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基于CentOS 7.6安装及配置APISIX 3.0环境 - star丶清影

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基于CentOS 7.6安装及配置APISIX 3.0环境

最近一直在研究微服务相关内容，通过对比各大API网关，发现新起之秀 APISIX无论从开源程度上来讲还是功能上，都拥有很大的优势。

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/

ETCD官方网址：https://etcd.io/

1、安装ETCD（分布式Key-Value存储系统）

根据apisix提供的官方网档，执行以下脚本就可以了：

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

不知道是我找的资料不对，还是官方精简了一些，本打算使用 systemctl 安装ETCD，但是各种提示报错，经过了大量的资料搜索和文章的研究与尝试，这里需要以下步骤进行安装配置：

（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。

（2）以服务方式启用及启用加载自启

systemctl start etcd
systemctl enable etcd

到这里，整个ETCD服务就安装完成了

3、安装APISIX

这一步操作很简单，直接根据官方文档来操作就可以了，安装说明：https://apisix.apache.org/docs/apisix/installation-guide/

（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）

这里配置完成后，我们就可以使用systemctl启动APISIX咯

＃ 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）

同样的，我们根据官方给的文档进行安装，文档地址：https://apisix.apache.org/docs/dashboard/install/

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！

以上操作完成后，同样的执行以下命令，apisix-dashboard也就启动完成，我这里默认开的是9000端口，那么完成后通过浏览器访问 http://127.0.0.1:9000 就可以使用咯

＃ 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
49014-20230510124257911-1044808758.png
49014-20230510124334577-1134369065.png

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


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