adjust install scripts; not ready for podman yet

docker.bind.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=BIND9 Container
+After=docker.service
+Requires=docker.service
+
+[Service]
+TimeoutStartSec=0
+Restart=always
+ExecStartPre=-/usr/bin/docker stop bind9
+ExecStartPre=-/usr/bin/docker rm bind9
+# note: this container is actually provding DNS service, so when that is missing, the pull fails.
+# ExecStartPre=/usr/bin/docker pull docker.io/internetsystemsconsortium/bind9:9.18
+ExecStart=/etc/bind/run_bind_container.sh
+
+[Install]
+WantedBy=multi-user.target