added basic expect script to generate seed-phrase

roles/apps/files/clightning/entrypoint.sh

@@ -28,6 +28,17 @@ if ! id clightning > /dev/null 2>&1; then
   chown -R $USERID:$GROUPID /home/clightning
 fi
 
+# Test if hsm_secret exist, if not create with random mnemonic
+
+if [ -s /root/.lightning/bitcoin/hsm_secret ];
+then 
+  echo "hsm_secret exist, exiting..."
+else
+  seed=$(python3 -c "from mnemonic import Mnemonic;m=Mnemonic('english');print(m.generate(128))")
+  echo "Seed Phrase: $seed" > /root/.lightning/bitcoin/seed_phrase.txt
+  expect /root/.lightning/script.exp "$seed"
+fi
+
 if [ $(echo "$1" | cut -c1) = "-" ]; then
   echo "$0: assuming arguments for lightningd"
 

roles/apps/files/clightning/script.exp

@@ -0,0 +1,57 @@
+#!/usr/bin/expect -f
+#
+# This Expect script was generated by autoexpect on Tue Feb 20 15:56:50 2024
+# Expect and autoexpect were both written by Don Libes, NIST.
+#
+# Note that autoexpect does not guarantee a working script.  It
+# necessarily has to guess about certain things.  Two reasons a script
+# might fail are:
+#
+# 1) timing - A surprising number of programs (rn, ksh, zsh, telnet,
+# etc.) and devices discard or ignore keystrokes that arrive "too
+# quickly" after prompts.  If you find your new script hanging up at
+# one spot, try adding a short sleep just before the previous send.
+# Setting "force_conservative" to 1 (see below) makes Expect do this
+# automatically - pausing briefly before sending each character.  This
+# pacifies every program I know of.  The -c flag makes the script do
+# this in the first place.  The -C flag allows you to define a
+# character to toggle this mode off and on.
+
+set force_conservative 0  ;# set to 1 to force conservative mode even if
+			  ;# script wasn't run conservatively originally
+if {$force_conservative} {
+	set send_slow {1 .1}
+	proc send {ignore arg} {
+		sleep .1
+		exp_send -s -- $arg
+	}
+}
+
+#
+# 2) differing output - Some programs produce different output each time
+# they run.  The "date" command is an obvious example.  Another is
+# ftp, if it produces throughput statistics at the end of a file
+# transfer.  If this causes a problem, delete these patterns or replace
+# them with wildcards.  An alternative is to use the -p flag (for
+# "prompt") which makes Expect only look for the last line of output
+# (i.e., the prompt).  The -P flag allows you to define a character to
+# toggle this mode off and on.
+#
+# Read the man page for more info.
+#
+# -Don
+set WORDS [lindex $argv 0]
+
+set timeout -1
+spawn lightning-hsmtool generatehsm ./test.hsm
+match_max 100000
+expect "*"
+expect "*"
+send -- "0\r"
+expect -exact "Introduce your BIP39 word list separated by space (at least 12 words):\r
+"
+send -- "$WORDS\r"
+expect "*"
+send -- "\r"
+expect eof
+