This module can be used to generate a Certificate Authority (CA) public key and the public and private keys of aTLS certificate signed by this CA. This certificate is meant to be used with private services, such as a Vaultcluster accessed solely within your AWS account. For publicly-accessible services, especially services you accessthrough a web browser, you should NOT use this module, and instead get certificates from a commercial CertificateAuthority, such as Let's Encrypt.

  1. Terraform Aws Example
  2. Generate Public Key For Terraform Aws Access
  3. Generate Public Key For Terraform Aws Server
  4. Generate Public Key For Terraform Aws Account
  5. Generate Public Key For Terraform Aws Jobs

A key pair is used to control login access to EC2 instances. Currently this resource requires an existing user-supplied key pair. This key pair's public key will be registered with AWS to allow logging-in to EC2 instances. When importing an existing key pair the public key material may be in any format supported by AWS. Tutorial and source code explaining how to manage AWS EC2 Instances and Security with Terraform. EC2 Instances and Resource Security. This is the continuation of a AWS Terraform demo to create a VPC in AWS with an EC2 instance connected to MariaDB database running in RDS using a single Terraform plan. Continue the demo, see: Terraform Setup and VPC Subnet Creation. Dec 06, 2017  and then reprovision again with a new key, for this, you will need to generate a key first: terraformdemo ssh-keygen -f terraformec2key Generating public/private rsa key pair. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in terraformec2key. Sep 26, 2018 Create New Key; Use Existing Key. You can create one key using AWS console and use the existing one which is already present as shown below. Now in your terraform code, you have to just use this key name in your configuration like this. Resource “awsinstance” “bastion” count = “1”. Dec 09, 2018  This module can be used to generate a Certificate Authority (CA) public key and the public and private keys of a TLS certificate signed by this CA. This certificate is meant to be used with private services, such as a Vault cluster accessed solely within your AWS account.

If you're unfamiliar with how TLS certificates work, check out the Background section.

I'm using the following: Windows 10 Visual Studio Code v1.17.0 Terraform v0.10.3 AWS I'm very new to Terraform. I've been reading a series of posts here which have been very helpful I'm strug.

Quick start

  1. Copy this module to your computer.

  2. Open variables.tf and fill in the variables that do not have a default.

  3. DO NOT configure Terraform remote state storage for this code. You do NOT want to store the state files as theywill contain the private keys for the certificates.

  4. Run terraform apply. The output will show you the paths to the generated files:

  5. Delete your local Terraform state:

    The Terraform state will contain the private keys for the certificates, so it's important to clean it up!

  6. To inspect a certificate, you can use OpenSSL:

Now that you have your TLS certs, check out the next section for how to use them.

Using TLS certs

Terraform Aws Example

Distributing TLS certs to your servers

Distribute the private and public keys (the files at private_key_file_path and public_key_file_path) to theservers that will use them to handle TLS connections (e.g. Vault). For example, to run Vault with the run-vaultmodule, you need to pass it the TLS certs:

We strongly recommend encrypting the private key file while it's in transit to the servers that will use it. Hereare some of the ways you could do this:

  • Encrypt the certificate using KMS and include the encrypted files in the AMI for yourVault servers. Give those servers an IAM role that lets them access the same KMS key and decrypt their certs justbefore booting.
  • Put your TLS cert in a secure S3 Bucket with encryption enabled. Give your Vault servers an IAM role that allows themto download the certs from the S3 bucket just before booting.
  • Manually upload the certificate to each EC2 Instance with scp.

Distributing TLS certs to your clients

Distribute the CA public key (the file at ca_public_key_file_path) to any clients of those services so they canvalidate the server's TLS cert. Without the CA public key, the clients will reject any TLS connections:

Most TLS clients offer a way to explicitly specify extra public keys that you want to trust. For example, withVault, you do this via the -ca-cert argument:

As an alternative, you can configure the certificate trust on your server so that all TLS clients trust your CApublic key by running the update-certificate-store module on your server. Onceyou do that, your system will trust the public key without having to pass it in explicitly:

Background

How TLS/SSL Works

The industry-standard way to add encryption for data in motion is to use TLS (the successor to SSL). There are manyexamples online explaining how TLS works, but here are the basics:

  • Some entity decides to be a 'Certificate Authority' ('CA') meaning it will issue TLS certificates to websites orother services

  • An entity becomes a Certificate Authority by creating a public/private key pair and publishing the public portion(typically known as the 'CA Cert'). The private key is kept under the tightest possible security since anyone whopossesses it could issue TLS certificates as if they were this Certificate Authority!

  • In fact, the consequences of a CA's private key being compromised are so disastrous that CA's typically create an'intermediate' CA keypair with their 'root' CA key, and only issue TLS certificates with the intermediate key.

  • Your client (e.g. a web browser) can decide to trust this newly created Certificate Authority by including its CACert (the CA's public key) when making an outbound request to a service that uses the TLS certificate.

    A keygen is made available through crack groups free to download. When writing a keygen, the author will identify the algorithm used in creating a valid cd key. Once the algorithm is identified they can then incorporate this into the keygen. If you search a download site for Myeclipse 10.7.1 Keygen, this often means your download includes a keygen. Key

  • When CAs issue a TLS certificate ('TLS cert') to a service, they again create a public/private keypair, but this timethe public key is 'signed' by the CA. That public key is what you view when you click on the lock icon in a webbrowser and what a service 'advertises' to any clients such as web browsers to declare who it is. When we say thatthe CA signed a public key, we mean that, cryptographically, any possessor of the CA Cert can validate that this sameCA issued this particular public key.

  • The public key is more generally known as the TLS cert.

  • The private key created by the CA must be kept secret by the service since the possessor of the private key can'prove' they are whoever the TLS cert (public key) claims to be as part of the TLS protocol.

  • How does that 'proof' work? Well, your web browser will attempt to validate the TLS cert in two ways:

    • First, it will ensure this public key (TLS cert) is in fact signed by a CA it trusts.
    • Second, using the TLS protocol, your browser will encrypt a message with the public key (TLS cert) that only thepossessor of the corresponding private key can decrypt. In this manner, your browser will be able to come up with asymmetric encryption key it can use to encrypt all traffic for just that one web session.

  • Now your client/browser has:

    • declared which CA it will trust
    • verified that the service it's connecting to possesses a certificate issued by a CA it trusts
    • used that service's public key (TLS cert) to establish a secure session

Commercial or Public Certificate Authorities

For public services like banks, healthcare, and the like, it makes sense to use a 'Commercial CA' like Verisign, Thawte,or Digicert, or better yet a widely trusted but free service like Let's Encrypt. That'sbecause every web browser comes pre-configured with a set of CA's that it trusts. This means the client connecting tothe bank doesn't have to know anything about CA's at all. Instead, their web browser is configured to trust the CA thathappened to issue the bank's certificate.

Connecting securely to private services is similar to connecting to your bank's website over TLS, with one primarydifference: We want total control over the CA.

Imagine if we used a commercial CA to issue our private TLS certificate and that commercial or public CA--which wedon't control--were compromised. Now the attackers of that commercial or public CA could impersonate our private server.And indeed, ithashappenedmultiple times.

How We'll Generate a TLS Cert for Private Services

One option is to be very selective about choosing a commercial CA, but to what benefit? What we want instead isassurance that our private service really was launched by people we trust. Those same people--let's call them our'operators'--can become their own CA and generate their own TLS certificate for the private service.

Sure, no one else in the world will trust this CA, but we don't care because we only need our organization to trustthis CA.

So here's our strategy for issuing a TLS Cert for a private service:

Generate Public Key For Terraform Aws Access

  1. Create our own CA.

    • If a client wishes to trust our CA, they need only reference this CA public key.
    • We'll deal with the private key in a moment.

  2. Using our CA, issue a TLS Certificate for our private service.

    • Create a public/private key pair for the private service, and have the CA sign the public key.
    • This means anyone who trusts the CA will trust that the possessor of the private key that corresponds to this publickey is who they claim to be.
    • We will be extremely careful with the TLS private key since anyone who obtains it can impersonate our privateservice! For this reason, we recommend immediately encrypting the private key withKMS.

  3. Freely advertise our CA's public key to all internal services.

    • Any service that wishes to connect securely to our private service will need our CA's public key so it can declarethat it trusts this CA, and thereby the TLS cert it issued to the private service.

  4. Throw away the CA private key.

    • By erasing a CA private key it's impossible for the CA to be compromised, because there's no private key to steal!
    • Future certs can be generated with a new CA.

[ aws . iam ]

Description¶

Uploads an SSH public key and associates it with the specified IAM user.

The SSH public key uploaded by this operation can be used only for authenticating the associated IAM user to an AWS CodeCommit repository. For more information about using SSH keys to authenticate to an AWS CodeCommit repository, see Set up AWS CodeCommit for SSH Connections in the AWS CodeCommit User Guide .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

Synopsis¶

Options¶

--user-name (string)

The name of the IAM user to associate the SSH public key with.

This parameter allows (through its regex pattern ) a string of characters consisting of upper and lowercase alphanumeric characters with no spaces. You can also include any of the following characters: _+=,.@-

--ssh-public-key-body (string)

The SSH public key. The public key must be encoded in ssh-rsa format or PEM format. The minimum bit-length of the public key is 2048 bits. For example, you can generate a 2048-bit key, and the resulting PEM file is 1679 bytes long.

The regex pattern used to validate this parameter is a string of characters consisting of the following:

  • Any printable ASCII character ranging from the space character (u0020 ) through the end of the ASCII character range
  • The printable characters in the Basic Latin and Latin-1 Supplement character set (through u00FF )
  • The special characters tab (u0009 ), line feed (u000A ), and carriage return (u000D )
Aws

--cli-input-json (string)Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string)Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Examples¶

To upload an SSH public key and associate it with a user

The following upload-ssh-public-key command uploads the public key found in the file 'sshkey.pub' and attaches it to the user 'sofia'.

Output:

For more information about how to generate keys in a format suitable for this command, see `SSH and Linux, macOS, or Unix: Set Up the Public and Private Keys for Git and CodeCommit`_ or SSH and Windows: Set Up the Public and Private Keys for Git and CodeCommit`_in the *AWS CodeCommit User Guide*. _`SSH and Linux, macOS, or Unix: Set Up the Public and Private Keys for Git and CodeCommit: https://docs.aws.amazon.com/codecommit/latest/userguide/setting-up-ssh-unixes.html#setting-up-ssh-unixes-keys. SSH and Windows: Set Up the Public and Private Keys for Git and CodeCommit: https://docs.aws.amazon.com/codecommit/latest/userguide/setting-up-ssh-windows.html#setting-up-ssh-windows-keys-windows

Output¶

SSHPublicKey -> (structure)

Contains information about the SSH public key.

Generate Public Key For Terraform Aws Server

UserName -> (string)

The name of the IAM user associated with the SSH public key.

SSHPublicKeyId -> (string)

Fingerprint -> (string)

The MD5 message digest of the SSH public key.

SSHPublicKeyBody -> (string)

Status -> (string)

The status of the SSH public key. Active means that the key can be used for authentication with an AWS CodeCommit repository. Inactive means that the key cannot be used.

Generate Public Key For Terraform Aws Account

Terraform

UploadDate -> (timestamp)

Generate Public Key For Terraform Aws Jobs

The date and time, in ISO 8601 date-time format , when the SSH public key was uploaded.