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Getting Started with EdgeX Foundry Hands-On Lab 
2/21/18, v1  
Contents 
Lab 1 – Getting and running EdgeX Foundry ................................................................................................ 2 
Prerequisite ............................................................................................................................................... 2 
A.  Download the EdgeX Foundry Docker Compose file ........................................................................ 2 
B.  Pull all the EdgeX Foundry Docker images ........................................................................................ 3 
C.  Start EdgeX ........................................................................................................................................ 4 
D.  Test EdgeX ......................................................................................................................................... 4 
Finished Early? .............................................................................................................................................. 5 
Bonus1. Check out a micro service log ..................................................................................................... 5 
Bonus2. Replace a Go Micro Service with a Java Micro Service ............................................................... 6 
Bonus3.  Checking Docker Stats ................................................................................................................ 7 
Bonus4. Checking out Mongo ................................................................................................................... 7 
Lab 2 – Exploring EdgeX Core Services .......................................................................................................... 9 
A.  Explore readings and events through Core Data .............................................................................. 9 
B.  Understanding Value Descriptors in Core Data .............................................................................. 10 
C.  Looking at the relationship between Devices, Device Profiles and Device Services in Metadata .. 11 
D.  Re-exploring Value Descriptors through Metadata ........................................................................ 13 
E.  Executing actuation through the Command micro service ............................................................ 13 
F.  Exploring micro service status through Consul (the Config/Registry micro service) ...................... 15 
G.  Micro Service configuration seen through Consul .......................................................................... 16 
Lab 3 – Exploring EdgeX Device Services .................................................................................................... 18 
A.  Call on the Device Service API ......................................................................................................... 18 
B.  Look at the Virtual Device configuration ........................................................................................ 19 
C.  Exploring the DS SDK ....................................................................................................................... 21 
Lab 4 – Exploring EdgeX Export Services ..................................................................................................... 22 
A.  Use Export Client to register a client .............................................................................................. 22 
B.  See Data flow through distro .......................................................................................................... 24 
 

Getting Started with EdgeX Foundry Hands-On Lab

2/21/18, v1

C. Start EdgeX

1. In the terminal (Linux, Mac) or Docker Terminal, start each EdgeX Docker Container using the

docker-compose up command. The table below specifies the exact commands to start each

container and the amount of time you should wait before starting the next container. There are

a few micro services in EdgeX that are dependent on the availability of another micro service. If

you fail to wait the allotted time, a micro service may not start correctly because its dependent

is not ready.

EdgeX Container start command to execute

Time to wait before

starting the next

container

Micro Service

docker-compose up -d volume

2 sec

File system

docker-compose up -d config-seed

2 sec

Consul

docker-compose up -d mongo

10 sec

MongoDB

docker-compose up -d logging

60 sec

Support Logging

docker-compose up -d notifications

30 sec

Support Notifications

docker-compose up -d metadata

2 sec

Core Metadata

docker-compose up -d data

2 sec

Core Data

docker-compose up -d command

2 sec

Core Command

docker-compose up -d export-client

2 sec

Export Client

docker-compose up -d export-distro

2 sec

Export Distro

docker-compose up -d device-virtual

60 sec

Virtual Device Service

You’ll learn later in class what each of these containers do.

2. Give the last container (device-virtual) about 60 seconds to start. Then check the Docker

process status to see that all of your EdgeX containers are up and running. The command to get

the process status is docker-compose ps as shown below. Check the “State” column to see that

all your containers are up and running.

D. Test EdgeX

In the next set of labs, you will explore all of the micro services and inspect the APIs and functionality

surrounding each one. For now, you are going to make two simple tests to insure everything is working

properly.

1. EdgeX uses an open source registry service called Consul. All the micro services are expected to

services to check that they are still operational. Consul has a graphical user interface we can use

to see if the micro services are all running. Open a browser and enter the following URL –

http://<docker host address>:8500. If everything is up and running, your browser screen should

have a display that looks similar to that below.

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