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IPv4 Interfaces

IPv4 Interfaces Collector​

To collect information about the IPv4 interfaces on the host, you can use ipv4Interfaces collector.

Parameters​

None.

Example Collector Definition​

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: ipv4Interfaces
spec:
  hostCollectors:
    - ipv4Interfaces: {}

Included Resources​

The results of the ipv4Interfaces collector are stored in the host-collectors/system directory of the support bundle.

ipv4Interfaces.json​

Example of the resulting JSON file:

[
   {
      "Index":2,
      "MTU":1460,
      "Name":"ens4",
      "HardwareAddr":"QgEKlgAo",
      "Flags":19
   },
   {
      "Index":3,
      "MTU":1500,
      "Name":"docker0",
      "HardwareAddr":"AkJSnADP",
      "Flags":19
   },
   {
      "Index":7,
      "MTU":1376,
      "Name":"weave",
      "HardwareAddr":"WgtTyJAI",
      "Flags":19
   }
]

IPv4 Interfaces Analyzer​

The ipv4Interfaces analyzer supports multiple outcomes:

  • count ==: Number of interfaces is equal to
  • count >=: Number of interfaces is greater than equal to
  • count <=: Number of interfaces is less than or equal to
  • count >: Number of interfaces is greater than
  • count <: Number of interfaces is less than

Example Analyzer Definition​

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: ipv4Interfaces
spec:
  hostCollectors:
    - ipv4Interfaces: {}
  hostAnalyzers:
    - ipv4Interfaces:
        outcomes:
          - fail:
              when: "count == 0"
              message: No IPv4 interfaces detected
          - warn:
              when: "count >= 2"
              message: Multiple IPv4 interfaces detected
          - pass:
              when: "count == 1"
              message: IPv4 interface detected