We should error check up front on the use of num_cache_nodes and
cluster_mode. This allows us to write a test to make sure all works as
expected
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSElasticacheReplicationGroup_clusteringAndCacheNodesCausesError'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/05/09 19:04:56 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSElasticacheReplicationGroup_clusteringAndCacheNodesCausesError -timeout 120m
=== RUN TestAccAWSElasticacheReplicationGroup_clusteringAndCacheNodesCausesError
--- PASS: TestAccAWSElasticacheReplicationGroup_clusteringAndCacheNodesCausesError (40.58s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 40.603s
```
Added support for provisioning a native redis cluster elasticache replication group.
A new TypeSet attribute `cluster_mode` has been added. It requires the following
fields:
- `replicas_per_node_group` - The number of replica nodes in each node group
- `num_node_groups` - The number of node groups for this Redis replication group
Notes:
- `automatic_failover_enabled` must be set to true.
- `number_cache_clusters` is now a optional and computed field. If `cluster_mode` is set
its value will be computed as:
```num_node_groups + num_node_groups * replicas_per_node_group```
Below is a sample config:
resource "aws_elasticache_replication_group" "bar" {
replication_group_id = "tf-redis-cluser"
replication_group_description = "test description"
node_type = "cache.t2.micro"
port = 6379
parameter_group_name = "default.redis3.2.cluster.on"
automatic_failover_enabled = true
cluster_mode {
replicas_per_node_group = 1
num_node_groups = 2
}
}
Fixes#9895
The replication_group_id should allow length to be max of 20 not 16
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestResourceAWSElastiCacheReplicationGroupIdValidation'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2016/11/07 16:17:52 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v
-run=TestResourceAWSElastiCacheReplicationGroupIdValidation -timeout
120m
=== RUN TestResourceAWSElastiCacheReplicationGroupIdValidation
--- PASS: TestResourceAWSElastiCacheReplicationGroupIdValidation (0.00s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws0.032s
```
This commit adds an ability to modify the `AutoMinorVersionUpgrade` property of the
Replication Group (which is enabled by default) accordingly.
Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
This is a fix for issue https://github.com/hashicorp/terraform/issues/9596.
Changes:
- Adds new output attribute `configuration_endpoint_address`. Only
used in Redis when in cluster mode.
- Read the `snapshot_window` and `snapshot_retention_limit` from
the
replication group description instead of the cache cluster
description.
- Adds acceptance test and modifies an existing acceptance test to
make sure that everything is still good in non-cluster mode
- Updates docs to describe new output attribute
aws_elasticache_replication_group caused a panic
Fixes#9097
The update for `parameter_group_name` was trying to find the incorrect
value to set `cache_parameter_group_name` - this is what was causing the
panic
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSElasticacheReplicationGroup_updateParameterGroup'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2016/09/28 11:17:30 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v
-run=TestAccAWSElasticacheReplicationGroup_updateParameterGroup -timeout
120m
=== RUN TestAccAWSElasticacheReplicationGroup_updateParameterGroup
--- PASS: TestAccAWSElasticacheReplicationGroup_updateParameterGroup
(903.90s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws903.931s
```
The AWS documentation tells us the following:
```
--replication-group-id (string)
The replication group identifier. This parameter is stored as a
lowercase string.
Constraints:
A name must contain from *1 to 20* alphanumeric characters or hyphens.
The first character must be a letter.
A name cannot end with a hyphen or contain two consecutive hyphens.
```
This is not correct and is causing users errors:
```
* aws_elasticache_replication_group.bar: Error creating Elasticache
* Replication Group: InvalidParameterValue: Replication group id should
* be no more than 16 characters.
status code: 400, request id:
```
Tuning the Validation from 20 to 16 characters to avoid user issues
stack72