SRE-Docker Compose for CRON job

We had a task to Create a docker file with ubuntu image

1. Create a print.sh file which has code to print date and time
2. Write a cron file named "hello-cron" which includes the print.sh to run for every 1 min.
3. The docker image should have a CRON job to print date and time every 1 min

We created a print.sh file via vi command and in it given as

#!/bin/sh -l
time=$(date)
echo "::set-output name=time::$time"

After which we had executed -

chmod +x print.sh

then tried as -

* * * * * /home/scrapbook/tutorial

Not sure where we went wrong, please guide us.

 

You do not say in what way is which command not working.

https://www.howtoforge.com/communit...or-a-first-time-linux-user.83782/#post-399369

 

Hi,

I had successfully created print.sh but cannot able to run a cron file with print.sh with a min. Need help for it.

 

I am assuming you are using Ubuntu 20.04.
Put listings and command outputs you post in CODE tags. See https://www.howtoforge.com/community/threads/please-read-before-posting.58408/
What shows command

Code:

crontab -l

What shows command

Code:

ls -lh print.sh

Put your print.sh file in /tmp directory for testing. Then use command

Code:

crontab -e

to add line

Code:

* * * * * /tmp/print.sh

Do note that unless you have set up cron to e-mail the results to you, your print.sh does nothing visible. I would modify print.sh with adding line

Code:

echo $(date) >> /tmp/foobar.txt

and then see what happens with command

Code:

tail -f /tmp/foobar.txt

 

We execute above command -

$
$ crontab -l
no crontab for root
$ ls
$ pwd
/home/scrapbook/tutorial
$

We need to perform -

Create a docker file with ubuntu image

• Create a print.sh file which has code to print date and time

• Write a cron file named "hello-cron" which includes the print.sh to run for every 1 min
  
  
• The docker image should have a CRON job to print date and time every 1 min
  

 

plz help us

 

What will be command in docker ?

 

Do you have the docker file with ubuntu image created? Does it work?
If yes, do the commands I gave in #4 work?

 

Do you have the docker file with ubuntu image created? Does it work?
If yes, do the commands I gave in #4 work?

Does not worked ...

We need to perform -

Create a docker file with ubuntu image

• Create a print.sh file which has code to print date and time

• Write a cron file named "hello-cron" which includes the print.sh to run for every 1 min
• The docker image should have a CRON job to print date and time every 1 min

 

When I use Internet Search Engines with

Code:

Create a docker file with ubuntu image

the first item it finds is https://www.howtoforge.com/tutorial/how-to-create-docker-images-with-dockerfile/

 

It not resolved our issue