So the code has:
    fans, err := cfg.FanConfig()
    if err != nil {
        return errors.Trace(err)
    }
    if len(fans) == 0 {
        return nil
    }

So it should only be trying to CalculateOverlaySegment if FanConfig is not
empty.

I know we do some amount of autodetection of whether we *could* run the
fan. Can you make sure that fan-config is set to "" ?

What I also don't understand is that the CalculateOverlaySegment is also
doing:

if underlaySize <= subnetSize && fan.Underlay.Contains(underlayNet.IP) {
...
  newFanIP := underlayNet.IP.To4()

I don't quite see how fan.Underlay would end up saying that its CIDR
"Contains" an IPv6 address.

I know we do some amount of "autodetect what a possible fan config could
be", but I haven't found that code yet. It's possible we implemented
something on Openstack that somehow automatically generates fan config that
includes IPv6 addresses, when we know that it never should.

On Wed, Apr 11, 2018 at 6:41 PM, thomas <email address hidden> wrote:

> Hi, I tried with model-default config, but it still fails with the same
> error...
>
> juju bootstrap ovh-public-cloud ovh-openstack-sbg1 --config image-
> metadata-
> url=https://storage.sbg1.cloud.ovh.net/v1/AUTH_
> f0c04bb34430403982c05c26a9e934b3/simplestreams/images/
> --bootstrap-series xenial --model-default container-networking-
> method=local --show-log --debug
>
> ...
>
> 2018-04-11 14:41:26 DEBUG juju.state spacesdiscovery.go:50 environ does
> not support space discovery, falling back to subnet discovery
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:223 killing runner
> 0xc42067cb60
> 2018-04-11 14:41:28 INFO juju.worker runner.go:313 runner is dying
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:456 killing "presence"
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:456 killing "pingbatcher"
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:456 killing "leadership"
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:456 killing "singular"
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:456 killing "txnlog"
> 2018-04-11 14:41:28 INFO juju.worker runner.go:483 stopped "txnlog", err:
> <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:332 "txnlog" done: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:395 no restart, removing
> "txnlog" from known workers
> 2018-04-11 14:41:28 INFO juju.worker runner.go:483 stopped "presence",
> err: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:332 "presence" done: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:395 no restart, removing
> "presence" from known workers
> 2018-04-11 14:41:28 INFO juju.worker runner.go:483 stopped "leadership",
> err: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:332 "leadership" done:
> <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:395 no restart, removing
> "leadership" from known workers
> 2018-04-11 14:41:28 INFO juju.worker runner.go:483 stopped "pingbatcher",
> err: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:332 "pingbatcher" done:
> <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:395 no restart, removing
> "pingbatcher" from known workers
> 2018-04-11 14:41:28 INFO juju.worker runner.go:483 stopped "singular",
> err: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:332 "singular" done: <nil>
> 2018-04-11 14:41:28 DEBUG juju.worker runner.go:395 no restart, removing
> "singular" from known workers
> 2018-04-11 14:41:28 DEBUG juju.state open.go:306 closed state without error
> 2018-04-11 14:41:28 DEBUG juju.cmd.jujud asm_amd64.s:574 jujud complete,
> code 0, err <nil>
> 2018-04-11 14:41:28 CRITICAL juju.cmd.jujud main.go:204 Unhandled panic:
> runtime error: index out of range
> goroutine 1 [running]:
> main.Main.func1()
>         /workspace/src/github.com/juju/juju/cmd/jujud/main.go:203 +0xbc
> panic(0x290d860, 0x493a120)
>         /snap/go/1473/src/runtime/panic.go:505 +0x229
> github.com/juju/juju/network.CalculateOverlaySegment(0xc42061f480, 0x17,
> 0xc420582a80, 0xc420582ab0, 0x49e61e0, 0xc4204f0300, 0x42)
>         /workspace/src/github.com/juju/juju/network/fan.go:74 +0x3a5
> github.com/juju/juju/state.(*State).SaveSubnetsFromProvider(0xc420489d40,
> 0xc420465200, 0x4, 0x4, 0x0, 0x0, 0xc420465200, 0x4)
>         /workspace/src/github.com/juju/juju/state/spacesdiscovery.go:124
> +0x70d
> github.com/juju/juju/state.(*State).ReloadSpaces(0xc420489d40, 0x3224180,
> 0xc420464780, 0x0, 0x0)
>         /workspace/src/github.com/juju/juju/state/spacesdiscovery.go:55
> +0x20e
> github.com/juju/juju/agent/agentbootstrap.InitializeState(0x2ebbe81, 0x5,
> 0x0, 0x0, 0x7f84063708b0, 0xc4200fa420, 0xc420ae24d0, 0x0, 0xc4205ae9c0,
> 0x10, ...)
>         /workspace/src/github.com/juju/juju/agent/
> agentbootstrap/bootstrap.go:226 +0x14f9
> main.(*BootstrapCommand).Run.func2(0x7f84063708b0, 0xc4200fa420,
> 0xc4200fa420, 0x7f84063708b0)
>         /workspace/src/github.com/juju/juju/cmd/jujud/bootstrap.go:266
> +0x42f
> github.com/juju/juju/cmd/jujud/agent.(*agentConf).
> ChangeConfig(0xc4206f6b10, 0xc42035a900, 0x0, 0x0)
>         /workspace/src/github.com/juju/juju/cmd/jujud/agent/agent.go:103
> +0xb0
> main.(*BootstrapCommand).Run(0xc4206f6b40, 0xc420184a00, 0x0, 0x0)
>         /workspace/src/github.com/juju/juju/cmd/jujud/bootstrap.go:250
> +0xbc0
> github.com/juju/cmd.(*SuperCommand).Run(0xc420540b40, 0xc420184a00,
> 0xc420184a00, 0x0)
>         /workspace/src/github.com/juju/cmd/supercommand.go:456 +0x2c0
> github.com/juju/cmd.Main(0x31f6ac0, 0xc420540b40, 0xc420184a00,
> 0xc42004c090, 0x7, 0x7, 0x0)
>         /workspace/src/github.com/juju/cmd/cmd.go:317 +0x266
> main.jujuDMain(0xc42004c080, 0x8, 0x8, 0xc420184a00, 0x0, 0x0, 0x0)
>         /workspace/src/github.com/juju/juju/cmd/jujud/main.go:186 +0x894
> main.Main(0xc42004c080, 0x8, 0x8, 0x0)
>         /workspace/src/github.com/juju/juju/cmd/jujud/main.go:219 +0x1d9
> main.MainWrapper(0xc42004c080, 0x8, 0x8)
>         /workspace/src/github.com/juju/juju/cmd/jujud/main.go:194 +0x3f
> main.main()
>         /workspace/src/github.com/juju/juju/cmd/jujud/main_nix.go:22 +0x45
>
> 16:41:28 ERROR juju.cmd.juju.commands bootstrap.go:528 failed to bootstrap
> model: subprocess encountered error code 1
> 16:41:28 DEBUG juju.cmd.juju.commands bootstrap.go:529 (error details: [{
> github.com/juju/juju/cmd/juju/commands/bootstrap.go:620: failed to
> bootstrap model} {subprocess encountered error code 1}])
>
> --
> You received this bug notification because you are subscribed to juju.
> Matching subscriptions: juju bugs
> https://bugs.launchpad.net/bugs/1761706
>
> Title:
>   agent installation fails
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/juju/+bug/1761706/+subscriptions
>