I'm pretty sure Ian can give more detail here. I thought that if you force
the ResourceGroup, then Juju intentionally doesn't clean them up. Because
you're likely sharing that group with other resources consumed by other
applications (that was how others have used it in the past).
If you *don't* supply `--resource-group` then juju should create a UUID
based resource group and tear it down when the controller is torn down.


On Mon, May 16, 2022 at 4:40 PM Vladimir Grevtsev <
<email address hidden>> wrote:

> Public bug reported:
>
> = Problem description
> Juju (v2.9.29) can create, but can't cleanup its own VM/VNET resources
> upon controller removal.
>
> = Steps to reproduce
>
> ubuntu@aws:~$ juju bootstrap azure/westeurope --config resource-group-
> name=JujuController --config=logging-config="<root>=DEBUG" --no-default-
> model azure-controller
>
> Creating Juju controller "azure-controller" on azure/westeurope
> Looking for packaged Juju agent version 2.9.29 for amd64
> Located Juju agent version 2.9.29-ubuntu-amd64 at
> https://jujuagents.blob.core.windows.net/juju-agents/agents/agent/2.9.29/juju-2.9.29-linux-amd64.tgz
> Launching controller instance(s) on azure/westeurope...
>  - machine-0 (arch=amd64 mem=3.5G cores=1)
> Installing Juju agent on bootstrap instance
> Fetching Juju Dashboard 0.8.1
> Waiting for address
> Attempting to connect to 52.232.109.238:22
> Attempting to connect to 192.168.16.4:22
> Connected to 52.232.109.238
> Running machine configuration script...
> Bootstrap agent now started
> Contacting Juju controller at 192.168.16.4 to verify accessibility...
>
> Bootstrap complete, controller "azure-controller" is now available
> Controller machines are in the "controller" model
>
> Now you can run
>         juju add-model <model-name>
> to create a new model to deploy workloads.
>
> # check the resources are in-place
> ubuntu@aws:~$ az resource list --resource-group JujuController -o table
> Name                   ResourceGroup    Location    Type
>                    Status
> ---------------------  ---------------  ----------
> ---------------------------------------  --------
> juju-controller        JujuController   westeurope
> Microsoft.Compute/availabilitySets
> machine-0              JujuController   westeurope
> Microsoft.Compute/virtualMachines
> machine-0-primary      JujuController   westeurope
> Microsoft.Network/networkInterfaces
> juju-internal-nsg      JujuController   westeurope
> Microsoft.Network/networkSecurityGroups
> machine-0-public-ip    JujuController   westeurope
> Microsoft.Network/publicIPAddresses
> juju-internal-network  JujuController   westeurope
> Microsoft.Network/virtualNetworks
>
> ubuntu@aws:~$ juju destroy-controller azure-controller
> WARNING! This command will destroy the "azure-controller" controller.
> This includes all machines, applications, data and other resources.
>
> Continue? (y/N):y
> Destroying controller
> Waiting for hosted model resources to be reclaimed
> All hosted models reclaimed, cleaning up controller machines
>
> # but resources are still there!
> ubuntu@aws:~$ sleep 300; az resource list --resource-group JujuController
> -o table
> Name                   ResourceGroup    Location    Type
>                    Status
> ---------------------  ---------------  ----------
> ---------------------------------------  --------
> juju-controller        JujuController   westeurope
> Microsoft.Compute/availabilitySets
> machine-0              JujuController   westeurope
> Microsoft.Compute/virtualMachines
> machine-0-primary      JujuController   westeurope
> Microsoft.Network/networkInterfaces
> juju-internal-nsg      JujuController   westeurope
> Microsoft.Network/networkSecurityGroups
> machine-0-public-ip    JujuController   westeurope
> Microsoft.Network/publicIPAddresses
> juju-internal-network  JujuController   westeurope
> Microsoft.Network/virtualNetworks
>
> ** Affects: juju
>      Importance: Undecided
>          Status: New
>
> --
> You received this bug notification because you are subscribed to juju.
> Matching subscriptions: juju bugs
> https://bugs.launchpad.net/bugs/1973641
>
> Title:
>   [Azure] Juju does not clean up the compute resources after the
>   controller destroy
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/juju/+bug/1973641/+subscriptions
>
>