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functions
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functions
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# functions - Common functions used by DevStack components
#
# The following variables are assumed to be defined by certain functions:
# ``ENABLED_SERVICES``
# ``EROR_ON_CLONE``
# ``FILES``
# ``GLANCE_HOSTPORT``
# ``OFFLINE``
# ``PIP_DOWNLOAD_CACHE``
# ``PIP_USE_MIRRORS``
# ``RECLONE``
# ``TRACK_DEPENDS``
# ``http_proxy``, ``https_proxy``, ``no_proxy``
# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Exit 0 if address is in network or 1 if address is not in
# network or netaddr library is not installed.
# address_in_net ip-address ip-range
function address_in_net() {
python -c "
import netaddr
import sys
sys.exit(netaddr.IPAddress('$1') not in netaddr.IPNetwork('$2'))
"
}
# Wrapper for ``apt-get`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy`
# apt_get operation package [package ...]
function apt_get() {
[[ "$OFFLINE" = "True" || -z "$@" ]] && return
local sudo="sudo"
[[ "$(id -u)" = "0" ]] && sudo="env"
$sudo DEBIAN_FRONTEND=noninteractive \
http_proxy=$http_proxy https_proxy=$https_proxy \
no_proxy=$no_proxy \
apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"
}
# Gracefully cp only if source file/dir exists
# cp_it source destination
function cp_it {
if [ -e $1 ] || [ -d $1 ]; then
cp -pRL $1 $2
fi
}
# Prints "message" and exits
# die "message"
function die() {
local exitcode=$?
set +o xtrace
echo $@
exit $exitcode
}
# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message" and exits
# NOTE: env-var is the variable name without a '$'
# die_if_not_set env-var "message"
function die_if_not_set() {
(
local exitcode=$?
set +o xtrace
local evar=$1; shift
if ! is_set $evar || [ $exitcode != 0 ]; then
echo $@
exit -1
fi
)
}
# HTTP and HTTPS proxy servers are supported via the usual environment variables [1]
# ``http_proxy``, ``https_proxy`` and ``no_proxy``. They can be set in
# ``localrc`` or on the command line if necessary::
#
# [1] http://www.w3.org/Daemon/User/Proxies/ProxyClients.html
#
# http_proxy=http://proxy.example.com:3128/ no_proxy=repo.example.net ./stack.sh
function export_proxy_variables() {
if [[ -n "$http_proxy" ]]; then
export http_proxy=$http_proxy
fi
if [[ -n "$https_proxy" ]]; then
export https_proxy=$https_proxy
fi
if [[ -n "$no_proxy" ]]; then
export no_proxy=$no_proxy
fi
}
# Grab a numbered field from python prettytable output
# Fields are numbered starting with 1
# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.
# get_field field-number
function get_field() {
while read data; do
if [ "$1" -lt 0 ]; then
field="(\$(NF$1))"
else
field="\$$(($1 + 1))"
fi
echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"
done
}
# get_packages() collects a list of package names of any type from the
# prerequisite files in ``files/{apts|rpms}``. The list is intended
# to be passed to a package installer such as apt or yum.
#
# Only packages required for the services in ``ENABLED_SERVICES`` will be
# included. Two bits of metadata are recognized in the prerequisite files:
# - ``# NOPRIME`` defers installation to be performed later in stack.sh
# - ``# dist:DISTRO`` or ``dist:DISTRO1,DISTRO2`` limits the selection
# of the package to the distros listed. The distro names are case insensitive.
#
# Uses globals ``ENABLED_SERVICES``
# get_packages dir
function get_packages() {
local package_dir=$1
local file_to_parse
local service
if [[ -z "$package_dir" ]]; then
echo "No package directory supplied"
return 1
fi
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
for service in general ${ENABLED_SERVICES//,/ }; do
# Allow individual services to specify dependencies
if [[ -e ${package_dir}/${service} ]]; then
file_to_parse="${file_to_parse} $service"
fi
# NOTE(sdague) n-api needs glance for now because that's where
# glance client is
if [[ $service == n-api ]]; then
if [[ ! $file_to_parse =~ nova ]]; then
file_to_parse="${file_to_parse} nova"
fi
if [[ ! $file_to_parse =~ glance ]]; then
file_to_parse="${file_to_parse} glance"
fi
elif [[ $service == c-* ]]; then
if [[ ! $file_to_parse =~ cinder ]]; then
file_to_parse="${file_to_parse} cinder"
fi
elif [[ $service == ceilometer-* ]]; then
if [[ ! $file_to_parse =~ ceilometer ]]; then
file_to_parse="${file_to_parse} ceilometer"
fi
elif [[ $service == n-* ]]; then
if [[ ! $file_to_parse =~ nova ]]; then
file_to_parse="${file_to_parse} nova"
fi
elif [[ $service == g-* ]]; then
if [[ ! $file_to_parse =~ glance ]]; then
file_to_parse="${file_to_parse} glance"
fi
elif [[ $service == key* ]]; then
if [[ ! $file_to_parse =~ keystone ]]; then
file_to_parse="${file_to_parse} keystone"
fi
elif [[ $service == q-* ]]; then
if [[ ! $file_to_parse =~ quantum ]]; then
file_to_parse="${file_to_parse} quantum"
fi
fi
done
for file in ${file_to_parse}; do
local fname=${package_dir}/${file}
local OIFS line package distros distro
[[ -e $fname ]] || continue
OIFS=$IFS
IFS=$'\n'
for line in $(<${fname}); do
if [[ $line =~ "NOPRIME" ]]; then
continue
fi
if [[ $line =~ (.*)#.*dist:([^ ]*) ]]; then
# We are using BASH regexp matching feature.
package=${BASH_REMATCH[1]}
distros=${BASH_REMATCH[2]}
# In bash ${VAR,,} will lowecase VAR
[[ ${distros,,} =~ ${DISTRO,,} ]] && echo $package
continue
fi
echo ${line%#*}
done
IFS=$OIFS
done
}
# Determine OS Vendor, Release and Update
# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora
# Returns results in global variables:
# os_VENDOR - vendor name
# os_RELEASE - release
# os_UPDATE - update
# os_PACKAGE - package type
# os_CODENAME - vendor's codename for release
# GetOSVersion
GetOSVersion() {
# Figure out which vendor we are
if [[ -n "`which sw_vers 2>/dev/null`" ]]; then
# OS/X
os_VENDOR=`sw_vers -productName`
os_RELEASE=`sw_vers -productVersion`
os_UPDATE=${os_RELEASE##*.}
os_RELEASE=${os_RELEASE%.*}
os_PACKAGE=""
if [[ "$os_RELEASE" =~ "10.7" ]]; then
os_CODENAME="lion"
elif [[ "$os_RELEASE" =~ "10.6" ]]; then
os_CODENAME="snow leopard"
elif [[ "$os_RELEASE" =~ "10.5" ]]; then
os_CODENAME="leopard"
elif [[ "$os_RELEASE" =~ "10.4" ]]; then
os_CODENAME="tiger"
elif [[ "$os_RELEASE" =~ "10.3" ]]; then
os_CODENAME="panther"
else
os_CODENAME=""
fi
elif [[ -x $(which lsb_release 2>/dev/null) ]]; then
os_VENDOR=$(lsb_release -i -s)
os_RELEASE=$(lsb_release -r -s)
os_UPDATE=""
os_PACKAGE="rpm"
if [[ "Debian,Ubuntu" =~ $os_VENDOR ]]; then
os_PACKAGE="deb"
elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then
lsb_release -d -s | grep -q openSUSE
if [[ $? -eq 0 ]]; then
os_VENDOR="openSUSE"
fi
elif [[ $os_VENDOR =~ Red.*Hat ]]; then
os_VENDOR="Red Hat"
fi
os_CODENAME=$(lsb_release -c -s)
elif [[ -r /etc/redhat-release ]]; then
# Red Hat Enterprise Linux Server release 5.5 (Tikanga)
# CentOS release 5.5 (Final)
# CentOS Linux release 6.0 (Final)
# Fedora release 16 (Verne)
os_CODENAME=""
for r in "Red Hat" CentOS Fedora; do
os_VENDOR=$r
if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
ver=`sed -e 's/^.* \(.*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
os_CODENAME=${ver#*|}
os_RELEASE=${ver%|*}
os_UPDATE=${os_RELEASE##*.}
os_RELEASE=${os_RELEASE%.*}
break
fi
os_VENDOR=""
done
os_PACKAGE="rpm"
elif [[ -r /etc/SuSE-release ]]; then
for r in openSUSE "SUSE Linux"; do
if [[ "$r" = "SUSE Linux" ]]; then
os_VENDOR="SUSE LINUX"
else
os_VENDOR=$r
fi
if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then
os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`
os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`
os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`
break
fi
os_VENDOR=""
done
os_PACKAGE="rpm"
fi
export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
}
# git update using reference as a branch.
# git_update_branch ref
function git_update_branch() {
GIT_BRANCH=$1
git checkout -f origin/$GIT_BRANCH
# a local branch might not exist
git branch -D $GIT_BRANCH || true
git checkout -b $GIT_BRANCH
}
# git update using reference as a tag. Be careful editing source at that repo
# as working copy will be in a detached mode
# git_update_tag ref
function git_update_tag() {
GIT_TAG=$1
git tag -d $GIT_TAG
# fetching given tag only
git fetch origin tag $GIT_TAG
git checkout -f $GIT_TAG
}
# git update using reference as a branch.
# git_update_remote_branch ref
function git_update_remote_branch() {
GIT_BRANCH=$1
git checkout -b $GIT_BRANCH -t origin/$GIT_BRANCH
}
# Translate the OS version values into common nomenclature
# Sets ``DISTRO`` from the ``os_*`` values
function GetDistro() {
GetOSVersion
if [[ "$os_VENDOR" =~ (Ubuntu) ]]; then
# 'Everyone' refers to Ubuntu releases by the code name adjective
DISTRO=$os_CODENAME
elif [[ "$os_VENDOR" =~ (Fedora) ]]; then
# For Fedora, just use 'f' and the release
DISTRO="f$os_RELEASE"
elif [[ "$os_VENDOR" =~ (openSUSE) ]]; then
DISTRO="opensuse-$os_RELEASE"
elif [[ "$os_VENDOR" =~ (SUSE LINUX) ]]; then
# For SLE, also use the service pack
if [[ -z "$os_UPDATE" ]]; then
DISTRO="sle${os_RELEASE}"
else
DISTRO="sle${os_RELEASE}sp${os_UPDATE}"
fi
else
# Catch-all for now is Vendor + Release + Update
DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"
fi
export DISTRO
}
# Determine if current distribution is an Ubuntu-based distribution.
# It will also detect non-Ubuntu but Debian-based distros; this is not an issue
# since Debian and Ubuntu should be compatible.
# is_ubuntu
function is_ubuntu {
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
[ "$os_PACKAGE" = "deb" ]
}
# Determine if current distribution is a Fedora-based distribution
# (Fedora, RHEL, CentOS).
# is_fedora
function is_fedora {
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
[ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || [ "$os_VENDOR" = "CentOS" ]
}
# Determine if current distribution is a SUSE-based distribution
# (openSUSE, SLE).
# is_suse
function is_suse {
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
[ "$os_VENDOR" = "openSUSE" ] || [ "$os_VENDOR" = "SUSE LINUX" ]
}
# Exit after outputting a message about the distribution not being supported.
# exit_distro_not_supported [optional-string-telling-what-is-missing]
function exit_distro_not_supported {
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
if [ $# -gt 0 ]; then
echo "Support for $DISTRO is incomplete: no support for $@"
else
echo "Support for $DISTRO is incomplete."
fi
exit 1
}
# git clone only if directory doesn't exist already. Since ``DEST`` might not
# be owned by the installation user, we create the directory and change the
# ownership to the proper user.
# Set global RECLONE=yes to simulate a clone when dest-dir exists
# Set global ERROR_ON_CLONE=True to abort execution with an error if the git repo
# does not exist (default is False, meaning the repo will be cloned).
# Uses global ``OFFLINE``
# git_clone remote dest-dir branch
function git_clone {
[[ "$OFFLINE" = "True" ]] && return
GIT_REMOTE=$1
GIT_DEST=$2
GIT_REF=$3
if echo $GIT_REF | egrep -q "^refs"; then
# If our branch name is a gerrit style refs/changes/...
if [[ ! -d $GIT_DEST ]]; then
[[ "$ERROR_ON_CLONE" = "True" ]] && exit 1
git clone $GIT_REMOTE $GIT_DEST
fi
cd $GIT_DEST
git fetch $GIT_REMOTE $GIT_REF && git checkout FETCH_HEAD
else
# do a full clone only if the directory doesn't exist
if [[ ! -d $GIT_DEST ]]; then
[[ "$ERROR_ON_CLONE" = "True" ]] && exit 1
git clone $GIT_REMOTE $GIT_DEST
cd $GIT_DEST
# This checkout syntax works for both branches and tags
git checkout $GIT_REF
elif [[ "$RECLONE" == "yes" ]]; then
# if it does exist then simulate what clone does if asked to RECLONE
cd $GIT_DEST
# set the url to pull from and fetch
git remote set-url origin $GIT_REMOTE
git fetch origin
# remove the existing ignored files (like pyc) as they cause breakage
# (due to the py files having older timestamps than our pyc, so python
# thinks the pyc files are correct using them)
find $GIT_DEST -name '*.pyc' -delete
# handle GIT_REF accordingly to type (tag, branch)
if [[ -n "`git show-ref refs/tags/$GIT_REF`" ]]; then
git_update_tag $GIT_REF
elif [[ -n "`git show-ref refs/heads/$GIT_REF`" ]]; then
git_update_branch $GIT_REF
elif [[ -n "`git show-ref refs/remotes/origin/$GIT_REF`" ]]; then
git_update_remote_branch $GIT_REF
else
echo $GIT_REF is neither branch nor tag
exit 1
fi
fi
fi
}
# Comment an option in an INI file
# inicomment config-file section option
function inicomment() {
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" "$file"
}
# Uncomment an option in an INI file
# iniuncomment config-file section option
function iniuncomment() {
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" "$file"
}
# Get an option from an INI file
# iniget config-file section option
function iniget() {
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
echo ${line#*=}
}
# Determinate is the given option present in the INI file
# ini_has_option config-file section option
function ini_has_option() {
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
[ -n "$line" ]
}
# Set an option in an INI file
# iniset config-file section option value
function iniset() {
local file=$1
local section=$2
local option=$3
local value=$4
if ! grep -q "^\[$section\]" "$file"; then
# Add section at the end
echo -e "\n[$section]" >>"$file"
fi
if ! ini_has_option "$file" "$section" "$option"; then
# Add it
sed -i -e "/^\[$section\]/ a\\
$option = $value
" "$file"
else
# Replace it
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=[ \t]*\).*$|\1$value|" "$file"
fi
}
# is_service_enabled() checks if the service(s) specified as arguments are
# enabled by the user in ``ENABLED_SERVICES``.
#
# Multiple services specified as arguments are ``OR``'ed together; the test
# is a short-circuit boolean, i.e it returns on the first match.
#
# There are special cases for some 'catch-all' services::
# **nova** returns true if any service enabled start with **n-**
# **cinder** returns true if any service enabled start with **c-**
# **ceilometer** returns true if any service enabled start with **ceilometer**
# **glance** returns true if any service enabled start with **g-**
# **quantum** returns true if any service enabled start with **q-**
#
# Uses global ``ENABLED_SERVICES``
# is_service_enabled service [service ...]
function is_service_enabled() {
services=$@
for service in ${services}; do
[[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && return 0
[[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && return 0
[[ ${service} == "cinder" && ${ENABLED_SERVICES} =~ "c-" ]] && return 0
[[ ${service} == "ceilometer" && ${ENABLED_SERVICES} =~ "ceilometer-" ]] && return 0
[[ ${service} == "glance" && ${ENABLED_SERVICES} =~ "g-" ]] && return 0
[[ ${service} == "quantum" && ${ENABLED_SERVICES} =~ "q-" ]] && return 0
done
return 1
}
# remove extra commas from the input string (i.e. ``ENABLED_SERVICES``)
# _cleanup_service_list service-list
function _cleanup_service_list () {
echo "$1" | sed -e '
s/,,/,/g;
s/^,//;
s/,$//
'
}
# enable_service() adds the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are not already present.
#
# For example:
# enable_service qpid
#
# This function does not know about the special cases
# for nova, glance, and quantum built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# enable_service service [service ...]
function enable_service() {
local tmpsvcs="${ENABLED_SERVICES}"
for service in $@; do
if ! is_service_enabled $service; then
tmpsvcs+=",$service"
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
disable_negated_services
}
# disable_service() removes the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are present.
#
# For example:
# disable_service rabbit
#
# This function does not know about the special cases
# for nova, glance, and quantum built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# disable_service service [service ...]
function disable_service() {
local tmpsvcs=",${ENABLED_SERVICES},"
local service
for service in $@; do
if is_service_enabled $service; then
tmpsvcs=${tmpsvcs//,$service,/,}
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}
# disable_all_services() removes all current services
# from ``ENABLED_SERVICES`` to reset the configuration
# before a minimal installation
# Uses global ``ENABLED_SERVICES``
# disable_all_services
function disable_all_services() {
ENABLED_SERVICES=""
}
# Remove all services starting with '-'. For example, to install all default
# services except rabbit (rabbit) set in ``localrc``:
# ENABLED_SERVICES+=",-rabbit"
# Uses global ``ENABLED_SERVICES``
# disable_negated_services
function disable_negated_services() {
local tmpsvcs="${ENABLED_SERVICES}"
local service
for service in ${tmpsvcs//,/ }; do
if [[ ${service} == -* ]]; then
tmpsvcs=$(echo ${tmpsvcs}|sed -r "s/(,)?(-)?${service#-}(,)?/,/g")
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}
# Distro-agnostic package installer
# install_package package [package ...]
function install_package() {
if is_ubuntu; then
[[ "$NO_UPDATE_REPOS" = "True" ]] || apt_get update
NO_UPDATE_REPOS=True
apt_get install "$@"
elif is_fedora; then
yum_install "$@"
elif is_suse; then
zypper_install "$@"
else
exit_distro_not_supported "installing packages"
fi
}
# Distro-agnostic function to tell if a package is installed
# is_package_installed package [package ...]
function is_package_installed() {
if [[ -z "$@" ]]; then
return 1
fi
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
if [[ "$os_PACKAGE" = "deb" ]]; then
dpkg -l "$@" > /dev/null
elif [[ "$os_PACKAGE" = "rpm" ]]; then
rpm --quiet -q "$@"
else
exit_distro_not_supported "finding if a package is installed"
fi
}
# Test if the named environment variable is set and not zero length
# is_set env-var
function is_set() {
local var=\$"$1"
eval "[ -n \"$var\" ]" # For ex.: sh -c "[ -n \"$var\" ]" would be better, but several exercises depends on this
}
# Wrapper for ``pip install`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``PIP_DOWNLOAD_CACHE``, ``PIP_USE_MIRRORS``,
# ``TRACK_DEPENDS``, ``*_proxy`
# pip_install package [package ...]
function pip_install {
[[ "$OFFLINE" = "True" || -z "$@" ]] && return
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
if [[ $TRACK_DEPENDS = True ]] ; then
source $DEST/.venv/bin/activate
CMD_PIP=$DEST/.venv/bin/pip
SUDO_PIP="env"
else
SUDO_PIP="sudo"
CMD_PIP=$(get_pip_command)
fi
if [[ "$PIP_USE_MIRRORS" != "False" ]]; then
PIP_MIRROR_OPT="--use-mirrors"
fi
$SUDO_PIP PIP_DOWNLOAD_CACHE=${PIP_DOWNLOAD_CACHE:-/var/cache/pip} \
HTTP_PROXY=$http_proxy \
HTTPS_PROXY=$https_proxy \
NO_PROXY=$no_proxy \
$CMD_PIP install $PIP_MIRROR_OPT $@
}
# Service wrapper to restart services
# restart_service service-name
function restart_service() {
if is_ubuntu; then
sudo /usr/sbin/service $1 restart
else
sudo /sbin/service $1 restart
fi
}
# Helper to launch a service in a named screen
# screen_it service "command-line"
function screen_it {
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
SCREEN_DEV=`trueorfalse True $SCREEN_DEV`
if is_service_enabled $1; then
# Append the service to the screen rc file
screen_rc "$1" "$2"
screen -S $SCREEN_NAME -X screen -t $1
if [[ -n ${SCREEN_LOGDIR} ]]; then
screen -S $SCREEN_NAME -p $1 -X logfile ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log
screen -S $SCREEN_NAME -p $1 -X log on
ln -sf ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${1}.log
fi
if [[ "$SCREEN_DEV" = "True" ]]; then
# sleep to allow bash to be ready to be send the command - we are
# creating a new window in screen and then sends characters, so if
# bash isn't running by the time we send the command, nothing happens
sleep 1.5
NL=`echo -ne '\015'`
screen -S $SCREEN_NAME -p $1 -X stuff "$2 || touch \"$SERVICE_DIR/$SCREEN_NAME/$1.failure\"$NL"
else
screen -S $SCREEN_NAME -p $1 -X exec /bin/bash -c "$2 || touch \"$SERVICE_DIR/$SCREEN_NAME/$1.failure\""
fi
fi
}
# Screen rc file builder
# screen_rc service "command-line"
function screen_rc {
SCREEN_NAME=${SCREEN_NAME:-stack}
SCREENRC=$TOP_DIR/$SCREEN_NAME-screenrc
if [[ ! -e $SCREENRC ]]; then
# Name the screen session
echo "sessionname $SCREEN_NAME" > $SCREENRC
# Set a reasonable statusbar
echo "hardstatus alwayslastline '$SCREEN_HARDSTATUS'" >> $SCREENRC
echo "screen -t shell bash" >> $SCREENRC
fi
# If this service doesn't already exist in the screenrc file
if ! grep $1 $SCREENRC 2>&1 > /dev/null; then
NL=`echo -ne '\015'`
echo "screen -t $1 bash" >> $SCREENRC
echo "stuff \"$2$NL\"" >> $SCREENRC
fi
}
# Helper to remove the *.failure files under $SERVICE_DIR/$SCREEN_NAME
# This is used for service_check when all the screen_it are called finished
# init_service_check
function init_service_check() {
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
mkdir -p "$SERVICE_DIR/$SCREEN_NAME"
fi
rm -f "$SERVICE_DIR/$SCREEN_NAME"/*.failure
}
# Helper to get the status of each running service
# service_check
function service_check() {
local service
local failures
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
if [[ ! -d "$SERVICE_DIR/$SCREEN_NAME" ]]; then
echo "No service status directory found"
return
fi
# Check if there is any falure flag file under $SERVICE_DIR/$SCREEN_NAME
failures=`ls "$SERVICE_DIR/$SCREEN_NAME"/*.failure 2>/dev/null`
for service in $failures; do
service=`basename $service`
service=${service::-8}
echo "Error: Service $service is not running"
done
if [ -n "$failures" ]; then
echo "More details about the above errors can be found with screen, with ./rejoin-stack.sh"
fi
}
# ``pip install`` the dependencies of the package before ``setup.py develop``
# so pip and not distutils processes the dependency chain
# Uses globals ``TRACK_DEPENDES``, ``*_proxy`
# setup_develop directory
function setup_develop() {
if [[ $TRACK_DEPENDS = True ]] ; then
SUDO_CMD="env"
else
SUDO_CMD="sudo"
fi
(cd $1; \
python setup.py egg_info; \
raw_links=$(awk '/^.+/ {print "-f " $1}' *.egg-info/dependency_links.txt); \
depend_links=$(echo $raw_links | xargs); \
require_file=$([ ! -r *-info/requires.txt ] || echo "-r *-info/requires.txt"); \
pip_install $require_file $depend_links; \
$SUDO_CMD \
HTTP_PROXY=$http_proxy \
HTTPS_PROXY=$https_proxy \
NO_PROXY=$no_proxy \
python setup.py develop \
)
}
# Service wrapper to start services
# start_service service-name
function start_service() {
if is_ubuntu; then
sudo /usr/sbin/service $1 start
else
sudo /sbin/service $1 start
fi
}
# Service wrapper to stop services
# stop_service service-name
function stop_service() {
if is_ubuntu; then
sudo /usr/sbin/service $1 stop
else
sudo /sbin/service $1 stop
fi
}
# Normalize config values to True or False
# Accepts as False: 0 no false False FALSE
# Accepts as True: 1 yes true True TRUE
# VAR=$(trueorfalse default-value test-value)
function trueorfalse() {
local default=$1
local testval=$2
[[ -z "$testval" ]] && { echo "$default"; return; }
[[ "0 no false False FALSE" =~ "$testval" ]] && { echo "False"; return; }
[[ "1 yes true True TRUE" =~ "$testval" ]] && { echo "True"; return; }
echo "$default"
}
# 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
# Create a directory for the downloaded image tarballs.
mkdir -p $FILES/images
# Downloads the image (uec ami+aki style), then extracts it.
IMAGE_FNAME=`basename "$image_url"`
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: $image_url"
return
fi
fi
# OpenVZ-format images are provided as .tar.gz, but not decompressed prior to loading
if [[ "$image_url" =~ 'openvz' ]]; then
IMAGE="$FILES/${IMAGE_FNAME}"
IMAGE_NAME="${IMAGE_FNAME%.tar.gz}"
glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME" --is-public=True --container-format ami --disk-format ami < "${IMAGE}"
return
fi
KERNEL=""
RAMDISK=""
DISK_FORMAT=""
CONTAINER_FORMAT=""
UNPACK=""
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="${IMAGE_FNAME%.tgz}"
xdir="$FILES/images/$IMAGE_NAME"
rm -Rf "$xdir";
mkdir "$xdir"
tar -zxf $FILES/$IMAGE_FNAME -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 "$IMAGE" ".img")
fi
;;
*.img)
IMAGE="$FILES/$IMAGE_FNAME";
IMAGE_NAME=$(basename "$IMAGE" ".img")
format=$(qemu-img info ${IMAGE} | awk '/^file format/ { print $3; exit }')
if [[ ",qcow2,raw,vdi,vmdk,vpc," =~ ",$format," ]]; then
DISK_FORMAT=$format
else
DISK_FORMAT=raw
fi
CONTAINER_FORMAT=bare
;;
*.img.gz)
IMAGE="$FILES/${IMAGE_FNAME}"
IMAGE_NAME=$(basename "$IMAGE" ".img.gz")
DISK_FORMAT=raw
CONTAINER_FORMAT=bare
UNPACK=zcat
;;
*.qcow2)
IMAGE="$FILES/${IMAGE_FNAME}"
IMAGE_NAME=$(basename "$IMAGE" ".qcow2")
DISK_FORMAT=qcow2
CONTAINER_FORMAT=bare
;;
*) echo "Do not know what to do with $IMAGE_FNAME"; false;;
esac
if [ "$CONTAINER_FORMAT" = "bare" ]; then
if [ "$UNPACK" = "zcat" ]; then
glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME" --public --container-format=$CONTAINER_FORMAT --disk-format $DISK_FORMAT < <(zcat --force "${IMAGE}")
else
glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME" --public --container-format=$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.
KERNEL_ID=""; RAMDISK_ID="";
if [ -n "$KERNEL" ]; then
KERNEL_ID=$(glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME-kernel" --public --container-format aki --disk-format aki < "$KERNEL" | grep ' id ' | get_field 2)
fi
if [ -n "$RAMDISK" ]; then
RAMDISK_ID=$(glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME-ramdisk" --public --container-format ari --disk-format ari < "$RAMDISK" | grep ' id ' | get_field 2)
fi
glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "${IMAGE_NAME%.img}" --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