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Category: Terraform

[AWS] Look into Data Transfer on AWS

Posted on May 30, 2023 By nim No Comments on [AWS] Look into Data Transfer on AWS
[AWS] Look into Data Transfer on AWS

1) Types Of Data Transfer (DT) Internet Data Transfer cost Out to the Internet depends on the AWS region Up to 100 Gb of DT Out per month is free (under Free Tier) Data Transfer cost In from the Internet is free Between AWS Regions Data Transfer out to another AWS region depends on the…

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AWS - Amazon Web Service

[EKS/Pods] Why can not the pod on EKS call http://169.254.169.254/latest/api/token

Posted on May 15, 2023May 15, 2023 By nim No Comments on [EKS/Pods] Why can not the pod on EKS call http://169.254.169.254/latest/api/token
[EKS/Pods] Why can not the pod on EKS call http://169.254.169.254/latest/api/token

Sau khi mày mò 1 thứ trên argo workflow mình phát hiện là.Nếu pod muốn lấy tocken của EC2 (Con node mà đang chưa pod đó) thì nó sẽ call vào http://169.254.169.254/latest/api/token. NHưng thường sẽ bị timout. Vậy thì chúng ta increase the max allowed hops to 2 Bạn tưởng tượng là nếu node gọi…

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AWS - Amazon Web Service

[Terraform] Manage Secrets in Terraform (2023)

Posted on May 1, 2023May 1, 2023 By nim No Comments on [Terraform] Manage Secrets in Terraform (2023)
[Terraform] Manage Secrets in Terraform (2023)

Làm sao để quán lý Secrets trong terraform.

Terraform

[RabbitMQ/AWS] Install RabbitMQ on AWS based on Amazon MQ.

Posted on April 22, 2023August 19, 2023 By nim No Comments on [RabbitMQ/AWS] Install RabbitMQ on AWS based on Amazon MQ.
[RabbitMQ/AWS] Install RabbitMQ on AWS based on Amazon MQ.

Refer tohttps://github.com/dasmeta/terraform-aws-rabbitmqhttps://github.com/vainkop/terraform-aws-rabbitmq 1) Create VPC Đầu tiên chúng ta cần tạo vpc: Ở đây mình sử dụng vpc module để create 1 public subnet và 1 private subnet 2) RabbitMQ on AWS Tạo rabbitmq Bạn sẽ cần tạo rabbitmq thông qua Resource: aws_mq_brokerhttps://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/mq_broker Và bạn có thể tạo security Group thông qua module:https://registry.terraform.io/modules/terraform-aws-modules/security-group/aws/latest Và sau…

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AWS - Amazon Web Service

[Terraform] DRY in Terraform Configurations With Dynamic Blocks

Posted on April 21, 2023April 21, 2023 By nim No Comments on [Terraform] DRY in Terraform Configurations With Dynamic Blocks
[Terraform] DRY in Terraform Configurations With Dynamic Blocks

Refer to: https://spacelift.io/blog/terraform-dynamic-blocks The Don’t Repeat Yourself (DRY) principle of software development states that code should be written once and not repeated. An important goal of the DRY principle is to improve the maintainability of code. See how you can keep your configuration DRY with Terragrunt on Spacelift. Some Terraform resources include repeatable nested blocks in their arguments….

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Terraform

[AWS] If Ec2 connects to S3, Will it go through the internet or the internal network of AWS?

Posted on April 9, 2023April 9, 2023 By nim No Comments on [AWS] If Ec2 connects to S3, Will it go through the internet or the internal network of AWS?
[AWS] If Ec2 connects to S3, Will it go through the internet or the internal network of AWS?

ChatGPT: When an Amazon EC2 instance needs to access Amazon S3, the traffic will typically stay within the internal AWS network rather than going out to the public internet. This is because Amazon S3 and Amazon EC2 are both services provided by AWS, and AWS provides private connectivity between these services through its Virtual Private…

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AWS - Amazon Web Service

Experiences for IP Addresses Shortage on EKS Clusters

Posted on March 29, 2023March 29, 2023 By nim No Comments on Experiences for IP Addresses Shortage on EKS Clusters
Experiences for IP Addresses Shortage on EKS Clusters

Link: https://medium.com/compass-true-north/experiences-for-ip-addresses-shortage-on-eks-clusters-a740f56ac2f5 In a fast-growing company, like Compass, things may become challenging for Cloud infrastructure teams. As serving more and more customers, many backend services scaled up in our Kubernetes clusters. Meanwhile, a variety of new backend services went online to satisfy new requirements. Recently, a big challenge for our Cloud Engineering team in Compass…

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AWS - Amazon Web Service

[Kubernetes] volume node affinity conflict

Posted on March 14, 2023November 24, 2023 By nim No Comments on [Kubernetes] volume node affinity conflict
[Kubernetes] volume node affinity conflict

Hôm này bạn của mình thực hiện upgrade eks cluster.Trong eks cluster có 1 deployment sử dụng PVC thông qua EBS Mà chúng bị lỗi này: Pod này thì là linux và mình đang có 2 node linux. Mình có đọc được bài viết này.https://pet2cattle.com/2022/04/volume-affinity-conflicthttps://copyprogramming.com/howto/kubernetes-pod-warning-1-node-s-had-volume-node-affinity-conflict Lúc này đơn giản chúng ta sẽ tăng số node…

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AWS - Amazon Web Service

[Terraform] Error: InvalidPermission.Duplicate: the specified rule

Posted on March 14, 2023 By nim No Comments on [Terraform] Error: InvalidPermission.Duplicate: the specified rule
[Terraform] Error: InvalidPermission.Duplicate: the specified rule

Remove Inbound Rule in the Security Group Lỗi sau là mình gặp sau khi upgrade module eks từ 1.18 -> 1,19 Ở bản 1.19 đã được thêm như là mặc định https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/node_groups.tf#L137-L145 Giờ mình cần xóa rule inbound này.https://bobbyhadz.com/blog/aws-cli-remove-security-group-rule Bạn chịu khó list tất cả ra, xong dựa vào format bên dướiĐiểm đặc biệt đây…

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AWS - Amazon Web Service

[terraform] Error: InvalidPermission.Duplicate: the specified rule

Posted on March 13, 2023 By nim No Comments on [terraform] Error: InvalidPermission.Duplicate: the specified rule
[terraform] Error: InvalidPermission.Duplicate: the specified rule

Lâu lâu run lại terraform cũ cài bị lỗi trên. https://github.com/hashicorp/terraform/pull/2376 Bạn cũng sẽ cân delete Rule đó trong Security Group.

AWS - Amazon Web Service

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