Defined CMD in Dockerfile; ENTRYPOINT now supports user-provided commands

.gitignore

@@ -2,3 +2,4 @@
 build.sh
 deploy.sh
 data
+compose-test.yml

Dockerfile

@@ -36,4 +36,6 @@ RUN set -xe && \
 ADD rootfs /
 
 ENTRYPOINT ["/entrypoint.sh"]
-#CMD ["/usr/sbin/dhcpd -4 -f -d --no-pid -cf /etc/dhcp/dhcpd.conf -lf /etc/dhcp/dhcpd.leases -user dhcpd -group dhcpd"]
+CMD ["/usr/sbin/dhcpd", "-4", "-f", "-d", "--no-pid", "-cf", "/data/dhcpd4.conf", "-lf", "/data/dhcpd4.leases", "-user", "dhcpd", "-group", "dhcpd"]
+
+

README.md

@@ -35,15 +35,22 @@ services:
     restart: unless-stopped
 ```
 ## Changelog
+v13.2.443p1-8-1 - 02.01.2026
+- Defined CMD in Dockerfile; ENTRYPOINT now supports user-provided commands
+
 v13.2.443p1-8 - 31.12.2025
 - Debian v.13.2
 - isc-dhcp-server v.4.4.3-P1-8
+
 v13.2.443p12 - 31.12.2025
 - Debian v. 13.2
+
 v.2.0.1 - 08.10.2025
 - Set env for isc-dhcp-server version in Dockerfile.
+
 v2.0.0 - 09.09.2025
 - Debian v.13.1
+
 v1.0.0 - 25.06.2025
 - Debian v.12.11
 - isc-dhcp-server v.4.4.3-P1-2

rootfs/entrypoint.sh

@@ -39,41 +39,69 @@ function _main {
  gid=$(id -g dhcpd)
  chown -R dhcpd: "/data/dhcpd4.leases" "/data/dhcpd6.leases"
 
- export CMDv4="/usr/sbin/dhcpd -4 -f -d --no-pid -cf /data/dhcpd4.conf -lf /data/dhcpd4.leases -user dhcpd -group dhcpd"
+ #export CMDv4="/usr/sbin/dhcpd -4 -f -d --no-pid -cf /data/dhcpd4.conf -lf /data/dhcpd4.leases -user dhcpd -group dhcpd"
  export CMDv6="/usr/sbin/dhcpd -6 -f -d --no-pid -cf /data/dhcpd6.conf -lf /data/dhcpd6.leases -user dhcpd -group dhcpd"
 
- [ "$DHCP4" = "1" ] && export CMD=$CMDv4
- if [ "$DHCP6" = "1" ]; then
-  [ -z "$CMD" ] && export CMD=$CMDv6 || $CMDv6 &
- fi
 chown -R dhcpd: "/data"
 }
 
-function custom_bashrc {
+custom_bashrc() {
-echo '
+cat <<'EOF'
 export LS_OPTIONS="--color=auto"
-alias "ls=ls $LS_OPTIONS"
+alias ls='ls $LS_OPTIONS'
-alias "ll=ls $LS_OPTIONS -la"
+alias ll='ls $LS_OPTIONS -la'
-alias "l=ls $LS_OPTIONS -lA"
+alias l='ls $LS_OPTIONS -lA'
-'
+
+# prompt SOLO per shell interattive
+if [[ $- == *i* ]]; then
+  if [ "$(id -u)" -eq 0 ]; then
+    PS1="\[\e[35m\][\[\e[31m\]\u\[\e[36m\]@\[\e[32m\]\h\[\e[90m\] \w\[\e[35m\]]\[\e[0m\]# "
+  else
+    PS1="\[\e[35m\][\[\e[33m\]\u\[\e[36m\]@\[\e[32m\]\h\[\e[90m\] \w\[\e[35m\]]\[\e[0m\]$ "
+  fi
+  export PS1
+fi
+EOF
 }
 
-function _bashrc {
+setup_bashrc() {
-echo "-----------------------------------------"
+  for home in /root /home/*; do
-echo " .bashrc file setup..."
+    [ -d "$home" ] || continue
-echo "-----------------------------------------"
+    bashrc="$home/.bashrc"
-custom_bashrc | tee /root/.bashrc
+
-echo 'export PS1="\[\e[35m\][\[\e[31m\]\u\[\e[36m\]@\[\e[32m\]\h\[\e[90m\] \w\[\e[35m\]]\[\e[0m\]# "' >> /root/.bashrc
+    # crea se manca
-for i in $(ls /home); do echo 'export PS1="\[\e[35m\][\[\e[33m\]\u\[\e[36m\]@\[\e[32m\]\h\[\e[90m\] \w\[\e[35m\]]\[\e[0m\]$ "' >> /home/${i}/.bashrc; done
+    [ -f "$bashrc" ] || touch "$bashrc"
+
+    # evita duplicazioni
+    grep -q '### CUSTOM BASHRC ###' "$bashrc" && continue
+
+    {
+      echo ''
+      echo '### CUSTOM BASHRC ###'
+      custom_bashrc
+    } >> "$bashrc"
+  done
 }
 
-#_dirs
 _main
-_bashrc
+setup_bashrc
 
-#CMD="$@"
+# If any arguments were passed (i.e., CMD from Dockerfile), store them in CMD
-[ -z "$CMD" ] && export CMD="supervisord -c /etc/supervisor/supervisord.conf"
+[ "$#" -gt 0 ] && CMD="$@"
 
-exec $CMD
+[ "$DHCP4" = "0" ] && export CMD=""
+if [ "$DHCP6" = "1" ]; then
+ [ -z "$CMD" ] && export CMD=$CMDv6 || $CMDv6 &
+fi
 
-exit $?
+[ -z "$CMD" ] && echo "Warning! DHCP not selected." && exit
+
+# Ensure terminal state is restored and cursor is visible when the container exits
+trap 'stty sane 2>/dev/null; tput cnorm 2>/dev/null' EXIT
+
+# print cmd that will be executed
+echo "Starting: $*" >&2
+
+# Split CMD into proper arguments and execute
+set -- $CMD
+exec "$@"