etcd cluster deploy scripts

etcd-deploy.sh

#!/bin/bash

CERTS=$PWD/cert
ETCD_IMAGE=k8s.gcr.io/etcd:3.4.3-0

NODE1=(node1 192.168.234.130:2379 192.168.234.130:2380 127.0.0.1:2381)

NODE2=(node2 192.168.234.130:3379 192.168.234.130:3380 127.0.0.1:3381 node2=https://192.168.234.130:3380,node1=https://192.168.234.130:2380)

NODE3=(node3 192.168.234.130:4379 192.168.234.130:4380 127.0.0.1:4381 node3=https://192.168.234.130:4380,node2=https://192.168.234.130:3380,node1=https://192.168.234.130:2380)

startEtcdNode(){

    local -a extra_cmd=()

    local name=$1

    # advertise client endpoint, eg: 192.168.234.130:2379
    local client_ep=$2

    # advertise client endpoint, eg: 192.168.234.130:2380
    local peer_ep=$3

    # advertise client endpoint, eg: 127.0.0.1:2381
    local metric_ep=$4

    if [[ $# < 4 ]];then
      echo "parameter error\n"
      exit 1
    elif [[ $# == 5 ]];then
      extra_cmd+=" --initial-cluster-state=existing --initial-cluster=$5"
    else
      extra_cmd+=" --initial-cluster=$1=https://$3"
    fi

    local -a cmd=()

    cmd+="docker run -d --net host -v ${CERTS}:/opt/pki/etcd ${ETCD_IMAGE} \
    etcd --name=${name} --snapshot-count=10000 \
    --trusted-ca-file=/opt/pki/etcd/ca.crt \
    --peer-trusted-ca-file=/opt/pki/etcd/ca.crt \
    --peer-cert-file=/opt/pki/etcd/peer.crt \
    --peer-key-file=/opt/pki/etcd/peer.key \
    --cert-file=/opt/pki/etcd/server.crt \
    --peer-client-cert-auth=true \
    --client-cert-auth=true \
    --key-file=/opt/pki/etcd/server.key \
    --advertise-client-urls https://${client_ep} \
    --initial-advertise-peer-urls https://${peer_ep} \
    --listen-client-urls https://${client_ep},https://127.0.0.1:${client_ep#*:} \
    --listen-peer-urls https://${peer_ep} \
    --listen-metrics-urls http://${metric_ep} \
    ${extra_cmd}"

    ${cmd}
}


addEtcdMember(){
    bash $PWD/etcdctl.sh $@
}

# add node1
startEtcdNode ${NODE1[0]} ${NODE1[1]} ${NODE1[2]} ${NODE1[3]}

sleep 5

addEtcdMember member add ${NODE2[0]} --peer-urls=https://${NODE2[2]}

sleep 5

# add node2
startEtcdNode ${NODE2[0]} ${NODE2[1]} ${NODE2[2]} ${NODE2[3]} ${NODE2[4]}

sleep 5

# add node3
addEtcdMember member add ${NODE3[0]} --peer-urls=https://${NODE3[2]}

sleep 5

startEtcdNode ${NODE3[0]} ${NODE3[1]} ${NODE3[2]} ${NODE3[3]} ${NODE3[4]}

etcdctl.sh

#!/bin/bash

PWD=$PWD
CLIENT_EPS=https://192.168.234.130:2379,https://192.168.234.130:3379,https://192.168.234.130:4379

docker run --rm -it \
--net host \
-v $PWD/cert:/opt/pki/etcd \
k8s.gcr.io/etcd:3.4.3-0 etcdctl \
--cacert /opt/pki/etcd/ca.crt \
--cert /opt/pki/etcd/server.crt \
--key /opt/pki/etcd/server.key \
--endpoints ${CLIENT_EPS} \
$@