How to get `name` in job template?

[masterjg]

      --name=<string>
        If set, this will be the unique identifier of this deployed instance
        of the specified pack. If not set, the pack name will be used. This
        is useful for running more than one instance of a pack within the same
        cluster. Note that this name must be globally unique within a cluster.
        Running the run command multiple times with the same name, will just
        re-submit the same pack, and apply changes if you have made any to
        the underlying pack. Be mindful that, whether you have made changes
        or not, the underlying Allocations will be replaced. When managing
        packs, the name specified here is the name that should be passed to
        nomad-pack's plan and destroy commands.

How do you get value in job template of this argument?
I know I can get meta (ie [[ meta "pack.name" . ]]) and vars (ie [[ var "id" . ]]) but no info on how to get unique identifier passed as --name=.

[Juanadelacuesta]

Hi @masterjg! Can you be a little more specific on what you are trying to do here?

[masterjg]

I want to access value of --name argument that I pass when doing deployment in my template. If I understand correctly it's being used as "ID" for deployments when same pack is deployed multiple times, right? This is official way of doing multiple deployments of same pack?

nomad-pack run . -f debug.var.hcl --name test

hypothetical arg val:

job "...-[[ arg "name" . ]]" {
...

becomes when rendered:

job "...-test" {
...

[masterjg]

Right now I use another variable but this seems useless if --name is official way of doing this.

[masterjg]

Initially I thought that it's available as [[ meta "pack.deployment_name" . ]] but nooo....

[Juanadelacuesta]

Looking at the docs: By passing a --name value into run, Nomad Pack deploys each resource in the pack with a metadata value for pack name
It seems like your initial approach is the correct one: [[ meta "pack.name" . ]]. Every resource will have this metadata populated and that is the way to use it. Is there anything preventing you from using it like that way?

[masterjg]

Looking at the docs: By passing a --name value into run, Nomad Pack deploys each resource in the pack with a metadata value for pack name It seems like your initial approach is the correct one: [[ meta "pack.name" . ]]. Every resource will have this metadata populated and that is the way to use it. Is there anything preventing you from using it like that way?

Nope, in the Nomad UI I can confirm that --name sets pack.deployment_name metadata but it's not available with [[ meta "pack.deployment_name" . ]] in nomad pack template for some reason...