Lab
A Cloud Guru

Building Services in Docker

Services are the most basic and straightforward way to run containers using a Docker swarm. They allow you to execute multiple replica containers across all nodes in the Swarm cluster. In this lab, you will have the opportunity to work with Docker services. You will practice scaling services by changing the number of replicas for an existing service. You will also have the opportunity to create a new service and run it in the cluster.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Jun 06, 2019

Challenge

Scale the products-fruit service to 5 replicas.
1. Scale the service.
```
docker service update --replicas 5 products-fruit
```
You can also do it this way (both do the same thing):
```
docker service scale products-fruit=5
```
Challenge

Create the products-vegetables service.
1. Create the products-vegetables service.
```
docker service create --name products-vegetables -p 8081:80 --replicas 3 linuxacademycontent/vegetable-service:1.0.0
```
1. Verify that the service is working.
```
curl localhost:8081
```
You should see some JSON data containing a list of vegetables.

Author

A Cloud Guru

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.