如何理解sftp server服务SftpGo

如何理解sftp server服务SftpGo，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

SftpGo是一款高性能、功能齐全、易用可配置的一款sftp server 服务，基于go开发。目前在linux、macos下均可以稳定运行(windows个人未测试)。数据可以持久化到主流的数据库，诸如Mysql、PostgreSQL、Sqlilte.  

sftpgo主要组成

• 服务端主程序: sftpgosever

• cli脚本: sftpcli

数据目录

• conf存储服务配置文件

• data创建sftp用户目录

• backups存储应用备份数据

本次基于k8s运行服务、mysql5.7做持久化存储、腾讯云NFS服务做数据目录、configmap挂载配置文件、nginx stream提供域名映射tcp访问

构建镜像

  直接拉取

docker pull taylordang/sftpgo:v1.0

  本地基于Dockerfile构建

查看具体文档: [https://github.com/dtcka/sftpgo/tree/master/docker/sftpgo/alpine](https://github.com/dtcka/sftpgo/tree/master/docker/sftpgo/alpine)

构建脚手架

构建脚本: [https://github.com/dtcka/sftpgo/blob/master/docker/rest-api-cli/Dockerfile](https://github.com/dtcka/sftpgo/blob/master/docker/rest-api-cli/Dockerfile)

标准配置文件

{
       "sftpd": {
               "bind_port": 2022,
               "bind_address": "0.0.0.0",
               "idle_timeout": 15,
               "max_auth_tries": 0,
               "umask": "0022",
               "banner": "",
               "upload_mode": 0,
               "actions": {
                       "execute_on": [],
                       "command": "",
                       "http_notification_url": ""
               },
               "keys": [],
               "kex_algorithms": [],
               "ciphers": [],
               "macs": [],
               "login_banner_file": "",
               "setstat_mode": 0,
               "enabled_ssh_commands": [
                       "md5sum",
                       "sha1sum",
                       "cd",
                       "pwd",
                       "scp"
               ],
               "keyboard_interactive_auth_program": "",
               "proxy_protocol": 0,
               "proxy_allowed": []
       },
       "data_provider": {
               "driver": "mysql",
               "name": "sftpgo",
               "host": "xxxxxx",
               "port": 9999,
               "username": "sftpgo",
               "password": "xxxxx",
               "sslmode": 0,
               "connection_string": "",
               "users_table": "users",
               "manage_users": 1,
               "track_quota": 2,
               "pool_size": 0,
               "users_base_dir": "",
               "actions": {
                       "execute_on": [],
                       "command": "",
                       "http_notification_url": ""
               },
               "external_auth_program": "",
               "external_auth_scope": 0,
               "credentials_path": "credentials",
               "pre_login_program": ""
       },
       "httpd": {
               "bind_port": 8080,
               "bind_address": "0.0.0.0",
               "templates_path": "templates",
               "static_files_path": "static",
               "backups_path": "backups",
               "auth_user_file": "",
               "certificate_file": "",
               "certificate_key_file": ""
       }
}

运行应用

   以上服务配置准备完成之后，运行容器会在数据库中自动生成对应的表<br />

提供服务外部入库

1. 设置内网服务入口

apiVersion: v1
kind: Service
metadata:
 name: sftpgo
 namespace: sftp
spec:
 clusterIP: xxxx
 externalTrafficPolicy: Cluster
 ports:
 - name: 8080-8080-tcp
   nodePort: 31807
   port: 8080
   protocol: TCP
   targetPort: 8080
 - name: 2022-2022-tcp
   nodePort: 30865
   port: 2022
   protocol: TCP
   targetPort: 2022
 selector:
   k8s-app: sftpgo
   qcloud-app: sftpgo
 sessionAffinity: None
 type: LoadBalancer
status:
 loadBalancer:
   ingress:
   - ip: xxxx

2. 设置外部服务入口

  - nginx配置文件   ``` apiVersion: v1 data: nginx.conf: |- user nginx; worker_processes auto; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { worker_connections 1024; } stream { server { listen 2022; proxy_pass sftpgo服务对应的内网ip:2022; } } kind: ConfigMap metadata: name: tcp-config namespace: sftp

##### 3.测试下服务状态以及数据目录权限
![image.png](https://oscimg.oschina.net/oscnet/up-bee83bd7e27b4e982526a9d3c88a450f7fe.png)
<br />测试ok：数据权限UID GID需要设置为1003.<br />

##### 4. 设置域名解析到nginx的externalIps即可实现域名访问
![image.png](https://oscimg.oschina.net/oscnet/up-331b767e5d7c85d5f06f1a9c01daa105227.png)

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