#!/bin/bash

# Usage: etcd_member_replace <member_id>
# 
# This script removes a (faulty) member id from the existing etcd cluster and then defines a new id.
# The new etcd member should be started initialy with an empty datadir
# and synced once, before we start it again from the systemd unit

HOME=$( cd "$(dirname "$0")" && pwd )
source $HOME/../config

systemctl stop etcd

/usr/local/bin/etcdctl --endpoints="https://${ETCD_1_IP}:2379,https://${ETCD_2_IP}:2379,https://${ETCD_3_IP}:2379" --cert ${CA_DIR}/etcd.crt --key ${CA_DIR}/etcd.key --cacert ${CA_DIR}/etcd-ca.crt member remove $1
sleep 10

/usr/local/bin/etcdctl --endpoints="https://${ETCD_1_IP}:2379,https://${ETCD_2_IP}:2379,https://${ETCD_3_IP}:2379" --cert ${CA_DIR}/etcd.crt --key ${CA_DIR}/etcd.key --cacert ${CA_DIR}/etcd-ca.crt member add ${NODE_NAME_SHORT} --peer-urls="https://${NODE_IP}:2380"

/usr/local/bin/etcdctl --endpoints="https://${ETCD_1_IP}:2379,https://${ETCD_2_IP}:2379,https://${ETCD_3_IP}:2379" --cert ${CA_DIR}/etcd.crt --key ${CA_DIR}/etcd.key --cacert ${CA_DIR}/etcd-ca.crt member list

#rm -fr /var/lib/etcd/member/

/usr/local/bin/etcd \
--name=${NODE_NAME_SHORT} \
--listen-client-urls=https://${NODE_IP}:2379,https://127.0.0.1:2379 \
--advertise-client-urls=https://${NODE_IP}:2379 \
--data-dir=/var/lib/etcd \
--cert-file=${CA_DIR}/etcd.crt \
--key-file=${CA_DIR}/etcd.key \
--peer-cert-file=${CA_DIR}/etcd-peer.crt \
--peer-key-file=${CA_DIR}/etcd-peer.key \
--trusted-ca-file=${CA_DIR}/etcd-ca.crt \
--peer-trusted-ca-file=${CA_DIR}/etcd-ca.crt \
--peer-client-cert-auth \
--listen-peer-urls=https://${NODE_IP}:2380 \
--client-cert-auth \
--initial-advertise-peer-urls=https://${NODE_IP}:2380 \
--initial-cluster-token="k8x-21b5f25de1" \
--initial-cluster=${ETCD_1_NAME}=https://${ETCD_1_IP}:2380,${ETCD_2_NAME}=https://${ETCD_2_IP}:2380,${ETCD_3_NAME}=https://${ETCD_3_IP}:2380 \
--initial-cluster-state=existing