docker + cronie

docker + cronie.md

docker + cronie

There's no output unless any debug flag is set. The debug flags are:

• ext - make other flags more verbose
• sch - scheduling
• proc - process control
• pars - parsing
• load - database loading
• misc
• test - test mode: don't execute any commands
• bit - make it more verbose while not enabling any other flags?

docker-compose.yml:

services:
  cronie:
    build: .
    command: crond -fx bit

Dockerfile:

FROM alpine:3.17
COPY crontab .
RUN set -x \
    && apk add --no-cache cronie shadow \
    && useradd -m app \
    && crontab -u app crontab

crontab:

* * * * * date >/dev/null 2>&1