How to pass values to docker file

Question

Here is my docker file

FROM ubuntu:16.04        RUN apt-get update && apt-get install -y wget && \        wget https://dev.mysql.com/get/Downloads/MySQL-Router/mysql-router_2.1.6-1ubuntu16.04_amd64.deb && \        apt-get install -y ./mysql-router_2.1.6-1ubuntu16.04_amd64.deb && \        apt-get update && \        apt-get install mysql-router && \        useradd -ms /bin/bash router    USER router    WORKDIR /home/router    RUN mysqlrouter --bootstrap [email protected]:3306 -d myrouter        CMD ["myrouter/start.sh"]

This is Docker interactive Output:

Sending build context to Docker daemon  2.048kB        Step 1/6 : FROM ubuntu:16.04         ---> f975c5035748        Step 2/6 : RUN apt-get update && apt-get install -y wget &&     wget https://dev.mysql.com/get/Downloads/MySQL-Router/mysql-router_2.1.6-1ubuntu16.04_amd64.deb &&     apt-get install -y ./mysql-router_2.1.6-1ubuntu16.04_amd64.deb &&     apt-get update &&     apt-get install mysql-router &&     useradd -ms /bin/bash router         ---> Using cache         ---> 1bf5a87eb556        Step 3/6 : USER router         ---> Using cache         ---> ccedbc3db924        Step 4/6 : WORKDIR /home/router         ---> Using cache         ---> ab67e9623a09        Step 5/6 : RUN mysqlrouter --bootstrap [email protected]:3306 -d myrouter         ---> Running in 9494d8083fd0        Please enter MySQL password for ic:    Error: Unable to connect to the metadata server: Error connecting to MySQL server at 192.168.1.136:3306: Access denied for user 'ic'@'192.168.1.164' (using password: NO) (1045)    The command '/bin/sh -c mysqlrouter --bootstrap [email protected]:3306 -d myrouter' returned a non-zero code: 1

In Step 5/6 I need to Enter the Password but I don't no How to pass the password in docker file. Any suggestions?

I know you can pass argument to your image with 'docker run' command.Or you can also use env variable which seems an even more common way. — LostReality
– LostReality, Commented Mar 9, 2018 at 11:14

Sujan Kumar Sakthi · Accepted Answer · 2018-03-16 09:45:17Z

Finally, I got the solution. Here I am using the shell script file to pass the password

This is my docker file

FROM ubuntu:16.04 RUN apt-get update && apt-get install -y wget && \ wget https://dev.mysql.com/get/Downloads/MySQL-Router/mysql-router_2.1.6-1ubuntu16.04_amd64.deb && \ apt-get install -y ./mysql-router_2.1.6-1ubuntu16.04_amd64.deb && \ apt-get update && \ apt-get install mysql-router && \ useradd -ms /bin/bash router USER router WORKDIR /home/router COPY script.sh /script.sh RUN /script.sh CMD ["myrouter/start.sh"]

This is my script.sh file

#!/bin/bash mysqlrouter --bootstrap [email protected]:3306 -d myrouter <<< "password"

RUN /script.sh is not required, you already copied your script.sh inside the image

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