Ftps 服务器无法使用 kubernetes 正常工作



我在ftps filezilla和Kubernetes上遇到了几个星期的问题。

上下文

我有一个关于Kubernetes和ftps的学校项目。我需要在kubernetes的21端口创建一个ftps服务器,它需要在alpine-linux上运行。因此,我使用docker容器创建了一个ftpsalpine服务器的映像。我测试它,如果它自己正常工作:使用docker run --name test-alpine -itp 21:21 test_alpine我在filezilla中有这个输出:

Status: Connecting to 192.168.99.100:21…
Status: Connection established, waiting for welcome message…
Status: Initializing TLS…
Status: Verifying certificate…
Status: TLS connection established.
Status: Logged in
Status: Retrieving directory listing…
Status: Calculating timezone offset of server…
Status: Timezone offset of server is 0 seconds.
Status: Directory listing of “/” successful

它成功地工作了,filezilla看到了我的ftps目录中的文件我现在很好(在活动模式下工作(。

问题

所以我想要的是在我的kubernetes集群中使用我的映像(我使用Minikube(。当我将我的docker映像连接到kubernetes中的入口服务部署时,我得到了:

Status: Connecting to 192.168.99.100:30894…
Status: Connection established, waiting for welcome message…
Status: Initializing TLS…
Status: Verifying certificate…
Status: TLS connection established.
Status: Logged in
Status: Retrieving directory listing…
Command:    PWD
Response:   257 “/” is the current directory
Command:    TYPE I
Response:   200 Switching to Binary mode.
Command:    PORT 192,168,99,1,227,247
Response:   500 Illegal PORT command.
Command:    PASV
Response:   227 Entering Passive Mode (172,17,0,5,117,69).
Command:    LIST
Error:  The data connection could not be established: EHOSTUNREACH - No route to host
Error:  Connection timed out after 20 seconds of inactivity
Error:  Failed to retrieve directory listing

设置


ingress.yaml :
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$1
namespace: default
name: ingress-controller
spec:
backend:
serviceName: my-nginx
servicePort: 80
backend:
serviceName: ftps-alpine
servicePort: 21
ftps-alpine.yml :
apiVersion: v1
kind: Service
metadata:
name: ftps-alpine
labels:
run: ftps-alpine
spec:
type: NodePort
ports:
port: 21
targetPort: 21
protocol: TCP
name: ftp21
port: 20
targetPort: 20
protocol: TCP
name: ftp20
selector:
run: ftps-alpine
apiVersion: apps/v1
kind: Deployment
metadata:
name: ftps-alpine
spec:
selector:
matchLabels:
run: ftps-alpine
replicas: 1
template:
metadata:
labels:
run: ftps-alpine
spec:
- name: ftps-alpine
image: test_alpine
imagePullPolicy: Never
ports:
- containerPort: 21
- containerPort: 20

我尝试了什么

  • 当我看到错误消息时:错误:数据连接无法建立:EHOSTUNREACH-没有途径托管谷歌它和我看到此消息:被动模式下的FTP:EHOSTUNREACH-没有到主机的路由。我已经在活动模式下运行我的ftps服务器了
  • 更改vsftpd.conf文件和我的服务:
vsftpd.conf :
seccomp_sandbox=NO
pasv_promiscuous=NO
listen=NO
listen_ipv6=YES
anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=022
dirmessage_enable=YES
use_localtime=YES
xferlog_enable=YES
connect_from_port_20=YES
chroot_local_user=YES
#secure_chroot_dir=/vsftpd/empty
pam_service_name=vsftpd
pasv_enable=YES
pasv_min_port=30020
pasv_max_port=30021
user_sub_token=$USER
local_root=/home/$USER/ftp
userlist_enable=YES
userlist_file=/etc/vsftpd.userlist
userlist_deny=NO
rsa_cert_file=/etc/ssl/private/vsftpd.pem
rsa_private_key_file=/etc/ssl/private/vsftpd.pem
ssl_enable=YES
allow_anon_ssl=NO
force_local_data_ssl=YES
force_local_logins_ssl=YES
ssl_tlsv1=YES
ssl_sslv2=NO
ssl_sslv3=NO
allow_writeable_chroot=YES
#listen_port=21

我确实将我的kubernetes的nodeport更改为30020和30021,并将它们添加到容器端口中。我更改了pasv最小端口和最大端口。我添加了我的minikube ip的pasv_address。什么都不管用。

问题

如果没有我的kubernetes集群,我怎么能成功地获得第一条消息?

如果你有任何问题需要澄清,没问题。

更新

多亏了coderanger,我有进步,有这个问题:

Status: Connecting to 192.168.99.100:30894...
Status: Connection established, waiting for welcome message...
Status: Initializing TLS...
Status: Verifying certificate...
Status: TLS connection established.
Status: Logged in
Status: Retrieving directory listing...
Command:    PWD
Response:   257 "/" is the current directory
Command:    TYPE I
Response:   200 Switching to Binary mode.
Command:    PASV
Response:   227 Entering Passive Mode (192,168,99,100,178,35).
Command:    LIST
Error:  The data connection could not be established: ECONNREFUSED - Connection refused by server

它可以进行以下更改:

apiVersion: v1
kind: Service
metadata:
name: ftps-alpine
labels:
run: ftps-alpine
spec:
type: NodePort
ports:
- port: 21
targetPort: 21
nodePort: 30025
protocol: TCP
name: ftp21
- port: 20
targetPort: 20
protocol: TCP
nodePort: 30026
name: ftp20
- port: 30020
targetPort: 30020
nodePort: 30020
protocol: TCP
name: ftp30020
- port: 30021
targetPort: 30021
nodePort: 30021
protocol: TCP
name: ftp30021
selector:
run: ftps-alpine
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: ftps-alpine
spec:
selector:
matchLabels:
run: ftps-alpine
replicas: 1
template:
metadata:
labels:
run: ftps-alpine
spec:
containers:
- name: ftps-alpine
image: test_alpine
imagePullPolicy: Never
ports:
- containerPort: 21
- containerPort: 20
- containerPort: 30020
- containerPort: 30021

对于vsftpd.conf:

seccomp_sandbox=NO
pasv_promiscuous=NO
listen=YES
listen_ipv6=NO
anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=022
dirmessage_enable=YES
use_localtime=YES
xferlog_enable=YES
connect_from_port_20=YES
chroot_local_user=YES
#secure_chroot_dir=/vsftpd/empty
pam_service_name=vsftpd
pasv_enable=YES
pasv_min_port=30020
pasv_max_port=30021
user_sub_token=$USER
local_root=/home/$USER/ftp
userlist_enable=YES
userlist_file=/etc/vsftpd.userlist
userlist_deny=NO
rsa_cert_file=/etc/ssl/private/vsftpd.pem
rsa_private_key_file=/etc/ssl/private/vsftpd.pem
ssl_enable=YES
allow_anon_ssl=NO
force_local_data_ssl=YES
force_local_logins_ssl=YES
ssl_tlsv1=YES
ssl_sslv2=NO
ssl_sslv3=NO
allow_writeable_chroot=YES
#listen_port=21
pasv_address=#minikube_ip#

首先,您需要将被动端口范围固定为实际的端口20,就像您在服务中设置的那样:

pasv_min_port=20
pasv_max_port=20

然后,您需要覆盖pasv_address以匹配用户应该连接到的任何IP,选择一个节点IP。

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