PRO TIP - Step by Step guide to set (much the same as) Host Groups in Fargate

[DanielS]

If you want to monitor AWS Fargate with Dynatrace and deploy OneAgent you have three options according to your scenario:

• Automatic Injection
• Build-time Injection
• Runtime Injection

As you may notice the parameter:

--set-host-group=my_host_group

 is not supported in Fargate but for many of us this is a gruesome headache because we use hosts groups for many purposes like assigning membership to MZ's among others.

But the following guide is a step by step solution to resolve this using a workaround.

1. No matter what option you selected to create the container please add an Enviroment Variable in your dockerfile.

ENV DT_CUSTOM_PROP "Host_Group=AWS-EKS-FARGATE-SWITCH"​

example:

• As you see in STEP 1 after ENV use DT_CUSTOM_PROP
• And finally set your Environment Metadata "Host_Group=my_host_group" in my example "HOST_GROUP=AWS-EKS-FARGATE-SWITCH"
• After this please deploy your Fargate container.
• If everything goes as expected you will be able to see the Environment custom metadata on your process group
  
  
  
• Well so far so good, now it's time to add an autotagging rule as follows:
  

  Please pay attention to the options on the numbers 1 to 8.

• Well after this your Host(Container),Process Group, Process Group Instances and Services will have the tag from the rule of your (much the same as)"Host_Group" Environment custom metadata.
• Feel free to add these entities to your MZ.

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My main inspiration for writing this PRO TIP is to create a guide based on ideas I saw in another post. This is the guide I wish I had found in the first place for this topic. Using that solution as a base I had to sort and test ideas and adapt to the new interface, I want to thank to @abraham_villega original answer on that post. and to my fellow Jason @ct_27 for contacting me, you were the trigger to start writing.

[ChadTurner]

Bookmarked for sure! Thanks @DanielS for sharing this 🙂

[Kenny_Gillette]

also, can they use the native AWS HostGroup tag too?

[tluong]

I have spent the last few days on this config alone. Thank you so much for posting this!!

[AurelienGravier]

Thank you @DanielS, You totally brightened my day!
See U soon !