According to your initial report, you were using:
 "0": {constraints: tags=infra zones=AZ1, series: *series}
  "1": {constraints: tags=infra zones=AZ1, series: *series}
  "2": {constraints: tags=infra zones=AZ2, series: *series}

However, from what you listed from MAAS, there is

a) Only 1 node tagged "infra" in AZ1, and you have requested 2
b) No nodes in AZ2 that are tagged "infra", and you have requested one.

As mentioned earlier, if you did have a manually provisioned and added
machine, that does throw a bit of a wrench in the works if you are asking
Juju to then match up machines in the model to hypothetical machines in the
bundle.

On Wed, May 8, 2019 at 1:50 PM Giuseppe Petralia <email address hidden>
wrote:

> The list of potential machines from MAAS is the following:
>
> $ maas maas-root nodes read zone=AZ1 | jq '.[] | "\(.system_id) \(.
> zone.name) \(.tag_names)"'
> "axsmcd AZ1 [\"os-cs-vnf\",\"physical\"]"
> "htt6st AZ1 [\"os-cs-vnf\",\"physical\"]"
> "rpbttp AZ1 [\"os-cs-vnf\",\"physical\"]"
> "tkba4s AZ1 [\"os-cs-vnf\",\"physical\"]"
> "pcnwph AZ1 [\"os-cs-vnf\",\"physical\"]"
> "k8nb7d AZ1 [\"os-cs-vnf\",\"physical\"]"
> "msntby AZ1 [\"os-cs-vnf\",\"physical\"]"
> "8pnr7t AZ1 [\"os-cs-vnf\",\"physical\"]"
> "7skp7g AZ1 [\"os-cs-vnf\",\"physical\"]"
> "kmc4bp AZ1 [\"os-cs-vnf\",\"physical\"]"
> "dfdqde AZ1 [\"physical\",\"os-cs-vplus\"]"
> "gcyqfr AZ1 [\"physical\",\"os-cs-vplus\"]"
> "a7c7y6 AZ1 [\"physical\",\"os-cs-vplus\"]"
> "7cm7sg AZ1 [\"physical\",\"infra\"]"
> "hbkdwr AZ1 [\"virtual\",\"juju\"]"
>
>
> $ maas maas-root nodes read zone=AZ2 | jq '.[] | "\(.system_id) \(.
> zone.name) \(.tag_names)"'
> "xe6y6d AZ2 [\"os-cs-vnf\",\"physical\"]"
> "xqcwht AZ2 [\"os-cs-vnf\",\"physical\"]"
> "nn8mad AZ2 [\"os-cs-vnf\",\"physical\"]"
> "y66t48 AZ2 [\"os-cs-vnf\",\"physical\"]"
> "8bat3n AZ2 [\"os-cs-vnf\",\"physical\"]"
> "xdxgt6 AZ2 [\"os-cs-vnf\",\"physical\"]"
> "wpbm48 AZ2 [\"os-cs-vnf\",\"physical\"]"
> "s7smgc AZ2 [\"os-cs-vnf\",\"physical\"]"
> "d3wg3t AZ2 [\"os-cs-vnf\",\"physical\"]"
> "kgfrpb AZ2 [\"os-cs-vnf\",\"physical\"]"
> "m7eqwm AZ2 [\"os-cs-vnf\",\"physical\"]"
> "scc768 AZ2 [\"physical\",\"os-cs-vplus\"]"
> "fk83sk AZ2 [\"physical\",\"os-cs-vplus\"]"
> "cx4xt6 AZ2 [\"physical\",\"os-cs-vplus\"]"
> "ms8qx7 AZ2 [\"physical\",\"infra\"]"
>
>
> $ maas maas-root nodes read zone=AZ3 | jq '.[] | "\(.system_id) \(.
> zone.name) \(.tag_names)"'
>  maas maas-root nodes read zone=AZ1 | jq '.[] | "\(.system_id) \(.
> zone.name) \(.tag_names)"'"k4kwta AZ3 [\"os-cs-vnf\",\"physical\"]"
> "bqbw3p AZ3 [\"os-cs-vnf\",\"physical\"]"
> "66gwcc AZ3 [\"os-cs-vnf\",\"physical\"]"
> "73twnf AZ3 [\"os-cs-vnf\",\"physical\"]"
> "qcxx4a AZ3 [\"os-cs-vnf\",\"physical\"]"
> "me3em4 AZ3 [\"os-cs-vnf\",\"physical\"]"
> "t8srpe AZ3 [\"os-cs-vnf\",\"physical\"]"
> "4ccgs3 AZ3 [\"os-cs-vnf\",\"physical\"]"
> "mm6wkr AZ3 [\"physical\",\"os-cs-vplus\"]"
> "44xkst AZ3 [\"os-cs-vnf\",\"physical\"]"
> "7w7nne AZ3 [\"physical\",\"os-cs-vplus\"]"
> "6qmfbx AZ3 [\"physical\",\"os-cs-vplus\"]"
>
>
> All machines were in Ready state when we hit the bug.
>
> The problems that we faced were:
> - The bundle doesn't deploy because no machines in AZ1 can be found, even
> if there are
>   available machines satisfying the constraints.
> - The initial machine doesn't show the right zone.
> - Even if we ask explicitly for the first machine to be added in AZ1,
>   then the deploy fails again because no machines can be found in AZ1
>
>
>
>
> ** Description changed:
>
>   When trying to deploy a bundle where machines section looks like this:
>
>   '''
>   machines:
> +   machines:
>     "0": {constraints: tags=infra zones=AZ1, series: *series}
>     "1": {constraints: tags=infra zones=AZ1, series: *series}
>     "2": {constraints: tags=infra zones=AZ2, series: *series}
> -   ...
> +   "3": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "4": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "5": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "6": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "7": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "8": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "9": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "10": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "11": {constraints: tags=os-cs-vnf zones=AZ1, series: *series}
> +   "12": {constraints: tags=os-cs-vplus zones=AZ1, series: *series}
> +   "13": {constraints: tags=os-cs-vplus zones=AZ1, series: *series}
> +   "14": {constraints: tags=os-cs-vplus zones=AZ1, series: *series}
>     "15": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
>     "16": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
>     "17": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> -   ...
> +   "18": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "19": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "20": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "21": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "22": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "23": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "24": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "25": {constraints: tags=os-cs-vnf zones=AZ2, series: *series}
> +   "26": {constraints: tags=os-cs-vplus zones=AZ2, series: *series}
> +   "27": {constraints: tags=os-cs-vplus zones=AZ2, series: *series}
> +   "28": {constraints: tags=os-cs-vplus zones=AZ2, series: *series}
>     "29": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
>     "30": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
>     "31": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "32": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "33": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "34": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "35": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "36": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "37": {constraints: tags=os-cs-vplus zones=AZ3, series: *series}
> +   "38": {constraints: tags=os-cs-vnf zones=AZ3, series: *series}
> +   "39": {constraints: tags=os-cs-vplus zones=AZ3, series: *series}
> +   "40": {constraints: tags=os-cs-vplus zones=AZ3, series: *series}
>   '''
> -
>
>   No machines can be found in AZ1 from Maas and deploy fails.
>   Machines in AZ2 and AZ3 are added correctly.
>
>   The deploy is run with option --map-machines=existing
>   because we added manually machine id "0" using the command:
>
>   juju add-machine --constraints "tags=infra,spaces=space-mgmt,space-api
>   ,space-sta" ssh:user@IP
>
>   This machine is supposed to be in AZ1 but the availability is not
>   correctly showed in juju status.
>
>   We are using:
>   Juju version 2.5.4-xenial-amd64
>
> --
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> Matching subscriptions: juju bugs
> https://bugs.launchpad.net/bugs/1828076
>
> Title:
>   juju deploy fails because no machines can be found in MaaS in a given
>   AZ
>
> To manage notifications about this bug go to:
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>