If not suppling the `availability_zones`, they will be computed
(meaning an update/refresh will retrieve the info and update the values
to the state file).
So without the `Computed = true` the diff will always flag this as a
change, even when it’s not.
Some instance types have a block device by default. So when selecting
such an instance type, you will not set a config for the block device,
but the update/refresh func will notice one and update the state
nonetheless.
So in those cases the `block_device` becomes a `computed` field.
1. The schema contained a few fields that where not marked as
`computed`, while they were updated inside the resource.
2. While updating the `volume_size` it was doing so with a `string`,
but in the schema this field is set as `int`.
3. The set func for calculating the hashes for the `block` set items,
also used computed values to calculate the hash. As these values will
not be in the config, but only in the state, this will always show as a
diff. The solution is to only use the fields that aren’t computed in
order to get consistent hashes.
These where all issues before, but weren’t visible as such. All should
be good again now.
Fixes the following vet report:
builtin/providers/mailgun/resource_mailgun_domain_test.go:73: arg DomainResp.Domain.Wildcard for printf verb %s of wrong type: bool
Fixes the following vet reports:
builtin/providers/heroku/resource_heroku_app.go:192: arg vs for printf verb %s of wrong type: bool
builtin/providers/heroku/resource_heroku_app.go:198: arg vs for printf verb %s of wrong type: bool
Fixes the following vet reports:
builtin/providers/aws/resource_aws_network_acl.go:191: wrong number of args for format in Errorf call: 2 needed but 3 args
builtin/providers/aws/resource_aws_network_acl.go:264: wrong number of args for format in Errorf call: 1 needed but 2 args
builtin/providers/aws/resource_aws_network_acl.go:268: wrong number of args for format in Errorf call: 1 needed but 2 args
builtin/providers/aws/resource_aws_network_acl.go:286: arg m[to_port].(int) for printf verb %s of wrong type: int
builtin/providers/aws/resource_aws_network_acl_test.go:277: arg r.NetworkAcls for printf verb %s of wrong type: []github.com/mitchellh/goamz/ec2.NetworkAcl
builtin/providers/aws/resource_aws_subnet_test.go:21: arg v.MapPublicIpOnLaunch for printf verb %s of wrong type: bool
There was an error in the goamz package the prevented updating the
availability zones correctly. So PR #181 should be merged before this
one can be merged…
This is a little tricky, but when a diff contains a computed list or
set that can only be interpolated after the apply command has created
the dependant resources, it could turn out that the result is actually
the same as the existing state which would remove the key from the diff
By using a set for the availability zones, you can use things like
`availability_zones = ["${aws_instance.web.*.availability_zone}"]`
where is very likely multiple of the same zones will be added to the
set. If you use a list here, the list will say it’s changed (even if
you add the same zone) which will force a new resource.
This adds "field.#" values to the state/diff with the element count of a
map. This fixes a major issue around not knowing when child elements are
computed when doing variable access of a computed map.
Example, if you have a schema like this:
"foo": &Schema{
Type: TypeMap,
Computed: true,
}
And you access it like this in a resource:
${type.name.foo.computed-field}
Then Terraform will error that "field foo could not be found on resource
type.name". By adding that "foo.#" is computed, Terraform core will pick
up that it WILL exist, so its okay.
Kevin van Zonneveld