How can I configure cron startup on a new image without harming the Apache service?

campos

12/27/22, 6:17 PM

I'm creating a new image with cron which is based on the php:7.3-apache-buster image.

The build of the image goes without a hitch. The container is also created with a status of Up. However, in the browser when I type http://localhost:8082 no Apache page is shown. The Apache service is inherited from the php:7.3-apache-buster image.

In my Dockerfile the last line is CMD cron && tail -f /var/log/cron.log. I believe it is this line that generates the problem.

If I enter the container with the command docker exec -it cont-mysite-01 /bin/bash and run the command service apache2 start, Apache starts normally.

What am I not understanding?

How can I build an image where the Apache from the base image and the Cron from the new image work together?

My references:

https://github.com/Ekito/docker-cron/blob/master/Dockerfile

https://hub.docker.com/_/php

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campos

1/1/23, 7:57 PM

I solved the problem as follows:

I removed the line CMD cron && tail -f /var/log/cron.log from the Dockerfile.

Then I added the line RUN sed -i 's/^exec /service cron start\n\nexec /' /usr/local/bin/apache2-foreground.

After creating the container with the image run the commands to check Apache2 and Cron:

docker exec -it cont-mysite-01 service apache2 status

docker exec -it cont-mysite-01 service cron status

Link that helped me:

http://www.idein.it/joomla/14-docker-php-apache-with-crontab

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Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How can I configure cron startup on a new image without harming the Apache service?

TH: ฉันจะกำหนดค่าการเริ่มต้น cron บนอิมเมจใหม่โดยไม่ทำให้บริการ Apache เสียหายได้อย่างไร

RO: Cum pot configura pornirea cron pe o imagine nouă fără a afecta serviciul Apache?

RU: Как настроить запуск cron на новом образе, не нанося вреда службе Apache?

VI: Làm cách nào tôi có thể định cấu hình khởi động cron trên một hình ảnh mới mà không làm hại dịch vụ Apache?

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