aws_autoscaling_group.web_asg: aws_autoscaling_group.web_asg: diffs didn't match during apply.

[d-helios]

errorlog:

Error: Error applying plan:

1 error(s) occurred:

* aws_autoscaling_group.web_asg: aws_autoscaling_group.web_asg: diffs didn't match during apply. This is a bug with Terraform and should be reported as a GitHub Issue.

Please include the following information in your report:

    Terraform Version: 0.10.8
    Resource ID: aws_autoscaling_group.web_asg
    Mismatch reason: attribute mismatch: availability_zones.2487133097
    Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"availability_zones.2487133097":*terraform.ResourceAttrDiff{Old:"", New:"us-west-2a", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.value":*terraform.ResourceAttrDiff{Old:"", New:"web-asg", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"${aws_launch_configuration.web_lc.id}", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}
    Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.value":*terraform.ResourceAttrDiff{Old:"", New:"web-asg", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.3077137862":*terraform.ResourceAttrDiff{Old:"", New:"subnet-aeb2d4e6", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"terraform-20171112150423599900000001", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2421615522.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}

Also include as much context as you can about your config, state, and the steps you performed to trigger this error.

here is my configuration:
https://www.dropbox.com/s/8k35nf9pnm0wxkj/TF-Tests.tgz?dl=0

terraform version: v0.10.8

[vorotech]

Have the same error with aws_autoscalling_group

Using https://github.com/segmentio/stack configuration

Error: Error applying plan:

1 error(s) occurred:

* module.stack.module.ecs_cluster.module.ecs_cluster.aws_autoscaling_group.main: aws_autoscaling_group.main: diffs didn't match during apply. This is a bug with Terraform and should be reported as
a GitHub Issue.

Please include the following information in your report:

    Terraform Version: 0.10.8
    Resource ID: aws_autoscaling_group.main
    Mismatch reason: attribute mismatch: availability_zones.3953592328
    Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"name":*terraform.ResourceAttrDiff{Old:"", New:"pb-clus
ter", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewCo
mputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemo
ved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false
, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:inte
rface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:inter
face {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(ni
l), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:f
alse, Sensitive:false, Type:0x0}, "availability_zones.3953592328":*terraform.ResourceAttrDiff{Old:"", New:"eu-west-1a", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:
false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:
0x0}, "termination_policies.1":*terraform.ResourceAttrDiff{Old:"", New:"Default", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "me
trics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_po
licies.0":*terraform.ResourceAttrDiff{Old:"", New:"OldestLaunchConfiguration", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.7
76695200.value":*terraform.ResourceAttrDiff{Old:"", New:"dev", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.#"
:*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceA
ttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.propagate_at_launch":*terraform.ResourceAttrDif
f{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComp
uted:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, Ne
wExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, Ne
wExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil
), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), Requi
resNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"${aws_launch_configuration.main.id}", NewComputed:true, NewRemoved:false, NewExtra:interfac
e {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.key":*terraform.ResourceAttrDiff{Old:"", New:"Environment", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil),
 RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew
:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:fa
lse, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier
.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttr
Diff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.key":*terraform.ResourceAttrDiff{Old:"", Ne
w:"Cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewCompu
ted:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}
    Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"target_group_arns.#":*terraform.ResourceAttrDiff{Old:
"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", Ne
w:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:
true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:
false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra
:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), R
equiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensi
tive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false
, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776
695200.value":*terraform.ResourceAttrDiff{Old:"", New:"dev", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.propagat
e_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.Re
sourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.value":*terraform.ResourceAttrDiff{Old
:"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:""
, NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed
:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemov
ed:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.0":*terraform.ResourceAttrDiff{Old:"", New:"OldestLaunchConfiguration", NewComputed:false,
 NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemo
ved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.4279456599":*terraform.ResourceAttrDiff{Old:"", New:"subnet-da016781", NewComputed:false,
NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:in
terface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(n
il), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), Requi
resNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.key":*terraform.ResourceAttrDiff{Old:"", New:"Cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false,
 Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "ta
g.776695200.key":*terraform.ResourceAttrDiff{Old:"", New:"Environment", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_confi
guration":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster-20171112220637573900000002", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:
0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "arn":*terraform.Re
sourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.propagate_at_launch":*terraform.Resource
AttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.1":*terraform.ResourceAttrDiff{Old
:"", New:"Default", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:
map[string]interface {}(nil)}

[d-helios]

I commented availability_zones line and now it’s ok. resource "aws_autoscaling_group" "web_asg" { launch_configuration = "${aws_launch_configuration.web_lc.id}" min_size = "${var.web_inst_min_count}" max_size = "${var.web_inst_max_count}" # availability_zones = ["${var.default_AZ}"] vpc_zone_identifier = ["${aws_subnet.subnet_for_app.id}"] tag { key = "Name" value = "web-asg" propagate_at_launch = true } }

…

On 13 Nov 2017, at 01:11, Dmytro Vorotyntsev ***@***.***> wrote: Have the same error with aws_autoscalling_group Using https://github.com/segmentio/stack <https://github.com/segmentio/stack> configuration Error: Error applying plan: 1 error(s) occurred: * module.stack.module.ecs_cluster.module.ecs_cluster.aws_autoscaling_group.main: aws_autoscaling_group.main: diffs didn't match during apply. This is a bug with Terraform and should be reported as a GitHub Issue. Please include the following information in your report: Terraform Version: 0.10.8 Resource ID: aws_autoscaling_group.main Mismatch reason: attribute mismatch: availability_zones.3953592328 Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"name":*terraform.ResourceAttrDiff{Old:"", New:"pb-clus ter", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewCo mputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemo ved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false , NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:inte rface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:inter face {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(ni l), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:f alse, Sensitive:false, Type:0x0}, "availability_zones.3953592328":*terraform.ResourceAttrDiff{Old:"", New:"eu-west-1a", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew: false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type: 0x0}, "termination_policies.1":*terraform.ResourceAttrDiff{Old:"", New:"Default", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "me trics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_po licies.0":*terraform.ResourceAttrDiff{Old:"", New:"OldestLaunchConfiguration", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.7 76695200.value":*terraform.ResourceAttrDiff{Old:"", New:"dev", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.#" :*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceA ttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.propagate_at_launch":*terraform.ResourceAttrDif f{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComp uted:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, Ne wExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, Ne wExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil ), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), Requi resNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"${aws_launch_configuration.main.id}", NewComputed:true, NewRemoved:false, NewExtra:interfac e {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.key":*terraform.ResourceAttrDiff{Old:"", New:"Environment", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew :false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:fa lse, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier .#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttr Diff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.key":*terraform.ResourceAttrDiff{Old:"", Ne w:"Cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewCompu ted:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)} Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"target_group_arns.#":*terraform.ResourceAttrDiff{Old: "", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776695200.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", Ne w:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed: true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved: false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra :interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), R equiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensi tive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false , Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.776 695200.value":*terraform.ResourceAttrDiff{Old:"", New:"dev", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.propagat e_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.Re sourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.value":*terraform.ResourceAttrDiff{Old :"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"" , NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed :false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemov ed:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.0":*terraform.ResourceAttrDiff{Old:"", New:"OldestLaunchConfiguration", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.value":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemo ved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.4279456599":*terraform.ResourceAttrDiff{Old:"", New:"subnet-da016781", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:in terface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(n il), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), Requi resNew:false, Sensitive:false, Type:0x0}, "tag.2040391620.key":*terraform.ResourceAttrDiff{Old:"", New:"Cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "ta g.776695200.key":*terraform.ResourceAttrDiff{Old:"", New:"Environment", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_confi guration":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster-20171112220637573900000002", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type: 0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"pb-cluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "arn":*terraform.Re sourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.996329934.propagate_at_launch":*terraform.Resource AttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "termination_policies.1":*terraform.ResourceAttrDiff{Old :"", New:"Default", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta: map[string]interface {}(nil)} — You are receiving this because you authored the thread. 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[dendrochronology]

I'm also using segmentio/stack as a base config (like @vorotech mentioned earlier), and don't think I can work around this without overriding a lot of stuff, which somewhat defeats the reusability of a terraform module :-/

There are multiple issues about AWS autoscaling diffs going back a few months, and the suggested workaround doesn't seem to work for everyone (see this). Can someone on the hashicorp throw some light on this? @bflad?

[weklund]

I seem to be getting the same issue, even after I followed @d-helios workaround

[tbartolucci]

I have t he same issue.

Error: Error applying plan:

1 error(s) occurred:

• aws_autoscaling_group.linux_cluster_autoscaling_group: aws_autoscaling_group.linux_cluster_autoscaling_group: diffs didn't match during apply. This is a bug with Terraform and should be reported as a GitHub Issue.

Please include the following information in your report:

Terraform Version: 0.11.3
Resource ID: aws_autoscaling_group.linux_cluster_autoscaling_group
Mismatch reason: attribute mismatch: availability_zones.1252502072
Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"max_size":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"15m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.1252502072":*terraform.ResourceAttrDiff{Old:"", New:"us-east-1f", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"linux-cluster-group", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.3569565595":*terraform.ResourceAttrDiff{Old:"", New:"us-east-1a", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"linux-cluster-config", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}
Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.2306588628":*terraform.ResourceAttrDiff{Old:"", New:"subnet-b48f53bb", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"linux-cluster-config", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"linux-cluster-group", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"15m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.36045985":*terraform.ResourceAttrDiff{Old:"", New:"subnet-9f1037b0", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}

[tbartolucci]

I originally had:

resource "aws_autoscaling_group" "linux_cluster_autoscaling_group" {
availability_zones = ["${var.availability_zones[0]}","${var.availability_zones[1]}"]
name = "${aws_ecs_cluster.linux_cluster.name}-group"
max_size = 2
min_size = 1
desired_capacity = 1
vpc_zone_identifier = ["${aws_subnet.ecs_cluster_subnet2.id}", "${aws_subnet.ecs_cluster_subnet1.id}"]
launch_configuration = "${aws_launch_configuration.linux_cluster_config.name}"
wait_for_capacity_timeout = "15m"
}

But changed the min_size and desired_capacity to 2
resource "aws_autoscaling_group" "linux_cluster_autoscaling_group" {
availability_zones = ["${var.availability_zones[0]}","${var.availability_zones[1]}"]
name = "${aws_ecs_cluster.linux_cluster.name}-group"
max_size = 3
min_size = 2
desired_capacity = 2
vpc_zone_identifier = ["${aws_subnet.ecs_cluster_subnet2.id}", "${aws_subnet.ecs_cluster_subnet1.id}"]
launch_configuration = "${aws_launch_configuration.linux_cluster_config.name}"
wait_for_capacity_timeout = "15m"
}

After I re-ran it worked.

[ukn]

Same problem here.
My plan has three autoscaling groups and terraform threw errors for each of them.
Here is one of them:

    Terraform Version: 0.11.5
    Resource ID: aws_autoscaling_group.bastion
    Mismatch reason: attribute mismatch: availability_zones.1924028850
    Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"bastion-asg-test", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"EC2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.key":*terraform.ResourceAttrDiff{Old:"", New:"KubernetesCluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.value":*terraform.ResourceAttrDiff{Old:"", New:"bastion", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"${aws_launch_configuration.bastion.id}", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.1924028850":*terraform.ResourceAttrDiff{Old:"", New:"eu-west-1b", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.value":*terraform.ResourceAttrDiff{Old:"", New:"test", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.94988580":*terraform.ResourceAttrDiff{Old:"", New:"eu-west-1c", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "service_linked_role_arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "availability_zones.3953592328":*terraform.ResourceAttrDiff{Old:"", New:"eu-west-1a", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}
    Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"vpc_zone_identifier.11959725":*terraform.ResourceAttrDiff{Old:"", New:"subnet-48e73d2e", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "protect_from_scale_in":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.value":*terraform.ResourceAttrDiff{Old:"", New:"bastion", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "min_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "desired_capacity":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "service_linked_role_arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "wait_for_capacity_timeout":*terraform.ResourceAttrDiff{Old:"", New:"10m", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "default_cooldown":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "name":*terraform.ResourceAttrDiff{Old:"", New:"bastion-asg-test", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "arn":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.key":*terraform.ResourceAttrDiff{Old:"", New:"Name", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "load_balancers.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "max_size":*terraform.ResourceAttrDiff{Old:"", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.3213260524":*terraform.ResourceAttrDiff{Old:"", New:"subnet-54e8431c", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "metrics_granularity":*terraform.ResourceAttrDiff{Old:"", New:"1Minute", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.#":*terraform.ResourceAttrDiff{Old:"", New:"2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "target_group_arns.#":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.#":*terraform.ResourceAttrDiff{Old:"", New:"3", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.value":*terraform.ResourceAttrDiff{Old:"", New:"test", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "launch_configuration":*terraform.ResourceAttrDiff{Old:"", New:"bastion_test20180409115446489300000002", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "vpc_zone_identifier.785283406":*terraform.ResourceAttrDiff{Old:"", New:"subnet-ba53b6e0", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.357937202.propagate_at_launch":*terraform.ResourceAttrDiff{Old:"", New:"true", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "tag.362336314.key":*terraform.ResourceAttrDiff{Old:"", New:"KubernetesCluster", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_grace_period":*terraform.ResourceAttrDiff{Old:"", New:"300", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "force_delete":*terraform.ResourceAttrDiff{Old:"", New:"false", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}, "health_check_type":*terraform.ResourceAttrDiff{Old:"", New:"EC2", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false, Meta:map[string]interface {}(nil)}

I re-ran the plan without making any changes and it worked.

[bflad]

Hi @everyone. 👋 Sorry you are running into trouble here. Up until a few days ago, the aws_autoscaling_group resource documentation did not clarify the usage of the availability_zones attribute to only be required for EC2-Classic. In VPC environments, the subnet IDs passed into vpc_zone_identifier will automatically determine the availability zones (as a subnet is inherently part of a single AZ).

To fix your situation, simply remove the availability_zones configuration. Hope this helps!

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

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