Merge branch 'jessie'

.dockerignore

@@ -1,3 +1,2 @@
 .git
 tests
-README.md

Dockerfile

@@ -1,7 +1,6 @@
-FROM debian:wheezy
+FROM debian:jessie
 MAINTAINER Adrian Dvergsdal [atmoz.net]
 
-# Install OpenSSH
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y install openssh-server && \
     rm -rf /var/lib/apt/lists/*
@@ -9,9 +8,9 @@ RUN apt-get update && \
 # sshd needs this directory to run
 RUN mkdir -p /var/run/sshd
 
-# Copy configuration and entrypoint script
 COPY sshd_config /etc/ssh/sshd_config
 COPY entrypoint /
+COPY README.md /
 
 EXPOSE 22
 

entrypoint

@@ -1,17 +1,32 @@
 #!/bin/bash
 
-for users in "$@"; do
-    IFS=':' read -a data <<< "$users"
-    user="${data[0]}"
-    pass="${data[1]}"
+function printHelp() {
+    echo "Syntax: user:pass[:e][:[uid][:gid]]..."
+    echo "Use --readme for information and examples."
+}
 
-    if [ "${data[2]}" == "e" ]; then
+function printReadme() {
+    cat /README.md
+}
+
+function createUser() {
+    IFS=':' read -a param <<< $@
+    user="${param[0]}"
+    pass="${param[1]}"
+
+    if [ -z "$user" -o -z "$pass" ]; then
+        echo "You must at least provide a username and a password."
+        printHelp
+        exit 1
+    fi
+
+    if [ "${param[2]}" == "e" ]; then
         chpasswdOptions="-e"
-        uid="${data[3]}"
-        gid="${data[4]}"
+        uid="${param[3]}"
+        gid="${param[4]}"
     else
-        uid="${data[2]}"
-        gid="${data[3]}"
+        uid="${param[2]}"
+        gid="${param[3]}"
     fi
 
     useraddOptions="--create-home --no-user-group"
@@ -39,6 +54,20 @@ for users in "$@"; do
     cat /home/$user/.ssh/keys/* >> /home/$user/.ssh/authorized_keys
     chown $user /home/$user/.ssh/authorized_keys
     chmod 600 /home/$user/.ssh/authorized_keys
+}
+
+if [[ -z $1 || $1 =~ ^--help$|^-h$ ]]; then
+    printHelp
+    exit 0
+fi
+
+if [ "$1" == "--readme" ]; then
+    printReadme
+    exit 0
+fi
+
+for user in "$@"; do
+    createUser $user
 done
 
 exec /usr/sbin/sshd -D