How to solve the problem of cron executing docker failure

Cron fails to execute docker because exec adds the -it parameter. The solution is to correct "docker exec php-7.2_1 /bin/bash -c 'cd /usr/local/nginx/html/MyProject. ..” That’s it.

The operating environment of this article: ubuntu16.04 system, Docker 20.10.11, Dell G3 computer.

How to solve the problem of cron failing to execute docker?

crontab failed to execute docker exec command:

Original script--> failed

#!/bin/bash
docker exec -it php-7.2_1 /bin/bash -c 'cd /usr/local/nginx/html/MyProject && sh GatherData.sh'

Correction--> Success

#!/bin/bash
docker exec php-7.2_1 /bin/bash -c 'cd /usr/local/nginx/html/MyProject && sh GatherData.sh'

Cause of failure

Adding the -it parameter to exec opens a terminal, and the scheduled task cannot enter any terminal.

Recommended learning: "docker video tutorial"

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