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- Committer: Adam Gandelman
- Date: 2013-01-07 23:25:53 UTC
- mfrom: (15.1.13 swift-storage)
- Revision ID: adamg@canonical.com-20130107232553-i0k0u397vhe6ke1d
Merge swift-storage rewrite work.
- files added:
- README.md
- hooks/lib
- hooks/swift-storage-relation-changed
- hooks/swift-storage-relation-joined
- files removed:
- hooks/swift-proxy-relation-changed
- hooks/swift-proxy-relation-joined
- files modified:
- config.yaml
added
removed
hooks/lib/openstack-common
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#!/bin/bash -e
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# Common utility functions used across all OpenStack charms.
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error_out() {
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juju-log "$CHARM ERROR: $@"
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exit 1
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}
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function service_ctl_status {
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# Return 0 if a service is running, 1 otherwise.
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local svc="$1"
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local status=$(service $svc status | cut -d/ -f1 | awk '{ print $2 }')
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case $status in
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"start") return 0 ;;
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"stop") return 1 ;;
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*) error_out "Unexpected status of service $svc: $status" ;;
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esac
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}
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function service_ctl {
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# control a specific service, or all (as defined by $SERVICES)
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if [[ $1 == "all" ]] ; then
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ctl="$SERVICES"
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else
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ctl="$1"
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fi
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action="$2"
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if [[ -z "$ctl" ]] || [[ -z "$action" ]] ; then
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error_out "ERROR service_ctl: Not enough arguments"
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fi
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for i in $ctl ; do
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case $action in
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"start")
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service_ctl_status $i || service $i start ;;
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"stop")
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service_ctl_status $i && service $i stop || return 0 ;;
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"restart")
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service_ctl_status $i && service $i restart || service $i start ;;
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esac
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if [[ $? != 0 ]] ; then
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juju-log "$CHARM: service_ctl ERROR - Service $i failed to $action"
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fi
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done
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}
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function configure_install_source {
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# Setup and configure installation source based on a config flag.
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local src="$1"
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# Default to installing from the main Ubuntu archive.
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[[ $src == "distro" ]] || [[ -z "$src" ]] && return 0
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. /etc/lsb-release
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# standard 'ppa:someppa/name' format.
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if [[ "${src:0:4}" == "ppa:" ]] ; then
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juju-log "$CHARM: Configuring installation from custom src ($src)"
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add-apt-repository -y "$src" || error_out "Could not configure PPA access."
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return 0
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fi
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# standard 'deb http://url/ubuntu main' entries. gpg key ids must
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# be appended to the end of url after a |, ie:
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# 'deb http://url/ubuntu main|$GPGKEYID'
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if [[ "${src:0:3}" == "deb" ]] ; then
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juju-log "$CHARM: Configuring installation from custom src URL ($src)"
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if echo "$src" | grep -q "|" ; then
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# gpg key id tagged to end of url folloed by a |
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url=$(echo $src | cut -d'|' -f1)
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key=$(echo $src | cut -d'|' -f2)
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juju-log "$CHARM: Importing repository key: $key"
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apt-key adv --keyserver keyserver.ubuntu.com --recv-keys "$key" || \
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juju-log "$CHARM WARN: Could not import key from keyserver: $key"
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else
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juju-log "$CHARM No repository key specified."
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url="$src"
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fi
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echo "$url" > /etc/apt/sources.list.d/juju_deb.list
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return 0
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fi
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# Cloud Archive
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if [[ "${src:0:6}" == "cloud:" ]] ; then
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local archive_key="5EDB1B62EC4926EA"
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local rel=$(echo $src | cut -d: -f2)
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local u_rel=$(echo $rel | cut -d- -f1)
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local ca_rel=$(echo $rel | cut -d- -f2)
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[[ "$u_rel" != "$DISTRIB_CODENAME" ]] &&
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error_out "Cannot install from Cloud Archive pocket $src " \
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"on this Ubuntu version ($DISTRIB_CODENAME)!"
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# CA staging repos are standard PPAs.
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if echo $ca_rel | grep -q "staging" ; then
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ca_rel=$(echo $ca_rel | sed -e 's,/,-,g')
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add-apt-repository -y ppa:ubuntu-cloud-archive/$ca_rel
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return 0
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fi
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# the others are LP-external deb repos.
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case "$ca_rel" in
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"folsom"|"folsom/updates") pocket="precise-updates/folsom" ;;
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"folsom/proposed") pocket="precise-proposed/folsom" ;;
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*) error_out "Invalid Cloud Archive repo specified: $src"
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esac
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entry="deb http://ubuntu-cloud.archive.canonical.com/ubuntu $pocket main"
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echo "$entry" \
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>/etc/apt/sources.list.d/ubuntu-cloud-archive-$DISTRIB_CODENAME.list
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apt-key adv --keyserver keyserver.ubuntu.com --recv-keys $archive_key
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return 0
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fi
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error_out "Invalid installation source specified in config: $src"
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}
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get_os_codename_install_source() {
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# derive the openstack release provided by a supported installation source.
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local rel="$1"
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local codename="unknown"
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. /etc/lsb-release
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# map ubuntu releases to the openstack version shipped with it.
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if [[ "$rel" == "distro" ]] ; then
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case "$DISTRIB_CODENAME" in
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"oneiric") codename="diablo" ;;
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"precise") codename="essex" ;;
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"quantal") codename="folsom" ;;
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"raring") codename="grizzly" ;;
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esac
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fi
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# derive version from cloud archive strings.
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if [[ "${rel:0:6}" == "cloud:" ]] ; then
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rel=$(echo $rel | cut -d: -f2)
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local u_rel=$(echo $rel | cut -d- -f1)
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local ca_rel=$(echo $rel | cut -d- -f2)
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if [[ "$u_rel" == "$DISTRIB_CODENAME" ]] ; then
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case "$ca_rel" in
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"folsom"|"folsom/updates"|"folsom/proposed"|"folsom/staging")
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codename="folsom" ;;
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"grizzly"|"grizzly/updates"|"grizzly/proposed"|"grizzly/staging")
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codename="grizzly" ;;
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esac
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fi
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fi
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# have a guess based on the deb string provided
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if [[ "${rel:0:3}" == "deb" ]]; then
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CODENAMES="diablo essex folsom grizzly"
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for cname in $CODENAMES; do
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if echo $rel | grep -q $cname; then
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codename=$cname
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fi
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done
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fi
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echo $codename
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}
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get_os_codename_package() {
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local pkg_vers=$(dpkg -l | grep "$1" | awk '{ print $3 }') || echo "none"
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case "${pkg_vers:0:6}" in
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"2011.2") echo "diablo" ;;
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"2012.1") echo "essex" ;;
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"2012.2") echo "folsom" ;;
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"2013.1") echo "grizzly" ;;
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esac
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}
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get_os_version_codename() {
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case "$1" in
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"diablo") echo "2011.2" ;;
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"essex") echo "2012.1" ;;
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"folsom") echo "2012.2" ;;
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"grizzly") echo "2012.3" ;;
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esac
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}
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get_ip() {
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dpkg -l | grep -q python-dnspython || {
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apt-get -y install python-dnspython 2>&1 > /dev/null
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}
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hostname=$1
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python -c "
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import dns.resolver
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import socket
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try:
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# Test to see if already an IPv4 address
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socket.inet_aton('$hostname')
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print '$hostname'
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except socket.error:
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try:
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answers = dns.resolver.query('$hostname', 'A')
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if answers:
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print answers[0].address
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except dns.resolver.NXDOMAIN:
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pass
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"
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}
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# Common storage routines used by cinder, nova-volume and swift-storage.
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clean_storage() {
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# if configured to overwrite existing storage, we unmount the block-dev
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# if mounted and clear any previous pv signatures
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local block_dev="$1"
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juju-log "Cleaining storage '$block_dev'"
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if grep -q "^$block_dev" /proc/mounts ; then
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mp=$(grep "^$block_dev" /proc/mounts | awk '{ print $2 }')
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juju-log "Unmounting $block_dev from $mp"
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umount "$mp" || error_out "ERROR: Could not unmount storage from $mp"
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fi
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if pvdisplay "$block_dev" >/dev/null 2>&1 ; then
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juju-log "Removing existing LVM PV signatures from $block_dev"
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# deactivate any volgroups that may be built on this dev
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vg=$(pvdisplay $block_dev | grep "VG Name" | awk '{ print $3 }')
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if [[ -n "$vg" ]] ; then
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juju-log "Deactivating existing volume group: $vg"
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vgchange -an "$vg" ||
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error_out "ERROR: Could not deactivate volgroup $vg. Is it in use?"
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fi
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echo "yes" | pvremove -ff "$block_dev" ||
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error_out "Could not pvremove $block_dev"
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else
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juju-log "Zapping disk of all GPT and MBR structures"
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sgdisk --zap-all $block_dev ||
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error_out "Unable to zap $block_dev"
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fi
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}
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function get_block_device() {
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# given a string, return full path to the block device for that
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# if input is not a block device, find a loopback device
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local input="$1"
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case "$input" in
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/dev/*) [[ ! -b "$input" ]] && error_out "$input does not exist."
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echo "$input"; return 0;;
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/*) :;;
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*) [[ ! -b "/dev/$input" ]] && error_out "/dev/$input does not exist."
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echo "/dev/$input"; return 0;;
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esac
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# this represents a file
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# support "/path/to/file|5G"
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local fpath size oifs="$IFS"
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if [ "${input#*|}" != "${input}" ]; then
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size=${input##*|}
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fpath=${input%|*}
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else
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fpath=${input}
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size=5G
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fi
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## loop devices are not namespaced. This is bad for containers.
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## it means that the output of 'losetup' may have the given $fpath
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## in it, but that may not represent this containers $fpath, but
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## another containers. To address that, we really need to
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## allow some uniq container-id to be expanded within path.
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## TODO: find a unique container-id that will be consistent for
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## this container throughout its lifetime and expand it
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## in the fpath.
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# fpath=${fpath//%{id}/$THAT_ID}
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local found=""
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# parse through 'losetup -a' output, looking for this file
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# output is expected to look like:
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# /dev/loop0: [0807]:961814 (/tmp/my.img)
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found=$(losetup -a |
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awk 'BEGIN { found=0; }
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$3 == f { sub(/:$/,"",$1); print $1; found=found+1; }
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END { if( found == 0 || found == 1 ) { exit(0); }; exit(1); }' \
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f="($fpath)")
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if [ $? -ne 0 ]; then
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echo "multiple devices found for $fpath: $found" 1>&2
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return 1;
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fi
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[ -n "$found" -a -b "$found" ] && { echo "$found"; return 1; }
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if [ -n "$found" ]; then
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echo "confused, $found is not a block device for $fpath";
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return 1;
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fi
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# no existing device was found, create one
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mkdir -p "${fpath%/*}"
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truncate --size "$size" "$fpath" ||
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{ echo "failed to create $fpath of size $size"; return 1; }
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found=$(losetup --find --show "$fpath") ||
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{ echo "failed to setup loop device for $fpath" 1>&2; return 1; }
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echo "$found"
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return 0
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}
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