nomad agent does not show configured host_network

[shantanugadgil]

Nomad version

Nomad v1.1.5 (117a23d)

Operating system and Environment details

Amazon Linux 2

Issue

From a usability perspective, I couldn't find a way of listing the configured host_network on the client machine.
Commands that I have tried (on the machine in question):

• nomad node status -self -verbose
• nomad node status -self -json

none of the above commands contain any clue about the host_network named internal as shown below

Reproduction steps

add the following in the client section of the Nomad agent:

client {
  ...
  host_network "internal" {
    interface = "lo"
  }
}

restart the Nomad agent.

Expected Result

The node status or the node status -verbose should show the configured host_network for the node

Actual Result

there is no information if this has been configured correctly or not.

Job file (if appropriate)

N/A; although the networking works as expected, there is no way to query the information before launching the job.

(job file in any case)

job "host_network" {
  type        = "service"
  region      = "myregion"
  datacenters = ["mydc"]

  group "host_network" {
    count = 1

    network {
      port "http" {
        static       = 8080
        to           = 5678
        host_network = "internal"
      }
    }

    task "web" {
      driver = "docker"

      config {
        image          = "hashicorp/http-echo"
        args           = ["-text='hello world'"]
        auth_soft_fail = true

        ports = ["http"]
      }

      resources {
        cpu    = 1024
        memory = 1024
      }
    } # task1
  }   # group
}     # job

Nomad Server logs (if appropriate)

N/A

Nomad Client logs (if appropriate)

N/A

@angrycub @nickethier

[DerekStrickland]

Hi @shantanugadgil,

Thanks for raising this issue and providing configuration and reproduction steps. I'll try to reproduce your use case and update you on what I find.

• @DerekStrickland

[DerekStrickland]

Hi @shantanugadgil,

I just want to confirm. You are asking that this information be added. You are not saying that in some other scenario the information is available, but in your current configuration it is not available. Is that an accurate summary?

-Derek

[shantanugadgil]

Yes, I am asking that this information (about the host networks) be added to the output.

As far as I tried, I was not able to "query" for the information using the cmd line

[DerekStrickland]

ok thanks. I'll relabel this as an enhancement and add to the backlog for consideration then. Thx!

[deblasis]

Hi there,

I am wandering across the various projects looking for issues that I can contribute to. This one seemed like a good fit.

Given the client stanza described in the issue, a nomad node status returns the extra line:

Host Networks   = internal

while supplying the -verbose flag produces the section:

Host Networks
Name      CIDR         Interface
internal  127.0.0.1/8  lo

[shantanugadgil]

Awesome. If approved, any chance of this making into 1.2.0 GA?

[tgross]

Fixed in #11432 and will ship in 1.2.0-rc1.

[github-actions]

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