From f87291d0f868840a5c07f13aa701413ad3801301 Mon Sep 17 00:00:00 2001
From: thorus90 <mugnipper@gmail.com>
Date: Fri, 30 Sep 2022 00:13:10 +0200
Subject: [PATCH] issue-69 adds an chrony server to samba-dc to provide NTP for
 windows clients

---
 images/samba-dc/Dockerfile    | 3 ++-
 images/samba-dc/chrony.conf   | 8 ++++++++
 images/samba-dc/entrypoint.sh | 1 +
 3 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 images/samba-dc/chrony.conf

diff --git a/images/samba-dc/Dockerfile b/images/samba-dc/Dockerfile
index b97ea6a3..6e6a564b 100644
--- a/images/samba-dc/Dockerfile
+++ b/images/samba-dc/Dockerfile
@@ -28,8 +28,9 @@ ARG SAMBA_VERSION=4.15.7-r0
 
 COPY *.conf.j2 /root/
 COPY entrypoint.sh /usr/local/bin/
+COPY chrony.conf /etc/chrony/
 RUN apk add --update --no-cache krb5 ldb-tools samba-dc=$SAMBA_VERSION tdb \
-      bind bind-libs bind-tools libcrypto1.1 libxml2 tzdata && \
+      bind bind-libs bind-tools libcrypto1.1 libxml2 tzdata chrony && \
     chmod 0755 /usr/local/bin/entrypoint.sh
 
 VOLUME /etc/samba /var/lib/samba
diff --git a/images/samba-dc/chrony.conf b/images/samba-dc/chrony.conf
new file mode 100644
index 00000000..f203185c
--- /dev/null
+++ b/images/samba-dc/chrony.conf
@@ -0,0 +1,8 @@
+pool pool.ntp.org iburst
+initstepslew 10 pool.ntp.org
+driftfile /var/lib/chrony/chrony.drift
+rtcsync
+cmdport 0
+
+allow all
+ntpsigndsocket /var/lib/samba/ntp_signd/socket
\ No newline at end of file
diff --git a/images/samba-dc/entrypoint.sh b/images/samba-dc/entrypoint.sh
index 8f0aa11a..6abd2d6c 100755
--- a/images/samba-dc/entrypoint.sh
+++ b/images/samba-dc/entrypoint.sh
@@ -63,4 +63,5 @@ for file in $(ls -A /etc/samba/conf.d/*.conf); do
 done
 ln -fns /var/lib/samba/private/krb5.conf /etc/
 
+chronyd -4 -d &
 exec samba --model=$MODEL -i </dev/null