topic Re: Metrics API to get container groups in Dynatrace API

Metrics API to get container groups

stephenje — Wed, 29 Mar 2023 12:14:24 GMT

I am looking to get the CPU and memory from a particular container instance...

I can find the container details using

builtin:kubernetes.containers

and filter for the one I need

I ideally want to run

builtin:containers.cpu.usageMilliCores but in order to get the right container I need the container_group_instance value

I am not sure how to find out this information, can anyone assist?

Re: Metrics API to get container groups

paolo_fumanelli — Wed, 29 Mar 2023 13:25:34 GMT

Not sure what you want to get, builtin:containers.cpu.usageMilliCores also accepts container as filter condition. Can you please further explain your need?

Re: Metrics API to get container groups

stephenje — Wed, 29 Mar 2023 14:44:40 GMT

Hey thanks for the response...... we have multiple containers with the same name as they are in different environments.....

So I am using this query

builtin:containers.cpu.usageMilliCores:filter(eq(Container,vehicle-ohs)):names:parents

this gives me multiple results....

But I only want to use the container returned with this query

builtin:kubernetes.containers:filter(eq("k8s.deploymentconfig.name","vehicle-ohs"),eq("k8s.namespace.name","vrm-e2e"),eq("container_state","running")):names:parents

But I cannot find out which container group this is in?

Re: Metrics API to get container groups

DanielS — Wed, 29 Mar 2023 16:45:22 GMT

Hi@stephenje you can tag the container on creation to be able to identify it.

Re: Metrics API to get container groups

stephenje — Thu, 30 Mar 2023 06:06:00 GMT

Thanks @DanielS can those tags be used in a filter?

Re: Metrics API to get container groups

paolo_fumanelli — Thu, 30 Mar 2023 06:41:32 GMT

Hi, if you want to filter only a single container of a specific namespace you can leverage on relationships like this:

builtin:containers.cpu.usageMilliCores
:filter(in("dt.entity.container_group_instance", entitySelector("type(~"CONTAINER_GROUP_INSTANCE~"),fromRelationships.isCgiOfNamespace(type(CLOUD_APPLICATION_NAMESPACE),entityName.equals(<NAMESPACE_NAME>))")))
:splitBy():sort(value(auto,descending)):limit(20)

or by referencing the namespace by id

builtin:containers.cpu.usageMilliCores
:filter(in("dt.entity.container_group_instance", entitySelector("type(~"CONTAINER_GROUP_INSTANCE~"),fromRelationships.isCgiOfNamespace(type(CLOUD_APPLICATION_NAMESPACE),entityId(<NAMESPACE_entityId>))")))
:splitBy():sort(value(auto,descending)):limit(20)

In general usage of relationships when dealing with k8s entities is very useful.

See:

Monitored entities API - GET all entity types | Dynatrace Docs

Environment API v2 - Entity selector | Dynatrace Docs

Hope this helps

Paolo

Re: Metrics API to get container groups

stephenje — Thu, 30 Mar 2023 06:57:26 GMT

Awesome thanks @paolo_fumanelli that has worked...... mucg appreciated

Re: Metrics API to get container groups

DanielS — Thu, 30 Mar 2023 11:48:49 GMT

Yes, you can reference it by using, type("CONTAINER_GROUP_INSTANCE~"),tag("[context]key1:value-1","key2:value-2","value-3")

Re: Metrics API to get container groups

stephenje — Thu, 30 Mar 2023 12:21:36 GMT

Thanks @DanielS