Skip to content

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.
  • Labs icon Lab
  • A Cloud Guru
Google Cloud Platform icon

Using Docker Secrets to Manage Sensitive Data

In order to secure a MySQL database, we’ve decided to redeploy the container it sits in as a Swarm service, using secrets. We'll use OpenSSL to generate secure passwords for both the MySQL users `root` and `user`. Then, we'll save them to separate files. Next, we'll create secrets for these passwords and finally create the MySQL service using these secrets.

Google Cloud Platform icon

Path Info

Clock icon Advanced
Clock icon 1h 0m
Clock icon Apr 03, 2019

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.

Table of Contents

  1. Challenge

    Create Secrets

    Note: Please allow the lab extra time to fully spin up.

    Create the MySQL root password:

    openssl rand -base64 20 > mysql_root_password.txt
    docker secret create mysql_root_password mysql_root_password.txt

    Create a MySQL user password:

    openssl rand -base64 20 > mysql_password.txt
    docker secret create mysql_password mysql_password.txt
  2. Challenge

    Create an Overlay Network for the Service

    Create an overlay network:

    docker network create -d overlay mysql_private
  3. Challenge

    Create the MySQL Service

    Create a MySQL service:

    docker service create 
         --name mysql_secrets 
         --replicas 1 
         --network mysql_private 
         --mount type=volume,destination=/var/lib/mysql 
         --secret mysql_root_password 
         --secret mysql_password 
         -e MYSQL_ROOT_PASSWORD_FILE="/run/secrets/mysql_root_password" 
         -e MYSQL_PASSWORD_FILE="/run/secrets/mysql_password" 
         -e MYSQL_USER="myUser" 
         -e MYSQL_DATABASE="myDB" 

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.

Start learning by doing today

View Plans