AWS version mismatch between several modules

[tirumerla]

Describe the Bug

Hello Team -

I started using terraform-aws-eks-node-group module and it uses provider hashicorp/aws version >=3.0.* while the other modules uses version ~> 2.0. This is causing the issue when nodegroups are used with loadbalancers, keypair and rds modules.

Terraform version: v0.13.5
Running terraform init throws

- Using hashicorp/local v1.4.0 from the shared cache directory
- Using hashicorp/template v2.2.0 from the shared cache directory
- Using hashicorp/tls v2.2.0 from the shared cache directory
- Using hashicorp/kubernetes v1.13.3 from the shared cache directory
- Using -/template v2.2.0 from the shared cache directory

Error: Failed to query available provider packages
Could not retrieve the list of available versions for provider hashicorp/aws:
no available releases match the given constraints ~> 2.0, ~> 2.0, ~> 2.0, >=
2.0.*, >= 2.0.*, < 4.0.*, >= 3.0.*, >= 3.0.*, >= 2.0.*, ~> 2.0, ~> 2.0

Providers list

Providers required by configuration:
.
├── provider[registry.terraform.io/hashicorp/aws]
├── provider[registry.terraform.io/hashicorp/random]
├── provider[registry.terraform.io/hashicorp/null]
├── provider[registry.terraform.io/hashicorp/local]
├── module.bastion_autoscale
│   ├── provider[registry.terraform.io/hashicorp/null] ~> 2.0
│   ├── provider[registry.terraform.io/hashicorp/aws] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/template] ~> 2.0
│   └── module.label
├── module.eks_cluster
│   ├── provider[registry.terraform.io/hashicorp/template] ~> 2.0
│   ├── provider[registry.terraform.io/hashicorp/null] ~> 2.0
│   ├── provider[registry.terraform.io/hashicorp/local] ~> 1.3
│   ├── provider[registry.terraform.io/hashicorp/kubernetes] ~> 1.11
│   ├── provider[registry.terraform.io/hashicorp/aws] >= 2.0.*, < 4.0.*
│   ├── module.label
│   └── module.this
├── module.eks_node_group1
│   ├── provider[registry.terraform.io/hashicorp/random] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/aws] >= 3.0.*
│   ├── provider[registry.terraform.io/hashicorp/template] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/local] >= 1.3.*
│   ├── module.label
│   └── module.this
├── module.eks_node_group2
│   ├── provider[registry.terraform.io/hashicorp/local] >= 1.3.*
│   ├── provider[registry.terraform.io/hashicorp/random] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/aws] >= 3.0.*
│   ├── provider[registry.terraform.io/hashicorp/template] >= 2.0.*
│   ├── module.label
│   └── module.this
├── module.external_alb
│   ├── provider[registry.terraform.io/hashicorp/local] >= 1.3.*
│   ├── provider[registry.terraform.io/hashicorp/aws] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/template] >= 2.0.*
│   ├── provider[registry.terraform.io/hashicorp/null] >= 2.0.*
│   ├── module.default_target_group_label
│   ├── module.access_logs
│       ├── provider[registry.terraform.io/hashicorp/aws] ~> 2.0
│       ├── provider[registry.terraform.io/hashicorp/local] ~> 1.2
│       ├── provider[registry.terraform.io/hashicorp/null] ~> 2.0
│       ├── module.label
│       └── module.s3_bucket
│           ├── provider[registry.terraform.io/hashicorp/null] ~> 2.0
│           ├── provider[registry.terraform.io/hashicorp/aws] ~> 2.0
│           ├── provider[registry.terraform.io/hashicorp/local] ~> 1.2
│           └── module.default_label
│   └── module.default_label
├── module.label
├── module.rds_instance
│   ├── provider[registry.terraform.io/hashicorp/null] ~> 2.0
│   ├── provider[registry.terraform.io/hashicorp/aws] ~> 2.0
│   ├── provider[registry.terraform.io/hashicorp/template] ~> 2.0
│   ├── module.dns_host_name
│       ├── provider[registry.terraform.io/hashicorp/local] ~> 1.2
│       └── provider[registry.terraform.io/hashicorp/aws] ~> 2.0
│   ├── module.final_snapshot_label
│   └── module.label
└── module.ssh_key_pair
    ├── provider[registry.terraform.io/hashicorp/null] ~> 2.1
    ├── provider[registry.terraform.io/hashicorp/aws] ~> 2.0
    ├── provider[registry.terraform.io/hashicorp/tls] ~> 2.0
    ├── provider[registry.terraform.io/hashicorp/local] ~> 1.3
    └── module.label
Providers required by state:
    provider[registry.terraform.io/-/template]
    provider[registry.terraform.io/hashicorp/aws]

Based on the modules i'm using here are the modules that needs to be changed from ~> 2.0 to >= 2.0

• terraform-aws-key-pair
• terraform-aws-rds
  • dns_host_name
• terraform-aws-alb
  • access_logs
    • s3_bucket

Expected Behavior

All the plugins/providers should have been installed without any issue

Steps to Reproduce

Use eks-node-group module with latest tag (0.13.0) with aws-alb and aws-rds modules with latest tags.

Environment (please complete the following information):

Anything that will help us triage the bug will help. Here are some ideas:

• OS: OSX
• Version: 10.15.7

Output terraform -version:

Terraform v0.13.5
+ provider registry.terraform.io/-/template v2.2.0
+ provider registry.terraform.io/hashicorp/kubernetes v1.13.3
+ provider registry.terraform.io/hashicorp/local v1.4.0
+ provider registry.terraform.io/hashicorp/null v2.1.2
+ provider registry.terraform.io/hashicorp/random v3.0.0
+ provider registry.terraform.io/hashicorp/template v2.2.0
+ provider registry.terraform.io/hashicorp/tls v2.2.0

Thanks.

[sivarita]

I had the same problem, the only version that I could run is the one with the tag 0.8.0, before that it only works with terraform 0.12

[osterman]

Sorry about that! We might have some pinning that needs updating. We have evolved our thinking on pinning and now require a minimum known working provider (>=) version and core version. We no longer recommend using (~>) and still have remnants of that. We will gladly accept and promptly review all PRs to correct pinning.

Ping us on slack if we don't respond in a timely manner.

[tirumerla]

Thanks @osterman. Raised PR's for the modules causing issues for aws plugin with version ~> 2.0

[Nuru]

I believe this has been fixed. If not, please open a new issue.