经历了几天折磨一样的学习，目前在本地环境中配置成功了一套，以供自己留存吧，实在是网上的很多文章要么太老了，要么就是乱写一通。
APISIX官方网址：https://apisix.apache.org/
1、安装ETCD（分布式Key-Value存储系统）
wget https://github.com/etcd-io/etcd/releases/download/v3.5.8/etcd-v3.5.8-linux-amd64.tar.gz tar -xvf etcd-v3.5.8-linux-amd64.tar.gz && \ cd etcd-v3.5.8-linux-amd64 && \ sudo cp -a etcd etcdctl /usr/bin/
这里的安装时间因为国内的原因，可能需要执行很长时间，我们同样也可以将文件提前下载好，丢到CentOS服务器上，再执行解压缩就可以了。
2、配置ETCD
（1）创建 /etc/etcd/etcd.service 服务配置文件，并编辑内容如下（本实例为单机模式部署）：
ETCD_NAME=etcd ETCD_DATA_DIR=/etc/etcd/data ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379 ETCD_LISTEN_PEER_URLS=http://0.0.0.0:2380 ETCD_ADVERTISE_CLIENT_URLS=http://0.0.0.0:2379 ETCD_INITIAL_ADVERTISE_PEER_URLS=http://0.0.0.0:2380 ETCD_INITIAL_CLUSTER_STATE=new ETCD_INITIAL_CLUSTER_TOKEN=etcd-cluster
编写完成后，保存即可。
systemctl start etcd systemctl enable etcd
到这里，整个ETCD服务就安装完成了
3、安装APISIX
（1）安装OpenRestry并且安装APISIX包
sudo yum install -y https://repos.apiseven.com/packages/centos/apache-apisix-repo-1.0-1.noarch.rpm
（2）添加APISIX YUM包源
sudo yum-config-manager --add-repo https://repos.apiseven.com/packages/centos/apache-apisix.repo
（3）执行APISIX安装
# 默认安装 sudo yum install apisix # 指定版本安装 sudo yum install apisix-3.3.0
安装完APISIX我们先不要启动，先去 /usr/local/apisix/conf/config.yaml中修改对应的文件配置，我这例子的配置如下：
# # Licensed to the Apache Software Foundation (ASF under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"; you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # If you want to set the specified configuration value, you can set the new # in this file. For example if you want to specify the etcd address: # # deployment: # role: traditional # role_traditional: # config_provider: etcd # etcd: # host: # - http://127.0.0.1:2379 # # To configure via environment variables, you can use `${{VAR}}` syntax. For instance: # # deployment: # role: traditional # role_traditional: # config_provider: etcd # etcd: # host: # - http://${{ETCD_HOST}}:2379 # # And then run `export ETCD_HOST=$your_host` before `make init`. # # If the configured environment variable can't be found, an error will be thrown. # # Also, If you want to use default value when the environment variable not set, # Use `${{VAR:=default_value}}` instead. For instance: # # deployment: # role: traditional # role_traditional: # config_provider: etcd # etcd: # host: # - http://${{ETCD_HOST:=localhost}}:2379 # # This will find environment variable `ETCD_HOST` first, and if it's not exist it will use `localhost` as default value. # apisix: node_listen: 8000 deployment: role: traditional role_traditional: config_provider: etcd etcd: host: - http://127.0.0.1:2379 admin: admin_key: - name: admin key: edd1c9f034335f136f87ad84b625c8f1 # using fixed API token has security risk, please update it when you deploy to production environment role: admin
这里要注意的是，apisix: node_listen 是不存在的，你要自己添加上并指定一下需要绑定的端口，并且在etcd 下的host 指定你ETCD服务器安装的位置（推荐使用内网，不要对外开放端口哈）
＃ 使用systemctl 将APISIX安装为服务 systemctl start apisix # 添加服务开机自启动 systemctl enable apsix
启动成功后，通过访问网址 http://127.0.0.1:8000 会提示404 Route Not Found的字样，这时，我们的APISIX服务就安装完成咯！
4、安装APISIX-DASHBOARD（管理控制面板）
因为我们使用的CENTOS直接安装，那么我们执行如下的BASH脚本即可：
sudo yum install -y https://github.com/apache/apisix-dashboard/releases/download/v3.0.1/apisix-dashboard-3.0.1-0.el7.x86_64.rpm
安装需要一定的时间，安装完成后记得去 /usr/local/apisix/dashboard/conf/conf.yaml 文件中修改对应的配置ETCD地址及管理员、用户的账号及密码！
＃ 使用systemctl 将APISIX-DASHBOARD安装为服务 systemctl start apisix-dashboard # 添加服务开机自启动 systemctl enable apsix-dashboard
以上所有便是APISIX在centos 7.6的安装过程，如果安装中大家有什么问题，可以一起留言讨论一下