It was a mistake to switched fully to `==` when activating waiting for
capacity on updates in #3947. Users that didn't set `min_elb_capacity ==
desired_capacity` and instead treated it as an actual "minimum" would
see timeouts for every create, since their target numbers would never be
reached exactly.
Here, we fix that regression by restoring the minimum waiting behavior
during creates.
In order to preserve all the stated behavior, I had to split out
different criteria for create and update, criteria which are now
exhaustively unit tested.
The set of fields that affect capacity waiting behavior has become a bit
of a mess. Next major release I'd like to rework all of these into a
more consistently named block of config. For now, just getting the
behavior correct and documented.
(Also removes all the fixed names from the ASG tests as I was hitting
collision issues running them over here.)
Fixes#4792
http and https SNS topic subscription endpoints require confirmation to set a valid arn otherwise
arn would be set to "pending confirmation". If the endpoints auto confirm then arn is set
asynchronously but if we try to create another subscription with same parameters then api returns
"pending subscription" as arn but does not create another a duplicate subscription. In order to
solve this we should be fetching the subscription list for the topic and identify the subscription
with same parameters i.e., protocol, topic_arn, endpoint and extract the subscription arn.
Following changes were made to support the http/https endpoints that auto confirms
1. Added 3 extra parameters i.e.,
1. endpoint_auto_confirms -> boolean indicates if end points auto confirms
2. max_fetch_retries -> number of times to fetch subscription list for the topic to get the subscription arn
3. fetch_retry_delay -> delay b/w fetch subscription list call as the confirmation is done asynchronously.
With these parameters help added support http and https protocol based endpoints that auto confirm.
2. Update website doc appropriately
This allows specification of the profile for the shared credentials
provider for AWS to be specified in Terraform configuration. This is
useful if defining providers with aliases, or if you don't want to set
environment variables. Example:
$ aws configure --profile this_is_dog
... enter keys
$ cat main.tf
provider "aws" {
profile = "this_is_dog"
# Optionally also specify the path to the credentials file
shared_credentials_file = "/tmp/credentials"
}
This is equivalent to specifying AWS_PROFILE or
AWS_SHARED_CREDENTIALS_FILE in the environment.
When spinning up from a snapshot or a read replica, these fields are
now optional:
* allocated_storage
* engine
* password
* username
Some validation logic is added to make these fields required when
starting a database from scratch.
The documentation is updated accordingly.
Radek Simko