# 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 line number and "message" then exits # die $LINENO "message" function die() { local exitcode=$? if [ $exitcode == 0 ]; then exitcode=1 fi set +o xtrace local msg="[ERROR] $0:$1 $2" echo $msg 1>&2; if [[ -n ${SCREEN_LOGDIR} ]]; then echo $msg >> "${SCREEN_LOGDIR}/error.log" fi 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 $LINENO env-var "message" function die_if_not_set() { ( local exitcode=$? set +o xtrace local evar=$2; shift if ! is_set $evar || [ $exitcode != 0 ]; then die $@ fi ) } # HTTP and HTTPS proxy servers are supported via the usual environment variables [1] # ``http_proxy``, ``https_proxy`` and ``no_proxy``. They can be set in # ``localrc`` or on the command line if necessary:: # # [1] http://www.w3.org/Daemon/User/Proxies/ProxyClients.html # # http_proxy=http://proxy.example.com:3128/ no_proxy=repo.example.net ./stack.sh function export_proxy_variables() { if [[ -n "$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 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="" host_ips=`LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/"); print parts[1]}'` 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 $host_ip } function _get_package_dir() { local pkg_dir if is_ubuntu; then pkg_dir=$FILES/apts 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" } # 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 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 services=$1 local package_dir=$(_get_package_dir) 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 ${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 [[ ! $file_to_parse =~ quantum ]]; then file_to_parse="${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,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) # 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${os_UPDATE}" fi elif [[ "$os_VENDOR" =~ (Red Hat) || "$os_VENDOR" =~ (CentOS) ]]; then # Drop the . release as we assume it's compatible DISTRO="rhel${os_RELEASE::1}" 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 die $LINENO "Support for $DISTRO is incomplete: no support for $@" else die $LINENO "Support for $DISTRO is incomplete." fi } # git clone only if directory doesn't exist already. Since ``DEST`` might not # be owned by the installation user, we create the directory and change the # ownership to the proper user. # Set global RECLONE=yes to simulate a clone when dest-dir exists # Set global ERROR_ON_CLONE=True to abort execution with an error if the git repo # does not exist (default is False, meaning the repo will be cloned). # Uses global ``OFFLINE`` # git_clone remote dest-dir branch function git_clone { [[ "$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 } # Get a multiple line option from an INI file # iniget_multiline config-file section option function iniget_multiline() { local file=$1 local section=$2 local option=$3 local values values=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { s/^$option[ \t]*=[ \t]*//gp; }" "$file") echo ${values} } # Set a multiple line option in an INI file # iniset_multiline config-file section option value1 value2 valu3 ... function iniset_multiline() { 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 } # Append a new option in an ini file without replacing the old value # iniadd config-file section option value1 value2 value3 ... function iniadd() { local file=$1 local section=$2 local option=$3 shift 3 local values="$(iniget_multiline $file $section $option) $@" iniset_multiline $file $section $option $values } # is_service_enabled() checks if the service(s) specified as arguments are # enabled by the user in ``ENABLED_SERVICES``. # # Multiple services specified as arguments are ``OR``'ed together; the test # is a short-circuit boolean, i.e it returns on the first match. # # There are special cases for some 'catch-all' services:: # **nova** returns true if any service enabled start with **n-** # **cinder** returns true if any service enabled start with **c-** # **ceilometer** returns true if any service enabled start with **ceilometer** # **glance** returns true if any service enabled start with **g-** # **quantum** returns true if any service enabled start with **q-** # **swift** returns true if any service enabled start with **s-** # For backward compatibility if we have **swift** in ENABLED_SERVICES all the # **s-** services will be enabled. This will be deprecated in the future. # # Uses global ``ENABLED_SERVICES`` # is_service_enabled service [service ...] function is_service_enabled() { services=$@ 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 [[ ${service} == "swift" && ${ENABLED_SERVICES} =~ "s-" ]] && return 0 [[ ${service} == s-* && ${ENABLED_SERVICES} =~ "swift" ]] && 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 package uninstaller # uninstall_package package [package ...] function uninstall_package() { if is_ubuntu; then apt_get purge "$@" elif is_fedora; then sudo yum remove -y "$@" elif is_suse; then sudo rpm -e "$@" else exit_distro_not_supported "uninstalling packages" fi } # Distro-agnostic function to tell if a package is installed # is_package_installed package [package ...] function is_package_installed() { if [[ -z "$@" ]]; 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 } # _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 and global-and-now-misnamed SCREEN_LOGDIR # _run_process service "command-line" function _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-${1}.${CURRENT_LOG_TIME}.log 2>&1 ln -sf ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${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" } # 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 # run_process service "command-line" function run_process() { local service=$1 local command="$2" # Spawn the child process _run_process "$service" "$command" & echo $! } # Helper to launch a service in a named screen # screen_it service "command-line" function screen_it { SCREEN_NAME=${SCREEN_NAME:-stack} SERVICE_DIR=${SERVICE_DIR:-${DEST}/status} USE_SCREEN=$(trueorfalse True $USE_SCREEN) if is_service_enabled $1; then # Append the service to the screen rc file screen_rc "$1" "$2" if [[ "$USE_SCREEN" = "True" ]]; then 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 # 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 # Spawn directly without screen run_process "$1" "$2" >$SERVICE_DIR/$SCREEN_NAME/$service.pid 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 # XenServer-ovf-format images are provided as .vhd.tgz as well # and should not be decompressed prior to loading if [[ "$image_url" =~ '.vhd.tgz' ]]; then IMAGE="$FILES/${IMAGE_FNAME}" IMAGE_NAME="${IMAGE_FNAME%.vhd.tgz}" glance --os-auth-token $token --os-image-url http://$GLANCE_HOSTPORT image-create --name "$IMAGE_NAME" --is-public=True --container-format=ovf --disk-format=vhd < "${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 "$IMAGE" ".qcow2") DISK_FORMAT=qcow2 CONTAINER_FORMAT=bare ;; *.iso) IMAGE="$FILES/${IMAGE_FNAME}" IMAGE_NAME=$(basename "$IMAGE" ".iso") DISK_FORMAT=iso 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 # 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 } # 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 out=$2 [ -z $selection ] || [[ ! "$options" =~ "$selection" ]] && return 1 for opt in $options;do [[ "$opt" = "$selection" ]] && enable_service $opt || disable_service $opt done eval "$out=$selection" return 0 } # 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 ! http_proxy= https_proxy= curl -s $url >/dev/null; do sleep 1; done" } # Wrapper for ``yum`` to set proxy environment variables # Uses globals ``OFFLINE``, ``*_proxy` # yum_install package [package ...] function yum_install() { [[ "$OFFLINE" = "True" ]] && return local sudo="sudo" [[ "$(id -u)" = "0" ]] && sudo="env" $sudo http_proxy=$http_proxy https_proxy=$https_proxy \ no_proxy=$no_proxy \ yum install -y "$@" } # ping check # Uses globals ``ENABLED_SERVICES`` function ping_check() { if is_service_enabled quantum; then _ping_check_quantum "$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 sleep $boot_timeout return fi if [[ "$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 exit 1 fi } # ssh check function ssh_check() { if is_service_enabled quantum; then _ssh_check_quantum "$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 $LINENO "server didn't become ssh-able!" fi } # zypper wrapper to set arguments correctly # zypper_install package [package ...] function zypper_install() { [[ "$OFFLINE" = "True" ]] && return local sudo="sudo" [[ "$(id -u)" = "0" ]] && sudo="env" $sudo http_proxy=$http_proxy https_proxy=$https_proxy \ zypper --non-interactive install --auto-agree-with-licenses "$@" } # 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 } # Get the path to the direcotry where python executables are installed. # get_python_exec_prefix function get_python_exec_prefix() { if is_fedora; then echo "/usr/bin" else echo "/usr/local/bin" 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" } # Get the path to the pip command. # get_pip_command function get_pip_command() { if is_fedora; then which pip-python else which pip fi } # Restore xtrace $XTRACE # Local variables: # mode: shell-script # End: