Christian Berendt bb1b24c25a Migrate existing Devstack integration into a Devstack plugin
This patch will not remove the existing Devstack integration
in contrib/devstack.

Change-Id: I23ef00bb136e92abc5e69a9bbe1093cad9d2a362
Closes-bug: #1504214
2015-11-27 16:38:12 +01:00

148 lines
4.0 KiB
Plaintext

# Configure the powerdns backend
# Enable with:
# DESIGNATE_BACKEND_DRIVER=powerdns
# Dependencies:
# ``functions`` file
# ``designate`` configuration
# install_designate_backend - install any external requirements
# configure_designate_backend - make configuration changes, including those to other services
# init_designate_backend - initialize databases, etc.
# start_designate_backend - start any external services
# stop_designate_backend - stop any external services
# cleanup_designate_backend - remove transient data and cache
# Save trace setting
DP_PDNS_XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Defaults
# --------
if is_fedora; then
POWERDNS_CFG_DIR=/etc/pdns
else
POWERDNS_CFG_DIR=/etc/powerdns
fi
# Entry Points
# ------------
# install_designate_backend - install any external requirements
function install_designate_backend {
if is_ubuntu; then
PDNS=pdns-server
elif is_fedora || is_suse; then
PDNS=pdns
else
PDNS=pdns-server
fi
if is_service_enabled mysql; then
PDNS+=" pdns-backend-mysql"
elif is_service_enabled postgresql; then
PDNS+=" pdns-backend-pgsql"
else
die $LINENO "PowerDNS backend only supports MySQL / PostgreSQL"
fi
install_package $PDNS
sudo rm -rf $POWERDNS_CFG_DIR/pdns.d
}
# configure_designate_backend - make configuration changes, including those to other services
function configure_designate_backend {
iniset $DESIGNATE_CONF pool_target:$DESIGNATE_TARGET_ID type powerdns
iniset $DESIGNATE_CONF pool_target:$DESIGNATE_TARGET_ID masters $DESIGNATE_SERVICE_HOST:$DESIGNATE_SERVICE_PORT_MDNS
iniset $DESIGNATE_CONF pool_target:$DESIGNATE_TARGET_ID options "connection: `database_connection_url designate_pdns`, host: $DESIGNATE_SERVICE_HOST, port: $DESIGNATE_SERVICE_PORT_DNS"
# DevStack Managed PDNS NameServer
local nameserver_id=`uuidgen`
iniset $DESIGNATE_CONF pool:$DESIGNATE_POOL_ID nameservers $nameserver_id
iniset $DESIGNATE_CONF pool_nameserver:$nameserver_id host $DESIGNATE_SERVICE_HOST
iniset $DESIGNATE_CONF pool_nameserver:$nameserver_id port $DESIGNATE_SERVICE_PORT_DNS
sudo tee $POWERDNS_CFG_DIR/pdns.conf > /dev/null <<EOF
# General Config
setgid=pdns
setuid=pdns
config-dir=$POWERDNS_CFG_DIR
socket-dir=/var/run
guardian=yes
daemon=yes
disable-axfr=no
local-address=$DESIGNATE_SERVICE_HOST
local-port=$DESIGNATE_SERVICE_PORT_DNS
master=no
slave=yes
cache-ttl=0
query-cache-ttl=0
negquery-cache-ttl=0
out-of-zone-additional-processing=no
EOF
if is_service_enabled mysql; then
sudo tee -a $POWERDNS_CFG_DIR/pdns.conf > /dev/null <<EOF
# Launch gmysql backend
launch=gmysql
# gmysql parameters
gmysql-host=$DATABASE_HOST
gmysql-user=$DATABASE_USER
gmysql-password=$DATABASE_PASSWORD
gmysql-dbname=designate_pdns
gmysql-dnssec=yes
EOF
elif is_service_enabled postgresql; then
sudo tee -a $POWERDNS_CFG_DIR/pdns.conf > /dev/null <<EOF
# Launch gpgsql backend
launch=gpgsql
# gmysql parameters
gpgsql-host=$DATABASE_HOST
gpgsql-user=$DATABASE_USER
gpgsql-password=$DATABASE_PASSWORD
gpgsql-dbname=designate_pdns
gpgsql-dnssec=yes
EOF
else
die $LINENO "PowerDNS backend only supports MySQL / PostgreSQL"
fi
restart_service pdns
}
# init_designate_backend - initialize databases, etc.
function init_designate_backend {
# Stop pdns so that the migration succeeds, if not you get a error
# that the schema is still in use.
if is_service_enabled postgresql; then
stop_designate_backend
fi
# (Re)create designate_pdns database
recreate_database designate_pdns utf8
# Init and migrate designate_pdns database
designate-manage powerdns sync $DESIGNATE_TARGET_ID
}
# start_designate_backend - start any external services
function start_designate_backend {
start_service pdns
}
# stop_designate_backend - stop any external services
function stop_designate_backend {
stop_service pdns
}
# cleanup_designate_backend - remove transient data and cache
function cleanup_designate_backend {
:
}
# Restore xtrace
$DP_PDNS_XTRACE