Metrics API to get container groups

[stephenje]

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?

[paolo_fumanelli]

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

BR

[stephenje]

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?

[DanielS]

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

[paolo_fumanelli · Accepted solution]

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

[stephenje]

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

[stephenje]

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

[DanielS]

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

[stephenje]

Thanks @DanielS