openstack/devstack
Code Issues Proposed changes
c82c30c55a
devstack/functions-common
Dean Troyer 5ce44cd63b Fix is_keystone_enabled() 
is_keystone_enabled() was calling is_service_enabled(), which is what called
is_keystone_enabled() in the first place.  Make it work as designed and
also change calls to use the full service name.  Note that this is all
still comptible with the prior usage of 'is_service_enabled key'.

Change-Id: I9c28377ecf074b7996461d2a4ca12d88dfc4d47e
2015-02-16 10:52:18 -06:00

2011 lines
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#!/bin/bash
#
# functions-common - Common functions used by DevStack components
#
# The canonical copy of this file is maintained in the DevStack repo.
# All modifications should be made there and then sync'ed to other repos
# as required.
#
# This file is sorted alphabetically within the function groups.
#
# - Config Functions
# - Control Functions
# - Distro Functions
# - Git Functions
# - OpenStack Functions
# - Package Functions
# - Process Functions
# - Service Functions
# - System Functions
#
# The following variables are assumed to be defined by certain functions:
#
# - ``ENABLED_SERVICES``
# - ``ERROR_ON_CLONE``
# - ``FILES``
# - ``OFFLINE``
# - ``RECLONE``
# - ``REQUIREMENTS_DIR``
# - ``STACK_USER``
# - ``TRACK_DEPENDS``
# - ``UNDO_REQUIREMENTS``
# - ``http_proxy``, ``https_proxy``, ``no_proxy``
#
# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Global Config Variables
declare -A GITREPO
declare -A GITBRANCH
declare -A GITDIR
TRACK_DEPENDS=${TRACK_DEPENDS:-False}
# Config Functions
# ================
# Append a new option in an ini file without replacing the old value
# iniadd config-file section option value1 value2 value3 ...
function iniadd {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
shift 3
local values="$(iniget_multiline $file $section $option) $@"
iniset_multiline $file $section $option $values
$xtrace
}
# Comment an option in an INI file
# inicomment config-file section option
function inicomment {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" "$file"
$xtrace
}
# Get an option from an INI file
# iniget config-file section option
function iniget {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
echo ${line#*=}
$xtrace
}
# Get a multiple line option from an INI file
# iniget_multiline config-file section option
function iniget_multiline {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
local values
values=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { s/^$option[ \t]*=[ \t]*//gp; }" "$file")
echo ${values}
$xtrace
}
# Determinate is the given option present in the INI file
# ini_has_option config-file section option
function ini_has_option {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
$xtrace
[ -n "$line" ]
}
# Add another config line for a multi-line option.
# It's normally called after iniset of the same option and assumes
# that the section already exists.
#
# Note that iniset_multiline requires all the 'lines' to be supplied
# in the argument list. Doing that will cause incorrect configuration
# if spaces are used in the config values.
#
# iniadd_literal config-file section option value
function iniadd_literal {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
local value=$4
[[ -z $section || -z $option ]] && return
# Add it
sed -i -e "/^\[$section\]/ a\\
$option = $value
" "$file"
$xtrace
}
function inidelete {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
[[ -z $section || -z $option ]] && return
# Remove old values
sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file"
$xtrace
}
# Set an option in an INI file
# iniset config-file section option value
function iniset {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
local value=$4
[[ -z $section || -z $option ]] && return
if ! grep -q "^\[$section\]" "$file" 2>/dev/null; then
# Add section at the end
echo -e "\n[$section]" >>"$file"
fi
if ! ini_has_option "$file" "$section" "$option"; then
# Add it
sed -i -e "/^\[$section\]/ a\\
$option = $value
" "$file"
else
local sep=$(echo -ne "\x01")
# Replace it
sed -i -e '/^\['${section}'\]/,/^\[.*\]/ s'${sep}'^\('${option}'[ \t]*=[ \t]*\).*$'${sep}'\1'"${value}"${sep} "$file"
fi
$xtrace
}
# Set a multiple line option in an INI file
# iniset_multiline config-file section option value1 value2 valu3 ...
function iniset_multiline {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
shift 3
local values
for v in $@; do
# The later sed command inserts each new value in the line next to
# the section identifier, which causes the values to be inserted in
# the reverse order. Do a reverse here to keep the original order.
values="$v ${values}"
done
if ! grep -q "^\[$section\]" "$file"; then
# Add section at the end
echo -e "\n[$section]" >>"$file"
else
# Remove old values
sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file"
fi
# Add new ones
for v in $values; do
sed -i -e "/^\[$section\]/ a\\
$option = $v
" "$file"
done
$xtrace
}
# Uncomment an option in an INI file
# iniuncomment config-file section option
function iniuncomment {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" "$file"
$xtrace
}
# Normalize config values to True or False
# Accepts as False: 0 no No NO false False FALSE
# Accepts as True: 1 yes Yes YES true True TRUE
# VAR=$(trueorfalse default-value test-value)
function trueorfalse {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local default=$1
local literal=$2
local testval=${!literal:-}
[[ -z "$testval" ]] && { echo "$default"; return; }
[[ "0 no No NO false False FALSE" =~ "$testval" ]] && { echo "False"; return; }
[[ "1 yes Yes YES true True TRUE" =~ "$testval" ]] && { echo "True"; return; }
echo "$default"
$xtrace
}
function isset {
nounset=$(set +o | grep nounset)
set +o nounset
[[ -n "${!1+x}" ]]
result=$?
$nounset
return $result
}
# Control Functions
# =================
# Prints backtrace info
# filename:lineno:function
# backtrace level
function backtrace {
local level=$1
local deep=$((${#BASH_SOURCE[@]} - 1))
echo "[Call Trace]"
while [ $level -le $deep ]; do
echo "${BASH_SOURCE[$deep]}:${BASH_LINENO[$deep-1]}:${FUNCNAME[$deep-1]}"
deep=$((deep - 1))
done
}
# Prints line number and "message" then exits
# die $LINENO "message"
function die {
local exitcode=$?
set +o xtrace
local line=$1; shift
if [ $exitcode == 0 ]; then
exitcode=1
fi
backtrace 2
err $line "$*"
# Give buffers a second to flush
sleep 1
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 $LINENO env-var "message"
function die_if_not_set {
local exitcode=$?
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local line=$1; shift
local evar=$1; shift
if ! is_set $evar || [ $exitcode != 0 ]; then
die $line "$*"
fi
$xtrace
}
# Prints line number and "message" in error format
# err $LINENO "message"
function err {
local exitcode=$?
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local msg="[ERROR] ${BASH_SOURCE[2]}:$1 $2"
echo $msg 1>&2;
if [[ -n ${LOGDIR} ]]; then
echo $msg >> "${LOGDIR}/error.log"
fi
$xtrace
return $exitcode
}
# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message"
# NOTE: env-var is the variable name without a '$'
# err_if_not_set $LINENO env-var "message"
function err_if_not_set {
local exitcode=$?
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local line=$1; shift
local evar=$1; shift
if ! is_set $evar || [ $exitcode != 0 ]; then
err $line "$*"
fi
$xtrace
return $exitcode
}
# Exit after outputting a message about the distribution not being supported.
# exit_distro_not_supported [optional-string-telling-what-is-missing]
function exit_distro_not_supported {
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
if [ $# -gt 0 ]; then
die $LINENO "Support for $DISTRO is incomplete: no support for $@"
else
die $LINENO "Support for $DISTRO is incomplete."
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
}
# Prints line number and "message" in warning format
# warn $LINENO "message"
function warn {
local exitcode=$?
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local msg="[WARNING] ${BASH_SOURCE[2]}:$1 $2"
echo $msg 1>&2;
if [[ -n ${LOGDIR} ]]; then
echo $msg >> "${LOGDIR}/error.log"
fi
$xtrace
return $exitcode
}
# Distro Functions
# ================
# Determine OS Vendor, Release and Update
# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora
# Returns results in global variables:
# ``os_VENDOR`` - vendor name: ``Ubuntu``, ``Fedora``, etc
# ``os_RELEASE`` - major release: ``14.04`` (Ubuntu), ``20`` (Fedora)
# ``os_UPDATE`` - update: ex. the ``5`` in ``RHEL6.5``
# ``os_PACKAGE`` - package type: ``deb`` or ``rpm``
# ``os_CODENAME`` - vendor's codename for release: ``snow leopard``, ``trusty``
os_VENDOR=""
os_RELEASE=""
os_UPDATE=""
os_PACKAGE=""
os_CODENAME=""
# GetOSVersion
function GetOSVersion {
# Figure out which vendor we are
if [[ -x "`which sw_vers 2>/dev/null`" ]]; then
# OS/X
os_VENDOR=`sw_vers -productName`
os_RELEASE=`sw_vers -productVersion`
os_UPDATE=${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,LinuxMint" =~ $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 == "openSUSE project" ]]; then
os_VENDOR="openSUSE"
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)
# Red Hat Enterprise Linux Server release 7.0 Beta (Maipo)
# CentOS release 5.5 (Final)
# CentOS Linux release 6.0 (Final)
# Fedora release 16 (Verne)
# XenServer release 6.2.0-70446c (xenenterprise)
os_CODENAME=""
for r in "Red Hat" CentOS Fedora XenServer; do
os_VENDOR=$r
if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
ver=`sed -e 's/^.* \([0-9].*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
os_CODENAME=${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"
# If lsb_release is not installed, we should be able to detect Debian OS
elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then
os_VENDOR="Debian"
os_PACKAGE="deb"
os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')
os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')
fi
export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
}
# Translate the OS version values into common nomenclature
# Sets global ``DISTRO`` from the ``os_*`` values
declare DISTRO
function GetDistro {
GetOSVersion
if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then
# 'Everyone' refers to Ubuntu / Debian 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
elif [[ "$os_VENDOR" =~ (Red Hat) || \
"$os_VENDOR" =~ (CentOS) || \
"$os_VENDOR" =~ (OracleServer) ]]; then
# Drop the . release as we assume it's compatible
DISTRO="rhel${os_RELEASE::1}"
elif [[ "$os_VENDOR" =~ (XenServer) ]]; then
DISTRO="xs$os_RELEASE"
else
# Catch-all for now is Vendor + Release + Update
DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"
fi
export DISTRO
}
# Utility function for checking machine architecture
# is_arch arch-type
function is_arch {
[[ "$(uname -m)" == "$1" ]]
}
# Quick check for a rackspace host; n.b. rackspace provided images
# have these Xen tools installed but a custom image may not.
function is_rackspace {
[ -f /usr/bin/xenstore-ls ] && \
sudo /usr/bin/xenstore-ls vm-data | grep -q "Rackspace"
}
# Determine if current distribution is a Fedora-based distribution
# (Fedora, RHEL, CentOS, etc).
# is_fedora
function is_fedora {
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
[ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || \
[ "$os_VENDOR" = "CentOS" ] || [ "$os_VENDOR" = "OracleServer" ]
}
# 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" ] || [ "$os_VENDOR" = "SUSE LINUX" ]
}
# Determine if current distribution is an Ubuntu-based distribution
# It will also detect non-Ubuntu but Debian-based distros
# is_ubuntu
function is_ubuntu {
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
[ "$os_PACKAGE" = "deb" ]
}
# Git Functions
# =============
# Returns openstack release name for a given branch name
# ``get_release_name_from_branch branch-name``
function get_release_name_from_branch {
local branch=$1
if [[ $branch =~ "stable/" || $branch =~ "proposed/" ]]; then
echo ${branch#*/}
else
echo "master"
fi
}
# 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 globals ``ERROR_ON_CLONE``, ``OFFLINE``, ``RECLONE``
# git_clone remote dest-dir branch
function git_clone {
local git_remote=$1
local git_dest=$2
local git_ref=$3
local orig_dir=$(pwd)
local git_clone_flags=""
RECLONE=$(trueorfalse False RECLONE)
if [[ "${GIT_DEPTH}" -gt 0 ]]; then
git_clone_flags="$git_clone_flags --depth $GIT_DEPTH"
fi
if [[ "$OFFLINE" = "True" ]]; then
echo "Running in offline mode, clones already exist"
# print out the results so we know what change was used in the logs
cd $git_dest
git show --oneline | head -1
cd $orig_dir
return
fi
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" ]] && \
die $LINENO "Cloning not allowed in this configuration"
git_timed clone $git_clone_flags $git_remote $git_dest
fi
cd $git_dest
git_timed 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" ]] && \
die $LINENO "Cloning not allowed in this configuration"
git_timed clone $git_clone_flags $git_remote $git_dest
cd $git_dest
# This checkout syntax works for both branches and tags
git checkout $git_ref
elif [[ "$RECLONE" = "True" ]]; 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_timed 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
die $LINENO "$git_ref is neither branch nor tag"
fi
fi
fi
# print out the results so we know what change was used in the logs
cd $git_dest
git show --oneline | head -1
cd $orig_dir
}
# A variation on git clone that lets us specify a project by it's
# actual name, like oslo.config. This is exceptionally useful in the
# library installation case
function git_clone_by_name {
local name=$1
local repo=${GITREPO[$name]}
local dir=${GITDIR[$name]}
local branch=${GITBRANCH[$name]}
git_clone $repo $dir $branch
}
# git can sometimes get itself infinitely stuck with transient network
# errors or other issues with the remote end. This wraps git in a
# timeout/retry loop and is intended to watch over non-local git
# processes that might hang. GIT_TIMEOUT, if set, is passed directly
# to timeout(1); otherwise the default value of 0 maintains the status
# quo of waiting forever.
# usage: git_timed <git-command>
function git_timed {
local count=0
local timeout=0
if [[ -n "${GIT_TIMEOUT}" ]]; then
timeout=${GIT_TIMEOUT}
fi
until timeout -s SIGINT ${timeout} git "$@"; do
# 124 is timeout(1)'s special return code when it reached the
# timeout; otherwise assume fatal failure
if [[ $? -ne 124 ]]; then
die $LINENO "git call failed: [git $@]"
fi
count=$(($count + 1))
warn "timeout ${count} for git call: [git $@]"
if [ $count -eq 3 ]; then
die $LINENO "Maximum of 3 git retries reached"
fi
sleep 5
done
}
# git update using reference as a branch.
# git_update_branch ref
function git_update_branch {
local 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 branch.
# git_update_remote_branch ref
function git_update_remote_branch {
local git_branch=$1
git checkout -b $git_branch -t origin/$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 {
local git_tag=$1
git tag -d $git_tag
# fetching given tag only
git_timed fetch origin tag $git_tag
git checkout -f $git_tag
}
# OpenStack Functions
# ===================
# Get the default value for HOST_IP
# get_default_host_ip fixed_range floating_range host_ip_iface host_ip
function get_default_host_ip {
local fixed_range=$1
local floating_range=$2
local host_ip_iface=$3
local host_ip=$4
# Find the interface used for the default route
host_ip_iface=${host_ip_iface:-$(ip route | sed -n '/^default/{ s/.*dev \(\w\+\)\s\+.*/\1/; p; }' | head -1)}
# Search for an IP unless an explicit is set by ``HOST_IP`` environment variable
if [ -z "$host_ip" -o "$host_ip" == "dhcp" ]; then
host_ip=""
local host_ips=$(LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/"); print parts[1]}')
local ip
for ip in $host_ips; do
# Attempt to filter out IP addresses that are part of the fixed and
# floating range. Note that this method only works if the ``netaddr``
# python library is installed. If it is not installed, an error
# will be printed and the first IP from the interface will be used.
# If that is not correct set ``HOST_IP`` in ``localrc`` to the correct
# address.
if ! (address_in_net $ip $fixed_range || address_in_net $ip $floating_range); then
host_ip=$ip
break;
fi
done
fi
echo $host_ip
}
# Generates hex string from ``size`` byte of pseudo random data
# generate_hex_string size
function generate_hex_string {
local size=$1
hexdump -n "$size" -v -e '/1 "%02x"' /dev/urandom
}
# 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 {
local data 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
}
# Add a policy to a policy.json file
# Do nothing if the policy already exists
# ``policy_add policy_file policy_name policy_permissions``
function policy_add {
local policy_file=$1
local policy_name=$2
local policy_perm=$3
if grep -q ${policy_name} ${policy_file}; then
echo "Policy ${policy_name} already exists in ${policy_file}"
return
fi
# Add a terminating comma to policy lines without one
# Remove the closing '}' and all lines following to the end-of-file
local tmpfile=$(mktemp)
uniq ${policy_file} | sed -e '
s/]$/],/
/^[}]/,$d
' > ${tmpfile}
# Append policy and closing brace
echo " \"${policy_name}\": ${policy_perm}" >>${tmpfile}
echo "}" >>${tmpfile}
mv ${tmpfile} ${policy_file}
}
# Gets or creates a domain
# Usage: get_or_create_domain <name> <description>
function get_or_create_domain {
local os_url="$KEYSTONE_SERVICE_URI_V3"
# Gets domain id
local domain_id=$(
# Gets domain id
openstack --os-token=$OS_TOKEN --os-url=$os_url \
--os-identity-api-version=3 domain show $1 \
-f value -c id 2>/dev/null ||
# Creates new domain
openstack --os-token=$OS_TOKEN --os-url=$os_url \
--os-identity-api-version=3 domain create $1 \
--description "$2" \
-f value -c id
)
echo $domain_id
}
# Gets or creates group
# Usage: get_or_create_group <groupname> [<domain> <description>]
function get_or_create_group {
local domain=${2:+--domain ${2}}
local desc="${3:-}"
local os_url="$KEYSTONE_SERVICE_URI_V3"
# Gets group id
local group_id=$(
# Creates new group with --or-show
openstack --os-token=$OS_TOKEN --os-url=$os_url \
--os-identity-api-version=3 group create $1 \
$domain --description "$desc" --or-show \
-f value -c id
)
echo $group_id
}
# Gets or creates user
# Usage: get_or_create_user <username> <password> [<email> [<domain>]]
function get_or_create_user {
if [[ ! -z "$3" ]]; then
local email="--email=$3"
else
local email=""
fi
local os_cmd="openstack"
local domain=""
if [[ ! -z "$4" ]]; then
domain="--domain=$4"
os_cmd="$os_cmd --os-url=$KEYSTONE_SERVICE_URI_V3 --os-identity-api-version=3"
fi
# Gets user id
local user_id=$(
# Creates new user with --or-show
$os_cmd user create \
$1 \
--password "$2" \
$email \
$domain \
--or-show \
-f value -c id
)
echo $user_id
}
# Gets or creates project
# Usage: get_or_create_project <name> [<domain>]
function get_or_create_project {
# Gets project id
local os_cmd="openstack"
local domain=""
if [[ ! -z "$2" ]]; then
domain="--domain=$2"
os_cmd="$os_cmd --os-url=$KEYSTONE_SERVICE_URI_V3 --os-identity-api-version=3"
fi
local project_id=$(
# Creates new project with --or-show
$os_cmd project create $1 $domain --or-show -f value -c id
)
echo $project_id
}
# Gets or creates role
# Usage: get_or_create_role <name>
function get_or_create_role {
local role_id=$(
# Creates role with --or-show
openstack role create $1 --or-show -f value -c id
)
echo $role_id
}
# Gets or adds user role to project
# Usage: get_or_add_user_project_role <role> <user> <project>
function get_or_add_user_project_role {
# Gets user role id
local user_role_id=$(openstack role list \
--user $2 \
--project $3 \
--column "ID" \
--column "Name" \
| grep " $1 " | get_field 1)
if [[ -z "$user_role_id" ]]; then
# Adds role to user
user_role_id=$(openstack role add \
$1 \
--user $2 \
--project $3 \
| grep " id " | get_field 2)
fi
echo $user_role_id
}
# Gets or creates service
# Usage: get_or_create_service <name> <type> <description>
function get_or_create_service {
# Gets service id
local service_id=$(
# Gets service id
openstack service show $1 -f value -c id 2>/dev/null ||
# Creates new service if not exists
openstack service create \
$2 \
--name $1 \
--description="$3" \
-f value -c id
)
echo $service_id
}
# Gets or creates endpoint
# Usage: get_or_create_endpoint <service> <region> <publicurl> <adminurl> <internalurl>
function get_or_create_endpoint {
# Gets endpoint id
local endpoint_id=$(openstack endpoint list \
--column "ID" \
--column "Region" \
--column "Service Name" \
| grep " $2 " \
| grep " $1 " | get_field 1)
if [[ -z "$endpoint_id" ]]; then
# Creates new endpoint
endpoint_id=$(openstack endpoint create \
$1 \
--region $2 \
--publicurl $3 \
--adminurl $4 \
--internalurl $5 \
| grep " id " | get_field 2)
fi
echo $endpoint_id
}
# Package Functions
# =================
# _get_package_dir
function _get_package_dir {
local pkg_dir
if is_ubuntu; then
pkg_dir=$FILES/debs
elif is_fedora; then
pkg_dir=$FILES/rpms
elif is_suse; then
pkg_dir=$FILES/rpms-suse
else
exit_distro_not_supported "list of packages"
fi
echo "$pkg_dir"
}
# Wrapper for ``apt-get`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy``
# apt_get operation package [package ...]
function apt_get {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
[[ "$OFFLINE" = "True" || -z "$@" ]] && return
local sudo="sudo"
[[ "$(id -u)" = "0" ]] && sudo="env"
$xtrace
$sudo DEBIAN_FRONTEND=noninteractive \
http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} \
no_proxy=${no_proxy:-} \
apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"
}
# get_packages() collects a list of package names of any type from the
# prerequisite files in ``files/{debs|rpms}``. The list is intended
# to be passed to a package installer such as apt or yum.
#
# Only packages required for the services in 1st argument will be
# included. Two bits of metadata are recognized in the prerequisite files:
#
# - ``# NOPRIME`` defers installation to be performed later in `stack.sh`
# - ``# dist:DISTRO`` or ``dist:DISTRO1,DISTRO2`` limits the selection
# of the package to the distros listed. The distro names are case insensitive.
function get_packages {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local services=$@
local package_dir=$(_get_package_dir)
local file_to_parse=""
local service=""
INSTALL_TESTONLY_PACKAGES=$(trueorfalse False INSTALL_TESTONLY_PACKAGES)
if [[ -z "$package_dir" ]]; then
echo "No package directory supplied"
return 1
fi
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
for service in ${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 == s-* ]]; then
if [[ ! $file_to_parse =~ swift ]]; then
file_to_parse="${file_to_parse} swift"
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 [[ ! $file_to_parse =~ neutron ]]; then
file_to_parse="${file_to_parse} neutron"
fi
elif [[ $service == ir-* ]]; then
if [[ ! $file_to_parse =~ ironic ]]; then
file_to_parse="${file_to_parse} ironic"
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 [[ $line =~ "NOPRIME" ]]; then
continue
fi
# Assume we want this package
package=${line%#*}
inst_pkg=1
# Look for # dist:xxx in comment
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
# Look for a match in the distro list
if [[ ! ${distros,,} =~ ${DISTRO,,} ]]; then
# If no match then skip this package
inst_pkg=0
fi
fi
# Look for # testonly in comment
if [[ $line =~ (.*)#.*testonly.* ]]; then
package=${BASH_REMATCH[1]}
# Are we installing test packages? (test for the default value)
if [[ $INSTALL_TESTONLY_PACKAGES = "False" ]]; then
# If not installing test packages the skip this package
inst_pkg=0
fi
fi
if [[ $inst_pkg = 1 ]]; then
echo $package
fi
done
IFS=$OIFS
done
$xtrace
}
# Distro-agnostic package installer
# Uses globals ``NO_UPDATE_REPOS``, ``REPOS_UPDATED``, ``RETRY_UPDATE``
# install_package package [package ...]
function update_package_repo {
NO_UPDATE_REPOS=${NO_UPDATE_REPOS:-False}
REPOS_UPDATED=${REPOS_UPDATED:-False}
RETRY_UPDATE=${RETRY_UPDATE:-False}
if [[ "$NO_UPDATE_REPOS" = "True" ]]; then
return 0
fi
if is_ubuntu; then
local xtrace=$(set +o | grep xtrace)
set +o xtrace
if [[ "$REPOS_UPDATED" != "True" || "$RETRY_UPDATE" = "True" ]]; then
# if there are transient errors pulling the updates, that's fine.
# It may be secondary repositories that we don't really care about.
apt_get update || /bin/true
REPOS_UPDATED=True
fi
$xtrace
fi
}
function real_install_package {
if is_ubuntu; then
apt_get install "$@"
elif is_fedora; then
yum_install "$@"
elif is_suse; then
zypper_install "$@"
else
exit_distro_not_supported "installing packages"
fi
}
# Distro-agnostic package installer
# install_package package [package ...]
function install_package {
update_package_repo
real_install_package $@ || RETRY_UPDATE=True update_package_repo && real_install_package $@
}
# Distro-agnostic function to tell if a package is installed
# is_package_installed package [package ...]
function is_package_installed {
if [[ -z "$@" ]]; then
return 1
fi
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
if [[ "$os_PACKAGE" = "deb" ]]; then
dpkg -s "$@" > /dev/null 2> /dev/null
elif [[ "$os_PACKAGE" = "rpm" ]]; then
rpm --quiet -q "$@"
else
exit_distro_not_supported "finding if a package is installed"
fi
}
# Distro-agnostic package uninstaller
# uninstall_package package [package ...]
function uninstall_package {
if is_ubuntu; then
apt_get purge "$@"
elif is_fedora; then
sudo ${YUM:-yum} remove -y "$@" ||:
elif is_suse; then
sudo zypper rm "$@"
else
exit_distro_not_supported "uninstalling packages"
fi
}
# Wrapper for ``yum`` to set proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy``, ``YUM``
# yum_install package [package ...]
function yum_install {
[[ "$OFFLINE" = "True" ]] && return
local sudo="sudo"
[[ "$(id -u)" = "0" ]] && sudo="env"
# The manual check for missing packages is because yum -y assumes
# missing packages are OK. See
# https://bugzilla.redhat.com/show_bug.cgi?id=965567
$sudo http_proxy=$http_proxy https_proxy=$https_proxy \
no_proxy=$no_proxy \
${YUM:-yum} install -y "$@" 2>&1 | \
awk '
BEGIN { fail=0 }
/No package/ { fail=1 }
{ print }
END { exit fail }' || \
die $LINENO "Missing packages detected"
# also ensure we catch a yum failure
if [[ ${PIPESTATUS[0]} != 0 ]]; then
die $LINENO "${YUM:-yum} install failure"
fi
}
# zypper wrapper to set arguments correctly
# Uses globals ``OFFLINE``, ``*_proxy``
# zypper_install package [package ...]
function zypper_install {
[[ "$OFFLINE" = "True" ]] && return
local sudo="sudo"
[[ "$(id -u)" = "0" ]] && sudo="env"
$sudo http_proxy=$http_proxy https_proxy=$https_proxy \
zypper --non-interactive install --auto-agree-with-licenses "$@"
}
# Process Functions
# =================
# _run_process() is designed to be backgrounded by run_process() to simulate a
# fork. It includes the dirty work of closing extra filehandles and preparing log
# files to produce the same logs as screen_it(). The log filename is derived
# from the service name.
# Uses globals ``CURRENT_LOG_TIME``, ``LOGDIR``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
# If an optional group is provided sg will be used to set the group of
# the command.
# _run_process service "command-line" [group]
function _run_process {
local service=$1
local command="$2"
local group=$3
# Undo logging redirections and close the extra descriptors
exec 1>&3
exec 2>&3
exec 3>&-
exec 6>&-
local real_logfile="${LOGDIR}/${service}.log.${CURRENT_LOG_TIME}"
if [[ -n ${LOGDIR} ]]; then
exec 1>&"$real_logfile" 2>&1
ln -sf "$real_logfile" ${LOGDIR}/${service}.log
if [[ -n ${SCREEN_LOGDIR} ]]; then
# Drop the backward-compat symlink
ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${service}.log
fi
# TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
export PYTHONUNBUFFERED=1
fi
# Run under ``setsid`` to force the process to become a session and group leader.
# The pid saved can be used with pkill -g to get the entire process group.
if [[ -n "$group" ]]; then
setsid sg $group "$command" & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
else
setsid $command & echo $! >$SERVICE_DIR/$SCREEN_NAME/$service.pid
fi
# Just silently exit this process
exit 0
}
# 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
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
# 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
}
# Find out if a process exists by partial name.
# is_running name
function is_running {
local name=$1
ps auxw | grep -v grep | grep ${name} > /dev/null
local exitcode=$?
# some times I really hate bash reverse binary logic
return $exitcode
}
# Run a single service under screen or directly
# If the command includes shell metachatacters (;<>*) it must be run using a shell
# If an optional group is provided sg will be used to run the
# command as that group.
# run_process service "command-line" [group]
function run_process {
local service=$1
local command="$2"
local group=$3
if is_service_enabled $service; then
if [[ "$USE_SCREEN" = "True" ]]; then
screen_process "$service" "$command" "$group"
else
# Spawn directly without screen
_run_process "$service" "$command" "$group" &
fi
fi
}
# Helper to launch a process in a named screen
# Uses globals ``CURRENT_LOG_TIME``, ```LOGDIR``, ``SCREEN_LOGDIR``, `SCREEN_NAME``,
# ``SERVICE_DIR``, ``USE_SCREEN``
# screen_process name "command-line" [group]
# Run a command in a shell in a screen window, if an optional group
# is provided, use sg to set the group of the command.
function screen_process {
local name=$1
local command="$2"
local group=$3
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
USE_SCREEN=$(trueorfalse True USE_SCREEN)
# Append the process to the screen rc file
screen_rc "$name" "$command"
screen -S $SCREEN_NAME -X screen -t $name
local real_logfile="${LOGDIR}/${name}.log.${CURRENT_LOG_TIME}"
echo "LOGDIR: $LOGDIR"
echo "SCREEN_LOGDIR: $SCREEN_LOGDIR"
echo "log: $real_logfile"
if [[ -n ${LOGDIR} ]]; then
screen -S $SCREEN_NAME -p $name -X logfile "$real_logfile"
screen -S $SCREEN_NAME -p $name -X log on
ln -sf "$real_logfile" ${LOGDIR}/${name}.log
if [[ -n ${SCREEN_LOGDIR} ]]; then
# Drop the backward-compat symlink
ln -sf "$real_logfile" ${SCREEN_LOGDIR}/screen-${1}.log
fi
fi
# 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 3
NL=`echo -ne '\015'`
# This fun command does the following:
# - the passed server command is backgrounded
# - the pid of the background process is saved in the usual place
# - the server process is brought back to the foreground
# - if the server process exits prematurely the fg command errors
# and a message is written to stdout and the process failure file
#
# The pid saved can be used in stop_process() as a process group
# id to kill off all child processes
if [[ -n "$group" ]]; then
command="sg $group '$command'"
fi
screen -S $SCREEN_NAME -p $name -X stuff "$command & echo \$! >$SERVICE_DIR/$SCREEN_NAME/${name}.pid; fg || echo \"$name failed to start\" | tee \"$SERVICE_DIR/$SCREEN_NAME/${name}.failure\"$NL"
}
# Screen rc file builder
# Uses globals ``SCREEN_NAME``, ``SCREENRC``
# 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
# Some distributions override PROMPT_COMMAND for the screen terminal type - turn that off
echo "setenv PROMPT_COMMAND /bin/true" >> $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
if [[ -n ${LOGDIR} ]]; then
echo "logfile ${LOGDIR}/${1}.log.${CURRENT_LOG_TIME}" >>$SCREENRC
echo "log on" >>$SCREENRC
fi
fi
}
# Stop a service in screen
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``, ``USE_SCREEN``
# screen_stop_service service
function screen_stop_service {
local service=$1
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
USE_SCREEN=$(trueorfalse True USE_SCREEN)
if is_service_enabled $service; then
# Clean up the screen window
screen -S $SCREEN_NAME -p $service -X kill
fi
}
# Stop a service process
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# Uses globals ``SERVICE_DIR``, ``USE_SCREEN``
# stop_process service
function stop_process {
local service=$1
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
USE_SCREEN=$(trueorfalse True USE_SCREEN)
if is_service_enabled $service; then
# Kill via pid if we have one available
if [[ -r $SERVICE_DIR/$SCREEN_NAME/$service.pid ]]; then
pkill -g $(cat $SERVICE_DIR/$SCREEN_NAME/$service.pid)
rm $SERVICE_DIR/$SCREEN_NAME/$service.pid
fi
if [[ "$USE_SCREEN" = "True" ]]; then
# Clean up the screen window
screen_stop_service $service
fi
fi
}
# Helper to get the status of each running service
# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``
# service_check
function service_check {
local service
local failures
SCREEN_NAME=${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
# make this -o errexit safe
failures=`ls "$SERVICE_DIR/$SCREEN_NAME"/*.failure 2>/dev/null || /bin/true`
for service in $failures; do
service=`basename $service`
service=${service%.failure}
echo "Error: Service $service is not running"
done
if [ -n "$failures" ]; then
die $LINENO "More details about the above errors can be found with screen, with ./rejoin-stack.sh"
fi
}
# Tail a log file in a screen if USE_SCREEN is true.
function tail_log {
local name=$1
local logfile=$2
USE_SCREEN=$(trueorfalse True USE_SCREEN)
if [[ "$USE_SCREEN" = "True" ]]; then
screen_process "$name" "sudo tail -f $logfile"
fi
}
# Deprecated Functions
# --------------------
# _old_run_process() is designed to be backgrounded by old_run_process() to simulate a
# fork. It includes the dirty work of closing extra filehandles and preparing log
# files to produce the same logs as screen_it(). The log filename is derived
# from the service name and global-and-now-misnamed ``SCREEN_LOGDIR``
# Uses globals ``CURRENT_LOG_TIME``, ``SCREEN_LOGDIR``, ``SCREEN_NAME``, ``SERVICE_DIR``
# _old_run_process service "command-line"
function _old_run_process {
local service=$1
local command="$2"
# Undo logging redirections and close the extra descriptors
exec 1>&3
exec 2>&3
exec 3>&-
exec 6>&-
if [[ -n ${SCREEN_LOGDIR} ]]; then
exec 1>&${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} 2>&1
ln -sf ${SCREEN_LOGDIR}/screen-${1}.log.${CURRENT_LOG_TIME} ${SCREEN_LOGDIR}/screen-${1}.log
# TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
export PYTHONUNBUFFERED=1
fi
exec /bin/bash -c "$command"
die "$service exec failure: $command"
}
# old_run_process() launches a child process that closes all file descriptors and
# then exec's the passed in command. This is meant to duplicate the semantics
# of screen_it() without screen. PIDs are written to
# ``$SERVICE_DIR/$SCREEN_NAME/$service.pid`` by the spawned child process.
# old_run_process service "command-line"
function old_run_process {
local service=$1
local command="$2"
# Spawn the child process
_old_run_process "$service" "$command" &
echo $!
}
# Compatibility for existing start_XXXX() functions
# Uses global ``USE_SCREEN``
# screen_it service "command-line"
function screen_it {
if is_service_enabled $1; then
# Append the service to the screen rc file
screen_rc "$1" "$2"
if [[ "$USE_SCREEN" = "True" ]]; then
screen_process "$1" "$2"
else
# Spawn directly without screen
old_run_process "$1" "$2" >$SERVICE_DIR/$SCREEN_NAME/$1.pid
fi
fi
}
# Compatibility for existing stop_XXXX() functions
# Stop a service in screen
# If a PID is available use it, kill the whole process group via TERM
# If screen is being used kill the screen window; this will catch processes
# that did not leave a PID behind
# screen_stop service
function screen_stop {
# Clean up the screen window
stop_process $1
}
# Plugin Functions
# =================
DEVSTACK_PLUGINS=${DEVSTACK_PLUGINS:-""}
# enable_plugin <name> <url> [branch]
#
# ``name`` is an arbitrary name - (aka: glusterfs, nova-docker, zaqar)
# ``url`` is a git url
# ``branch`` is a gitref. If it's not set, defaults to master
function enable_plugin {
local name=$1
local url=$2
local branch=${3:-master}
DEVSTACK_PLUGINS+=",$name"
GITREPO[$name]=$url
GITDIR[$name]=$DEST/$name
GITBRANCH[$name]=$branch
}
# fetch_plugins
#
# clones all plugins
function fetch_plugins {
local plugins="${DEVSTACK_PLUGINS}"
local plugin
# short circuit if nothing to do
if [[ -z $plugins ]]; then
return
fi
echo "Fetching devstack plugins"
for plugin in ${plugins//,/ }; do
git_clone_by_name $plugin
done
}
# load_plugin_settings
#
# Load settings from plugins in the order that they were registered
function load_plugin_settings {
local plugins="${DEVSTACK_PLUGINS}"
local plugin
# short circuit if nothing to do
if [[ -z $plugins ]]; then
return
fi
echo "Loading plugin settings"
for plugin in ${plugins//,/ }; do
local dir=${GITDIR[$plugin]}
# source any known settings
if [[ -f $dir/devstack/settings ]]; then
source $dir/devstack/settings
fi
done
}
# run_plugins
#
# Run the devstack/plugin.sh in all the plugin directories. These are
# run in registration order.
function run_plugins {
local mode=$1
local phase=$2
local plugins="${DEVSTACK_PLUGINS}"
local plugin
for plugin in ${plugins//,/ }; do
local dir=${GITDIR[$plugin]}
if [[ -f $dir/devstack/plugin.sh ]]; then
source $dir/devstack/plugin.sh $mode $phase
fi
done
}
function run_phase {
local mode=$1
local phase=$2
if [[ -d $TOP_DIR/extras.d ]]; then
for i in $TOP_DIR/extras.d/*.sh; do
[[ -r $i ]] && source $i $mode $phase
done
fi
# the source phase corresponds to settings loading in plugins
if [[ "$mode" == "source" ]]; then
load_plugin_settings
else
run_plugins $mode $phase
fi
}
# Service Functions
# =================
# remove extra commas from the input string (i.e. ``ENABLED_SERVICES``)
# _cleanup_service_list service-list
function _cleanup_service_list {
echo "$1" | sed -e '
s/,,/,/g;
s/^,//;
s/,$//
'
}
# 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")
}
# 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 neutron 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 "$tmpsvcs")
}
# enable_service() adds the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are not already present.
#
# For example:
# enable_service qpid
#
# This function does not know about the special cases
# for nova, glance, and neutron built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# enable_service service [service ...]
function enable_service {
local tmpsvcs="${ENABLED_SERVICES}"
local service
for service in $@; do
if ! is_service_enabled $service; then
tmpsvcs+=",$service"
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
disable_negated_services
}
# 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-**
# **neutron** returns true if any service enabled start with **q-**
# **swift** returns true if any service enabled start with **s-**
# **trove** returns true if any service enabled start with **tr-**
# For backward compatibility if we have **swift** in ENABLED_SERVICES all the
# **s-** services will be enabled. This will be deprecated in the future.
#
# Cells within nova is enabled if **n-cell** is in ``ENABLED_SERVICES``.
# We also need to make sure to treat **n-cell-region** and **n-cell-child**
# as enabled in this case.
#
# Uses global ``ENABLED_SERVICES``
# is_service_enabled service [service ...]
function is_service_enabled {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local enabled=1
local services=$@
local service
for service in ${services}; do
[[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && enabled=0
# Look for top-level 'enabled' function for this service
if type is_${service}_enabled >/dev/null 2>&1; then
# A function exists for this service, use it
is_${service}_enabled
enabled=$?
fi
# TODO(dtroyer): Remove these legacy special-cases after the is_XXX_enabled()
# are implemented
[[ ${service} == n-cell-* && ${ENABLED_SERVICES} =~ "n-cell" ]] && enabled=0
[[ ${service} == n-cpu-* && ${ENABLED_SERVICES} =~ "n-cpu" ]] && enabled=0
[[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && enabled=0
[[ ${service} == "cinder" && ${ENABLED_SERVICES} =~ "c-" ]] && enabled=0
[[ ${service} == "ceilometer" && ${ENABLED_SERVICES} =~ "ceilometer-" ]] && enabled=0
[[ ${service} == "glance" && ${ENABLED_SERVICES} =~ "g-" ]] && enabled=0
[[ ${service} == "ironic" && ${ENABLED_SERVICES} =~ "ir-" ]] && enabled=0
[[ ${service} == "neutron" && ${ENABLED_SERVICES} =~ "q-" ]] && enabled=0
[[ ${service} == "trove" && ${ENABLED_SERVICES} =~ "tr-" ]] && enabled=0
[[ ${service} == "swift" && ${ENABLED_SERVICES} =~ "s-" ]] && enabled=0
[[ ${service} == s-* && ${ENABLED_SERVICES} =~ "swift" ]] && enabled=0
done
$xtrace
return $enabled
}
# Toggle enable/disable_service for services that must run exclusive of each other
# $1 The name of a variable containing a space-separated list of services
# $2 The name of a variable in which to store the enabled service's name
# $3 The name of the service to enable
function use_exclusive_service {
local options=${!1}
local selection=$3
local out=$2
[ -z $selection ] || [[ ! "$options" =~ "$selection" ]] && return 1
local opt
for opt in $options;do
[[ "$opt" = "$selection" ]] && enable_service $opt || disable_service $opt
done
eval "$out=$selection"
return 0
}
# System Functions
# ================
# Only run the command if the target file (the last arg) is not on an
# NFS filesystem.
function _safe_permission_operation {
local xtrace=$(set +o | grep xtrace)
set +o xtrace
local args=( $@ )
local last
local sudo_cmd
local dir_to_check
let last="${#args[*]} - 1"
local dir_to_check=${args[$last]}
if [ ! -d "$dir_to_check" ]; then
dir_to_check=`dirname "$dir_to_check"`
fi
if is_nfs_directory "$dir_to_check" ; then
$xtrace
return 0
fi
if [[ $TRACK_DEPENDS = True ]]; then
sudo_cmd="env"
else
sudo_cmd="sudo"
fi
$xtrace
$sudo_cmd $@
}
# Exit 0 if address is in network or 1 if address is not in network
# ip-range is in CIDR notation: 1.2.3.4/20
# address_in_net ip-address ip-range
function address_in_net {
local ip=$1
local range=$2
local masklen=${range#*/}
local network=$(maskip ${range%/*} $(cidr2netmask $masklen))
local subnet=$(maskip $ip $(cidr2netmask $masklen))
[[ $network == $subnet ]]
}
# Add a user to a group.
# add_user_to_group user group
function add_user_to_group {
local user=$1
local group=$2
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
# SLE11 and openSUSE 12.2 don't have the usual usermod
if ! is_suse || [[ "$os_VENDOR" = "openSUSE" && "$os_RELEASE" != "12.2" ]]; then
sudo usermod -a -G "$group" "$user"
else
sudo usermod -A "$group" "$user"
fi
}
# Convert CIDR notation to a IPv4 netmask
# cidr2netmask cidr-bits
function cidr2netmask {
local maskpat="255 255 255 255"
local maskdgt="254 252 248 240 224 192 128"
set -- ${maskpat:0:$(( ($1 / 8) * 4 ))}${maskdgt:$(( (7 - ($1 % 8)) * 4 )):3}
echo ${1-0}.${2-0}.${3-0}.${4-0}
}
# Gracefully cp only if source file/dir exists
# cp_it source destination
function cp_it {
if [ -e $1 ] || [ -d $1 ]; then
cp -pRL $1 $2
fi
}
# HTTP and HTTPS proxy servers are supported via the usual environment variables [1]
# ``http_proxy``, ``https_proxy`` and ``no_proxy``. They can be set in
# ``localrc`` or on the command line if necessary::
#
# [1] http://www.w3.org/Daemon/User/Proxies/ProxyClients.html
#
# http_proxy=http://proxy.example.com:3128/ no_proxy=repo.example.net ./stack.sh
function export_proxy_variables {
if isset http_proxy ; then
export http_proxy=$http_proxy
fi
if isset https_proxy ; then
export https_proxy=$https_proxy
fi
if isset no_proxy ; then
export no_proxy=$no_proxy
fi
}
# Returns true if the directory is on a filesystem mounted via NFS.
function is_nfs_directory {
local mount_type=`stat -f -L -c %T $1`
test "$mount_type" == "nfs"
}
# Return the network portion of the given IP address using netmask
# netmask is in the traditional dotted-quad format
# maskip ip-address netmask
function maskip {
local ip=$1
local mask=$2
local l="${ip%.*}"; local r="${ip#*.}"; local n="${mask%.*}"; local m="${mask#*.}"
local subnet=$((${ip%%.*}&${mask%%.*})).$((${r%%.*}&${m%%.*})).$((${l##*.}&${n##*.})).$((${ip##*.}&${mask##*.}))
echo $subnet
}
# 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
}
# Only change permissions of a file or directory if it is not on an
# NFS filesystem.
function safe_chmod {
_safe_permission_operation chmod $@
}
# Only change ownership of a file or directory if it is not on an NFS
# filesystem.
function safe_chown {
_safe_permission_operation chown $@
}
# 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
}
# Restore xtrace
$XTRACE
# Local variables:
# mode: shell-script
# End:
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