# found(ds1, [ds2 ...], [-- [extra lines]])
local list="" ds=""
while [ $# -ne 0 ]; do
if [ "$1" = "--" ]; then
shift
break
fi
list="${list:+${list}, }$1"
shift
done
if [ $# -eq 1 ] && [ -z "$1" ]; then
# do not pass an empty line through.
shift
fi
# if None is not already in the list, then add it last.
case " $list " in
*\ None,\ *|*\ None\ ) :;;
*) list=${list:+${list}, None};;
esac
write_result "datasource_list: [ $list ]" "$@"
return
}
trim() {
# shellcheck disable=2048,2086
set -- $*
_RET="$*"
}
unquote() {
# remove quotes from quoted value
local quote='"' tick="'"
local val="$1"
case "$val" in
${quote}*${quote}|${tick}*${tick})
val=${val#?}; val=${val%?};;
esac
_RET="$val"
}
_read_config() {
# reads config from stdin,
# if no parameters are set, modifies _rc scoped environment vars.
# if keyname is provided, then returns found value of that key.
local keyname="${1:-_unset}"
local line="" hash="#" key="" val=""
while read line; do
line=${line%%"${hash}"*}
key="${line%%:*}"
# no : in the line.
[ "$key" = "$line" ] && continue
trim "$key"
key=${_RET}
[ "$keyname" != "_unset" ] && [ "$keyname" != "$key" ] &&
continue
val="${line#*:}"
trim "$val"
unquote "${_RET}"
val=${_RET}
if [ "$keyname" = "$key" ]; then
_RET="$val"
return 0
fi
case "$key" in
datasource) _rc_dsname="$val";;
policy) _rc_policy="$val";;
esac
done
if [ "$keyname" = "_unset" ]; then
return 1
fi
_RET=""
return 0
}
parse_warn() {
echo "WARN: invalid value '$2' for key '$1'. Using $1=$3." 1>&2
}
parse_def_policy() {
local _rc_mode="" _rc_report="" _rc_found="" _rc_maybe="" _rc_notfound=""
local ret=""
parse_policy "$@"
ret=$?
_def_mode=$_rc_mode
_def_report=$_rc_report
_def_found=$_rc_found
_def_maybe=$_rc_maybe
_def_notfound=$_rc_notfound
return $ret
}
parse_policy() {
# parse_policy(policy, default)
# parse a policy string. sets
# _rc_mode (enabled|disabled|search|report)
# _rc_report true|false
# _rc_found first|all
# _rc_maybe all|none
# _rc_notfound enabled|disabled
local def=""
case "$DI_UNAME_MACHINE" in
# these have dmi data
i?86|x86_64) def=${DI_DEFAULT_POLICY};;
# aarch64 has dmi, but not currently used (LP: #1663304)
aarch64) def=${DI_DEFAULT_POLICY_NO_DMI};;
*) def=${DI_DEFAULT_POLICY_NO_DMI};;
esac
local policy="$1"
local _def_mode="" _def_report="" _def_found="" _def_maybe=""
local _def_notfound=""
if [ $# -eq 1 ] || [ "$2" != "-" ]; then
def=${2:-${def}}
parse_def_policy "$def" -
fi
local mode="" report="" found="" maybe="" notfound=""
local oifs="$IFS" tok="" val=""
# shellcheck disable=2086
{ IFS=","; set -- $policy; IFS="$oifs"; }
for tok in "$@"; do
val=${tok#*=}
case "$tok" in
"${DI_ENABLED}"|"${DI_DISABLED}"|search|report) mode=$tok;;
found=all|found=first) found=$val;;
maybe=all|maybe=none) maybe=$val;;
notfound="${DI_ENABLED}"|notfound="${DI_DISABLED}") notfound=$val;;
found=*)
parse_warn found "$val" "${_def_found}"
found=${_def_found};;
maybe=*)
parse_warn maybe "$val" "${_def_maybe}"
maybe=${_def_maybe};;
notfound=*)
parse_warn notfound "$val" "${_def_notfound}"
notfound=${_def_notfound};;
esac
done
report=${report:-${_def_report:-false}}
_rc_report=${report}
_rc_mode=${mode:-${_def_mode}}
_rc_found=${found:-${_def_found}}
_rc_maybe=${maybe:-${_def_maybe}}
_rc_notfound=${notfound:-${_def_notfound}}
}
read_config() {
local config="${PATH_DI_CONFIG}"
local _rc_dsname="" _rc_policy="" ret=""
if [ -f "$config" ]; then
_read_config < "$config"
ret=$?
elif [ -e "$config" ]; then
error "$config exists but is not a file!"
ret=1
fi
local tok="" key="" val=""
for tok in ${DI_KERNEL_CMDLINE}; do
key=${tok%%=*}
val=${tok#*=}
# discard anything after the first delimiter
val=${val%%;*}
case "$key" in
ds) _rc_dsname="$val";;
ci.ds) _rc_dsname="$val";;
ci.datasource) _rc_dsname="$val";;
ci.di.policy) _rc_policy="$val";;
esac
done
local _rc_mode _rc_report _rc_found _rc_maybe _rc_notfound
parse_policy "${_rc_policy}"
debug 1 "policy loaded: mode=${_rc_mode} report=${_rc_report}" \
"found=${_rc_found} maybe=${_rc_maybe} notfound=${_rc_notfound}"
DI_MODE=${_rc_mode}
DI_ON_FOUND=${_rc_found}
DI_ON_MAYBE=${_rc_maybe}
DI_ON_NOTFOUND=${_rc_notfound}
DI_DSNAME="${_rc_dsname}"
return $ret
}
manual_clean_and_existing() {
[ -f "${PATH_VAR_LIB_CLOUD}/instance/manual-clean" ]
}
read_uptime() {
local up _
_RET="${UNAVAILABLE}"
[ -f "$PATH_PROC_UPTIME" ] && read up _ < "$PATH_PROC_UPTIME" &&
_RET="$up"
return
}
_main() {
local dscheck_fn="" ret_dis=1 ret_en=0
read_uptime
debug 1 "[up ${_RET}s]" "ds-identify $*"
read_uname_info
read_virt
read_kernel_cmdline
if is_disabled; then
return 2
fi
collect_info
if [ "$DI_LOG" = "stderr" ]; then
_print_info 1>&2
else
_print_info >> "$DI_LOG"
fi
case "$DI_MODE" in
"${DI_DISABLED}")
debug 1 "mode=$DI_DISABLED. returning $ret_dis"
return $ret_dis
;;
"${DI_ENABLED}")
debug 1 "mode=$DI_ENABLED. returning $ret_en"
return $ret_en;;
search|report) :;;
esac
if [ -n "${DI_DSNAME}" ]; then
debug 1 "datasource '$DI_DSNAME' specified."
found "$DI_DSNAME"
return
fi
if manual_clean_and_existing; then
debug 1 "manual_cache_clean enabled. Not writing datasource_list."
write_result "# manual_cache_clean."
return
fi
# shellcheck disable=2086
set -- $DI_DSLIST
# if there is only a single entry in $DI_DSLIST
if [ $# -eq 1 ] || [ $# -eq 2 -a "$2" = "None" ] ; then
debug 1 "single entry in datasource_list ($DI_DSLIST) use that."
if [ $# -eq 1 ]; then
write_result "datasource_list: [ $1 ]"
else
found "$@"
fi
return
fi
local found="" ret="" ds="" maybe="" _RET_excfg=""
local exfound_cfg="" exmaybe_cfg=""
for ds in ${DI_DSLIST}; do
dscheck_fn="dscheck_${ds}"
debug 2 "Checking for datasource '$ds' via '$dscheck_fn'"
if ! type "$dscheck_fn" >/dev/null 2>&1; then
warn "No check method '$dscheck_fn' for datasource '$ds'"
continue
fi
_RET_excfg=""
$dscheck_fn
ret="$?"
case "$ret" in
"${DS_FOUND}")
debug 1 "check for '$ds' returned found";
exfound_cfg="${exfound_cfg:+${exfound_cfg}${CR}}${_RET_excfg}"
found="${found} $ds";;
"${DS_MAYBE}")
debug 1 "check for '$ds' returned maybe";
exmaybe_cfg="${exmaybe_cfg:+${exmaybe_cfg}${CR}}${_RET_excfg}"
maybe="${maybe} $ds";;
*) debug 2 "check for '$ds' returned not-found[$ret]";;
esac
done
debug 2 "found=${found# } maybe=${maybe# }"
# shellcheck disable=2086
set -- $found
if [ $# -ne 0 ]; then
if [ $# -eq 1 ]; then
debug 1 "Found single datasource: $1"
else
# found=all
debug 1 "Found $# datasources found=${DI_ON_FOUND}: $*"
if [ "${DI_ON_FOUND}" = "first" ]; then
set -- "$1"
fi
fi
found "$@" -- "${exfound_cfg}"
return
fi
# shellcheck disable=2086
set -- $maybe
if [ $# -ne 0 -a "${DI_ON_MAYBE}" != "none" ]; then
debug 1 "$# datasources returned maybe: $*"
found "$@" -- "${exmaybe_cfg}"
return
fi
# record the empty result.
record_notfound
local basemsg="No ds found [mode=$DI_MODE, notfound=$DI_ON_NOTFOUND]."
local msg="" ret=3
case "$DI_MODE:$DI_ON_NOTFOUND" in
report:"${DI_DISABLED}")
msg="$basemsg Would disable cloud-init [$ret_dis]"
ret=$ret_en;;
report:"${DI_ENABLED}")
msg="$basemsg Would enable cloud-init [$ret_en]"
ret=$ret_en;;
search:"${DI_DISABLED}")
msg="$basemsg Disabled cloud-init [$ret_dis]"
ret=$ret_dis;;
search:"${DI_ENABLED}")
msg="$basemsg Enabled cloud-init [$ret_en]"
ret=$ret_en;;
*) error "Unexpected result";;
esac
debug 1 "$msg"
return "$ret"
}
main() {
local ret=""
ensure_sane_path
[ -d "$PATH_RUN_CI" ] || mkdir -p "$PATH_RUN_CI"
if [ "${1:+$1}" != "--force" ] && [ -f "$PATH_RUN_CI_CFG" ] &&
[ -f "$PATH_RUN_DI_RESULT" ]; then
if read ret < "$PATH_RUN_DI_RESULT"; then
if [ "$ret" = "0" ] || [ "$ret" = "1" ]; then
debug 2 "used cached result $ret. pass --force to re-run."
return "$ret";
fi
debug 1 "previous run returned unexpected '$ret'. Re-running."
else
error "failed to read result from $PATH_RUN_DI_RESULT!"
fi
fi
_main "$@"
ret=$?
echo "$ret" > "$PATH_RUN_DI_RESULT"
read_uptime
debug 1 "[up ${_RET}s]" "returning $ret"
return "$ret"
}
noop() {
:
}
case "${DI_MAIN}" in
main|print_info|noop) "${DI_MAIN}" "$@";;
*) error "unexpected value for DI_MAIN"; exit 1;;
esac