从头搭建 influxdb

1.登陆机器

机器有密码，每次登陆都要输入，好麻烦，于是这样：

ssh-copy-id root@x.x.x.x

它会将你本机的公钥添加到目标机器的 ~/.ssh/authorized_keys 中，并对文件夹与文件设置合适的权限

2.安装 nodejs（忽略）

安装nodejs

yum install nodejs

使用cnpm替换npm来加速下载

npm install -g cnpm --registry=https://registry.npm.taobao.org

下载 n

cnpm install -g n

使用n更新nodejs到最新稳定版本

n stable

3.安装pm2（忽略）

cnpm install pm2@latest -g

4.下载安装 influxdb

wget https://dl.influxdata.com/influxdb/releases/influxdb-1.3.2.x86_64.rpm
sudo yum localinstall influxdb-1.3.2.x86_64.rpm

5.配置、启动、设置开机启动

# 默认配置
/etc/influxdb/influxdb.conf
# 启动
service influxdb start
# 设置开机启动
systemctl enable influxdb

6.为 influxdb 添加权限认证

[http]
  enabled = true
  bind-address = ":8086"
  auth-enabled = true # ✨
  log-enabled = true

然后重启实例验证：

curl -G http://localhost:8086/query --data-urlencode "q=SHOW DATABASES"

{"results":[{"statement_id":0,"series":[{"name":"databases","columns":["name"],"values":[["_internal"]]}]}]}

即说明未开启认证
返回：

{"error":"error authorizing query: create admin user first or disable authentication"}

即说明已开启认证
当我们开启了认证，influxdb需要我们至少创建一个admin用户，不然不能交互

创建一个 admin 用户（至少一个）

# influx
Connected to http://localhost:8086 version 1.3.2
InfluxDB shell version: 1.3.2
> CREATE USER admin with PASSWORD 'password' WITH ALL PRIVILEGES
>

我们创建了用户：
验证：

curl -G http://localhost:8086/query -u admin:password  --data-urlencode "q=SHOW DATABASES"

7.访问日志

因为我们刚才开启了日志（log-enabled = true）：
可以在：

/var/log/message

查看访问记录

Aug  9 20:16:57 localhost influxd: [httpd] 127.0.0.1 - admin [09/Aug/2017:20:16:57 +0800] "GET /query?q=SHOW%20DATABASES HTTP/1.1" 401 33 "-" "curl/7.29.0" a395f891-7cfc-11e7-800a-000000000000 119520 Aug 9 20:17:06 localhost influxd: [I] 2017-08-09T12:17:06Z SHOW DATABASES service=query Aug 9 20:17:06 localhost influxd: [httpd] 127.0.0.1 - admin [09/Aug/2017:20:17:06 +0800] "GET /query?q=SHOW+DATABASES HTTP/1.1" 200 109 "-" "curl/7.29.0" a92acfad-7cfc-11e7-800b-000000000000 531 Aug 9 20:17:09 localhost influxd: [I] 2017-08-09T12:17:09Z SHOW DATABASES service=query Aug 9 20:17:09 localhost influxd: [httpd] 127.0.0.1 - admin [09/Aug/2017:20:17:09 +0800] "GET /query?q=SHOW+DATABASES HTTP/1.1" 200 109 "-" "curl/7.29.0" aaf24597-7cfc-11e7-800c-000000000000 549 Aug 9 20:17:10 localhost influxd: [I] 2017-08-09T12:17:10Z SHOW DATABASES service=query Aug 9 20:17:10 localhost influxd: [httpd] 127.0.0.1 - admin [09/Aug/2017:20:17:10 +0800] "GET /query?q=SHOW+DATABASES HTTP/1.1" 200 109 "-" "curl/7.29.0" ab5ead93-7cfc-11e7-800d-000000000000 582 Aug 9 20:17:11 localhost influxd: [I] 2017-08-09T12:17:11Z SHOW DATABASES service=query Aug 9 20:17:11 localhost influxd: [httpd] 127.0.0.1 - admin [09/Aug/2017:20:17:11 +0800] "GET /query?q=SHOW+DATABASES HTTP/1.1" 200 109 "-" "curl/7.29.0" abc7cbd1-7cfc-11e7-800e-000000000000 496

后面会补充些权限与用户的东西

你们不要以为这就完啦，当然不是搭建这么容易，后面还有 aggregation 等偏应用的东西