created php variant so cron scripts can be php if desired

Dockerfile

@@ -2,7 +2,10 @@ FROM alpine
 
 RUN mkdir /tock
 WORKDIR /tock
-COPY . /tock/
+COPY ./crons /tock/
+COPY ./init.sh /tock/
+COPY ./license.txt /tock/
+COPY ./readme.md /tock/
 
 RUN mkdir -p /tmp/tock
 
@@ -11,5 +14,5 @@ RUN touch /var/log/cron.log
 HEALTHCHECK --interval=60s --retries=3 --start-interval=1s --start-period=10s --timeout=5s \
     CMD ps | grep -v 'grep' | grep 'cron' || exit 1
 
-ENTRYPOINT /tock/init.sh
+ENTRYPOINT ["/tock/init.sh"]
 

Dockerfile.php

@@ -0,0 +1,19 @@
+# vim: set ft=dockerfile :
+FROM php:cli-alpine
+
+RUN mkdir /tock
+WORKDIR /tock
+COPY ./crons-php /tock/crons
+COPY ./init.sh /tock/
+COPY ./license.txt /tock/
+COPY ./readme.md /tock/
+
+RUN mkdir -p /tmp/tock
+
+RUN touch /var/log/cron.log
+
+HEALTHCHECK --interval=60s --retries=3 --start-interval=1s --start-period=10s --timeout=5s \
+    CMD ps | grep -v 'grep' | grep 'cron' || exit 1
+
+ENTRYPOINT ["/tock/init.sh"]
+

crons-php/pulse

@@ -0,0 +1,3 @@
+#m  h   dom mon dow command
+*   *   *   *   *   php --run 'echo date("Y-m-d H:i:s\n");'
+