Add TLS Support

Dockerfile

@@ -1,12 +1,13 @@
 FROM alpine:3.13
+
+LABEL maintainer="Amin Vakil <info@aminvakil.com>"
+
 RUN apk --no-cache add vsftpd
 
-COPY start_vsftpd.sh /bin/start_vsftpd.sh
+COPY vsftpd.pem /etc/ssl/certs/vsftpd.pem
+COPY start_vsftpd.sh /usr/local/bin/start_vsftpd.sh
 COPY vsftpd.conf /etc/vsftpd/vsftpd.conf
 
-EXPOSE 21 21000-21010
-VOLUME /ftp/ftp
-
 STOPSIGNAL SIGKILL
 
-ENTRYPOINT ["/bin/start_vsftpd.sh"]
+ENTRYPOINT ["/usr/local/bin/start_vsftpd.sh"]

README.md

@@ -1,5 +1,4 @@
 # docker-alpine-ftp-server
-[![Docker Stars](https://img.shields.io/docker/stars/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/) [![Docker Pulls](https://img.shields.io/docker/pulls/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/) [![Docker Automated build](https://img.shields.io/docker/automated/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/) [![Docker Build Status](https://img.shields.io/docker/build/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/) [![MicroBadger Layers](https://img.shields.io/microbadger/layers/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/) [![MicroBadger Size](https://img.shields.io/microbadger/image-size/delfer/alpine-ftp-server.svg)](https://hub.docker.com/r/delfer/alpine-ftp-server/)  
 Small and flexible docker image with vsftpd server
 
 ## Usage
@@ -26,3 +25,6 @@ Environment variables:
 - `user|password foo|bar|/home/foo`
 - `user|password|/home/user/dir|10000`
 - `user|password||10000`
+=======
+# docker-alpine-ftp-server-tls
+Small and flexible docker image with vsftpd server with tls

start_vsftpd.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
-
+set +x
 #Remove all ftp users
-grep '/ftp/' /etc/passwd | cut -d':' -f1 | xargs -n1 deluser
+#grep '/ftp/' /etc/passwd | cut -d':' -f1 | xargs -n1 deluser
 
 #Create users
 #USERS='name1|password1|[folder1][|uid1] name2|password2|[folder2][|uid2]'
@@ -15,7 +15,7 @@ grep '/ftp/' /etc/passwd | cut -d':' -f1 | xargs -n1 deluser
 #Default user 'ftp' with password 'alpineftp'
 
 if [ -z "$USERS" ]; then
-  USERS="ftp|alpineftp"
+  USERS="amin|alpineftp"
 fi
 
 for i in $USERS ; do
@@ -55,6 +55,5 @@ fi
 if [ ! -z "$1" ]; then
   exec "$@"
 else
-  exec /usr/sbin/vsftpd -opasv_min_port=$MIN_PORT -opasv_max_port=$MAX_PORT $ADDR_OPT /etc/vsftpd/vsftpd.conf
+  exec /usr/sbin/vsftpd -opasv_min_port=$MIN_PORT -opasv_max_port=$MAX_PORT $ADDR_OPT /etc/vsftpd/vsftpd.conf & sleep infinity
 fi
-

vsftpd.conf

@@ -1,5 +1,5 @@
 # Allow anonymous FTP? (Beware - allowed by default if you comment this out).
-anonymous_enable=NO
+anonymous_enable=YES
 #
 # Uncomment this to allow local users to log in.
 local_enable=YES
@@ -9,11 +9,7 @@ write_enable=YES
 #
 # Default umask for local users is 077. You may wish to change this to 022,
 # if your users expect that (022 is used by most other ftpd's)
-local_umask=022
+#local_umask=022
-#
-# Activate directory messages - messages given to remote users when they
-# go into a certain directory.
-dirmessage_enable=YES
 #
 # Activate logging of uploads/downloads.
 xferlog_enable=YES
@@ -21,15 +17,9 @@ xferlog_enable=YES
 # Make sure PORT transfer connections originate from port 20 (ftp-data).
 connect_from_port_20=YES
 #
-# If you want, you can arrange for uploaded anonymous files to be owned by
-# a different user. Note! Using "root" for uploaded files is not
-# recommended!
-#chown_uploads=YES
-#chown_username=whoever
-#
 # You may override where the log file goes if you like. The default is shown
 # below.
-#xferlog_file=/dev/stdout
+#xferlog_file=/var/log/vsftpd.log
 vsftpd_log_file=/proc/1/fd/1
 #
 # If you want, you can have your log file in standard ftpd xferlog format.
@@ -42,6 +32,10 @@ vsftpd_log_file=/proc/1/fd/1
 # You may change the default value for timing out a data connection.
 #data_connection_timeout=120
 #
+# It is recommended that you define on your system a unique user which the
+# ftp server can use as a totally isolated and unprivileged user.
+#nopriv_user=ftpsecure
+#
 # Enable this and the server will recognise asynchronous ABOR requests. Not
 # recommended for security (the code is non-trivial). Not enabling it,
 # however, may confuse older FTP clients.
@@ -60,7 +54,7 @@ vsftpd_log_file=/proc/1/fd/1
 #ascii_download_enable=YES
 #
 # You may fully customise the login banner string:
-ftpd_banner=Welcome Alpine ftp server https://hub.docker.com/r/delfer/alpine-ftp-server/
+ftpd_banner=Welcome Alpine ftp server tls https://quay.io/aminvakil/alpine-ftp-server-tls
 #
 # You may specify an explicit list of local users to chroot() to their home
 # directory. If chroot_local_user is YES, then this list becomes a list of
@@ -79,17 +73,34 @@ ftpd_banner=Welcome Alpine ftp server https://hub.docker.com/r/delfer/alpine-ftp
 # the presence of the "-R" option, so there is a strong case for enabling it.
 #ls_recurse_enable=YES
 #
+
 # When "listen" directive is enabled, vsftpd runs in standalone mode and
 # listens on IPv4 sockets. This directive cannot be used in conjunction
 # with the listen_ipv6 directive.
 listen=YES
 #
-## Enable passive mode
+# Enable passive mode
 pasv_enable=YES
 pasv_addr_resolve=YES
 #
-## Disable seccomp filter sanboxing
+# Disable seccomp filter sanboxing
 seccomp_sandbox=NO
+#
 # Run in background
 background=NO
 
+ssl_enable=YES
+
+# by default all non anonymous logins and forced to use SSL to send and receive password and data, set to NO to allow non secure connections
+force_local_logins_ssl=YES
+force_local_data_ssl=YES
+
+# provide the path of your certificate and of your private key
+# note that both can be contained in the same file or in different files
+rsa_cert_file=/etc/ssl/certs/vsftpd.pem
+rsa_private_key_file=/etc/ssl/certs/vsftpd.pem
+
+# this setting is set to YES by default and requires all data connections exhibit session reuse which proves they know the secret of the control channel.
+# this is more secure but is not supported by many FTP clients, set to NO for better compatibility
+require_ssl_reuse=YES
+ssl_ciphers=HIGH

vsftpd.pem

@@ -0,0 +1,50 @@
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----