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functions
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#!/bin/bash
#
# functions - DevStack-specific functions
#
# The following variables are assumed to be defined by certain functions:
#
# - ``DATABASE_BACKENDS``
# - ``ENABLED_SERVICES``
# - ``FILES``
# - ``GLANCE_HOSTPORT``
#
# Include the common functions
FUNC_DIR=$(cd $(dirname "${BASH_SOURCE:-$0}") && pwd)
source ${FUNC_DIR}/functions-common
source ${FUNC_DIR}/inc/python
# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Check if a function already exists
function function_exists {
declare -f -F $1 > /dev/null
}
# Retrieve an image from a URL and upload into Glance.
# Uses the following variables:
#
# - ``FILES`` must be set to the cache dir
# - ``GLANCE_HOSTPORT``
#
# upload_image image-url glance-token
function upload_image {
local image_url=$1
local token=$2
local image image_fname image_name
# Create a directory for the downloaded image tarballs.
mkdir -p $FILES/images
image_fname=`basename "$image_url"`
if [[ $image_url != file* ]]; then
# Downloads the image (uec ami+akistyle), then extracts it.
if [[ ! -f $FILES/$image_fname || "$(stat -c "%s" $FILES/$image_fname)" = "0" ]]; then
wget --progress=dot:giga -c $image_url -O $FILES/$image_fname
if [[ $? -ne 0 ]]; then
echo "Not found: $image_url"
return
fi
fi
image="$FILES/${image_fname}"
else
# File based URL (RFC 1738): ``file://host/path``
# Remote files are not considered here.
# unix: ``file:///home/user/path/file``
# windows: ``file:///C:/Documents%20and%20Settings/user/path/file``
image=$(echo $image_url | sed "s/^file:\/\///g")
if [[ ! -f $image || "$(stat -c "%s" $image)" == "0" ]]; then
echo "Not found: $image_url"
return
fi
fi
# OpenVZ-format images are provided as .tar.gz, but not decompressed prior to loading
if [[ "$image_url" =~ 'openvz' ]]; then
image_name="${image_fname%.tar.gz}"
openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name" --public --container-format ami --disk-format ami < "${image}"
return
fi
# vmdk format images
if [[ "$image_url" =~ '.vmdk' ]]; then
image_name="${image_fname%.vmdk}"
# Before we can upload vmdk type images to glance, we need to know it's
# disk type, storage adapter, and networking adapter. These values are
# passed to glance as custom properties.
# We take these values from the vmdk file if populated. Otherwise, we use
# vmdk filename, which is expected in the following format:
#
# <name>-<disk type>;<storage adapter>;<network adapter>
#
# If the filename does not follow the above format then the vsphere
# driver will supply default values.
local vmdk_disktype=""
local vmdk_net_adapter="e1000"
local path_len
# vmdk adapter type
local vmdk_adapter_type="$(head -25 $image | { grep -a -F -m 1 'ddb.adapterType =' $image || true; })"
vmdk_adapter_type="${vmdk_adapter_type#*\"}"
vmdk_adapter_type="${vmdk_adapter_type%?}"
# vmdk disk type
local vmdk_create_type="$(head -25 $image | { grep -a -F -m 1 'createType=' $image || true; })"
vmdk_create_type="${vmdk_create_type#*\"}"
vmdk_create_type="${vmdk_create_type%\"*}"
descriptor_data_pair_msg="Monolithic flat and VMFS disks "`
`"should use a descriptor-data pair."
if [[ "$vmdk_create_type" = "monolithicSparse" ]]; then
vmdk_disktype="sparse"
elif [[ "$vmdk_create_type" = "monolithicFlat" || "$vmdk_create_type" = "vmfs" ]]; then
# Attempt to retrieve the ``*-flat.vmdk``
local flat_fname="$(head -25 $image | { grep -G 'RW\|RDONLY [0-9]+ FLAT\|VMFS' $image || true; })"
flat_fname="${flat_fname#*\"}"
flat_fname="${flat_fname%?}"
if [[ -z "$flat_fname" ]]; then
flat_fname="$image_name-flat.vmdk"
fi
path_len=`expr ${#image_url} - ${#image_fname}`
local flat_url="${image_url:0:$path_len}$flat_fname"
warn $LINENO "$descriptor_data_pair_msg"`
`" Attempt to retrieve the *-flat.vmdk: $flat_url"
if [[ $flat_url != file* ]]; then
if [[ ! -f $FILES/$flat_fname || \
"$(stat -c "%s" $FILES/$flat_fname)" = "0" ]]; then
wget --progress=dot:giga -c $flat_url -O $FILES/$flat_fname
fi
image="$FILES/${flat_fname}"
else
image=$(echo $flat_url | sed "s/^file:\/\///g")
if [[ ! -f $image || "$(stat -c "%s" $image)" == "0" ]]; then
echo "Flat disk not found: $flat_url"
return 1
fi
fi
image_name="${flat_fname}"
vmdk_disktype="preallocated"
elif [[ "$vmdk_create_type" = "streamOptimized" ]]; then
vmdk_disktype="streamOptimized"
elif [[ -z "$vmdk_create_type" ]]; then
# *-flat.vmdk provided: attempt to retrieve the descriptor (*.vmdk)
# to retrieve appropriate metadata
if [[ ${image_name: -5} != "-flat" ]]; then
warn $LINENO "Expected filename suffix: '-flat'."`
`" Filename provided: ${image_name}"
else
descriptor_fname="${image_name:0:${#image_name} - 5}.vmdk"
path_len=`expr ${#image_url} - ${#image_fname}`
local flat_path="${image_url:0:$path_len}"
local descriptor_url=$flat_path$descriptor_fname
warn $LINENO "$descriptor_data_pair_msg"`
`" Attempt to retrieve the descriptor *.vmdk: $descriptor_url"
if [[ $flat_path != file* ]]; then
if [[ ! -f $FILES/$descriptor_fname || \
"$(stat -c "%s" $FILES/$descriptor_fname)" = "0" ]]; then
wget -c $descriptor_url -O $FILES/$descriptor_fname
fi
descriptor_url="$FILES/$descriptor_fname"
else
descriptor_url=$(echo $descriptor_url | sed "s/^file:\/\///g")
if [[ ! -f $descriptor_url || \
"$(stat -c "%s" $descriptor_url)" == "0" ]]; then
echo "Descriptor not found: $descriptor_url"
return 1
fi
fi
vmdk_adapter_type="$(head -25 $descriptor_url | { grep -a -F -m 1 'ddb.adapterType =' $descriptor_url || true; })"
vmdk_adapter_type="${vmdk_adapter_type#*\"}"
vmdk_adapter_type="${vmdk_adapter_type%?}"
fi
vmdk_disktype="preallocated"
else
vmdk_disktype="preallocated"
fi
# NOTE: For backwards compatibility reasons, colons may be used in place
# of semi-colons for property delimiters but they are not permitted
# characters in NTFS filesystems.
property_string=`echo "$image_name" | { grep -oP '(?<=-)(?!.*-).*[:;].*[:;].*$' || true; }`
IFS=':;' read -a props <<< "$property_string"
vmdk_disktype="${props[0]:-$vmdk_disktype}"
vmdk_adapter_type="${props[1]:-$vmdk_adapter_type}"
vmdk_net_adapter="${props[2]:-$vmdk_net_adapter}"
openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name" --public --container-format bare --disk-format vmdk --property vmware_disktype="$vmdk_disktype" --property vmware_adaptertype="$vmdk_adapter_type" --property hw_vif_model="$vmdk_net_adapter" < "${image}"
return
fi
# XenServer-vhd-ovf-format images are provided as .vhd.tgz
# and should not be decompressed prior to loading
if [[ "$image_url" =~ '.vhd.tgz' ]]; then
image_name="${image_fname%.vhd.tgz}"
local force_vm_mode=""
if [[ "$image_name" =~ 'cirros' ]]; then
# Cirros VHD image currently only boots in PV mode.
# Nova defaults to PV for all VHD images, but
# the glance setting is needed for booting
# directly from volume.
force_vm_mode="--property vm_mode=xen"
fi
openstack \
--os-token $token \
--os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT \
image create \
"$image_name" --public \
--container-format=ovf --disk-format=vhd \
$force_vm_mode < "${image}"
return
fi
# .xen-raw.tgz suggests a Xen capable raw image inside a tgz.
# and should not be decompressed prior to loading.
# Setting metadata, so PV mode is used.
if [[ "$image_url" =~ '.xen-raw.tgz' ]]; then
image_name="${image_fname%.xen-raw.tgz}"
openstack \
--os-token $token \
--os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT \
image create \
"$image_name" --public \
--container-format=tgz --disk-format=raw \
--property vm_mode=xen < "${image}"
return
fi
local kernel=""
local ramdisk=""
local disk_format=""
local container_format=""
local unpack=""
local img_property=""
case "$image_fname" in
*.tar.gz|*.tgz)
# Extract ami and aki files
[ "${image_fname%.tar.gz}" != "$image_fname" ] &&
image_name="${image_fname%.tar.gz}" ||
image_name="${image_fname%.tgz}"
local xdir="$FILES/images/$image_name"
rm -Rf "$xdir";
mkdir "$xdir"
tar -zxf $image -C "$xdir"
kernel=$(for f in "$xdir/"*-vmlinuz* "$xdir/"aki-*/image; do
[ -f "$f" ] && echo "$f" && break; done; true)
ramdisk=$(for f in "$xdir/"*-initrd* "$xdir/"ari-*/image; do
[ -f "$f" ] && echo "$f" && break; done; true)
image=$(for f in "$xdir/"*.img "$xdir/"ami-*/image; do
[ -f "$f" ] && echo "$f" && break; done; true)
if [[ -z "$image_name" ]]; then
image_name=$(basename "$image" ".img")
fi
;;
*.img)
image_name=$(basename "$image" ".img")
local format=$(qemu-img info ${image} | awk '/^file format/ { print $3; exit }')
if [[ ",qcow2,raw,vdi,vmdk,vpc," =~ ",$format," ]]; then
disk_format=$format
else
disk_format=raw
fi
container_format=bare
;;
*.img.gz)
image_name=$(basename "$image" ".img.gz")
disk_format=raw
container_format=bare
unpack=zcat
;;
*.qcow2)
image_name=$(basename "$image" ".qcow2")
disk_format=qcow2
container_format=bare
;;
*.iso)
image_name=$(basename "$image" ".iso")
disk_format=iso
container_format=bare
;;
*.vhd|*.vhdx|*.vhd.gz|*.vhdx.gz)
local extension="${image_fname#*.}"
image_name=$(basename "$image" ".$extension")
disk_format=vhd
container_format=bare
if [ "${image_fname##*.}" == "gz" ]; then
unpack=zcat
fi
;;
*) echo "Do not know what to do with $image_fname"; false;;
esac
if is_arch "ppc64"; then
img_property="--property hw_cdrom_bus=scsi"
fi
if [ "$container_format" = "bare" ]; then
if [ "$unpack" = "zcat" ]; then
openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name" $img_property --public --container-format=$container_format --disk-format $disk_format < <(zcat --force "${image}")
else
openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name" $img_property --public --container-format=$container_format --disk-format $disk_format < "${image}"
fi
else
# Use glance client to add the kernel the root filesystem.
# We parse the results of the first upload to get the glance ID of the
# kernel for use when uploading the root filesystem.
local kernel_id="" ramdisk_id="";
if [ -n "$kernel" ]; then
kernel_id=$(openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name-kernel" $img_property --public --container-format aki --disk-format aki < "$kernel" | grep ' id ' | get_field 2)
fi
if [ -n "$ramdisk" ]; then
ramdisk_id=$(openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "$image_name-ramdisk" $img_property --public --container-format ari --disk-format ari < "$ramdisk" | grep ' id ' | get_field 2)
fi
openstack --os-token $token --os-url $GLANCE_SERVICE_PROTOCOL://$GLANCE_HOSTPORT image create "${image_name%.img}" $img_property --public --container-format ami --disk-format ami ${kernel_id:+--property kernel_id=$kernel_id} ${ramdisk_id:+--property ramdisk_id=$ramdisk_id} < "${image}"
fi
}
# Set the database backend to use
# When called from stackrc/localrc DATABASE_BACKENDS has not been
# initialized yet, just save the configuration selection and call back later
# to validate it.
#
# ``$1`` - the name of the database backend to use (mysql, postgresql, ...)
function use_database {
if [[ -z "$DATABASE_BACKENDS" ]]; then
# No backends registered means this is likely called from ``localrc``
# This is now deprecated usage
DATABASE_TYPE=$1
DEPRECATED_TEXT="$DEPRECATED_TEXT\nThe database backend needs to be properly set in ENABLED_SERVICES; use_database is deprecated localrc\n"
else
# This should no longer get called...here for posterity
use_exclusive_service DATABASE_BACKENDS DATABASE_TYPE $1
fi
}
# Wait for an HTTP server to start answering requests
# wait_for_service timeout url
function wait_for_service {
local timeout=$1
local url=$2
timeout $timeout sh -c "while ! curl -k --noproxy '*' -s $url >/dev/null; do sleep 1; done"
}
# ping check
# Uses globals ``ENABLED_SERVICES``
# ping_check from-net ip boot-timeout expected
function ping_check {
if is_service_enabled neutron; then
_ping_check_neutron "$1" $2 $3 $4
return
fi
_ping_check_novanet "$1" $2 $3 $4
}
# ping check for nova
# Uses globals ``MULTI_HOST``, ``PRIVATE_NETWORK``
function _ping_check_novanet {
local from_net=$1
local ip=$2
local boot_timeout=$3
local expected=${4:-"True"}
local check_command=""
MULTI_HOST=$(trueorfalse False MULTI_HOST)
if [[ "$MULTI_HOST" = "True" && "$from_net" = "$PRIVATE_NETWORK_NAME" ]]; then
return
fi
if [[ "$expected" = "True" ]]; then
check_command="while ! ping -c1 -w1 $ip; do sleep 1; done"
else
check_command="while ping -c1 -w1 $ip; do sleep 1; done"
fi
if ! timeout $boot_timeout sh -c "$check_command"; then
if [[ "$expected" = "True" ]]; then
die $LINENO "[Fail] Couldn't ping server"
else
die $LINENO "[Fail] Could ping server"
fi
fi
}
# Get ip of instance
function get_instance_ip {
local vm_id=$1
local network_name=$2
local nova_result="$(nova show $vm_id)"
local ip=$(echo "$nova_result" | grep "$network_name" | get_field 2)
if [[ $ip = "" ]];then
echo "$nova_result"
die $LINENO "[Fail] Coudn't get ipaddress of VM"
fi
echo $ip
}
# ssh check
# ssh_check net-name key-file floating-ip default-user active-timeout
function ssh_check {
if is_service_enabled neutron; then
_ssh_check_neutron "$1" $2 $3 $4 $5
return
fi
_ssh_check_novanet "$1" $2 $3 $4 $5
}
function _ssh_check_novanet {
local NET_NAME=$1
local KEY_FILE=$2
local FLOATING_IP=$3
local DEFAULT_INSTANCE_USER=$4
local ACTIVE_TIMEOUT=$5
local probe_cmd=""
if ! timeout $ACTIVE_TIMEOUT sh -c "while ! ssh -o StrictHostKeyChecking=no -i $KEY_FILE ${DEFAULT_INSTANCE_USER}@$FLOATING_IP echo success; do sleep 1; done"; then
die $LINENO "server didn't become ssh-able!"
fi
}
# Get the location of the $module-rootwrap executables, where module is cinder
# or nova.
# get_rootwrap_location module
function get_rootwrap_location {
local module=$1
echo "$(get_python_exec_prefix)/$module-rootwrap"
}
# Path permissions sanity check
# check_path_perm_sanity path
function check_path_perm_sanity {
# Ensure no element of the path has 0700 permissions, which is very
# likely to cause issues for daemons. Inspired by default 0700
# homedir permissions on RHEL and common practice of making DEST in
# the stack user's homedir.
local real_path=$(readlink -f $1)
local rebuilt_path=""
for i in $(echo ${real_path} | tr "/" " "); do
rebuilt_path=$rebuilt_path"/"$i
if [[ $(stat -c '%a' ${rebuilt_path}) = 700 ]]; then
echo "*** DEST path element"
echo "*** ${rebuilt_path}"
echo "*** appears to have 0700 permissions."
echo "*** This is very likely to cause fatal issues for devstack daemons."
if [[ -n "$SKIP_PATH_SANITY" ]]; then
return
else
echo "*** Set SKIP_PATH_SANITY to skip this check"
die $LINENO "Invalid path permissions"
fi
fi
done
}
# This function recursively compares versions, and is not meant to be
# called by anything other than vercmp_numbers below. This function does
# not work with alphabetic versions.
#
# _vercmp_r sep ver1 ver2
function _vercmp_r {
typeset sep
typeset -a ver1=() ver2=()
sep=$1; shift
ver1=("${@:1:sep}")
ver2=("${@:sep+1}")
if ((ver1 > ver2)); then
echo 1; return 0
elif ((ver2 > ver1)); then
echo -1; return 0
fi
if ((sep <= 1)); then
echo 0; return 0
fi
_vercmp_r $((sep-1)) "${ver1[@]:1}" "${ver2[@]:1}"
}
# This function compares two versions and is meant to be called by
# external callers. Please note the function assumes non-alphabetic
# versions. For example, this will work:
#
# vercmp_numbers 1.10 1.4
#
# The above will return "1", as 1.10 is greater than 1.4.
#
# vercmp_numbers 5.2 6.4
#
# The above will return "-1", as 5.2 is less than 6.4.
#
# vercmp_numbers 4.0 4.0
#
# The above will return "0", as the versions are equal.
#
# vercmp_numbers ver1 ver2
function vercmp_numbers {
typeset v1=$1 v2=$2 sep
typeset -a ver1 ver2
IFS=. read -ra ver1 <<< "$v1"
IFS=. read -ra ver2 <<< "$v2"
_vercmp_r "${#ver1[@]}" "${ver1[@]}" "${ver2[@]}"
}
# This function sets log formatting options for colorizing log
# output to stdout. It is meant to be called by lib modules.
# The last two parameters are optional and can be used to specify
# non-default value for project and user format variables.
# Defaults are respectively 'project_name' and 'user_name'
#
# setup_colorized_logging something.conf SOMESECTION
function setup_colorized_logging {
local conf_file=$1
local conf_section=$2
local project_var=${3:-"project_name"}
local user_var=${4:-"user_name"}
# Add color to logging output
iniset $conf_file $conf_section logging_context_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [[01;36m%(request_id)s [00;36m%("$user_var")s %("$project_var")s%(color)s] [01;35m%(instance)s%(color)s%(message)s[00m"
iniset $conf_file $conf_section logging_default_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [[00;36m-%(color)s] [01;35m%(instance)s%(color)s%(message)s[00m"
iniset $conf_file $conf_section logging_debug_format_suffix "[00;33mfrom (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d[00m"
iniset $conf_file $conf_section logging_exception_prefix "%(color)s%(asctime)s.%(msecs)03d TRACE %(name)s [01;35m%(instance)s[00m"
}
# These functions are provided for basic fall-back functionality for
# projects that include parts of devstack (grenade). stack.sh will
# override these with more specific versions for devstack (with fancy
# spinners, etc). We never override an existing version
if ! function_exists echo_summary; then
function echo_summary {
echo $@
}
fi
if ! function_exists echo_nolog; then
function echo_nolog {
echo $@
}
fi
# create_disk - Create backing disk
function create_disk {
local node_number
local disk_image=${1}
local storage_data_dir=${2}
local loopback_disk_size=${3}
# Create a loopback disk and format it to XFS.
if [[ -e ${disk_image} ]]; then
if egrep -q ${storage_data_dir} /proc/mounts; then
sudo umount ${storage_data_dir}/drives/sdb1
sudo rm -f ${disk_image}
fi
fi
sudo mkdir -p ${storage_data_dir}/drives/images
sudo truncate -s ${loopback_disk_size} ${disk_image}
# Make a fresh XFS filesystem. Use bigger inodes so xattr can fit in
# a single inode. Keeping the default inode size (256) will result in multiple
# inodes being used to store xattr. Retrieving the xattr will be slower
# since we have to read multiple inodes. This statement is true for both
# Swift and Ceph.
sudo mkfs.xfs -f -i size=1024 ${disk_image}
# Mount the disk with mount options to make it as efficient as possible
if ! egrep -q ${storage_data_dir} /proc/mounts; then
sudo mount -t xfs -o loop,noatime,nodiratime,nobarrier,logbufs=8 \
${disk_image} ${storage_data_dir}
fi
}
# Restore xtrace
$XTRACE
# Local variables:
# mode: shell-script
# End: