add support for creation of user/groups

start.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -ex
+
 mkdir -p /run/sshd
 
 if [ -n "$ROOT_AUTHORIZED_KEYS" ]; then
@@ -10,4 +12,37 @@ if [ -n "$ROOT_AUTHORIZED_KEYS" ]; then
     fi
 fi
 
+if [ -z "$BASE_DIR" ]; then
+    BASE_DIR="/home"
+fi
+
+if [ ! -d "$BASE_DIR" ]; then
+    echo "BASE_DIR $BASE_DIR does not exist, creating..."
+    mkdir -p $BASE_DIR
+fi
+
+# GROUPADD="group1:1000;group2:1001;group3:1002"
+while [ "$GROUPADD" != "$i" ] ;do
+    i=${GROUPADD%%;*}
+    GROUPADD="${GROUPADD#$i;}"
+
+    GROUP_NAME=${i%%:*}
+    GROUP_GID="${i#$GROUP_NAME:}"
+
+    groupadd --gid "$GROUP_GID" "$GROUP_NAME"
+done
+
+# USERADD="user1:1000:1000;user2:1001:1000;user3:1002:1002"
+while [ "$USERADD" != "$i" ] ;do
+    i=${USERADD%%;*}
+    USERADD="${USERADD#$i;}"
+
+    USER_NAME=${i%%:*}
+    UID_GID="${i#$USER_NAME:}"
+    USER_UID="${UID_GID%%:*}"
+    USER_GID="${UID_GID#$USER_UID:}"
+
+    useradd --home-dir "$BASE_DIR/$USER_NAME" --uid "$USER_UID" --gid "$USER_GID" "$USER_NAME"
+done
+
 exec /usr/sbin/sshd -D -e