updated cron infrastructure

Dockerfile

@@ -81,7 +81,7 @@ RUN $HOME/install_ldm_root_actions.sh
 # crontab for scouring
 ###
 
-COPY crontab /var/spool/cron/ldm
+COPY cron/ldm /var/spool/cron/ldm
 
 RUN chown ldm:ldm /var/spool/cron/ldm
 

README.md

@@ -38,11 +38,7 @@ In the `etc` directory, you will have to do the usual LDM configuration by editi
 
 #### crontab
 
-The [recommended LDM crontab entries](http://www.unidata.ucar.edu/software/ldm/ldm-current/basics/configuring.html#cron) have been installed inside the container. You can modify the LDM crontab by editing the `crontab` file. This `crontab` file is mounted outside the container with `docker-compose.yml`. For the new crontab to take effect, you will have to restart the container with
-
-    docker restart <container ID>
-
-Where the container ID is obtained with `docker ps`. See below for more information about running the LDM Docker container.
+The [recommended LDM crontab entries](http://www.unidata.ucar.edu/software/ldm/ldm-current/basics/configuring.html#cron) have been installed inside the container. You can modify the LDM crontab by editing the `cron/ldm` file. This  file can be mounted over `/var/spool/cron/ldm` with `docker-compose.yml`. See the `docker-compose.yml` file herein for an example.
 
 ### Upstream Data Feed from Unidata or Elsewhere
 

crontab → cron/ldm

@@ -13,4 +13,4 @@ MAILTO=""
 0 0 * * 0 bash -l -c 'ldmadmin newmetrics'
 
 # check the LDM
-0,15,30,45 * * * * bash -l -c 'ldmadmin check >/dev/null' 
+0,15,30,45 * * * * bash -l -c 'ldmadmin check >/dev/null'

docker-compose.yml

@@ -11,6 +11,7 @@ ldm:
     - ./data/:/home/ldm/var/data/
     - ./data/:/home/ldm/var/queues/
     - ./logs/:/home/ldm/var/logs/
+    - ./cron/:/var/spool/cron/
   ports:
     - "388:388"
   ulimits: