137 lines
4.0 KiB
Bash
137 lines
4.0 KiB
Bash
#!/bin/bash
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#
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# lib/etcd3
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#
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# Functions to control the installation and configuration of etcd 3.x
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# that provides a key-value store (and possibly other functions).
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# Dependencies:
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#
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# - ``functions`` file
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# ``stack.sh`` calls the entry points in this order:
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#
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# - start_etcd3
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# - stop_etcd3
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# - cleanup_etcd3
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# Save trace setting
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_XTRACE_ETCD3=$(set +o | grep xtrace)
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set +o xtrace
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# Defaults
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# --------
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# Set up default values for etcd
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ETCD_DATA_DIR="$DATA_DIR/etcd"
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ETCD_SYSTEMD_SERVICE="devstack@etcd.service"
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ETCD_BIN_DIR="$DEST/bin"
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# Option below will mount ETCD_DATA_DIR as ramdisk, which is useful to run
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# etcd-heavy services in the gate VM's, e.g. Kubernetes.
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ETCD_USE_RAMDISK=$(trueorfalse True ETCD_USE_RAMDISK)
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ETCD_RAMDISK_MB=${ETCD_RAMDISK_MB:-512}
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if is_ubuntu ; then
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UBUNTU_RELEASE_BASE_NUM=`lsb_release -r | awk '{print $2}' | cut -d '.' -f 1`
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fi
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# start_etcd3() - Starts to run the etcd process
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function start_etcd3 {
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local cmd="$ETCD_BIN_DIR/etcd"
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cmd+=" --name $HOSTNAME --data-dir $ETCD_DATA_DIR"
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cmd+=" --initial-cluster-state new --initial-cluster-token etcd-cluster-01"
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cmd+=" --initial-cluster $HOSTNAME=http://$SERVICE_HOST:$ETCD_PEER_PORT"
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cmd+=" --initial-advertise-peer-urls http://$SERVICE_HOST:$ETCD_PEER_PORT"
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cmd+=" --advertise-client-urls http://$SERVICE_HOST:$ETCD_PORT"
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if [ "$SERVICE_LISTEN_ADDRESS" == "::" ]; then
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cmd+=" --listen-peer-urls http://[::]:$ETCD_PEER_PORT "
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else
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cmd+=" --listen-peer-urls http://0.0.0.0:$ETCD_PEER_PORT "
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fi
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cmd+=" --listen-client-urls http://$SERVICE_HOST:$ETCD_PORT"
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if [ "$ENABLE_DEBUG_LOG_LEVEL" == "True" ]; then
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cmd+=" --debug"
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fi
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local unitfile="$SYSTEMD_DIR/$ETCD_SYSTEMD_SERVICE"
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write_user_unit_file $ETCD_SYSTEMD_SERVICE "$cmd" "" "root"
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iniset -sudo $unitfile "Unit" "After" "network.target"
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iniset -sudo $unitfile "Service" "Type" "notify"
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iniset -sudo $unitfile "Service" "Restart" "on-failure"
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iniset -sudo $unitfile "Service" "LimitNOFILE" "65536"
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if is_arch "aarch64"; then
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iniset -sudo $unitfile "Service" "Environment" "ETCD_UNSUPPORTED_ARCH=arm64"
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fi
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$SYSTEMCTL daemon-reload
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$SYSTEMCTL enable $ETCD_SYSTEMD_SERVICE
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$SYSTEMCTL start $ETCD_SYSTEMD_SERVICE
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}
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# stop_etcd3() stops the etcd3 process
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function stop_etcd3 {
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# Don't install in sub nodes (multinode scenario)
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if [ "$SERVICE_HOST" != "$HOST_IP" ]; then
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return
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fi
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$SYSTEMCTL stop $ETCD_SYSTEMD_SERVICE
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}
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function cleanup_etcd3 {
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# Don't install in sub nodes (multinode scenario)
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if [ "$SERVICE_HOST" != "$HOST_IP" ]; then
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return
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fi
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$SYSTEMCTL disable $ETCD_SYSTEMD_SERVICE
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local unitfile="$SYSTEMD_DIR/$ETCD_SYSTEMD_SERVICE"
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sudo rm -f $unitfile
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$SYSTEMCTL daemon-reload
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if [[ "$ETCD_USE_RAMDISK" == "True" ]]; then
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sudo umount $ETCD_DATA_DIR
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fi
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sudo rm -rf $ETCD_DATA_DIR
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}
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function install_etcd3 {
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echo "Installing etcd"
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# Create the necessary directories
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sudo mkdir -p $ETCD_BIN_DIR
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sudo mkdir -p $ETCD_DATA_DIR
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if [[ "$ETCD_USE_RAMDISK" == "True" ]]; then
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sudo mount -t tmpfs -o nodev,nosuid,size=${ETCD_RAMDISK_MB}M tmpfs $ETCD_DATA_DIR
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fi
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# Download and cache the etcd tgz for subsequent use
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local etcd_file
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etcd_file="$(get_extra_file $ETCD_DOWNLOAD_LOCATION)"
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if [ ! -f "$FILES/etcd-$ETCD_VERSION-linux-$ETCD_ARCH/etcd" ]; then
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echo "${ETCD_SHA256} $etcd_file" > $FILES/etcd.sha256sum
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# NOTE(yuanke wei): rm the damaged file when checksum fails
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sha256sum -c $FILES/etcd.sha256sum || (sudo rm -f $etcd_file; exit 1)
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tar xzvf $etcd_file -C $FILES
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sudo cp $FILES/$ETCD_NAME/etcd $ETCD_BIN_DIR/etcd
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sudo cp $FILES/$ETCD_NAME/etcdctl $ETCD_BIN_DIR/etcdctl
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fi
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if [ ! -f "$ETCD_BIN_DIR/etcd" ]; then
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sudo cp $FILES/$ETCD_NAME/etcd $ETCD_BIN_DIR/etcd
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sudo cp $FILES/$ETCD_NAME/etcdctl $ETCD_BIN_DIR/etcdctl
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fi
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}
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# Restore xtrace
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$_XTRACE_ETCD3
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# Tell emacs to use shell-script-mode
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## Local variables:
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## mode: shell-script
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## End:
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