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Diff for: ‎.gitignore

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# If you prefer the allow list template instead of the deny list, see community template:
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# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
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#
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# Binaries for programs and plugins
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*.exe
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*.exe~
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*.dll
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*.so
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*.dylib
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# Test binary, built with `go test -c`
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*.test
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# Output of the go coverage tool, specifically when used with LiteIDE
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*.out
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# Dependency directories (remove the comment below to include it)
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vendor/
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# Go workspace file
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go.work
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# Terrafrom files
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*.tfstate
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*.tfstate.backup
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*.tfvars
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.terraform/
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.terraform.lock.hcl
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# Secret files
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*credential*
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project-gcp.txt

Diff for: ‎README.md

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# Proof of concepts related to multi-cloud networks
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## Proof of concepts related to multi-cloud networks
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We will explore the functions and necessary properties such as creation, diary, update, and deletion of resources/services for configuring a multi-cloud network.
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### How to use this ?
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TBD

Diff for: ‎aws/main.tf

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# Define the required version of Terraform and the providers that will be used in the project
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terraform {
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required_version = "1.5.5"
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required_providers {
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# AWS provider is specified with its source and version
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aws = {
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source = "hashicorp/aws"
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version = "~> 5.21"
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}
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}
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}
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# Provider block for AWS specifies the configuration for the provider
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provider "aws" {
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region = "ap-northeast-2"
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}
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Diff for: ‎aws/networking.tf

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# Define the VPC resource block
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resource "aws_vpc" "example_vpc" {
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cidr_block = "192.168.64.0/22"
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tags = {
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Name = "terraform-101"
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}
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}
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# # Define the internet gateway resource block and attach it to the VPC
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# resource "aws_internet_gateway" "example_igw" {
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# vpc_id = aws_vpc.example_vpc.id
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# }
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# # Define the route table resource block and add a route to the internet gateway
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# resource "aws_route_table" "example_rt" {
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# vpc_id = aws_vpc.example_vpc.id
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# route {
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# cidr_block = "0.0.0.0/0"
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# gateway_id = aws_internet_gateway.example_igw.id
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# }
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# }
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# Define the subnets resource blocks with the desired CIDR blocks and associate them with the route table
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resource "aws_subnet" "example_subnet_1" {
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vpc_id = aws_vpc.example_vpc.id
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cidr_block = "192.168.64.0/24"
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map_public_ip_on_launch = true
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tags = {
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Name = "example_subnet_1"
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}
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}
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resource "aws_subnet" "example_subnet_2" {
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vpc_id = aws_vpc.example_vpc.id
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cidr_block = "192.168.65.0/24"
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map_public_ip_on_launch = true
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tags = {
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Name = "example_subnet_2"
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}
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}
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# # Associate the subnets with the route table
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# resource "aws_route_table_association" "example_rta_1" {
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# subnet_id = aws_subnet.example_subnet_1.id
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# route_table_id = aws_route_table.example_rt.id
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# }
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# resource "aws_route_table_association" "example_rta_2" {
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# subnet_id = aws_subnet.example_subnet_2.id
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# route_table_id = aws_route_table.example_rt.id
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# }

Diff for: ‎docs/2023-10-06-how-to-install-terraform.md

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# How to install Terraform
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### Installation environment
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- OS: Ubuntu 20.04.6 LTS (on WSL2)
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- Terraform: v1.5.5 (I'm going to install Terrfarom v1.5.5 due to license issue.)
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- See [HashiCorp adopts Business Source License](https://www.hashicorp.com/blog/hashicorp-adopts-business-source-license)
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- See [7. What products will be covered by BSL 1.1 in their next release?](https://www.hashicorp.com/license-faq#products-covered-by-bsl)
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### Install Terraform
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```bash
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# Ensure that your system is up to date
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sudo apt-get update
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# Ensure that you have installed the dependencies, such as `gnupg`, `software-properties-common`, `curl`, and unzip packages.
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sudo apt-get install -y software-properties-common gnupg2 curl unzip
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### Install Terraform on Linux from tarball
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# Set Terraform version
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TERRAFORM_VERSION="1.5.5"
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# Get tarball
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wget https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip
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# Unzip the tarball
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unzip terraform_${TERRAFORM_VERSION}_linux_amd64.zip
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# Move the terraform binary to `/usr/local/bin`
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sudo mv terraform /usr/local/bin/
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# Make the toll acccessible to all user accounts
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which terraform
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# Check the version of Terraform installed
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terraform --version
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```
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#### Verify the installation
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```bash
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terraform -help
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```
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#### Enable tab completion
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If you use either Bash or Zsh, you can enable tab completion for Terraform commands.
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To enable autocomplete, first ensure that a config file exists for your chosen shell.
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```bash
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touch ~/.bashrc
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```
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Then install the autocomplete package.
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```bash
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terraform -install-autocomplete
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```
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### Appendix
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Ref: [Install Terraform](https://developer.hashicorp.com/terraform/tutorials/aws-get-started/install-cli)(official guide to install the latest version of Terraform)
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```bash
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# Ensure that your system is up to date and you have installed the `gnupg`, `software-properties-common`, and `curl` packages installed. You will use these packages to verify HashiCorp's GPG signature and install HashiCorp's Debian package repository.
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sudo apt-get update && sudo apt-get install -y gnupg software-properties-common
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# Install the HashiCorp [GPG key](https://apt.releases.hashicorp.com/gpg "HashiCorp GPG key").
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wget -O- https://apt.releases.hashicorp.com/gpg | \
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gpg --dearmor | \
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sudo tee /usr/share/keyrings/hashicorp-archive-keyring.gpg
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# Verify the key's fingerprint.
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gpg --no-default-keyring \
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--keyring /usr/share/keyrings/hashicorp-archive-keyring.gpg \
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--fingerprint
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# Add the official HashiCorp repository to your system. The `lsb_release -cs` command finds the distribution release codename for your current system, such as `buster`, `groovy`, or `sid`.
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echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] \
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https://apt.releases.hashicorp.com $(lsb_release -cs) main" | \
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sudo tee /etc/apt/sources.list.d/hashicorp.list
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# Download the package information from HashiCorp.
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sudo apt update
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# Install Terraform from the new repository.
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sudo apt-get install terraform
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```
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#### Verify the installation
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```bash
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terraform -help
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```
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#### Enable tab completion
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If you use either Bash or Zsh, you can enable tab completion for Terraform commands.
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To enable autocomplete, first ensure that a config file exists for your chosen shell.
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```bash
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touch ~/.bashrc
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```
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Then install the autocomplete package.
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```bash
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terraform -install-autocomplete
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```

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