How do you run functions and variables from shell script into docker?

Question

so I am trying to work out what the best way to call this function in my bash script so that is executed in the docker container.

#!/bin/bash

AWS_BUCKET="https://s3-bucket-location.com"
AWS_BUCKET_DEV_FILE="devfile.zip"
AWS_BUCKET_PIC_FILE="WORDPRESSpics.zip"

wordpress_production_S3_download () {
cd /tmp/
wget $AWS_BUCKET/$AWS_BUCKET_PIC_FILE
mv $AWS_BUCKET_PIC_FILE /var/www/html/wp-content/uploads/2017
cd /var/www/html/wp-content/uploads/2017
unzip $AWS_BUCKET_PIC_FILE
rm $AWS_BUCKET_PIC_FILE
chown -R www-data:www-data 12/
}

My thought to run this function in the docker container is something like this

docker exec -ti dockerwordpressmaster_mysql_1 bash -c "wordpress_production_S3_download"

but I get

bash: wordpress_production_S3_download: command not found

I have also tried to subsite the function into the variable i.e

test=$(wordpress_production_S3_download)

docker exec -ti dockerwordpressmaster_mysql_1 bash -c "$test"

but the function "variable" test only executes on the local machine and not in the Docker container like I would like.

Any help with the issue is greatly appreciated

yamenk · Accepted Answer · 2017-12-26 20:01:45Z

2

You need to copy the script file containing the function into the dockerwordpressmaster_mysql_1 container and then execute it.

docker cp wordpress-script.sh dockerwordpressmaster_mysql_1:wordpress-script.js
docker exec -ti dockerwordpressmaster_mysql_1 bash -c "source wordpress-script.sh && wordpress_production_S3_download"

edited Dec 26, 2017 at 20:01

answered Dec 26, 2017 at 15:29

yamenk

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