This folder defines a Terraform module, which you can use in your
code by adding a module configuration and setting its source parameter to URL of this folder:
module"kapacitor_cluster" {
# TODO: replace <VERSION> with the latest version from the releases page: https://github.com/gruntwork-io/terraform-aws-influx/releases
source = "github.com/gruntwork-io/terraform-aws-influx//modules/kapacitor-server?ref=<VERSION>"# Specify the ID of the Kapacitor AMI. You should build this using the scripts in the install-kapacitor module.
ami_id = "ami-abcd1234"# Configure and start Kapacitor during boot.
user_data = <<-EOF
#!/bin/bash
sudo systemctl start kapacitor
EOF
# ... See variables.tf for the other parameters you must define for the kapacitor-server module
}
Note the following parameters:
source: Use this parameter to specify the URL of the kapacitor-server module. The double slash (//) is
intentional and required. Terraform uses it to specify subfolders within a Git repo (see module
sources). The ref parameter specifies a specific Git tag in
this repo. That way, instead of using the latest version of this module from the master branch, which
will change every time you run Terraform, you're using a fixed version of the repo.
ami_id: Use this parameter to specify the ID of an Kapacitor Amazon Machine Image
(AMI) to deploy on each server in the cluster. You
should install Kapacitor the scripts in the
install-kapacitor module.
user_data: Use this parameter to specify a User
Data script that each
server will run during boot. This is where you can use the
run-kapacitor
script to configure and run Kapacitor.
You can find the other parameters in variables.tf.
Check out the examples folder for
fully-working sample code.
This module runs a single Kapacitor node on top of an Auto Scaling Group (ASG) to allow for auto-recovery. The EC2
Instance should be running an AMI that has Kapacitor installed via the
install-kapacitor
module. You pass in the ID of the AMI to run using the ami_id input parameter.
Security Group
The EC2 Instance in the ASG has a Security Group that allows minimal connectivity:
All outbound requests
Inbound SSH access from the CIDR blocks and security groups you specify
The Security Group ID is exported as an output variable which you can use with the
kapacitor-security-group-rules
module to open up all the ports necessary for Kapacitor.
IAM Role and Permissions
The EC2 Instance in the ASG has an IAM Role attached.
The IAM Role ARN and ID are exported as output variables if you need to add additional permissions.
How do you roll out updates?
This module currently doesn't support updating the version of Kapacitor installed across the cluster. You can however follow
this guide to manually perform the upgrade.
Dedicated instances
If you wish to use dedicated instances, you can set the tenancy parameter to "dedicated" in this module.
Encryption
This module does not currently support specifying encryption information. The official documentation contains a guide for enabling SSL.
Security groups
This module attaches a security group to each EC2 Instance that allows inbound requests as follows:
SSH: For the SSH port (default: 22), you can use the allowed_ssh_cidr_blocks parameter to control the list of CIDR blocks that will be allowed access. You can use
the allowed_inbound_ssh_security_group_ids parameter to control the list of source Security Groups that will be
allowed access.
The ID of the security group is exported as an output variable, which you can use with the
kapacitor-security-group-rules
module to open up all the ports necessary for Kapacitor.
SSH access
You can associate an EC2 Key Pair with each
of the EC2 Instances in this cluster by specifying the Key Pair's name in the ssh_key_name variable. If you don't
want to associate a Key Pair with these servers, set ssh_key_name to an empty string.
Questions? Ask away.
We're here to talk about our services, answer any questions, give advice, or just to chat.
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class=\"preview__body--title\" id=\"kapacitor-server\">Kapacitor Server</h1><div class=\"preview__body--border\"></div><p>This folder contains a <a href=\"https://www.terraform.io/\" class=\"preview__body--description--blue\" target=\"_blank\">Terraform</a> module to deploy an <a href=\"https://www.influxdata.com/time-series-platform/kapacitor/\" class=\"preview__body--description--blue\" target=\"_blank\">Kapacitor Enterprise</a> cluster in <a href=\"https://aws.amazon.com/\" class=\"preview__body--description--blue\" target=\"_blank\">AWS</a> on top of an Auto Scaling Group.\nThe idea is to create an <a href=\"http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html\" class=\"preview__body--description--blue\" target=\"_blank\">Amazon Machine Image (AMI)</a>\nthat has Kapacitor binaries installed using the <a href=\"/repos/v0.1.1/terraform-aws-influx/modules/install-kapacitor\" class=\"preview__body--description--blue\">install-kapacitor</a> module.</p>\n<h2 class=\"preview__body--subtitle\" id=\"how-do-you-use-this-module\">How do you use this module?</h2>\n<p>This folder defines a <a href=\"https://www.terraform.io/docs/modules/usage.html\" class=\"preview__body--description--blue\" target=\"_blank\">Terraform module</a>, which you can use in your\ncode by adding a <code>module</code> configuration and setting its <code>source</code> parameter to URL of this folder:</p>\n<pre><span class=\"hljs-keyword\">module</span> <span class=\"hljs-string\">\"kapacitor_cluster\"</span> {\n <span class=\"hljs-comment\"># <span class=\"hljs-doctag\">TODO:</span> replace <VERSION> with the latest version from the releases page: https://github.com/gruntwork-io/terraform-aws-influx/releases</span>\n source = <span class=\"hljs-string\">\"github.com/gruntwork-io/terraform-aws-influx//modules/kapacitor-server?ref=<VERSION>\"</span>\n\n <span class=\"hljs-comment\"># Specify the ID of the Kapacitor AMI. You should build this using the scripts in the install-kapacitor module.</span>\n ami_id = <span class=\"hljs-string\">\"ami-abcd1234\"</span>\n\n <span class=\"hljs-comment\"># Configure and start Kapacitor during boot.</span>\n user_data = <<-EOF\n <span class=\"hljs-comment\">#!/bin/bash</span>\n sudo systemctl start kapacitor\n EOF\n\n <span class=\"hljs-comment\"># ... See variables.tf for the other parameters you must define for the kapacitor-server module</span>\n}\n</pre>\n<p>Note the following parameters:</p>\n<ul>\n<li>\n<p><code>source</code>: Use this parameter to specify the URL of the kapacitor-server module. The double slash (<code>//</code>) is\nintentional and required. Terraform uses it to specify subfolders within a Git repo (see <a href=\"https://www.terraform.io/docs/modules/sources.html\" class=\"preview__body--description--blue\" target=\"_blank\">module\nsources</a>). The <code>ref</code> parameter specifies a specific Git tag in\nthis repo. That way, instead of using the latest version of this module from the <code>master</code> branch, which\nwill change every time you run Terraform, you're using a fixed version of the repo.</p>\n</li>\n<li>\n<p><code>ami_id</code>: Use this parameter to specify the ID of an Kapacitor <a href=\"http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html\" class=\"preview__body--description--blue\" target=\"_blank\">Amazon Machine Image\n(AMI)</a> to deploy on each server in the cluster. You\nshould install Kapacitor the scripts in the\n<a href=\"/repos/v0.1.1/terraform-aws-influx/modules/install-kapacitor\" class=\"preview__body--description--blue\">install-kapacitor</a> module.</p>\n</li>\n<li>\n<p><code>user_data</code>: Use this parameter to specify a <a href=\"http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/user-data.html#user-data-shell-scripts\" class=\"preview__body--description--blue\" target=\"_blank\">User\nData</a> script that each\nserver will run during boot. This is where you can use the\n<a href=\"/repos/v0.1.1/terraform-aws-influx/modules/run-kapacitor\" class=\"preview__body--description--blue\">run-kapacitor</a>\nscript to configure and run Kapacitor.</p>\n</li>\n</ul>\n<p>You can find the other parameters in <a href=\"/repos/v0.1.1/terraform-aws-influx/modules/kapacitor-server/variables.tf\" class=\"preview__body--description--blue\">variables.tf</a>.</p>\n<p>Check out the <a href=\"/repos/v0.1.1/terraform-aws-influx/examples\" class=\"preview__body--description--blue\">examples folder</a> for\nfully-working sample code.</p>\n<h2 class=\"preview__body--subtitle\" id=\"whats-included-in-this-module\">What's included in this module?</h2>\n<p>This module creates the following:</p>\n<ul>\n<li><a href=\"#auto-scaling-group\" class=\"preview__body--description--blue\">Auto Scaling Group</a></li>\n<li><a href=\"#security-group\" class=\"preview__body--description--blue\">Security Group</a></li>\n<li><a href=\"#iam-role-and-permissions\" class=\"preview__body--description--blue\">IAM Role and Permissions</a></li>\n</ul>\n<h3 class=\"preview__body--subtitle\" id=\"auto-scaling-group\">Auto Scaling Group</h3>\n<p>This module runs a single Kapacitor node on top of an <a href=\"https://aws.amazon.com/autoscaling/\" class=\"preview__body--description--blue\" target=\"_blank\">Auto Scaling Group (ASG)</a> to allow for auto-recovery. The EC2\nInstance should be running an AMI that has Kapacitor installed via the\n<a href=\"/repos/v0.1.1/terraform-aws-influx/modules/install-kapacitor\" class=\"preview__body--description--blue\">install-kapacitor</a>\nmodule. You pass in the ID of the AMI to run using the <code>ami_id</code> input parameter.</p>\n<h3 class=\"preview__body--subtitle\" id=\"security-group\">Security Group</h3>\n<p>The EC2 Instance in the ASG has a Security Group that allows minimal connectivity:</p>\n<ul>\n<li>All outbound requests</li>\n<li>Inbound SSH access from the CIDR blocks and security groups you specify</li>\n</ul>\n<p>The Security Group ID is exported as an output variable which you can use with the\n<a href=\"/repos/v0.1.1/terraform-aws-influx/modules/kapacitor-security-group-rules\" class=\"preview__body--description--blue\">kapacitor-security-group-rules</a>\nmodule to open up all the ports necessary for Kapacitor.</p>\n<h3 class=\"preview__body--subtitle\" id=\"iam-role-and-permissions\">IAM Role and Permissions</h3>\n<p>The EC2 Instance in the ASG has an <a href=\"http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles.html\" class=\"preview__body--description--blue\" target=\"_blank\">IAM Role</a> attached.\nThe IAM Role ARN and ID are exported as output variables if you need to add additional permissions.</p>\n<h3 class=\"preview__body--subtitle\" id=\"how-do-you-roll-out-updates\">How do you roll out updates?</h3>\n<p>This module currently doesn't support updating the version of Kapacitor installed across the cluster. You can however follow\nthis <a href=\"https://docs.influxdata.com/kapacitor/v1.5/administration/upgrading/\" class=\"preview__body--description--blue\" target=\"_blank\">guide</a> to manually perform the upgrade.</p>\n<h3 class=\"preview__body--subtitle\" id=\"dedicated-instances\">Dedicated instances</h3>\n<p>If you wish to use dedicated instances, you can set the <code>tenancy</code> parameter to <code>"dedicated"</code> in this module.</p>\n<h3 class=\"preview__body--subtitle\" id=\"encryption\">Encryption</h3>\n<p>This module does not currently support specifying encryption information. The official <a href=\"https://docs.influxdata.com/enterprise_kapacitor/v1.5/administration/security/#kapacitor-enterprise-over-tls\" class=\"preview__body--description--blue\" target=\"_blank\">documentation</a> contains a guide for enabling SSL.</p>\n<h3 class=\"preview__body--subtitle\" id=\"security-groups\">Security groups</h3>\n<p>This module attaches a security group to each EC2 Instance that allows inbound requests as follows:</p>\n<ul>\n<li><strong>SSH</strong>: For the SSH port (default: 22), you can use the <code>allowed_ssh_cidr_blocks</code> parameter to control the list of<br>\n<a href=\"https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing\" class=\"preview__body--description--blue\" target=\"_blank\">CIDR blocks</a> that will be allowed access. You can use\nthe <code>allowed_inbound_ssh_security_group_ids</code> parameter to control the list of source Security Groups that will be\nallowed access.</li>\n</ul>\n<p>The ID of the security group is exported as an output variable, which you can use with the\n<a href=\"/repos/v0.1.1/terraform-aws-influx/modules/kapacitor-security-group-rules\" class=\"preview__body--description--blue\">kapacitor-security-group-rules</a>\nmodule to open up all the ports necessary for Kapacitor.</p>\n<h3 class=\"preview__body--subtitle\" id=\"ssh-access\">SSH access</h3>\n<p>You can associate an <a href=\"http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html\" class=\"preview__body--description--blue\" target=\"_blank\">EC2 Key Pair</a> with each\nof the EC2 Instances in this cluster by specifying the Key Pair's name in the <code>ssh_key_name</code> variable. If you don't\nwant to associate a Key Pair with these servers, set <code>ssh_key_name</code> to an empty string.</p>\n","repoName":"terraform-aws-influx","repoRef":"v0.1.1","serviceDescriptor":{"serviceName":"InfluxDB","serviceRepoName":"terraform-aws-influx","serviceRepoOrg":"gruntwork-io","cloudProviders":["aws"],"description":"Deploy an InfluxDB cluster. Supports automatic bootstrapping and auto healing.","imageUrl":"tick.png","licenseType":"open-source","technologies":["Terraform","Bash"],"compliance":[],"tags":[""]},"serviceCategoryName":"NoSQL","fileName":"README.md","filePath":"/modules/kapacitor-server","title":"Repo Browser: InfluxDB","description":"Browse the repos in the Gruntwork Infrastructure as Code Library."}
.circleci
main.tf
