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