Add local cron-jobs container for testing cron things

compose.override.yaml

@@ -56,6 +56,18 @@ services:
       # postgres data anywhere).
       - ./docker/ol-db-init.sh:/docker-entrypoint-initdb.d/ol-db-init.sh
 
+  cron-jobs:
+    build:
+      context: .
+      dockerfile: docker/Dockerfile.oldev
+    environment:
+      - CRONTAB_FILE=/etc/cron.d/cron.local
+    volumes:
+      - ./docker/cron.local:/etc/cron.d/cron.local:ro
+      # Persistent volume mount for installed git submodules
+      - ol-vendor:/openlibrary/vendor
+      - .:/openlibrary
+
   covers:
     build:
       context: .

compose.production.yaml

@@ -123,19 +123,13 @@ services:
   cron-jobs:
     profiles: ["ol-home0"]
     image: "${OLIMAGE:-openlibrary/olbase:latest}"
-    hostname: "$HOSTNAME"
-    user: root
-    command: docker/ol-cron-start.sh
     restart: unless-stopped
     env_file:
       - ../olsystem/etc/cron-jobs.env
     volumes:
       - ../olsystem/etc/cron.d/openlibrary.ol_home0:/etc/cron.d/openlibrary.ol_home0:ro
       - ../olsystem:/olsystem
       - /1/var/tmp:/1/var/tmp
-    networks:
-      - webnet
-      - dbnet
 
   infobase:
     profiles: ["ol-home0"]

compose.yaml

@@ -64,6 +64,15 @@ services:
     networks:
       - webnet
 
+  cron-jobs:
+    image: "${OLIMAGE:-oldev:latest}"
+    hostname: "${HOSTNAME:-$HOST}"
+    user: root
+    command: docker/ol-cron-start.sh
+    networks:
+      - webnet
+      - dbnet
+
   covers:
     image: "${OLIMAGE:-oldev:latest}"
     environment:

docker/cron.local

@@ -0,0 +1,6 @@
+# Cron files apparently don't get the normal PATH the rest
+# of the OS gets, so force set it here otherwise python
+# won't be findable.
+PATH=/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+* * * * * su openlibrary -c "echo hello" > /proc/1/fd/1 2>/proc/1/fd/2

docker/ol-cron-start.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-crontab /etc/cron.d/openlibrary.ol_home0
+crontab "$CRONTAB_FILE"
 cron -f -L2