#terraform-0_12 - October 2019 | Slack Archive

41 messages

Discuss upgrading to terraform 0.12

Archive: https://archive.sweetops.com/terraform-0_12/

Sep 2019

October 2019

Nov 2019

Andriy Knysh (Cloud Posse)over 6 years ago

For those interested in the EKS modules, we’ve converted them to TF 0.12:

https://github.com/cloudposse/terraform-aws-ec2-autoscale-group
https://github.com/cloudposse/terraform-aws-eks-workers
https://github.com/cloudposse/terraform-aws-eks-cluster/releases/tag/0.5.0

Andriy Knysh (Cloud Posse)over 6 years ago

New features:

Andriy Knysh (Cloud Posse)over 6 years ago(edited)


Waiting for worker nodes to join the EKS cluster                                                                                                                 
Worker Node ip-172-16-119-111.us-east-2.compute.internal has joined the EKS cluster at 2019-10-01 00:47:51 +0000 UTC                                             
Worker Node ip-172-16-155-103.us-east-2.compute.internal has joined the EKS cluster at 2019-10-01 00:48:01 +0000 UTC                                             
All worker nodes have joined the EKS cluster

Erik Osterman (Cloud Posse)over 6 years ago

amazing job as usual @Andriy Knysh (Cloud Posse)

Erik Osterman (Cloud Posse)over 6 years ago

really like the outcome

oscarover 6 years ago

👏 🙌

Andriy Knysh (Cloud Posse)over 6 years ago

this is a very interesting article https://kubedex.com/90-days-of-aws-eks-in-production

Andriy Knysh (Cloud Posse)over 6 years ago

the additional settings it describes can be set here

Andriy Knysh (Cloud Posse)over 6 years ago

https://github.com/cloudposse/terraform-aws-eks-workers/blob/master/variables.tf#L380-L390

Andriy Knysh (Cloud Posse)over 6 years ago

https://github.com/cloudposse/terraform-aws-eks-workers/blob/master/userdata.tpl#L6

Andriy Knysh (Cloud Posse)over 6 years ago

When you create an EKS cluster, the user that actually creates the cluster is the only one that can access the cluster by default.  Even IAM Administrator users can't login.  This seems to be due to the way AWS bootstraps the cluster behind the scenes in AWS-land.  Once the cluster is up, you can add users as per normal as you might in any Kubernetes setup.

My recommendation, in a production environment, to use an IAM role to create the cluster.

Andriy Knysh (Cloud Posse)over 6 years ago

which you can do here https://github.com/cloudposse/terraform-aws-eks-cluster/blob/master/variables.tf#L126

tweetyixover 6 years ago

Hi, does anybody know a Ruby hack/gem to load HCL2 files into a ruby objects?

PePe Amengualover 6 years ago(edited)

Hi, I was trying to dynamically create some resources in 0.12 and I I do not know if this is possible :

resource "aws_vpc_endpoint_route_table_association" "main_us_east_2" {
  count           = length(local.private_subnet_ids_us_east_2)
  route_table_id  = HERE I need the route _table_id for the subnet_id[count.index]
  vpc_endpoint_id = aws_vpc_endpoint.s3_us_east_2.id
  provider        = aws.primary
}

is it possible to do something like that ? like an inline data resource lookup ?

Sharanyaover 6 years ago

Create Jenkinsfile to deploy UI code to S3 bucket. Any help ?

PePe Amengualover 6 years ago

you need to use something like withAws jenkins plugin and then the aws s3 sync command, there is many examples out there on how to do this

PePe Amengualover 6 years ago

Is it possible in 0.12 to create resources in two regions without having to run TF twice passing the region as a var ?

PePe Amengualover 6 years ago(edited)

like provider = [ aws.primary, aws.secondary]

Sharanyaover 6 years ago

Lookin for a terraform Module For - RDS- Instance Configuration : SQL Server Standard 2017, 2017 v14

Gochoover 6 years ago

Hi @all

I'm wondering how to deal with terraform 0.12 update.

Say I have 3 terraform repositories, A, B and ...tadam : C!
Both B & C rely on A states (mututlizaton of some components)
/--------B
A ------/
\---------- C

(Please note my graphical skills 🙂 )

All repositories are in terraform 0.11.
What would be the best way to achieve that (and avoid conflicts) ?
Can I simply update B then A and C ? Or should I take care about a particular order ?

Is it possible to do it in multiple time ? like doing repo A first while still updating repos B and C (so a 0.11 repo references a 0.12 state), then deal with others repos few weeks/months later.

The main point is that I would avoid any compatibility issue

Any advice is welcome :)

Igorover 6 years ago

Is there a good pattern for overriding input variables

Igorover 6 years ago

For example, if I have a big map as a default variable on the module, and I want to provide an override to a part of that map, instead of giving the whole list in?

Andriy Knysh (Cloud Posse)over 6 years ago

you can make the var an object with specified item types. For those items that you don’t want to provide a specific type, you can use any. For default values that you don’t want to specify, you can use null

Andriy Knysh (Cloud Posse)over 6 years ago

in this case you could provide a part of object as input with only the necessary fields specified

lorenover 6 years ago

my gosh, i love love love for_each and for expressions ❤️

winterover 6 years ago

In the dynamic content block, any ideas on how to add if-else condition ?

Andriy Knysh (Cloud Posse)over 6 years ago

many ways of doing it, one example https://github.com/cloudposse/terraform-aws-ecs-alb-service-task/blob/master/main.tf#L247

Andriy Knysh (Cloud Posse)over 6 years ago

(for_each can iterate not only over the existing collection, but over a sequence you create using some expressions)

winterover 6 years ago(edited)

Thanks @Andriy Knysh (Cloud Posse) , I am looking for something like
for_each = [for s in [{"name":"abc"},{"name":"xyz"}]
if(s.name==abc)
{content {...}}
if(s.name=xyz)
{content{..}}

winterover 6 years ago

What is the variable type for this kind of data in terraform?
security_group_rules:
- from_port: 49152
to_port: 65535
protocol: tcp
source: [10.0.0.0/8,172.16.0.0/12,192.168.0.0/16]
- from_port: 0
to_port: 0
protocol: "-1"
source: [10.0.0.0/8,172.16.0.0/12,192.168.0.0/16]
- from_port: 53
to_port: 53
protocol: udp
source: source: [10.0.0.0/8,172.16.0.0/12,192.168.0.0/16]

winterover 6 years ago

Thank you.

lorenover 6 years ago

new gotcha introduced in tf 0.12.11... bummed. i really was liking the ability to use the 0-index everywhere to reference attributes of optional resources... linking straight to the workaround: https://github.com/hashicorp/terraform/issues/23222#issuecomment-547462883

PePe Amengualover 6 years ago(edited)

@Andriy Knysh (Cloud Posse) I’m trying the new version : https://github.com/cloudposse/terraform-aws-ecs-alb-service-task?ref=0.17.0 and I’m setting a ALB so I added this :

ecs_load_balancers                = [
  {
    container_name = module.webworker_server_label.id
    container_port = var.container_port
    target_group_arn = local.alb_default_target_group_arn
  }

that is how is supposed to look like ?

Andriy Knysh (Cloud Posse)over 6 years ago(edited)

ecs_load_balancers                = [
  {
    container_name = module.webworker_server_label.id
    container_port = var.container_port
    target_group_arn = local.alb_default_target_group_arn
    elb_name = null
  }

Andriy Knysh (Cloud Posse)over 6 years ago(edited)

set elb_name to null since it’s in the var definition, but is not required for ALB

Andriy Knysh (Cloud Posse)over 6 years ago

elb_name - (Required for ELB Classic) The name of the ELB (Classic) to associate with the service.
target_group_arn - (Required for ALB/NLB) The ARN of the Load Balancer target group to associate with the service.

PePe Amengualover 6 years ago

got it working

PePe Amengualover 6 years ago

awesome

PePe Amengualover 6 years ago

I had a bit of trouble with the autoscaling group module

PePe Amengualover 6 years ago(edited)

block_device_mappings = [
    {
      device_name = var.device_name
      no_device    = false
      virtual_name = var.device_name
      ebs = {
          delete_on_termination = true
          encrypted = true
          iops = 0
          snapshot_id = ""
          kms_key_id = data.aws_kms_key.cluster.arn
          volume_size = var.volume_size
          volume_type = var.volume_type
      }
    }
  ]

PePe Amengualover 6 years ago

after many iterations 🙂

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