devstack/functions
2014-10-08 22:14:51 +00:00

577 lines
22 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# 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 ${FUNC_DIR}/functions-common
# Save trace setting
XTRACE=$(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 -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=""
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 -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 $conf_section logging_context_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [%(request_id)s %("$user_var")s %("$project_var")s%(color)s] %(instance)s%(color)s%(message)s"
iniset $conf_file $conf_section logging_default_format_string "%(asctime)s.%(msecs)03d %(color)s%(levelname)s %(name)s [-%(color)s] %(instance)s%(color)s%(message)s"
iniset $conf_file $conf_section logging_debug_format_suffix "from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d"
iniset $conf_file $conf_section logging_exception_prefix "%(color)s%(asctime)s.%(msecs)03d TRACE %(name)s %(instance)s"
}
# 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: