Source cgroup problem with host-metrics

[nslee333]

In our product, we want to include specific cgroups in the host-metrics source.

Here's our vector.toml:

data_dir = "/var/lib/vector/"

[sources.host-metrics]
type = "host_metrics"
scrape_interval_secs = 15
# collectors = ["network", "filesystem"]
collectors = ["cgroups"]
namespace = "host"
# the names of the ethernet devices, e.g. eth0 on many linux systems
network.devices.includes = ["eth0","eth1"]
filesystem.mountpoints.includes = ["/", "/var/log"]
cgroups.groups.includes = ["system.slice/batt-edge.service"


[sinks.console]
inputs = ["host-metrics"]
target = "stdout"
type = "console"
encoding.codec = "json"
encoding.json.pretty = true
healthcheck.enabled = true
buffer.type = "memory"
buffer.max_events = 500
buffer.when_full = "block"

And here's our tree when we run systemctl status

● bendtech-uc2200
    State: degraded
     Jobs: 0 queued
   Failed: 4 units
    Since: Tue 2025-05-06 20:24:44 UTC; 3h 25min ago
   CGroup: /
           ├─user.slice 
           │ └─user-1001.slice 
           │   ├─session-6.scope 
           │   │ ├─6691 /usr/bin/login -f           -h 100.69.50.53 -p
           │   │ └─6700 -bash
           │   ├─session-15.scope 
           │   │ ├─10329 /usr/bin/login -f           -h 100.114.118.11 -p
           │   │ └─10338 -bash
           │   ├─session-12.scope 
           │   │ ├─ 9515 /usr/bin/login -f           -h 100.69.50.53 -p
           │   │ ├─ 9524 -bash
           │   │ ├─12615 systemctl status
           │   │ └─12616 pager
           │   ├─[email protected] 
           │   │ └─init.scope 
           │   │   ├─2625 /lib/systemd/systemd --user
           │   │   └─2626 (sd-pam)
           │   └─session-8.scope 
           │     ├─7349 /usr/bin/login -f           -h 100.69.50.53 -p
           │     └─7358 -bash
           ├─init.scope 
           │ └─1 /sbin/init
           └─system.slice 
             ├─fail2ban.service 
             │ └─1142 /usr/bin/python3 /usr/bin/fail2ban-server -xf start
             ├─ng-modbus-sim.service 
             │ └─1135 /usr/local/bin/ng-modbus-sim 1500 2
             ├─systemd-udevd.service 
             │ └─505 /lib/systemd/systemd-udevd
             ├─batt-edge.service 
             │ └─5120 /opt/batt-edge/current/batt-edge -c /etc/batt-edge/current -d /var/lib/batt-edge

However this is the output:

{
  "name": "cgroup_cpu_usage_seconds_total",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "counter": {
    "value": 5573.426616
  }
}
{
  "name": "cgroup_cpu_user_seconds_total",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "counter": {
    "value": 3201.695018
  }
}
{
  "name": "cgroup_cpu_system_seconds_total",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "counter": {
    "value": 2371.731597
  }
}
{
  "name": "cgroup_memory_anon_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 176799744.0
  }
}
{
  "name": "cgroup_memory_file_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 839798784.0
  }
}
{
  "name": "cgroup_memory_anon_active_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 51769344.0
  }
}
{
  "name": "cgroup_memory_anon_inactive_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 221270016.0
  }
}
{
  "name": "cgroup_memory_file_active_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 278040576.0
  }
}
{
  "name": "cgroup_memory_file_inactive_bytes",
  "namespace": "host",
  "tags": {
    "cgroup": "/",
    "collector": "cgroups",
    "host": "bendtech-uc2200"
  },
  "timestamp": "2025-05-06T23:52:00.121906296Z",
  "kind": "absolute",
  "gauge": {
    "value": 461619200.0
  }
}

I'm currently unsure why I keep getting cgroup: /, instead of service.slice/batt-edge.service, am I doing something wrong here? Let me know if there's anything I can do on my end to make it easier.

Thanks :)