openbts-umts: fix apt: use archive.debian.org

This helps to get access to Debian 8 repositories in 2024.

Change-Id: Ia869476feeb67e2b3313b5d75ca01eaff41597ba
---
M openbts-umts/Dockerfile
A openbts-umts/sources.list
2 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/openbts-umts/Dockerfile b/openbts-umts/Dockerfile
index 0fee2ff..4c357c6 100644
--- a/openbts-umts/Dockerfile
+++ b/openbts-umts/Dockerfile
@@ -4,6 +4,9 @@
 FROM	debian:jessie
 
 
+# https://unix.stackexchange.com/a/755022
+COPY	sources.list /etc/apt/sources.list
+
 RUN	apt-get update && \
 	apt-get install -y --no-install-recommends \
 			   --no-install-suggests \
diff --git a/openbts-umts/sources.list b/openbts-umts/sources.list
new file mode 100644
index 0000000..2908463
--- /dev/null
+++ b/openbts-umts/sources.list
@@ -0,0 +1,4 @@
+# https://unix.stackexchange.com/a/755022
+# Keys Expired But I ~~Want~~ Need To Hold On To The Past
+deb [trusted=yes] http://archive.debian.org/debian jessie main
+deb [trusted=yes] http://archive.debian.org/debian-security jessie/updates main

