🎉 initial commit

.github/workflows/terraform.yaml

@@ -0,0 +1,40 @@
+name: 'Terraform GitHub Actions'
+
+on:
+  pull_request:
+
+jobs:
+  terraform-fmt:
+    name: Terraform Format
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v1
+
+      - name: Terraform Format
+        id: fmt
+        run: terraform fmt -diff -check -no-color -recursive
+        continue-on-error: true
+
+      - uses: actions/github-script@v4
+        if: github.event_name == 'pull_request' && steps.fmt.outputs.exitcode != 0
+        env:
+          TF_FMT_STDOUT: "${{ steps.fmt.outputs.stdout }}"
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const output = `#### Terraform Format and Style 🖌 - \`${{ steps.fmt.outcome }}\`
+            \`\`\`diff
+            ${process.env.TF_FMT_STDOUT}
+            \`\`\`
+            *Pusher: @${{ github.actor }}, Action: \`${{ github.event_name }}\`, Workflow: \`${{ github.workflow }}\`*`;
+            github.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: output
+            })
+            throw "failed to run `terraform fmt -check -recursive -diff`"

.gitignore

@@ -0,0 +1,10 @@
+.terraform.*
+.terraform/
+terraform.tfstate*
+terraform.tfvars
+terraform.txt
+.auto.tfvars
+creds/
+.vscode/
+.idea
+debug.log

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 AIGIS UK (Lotus Labs Ltd)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,31 @@
+# Terraform Helm InfluxDB v2 Module
+A Terraform module to deploy [InfluxDB v2](https://github.com/influxdata/influxdb) on a Kubernetes Cluster using the [Helm Provider](https://registry.terraform.io/providers/hashicorp/helm).
+
+![Concept Flow Illustration](https://user-images.githubusercontent.com/12916656/167049505-1a2c7aa6-d605-49d8-b295-83a69e2c8973.svg)
+
+## Default Admin Password & Token
+
+If the `admin_password` or `admin-token` input variables are **not** set, the initial password & token for the `admin` user account are auto-generated and stored as clear text in the `admin-password` and `admin-token` fields of a secret named `influxdb2-auth`[^1] in your InfluxDB installation namespace (`influxdb` by default). You can retrieve these values via the `kubectl` command:
+
+```
+kubectl -n influxdb get secret influxdb2-auth -o jsonpath="{.data.admin-password}" | base64 -d; echo
+```
+
+Substitute `admin-password` in the above command with `admin-token` to retrieve the default Admin user token.
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|:----:|:-----:|:-----:|
+| release_name | Helm release name | string | `influxdb2` | no |
+| namespace | Namespace to install InfluxDB chart into (created if non-existent on target cluster) | string | `influxdb` | no |
+| influxdb_chart_version | Version of InfluxDB chart to install | string | `2.0.12` | no |
+| timeout_seconds | Helm chart deployment can sometimes take longer than the default 5 minutes. Set a custom timeout (secs) | number | `800` | no |
+| admin_password | Default Admin password (minimum 8 chars) | string | empty | no |
+| admin_token | Default Admin token | string | empty | no |
+| enable_persistence | Persist data to a persistent volume? | bool | `false` | no |
+| pv_size | Size persistent volume to provision | bool | `false` | no |
+| values_file | Name of the InfluxDB helm chart values file to use | string | `values.yaml` | no |
+
+
+[^1]: [InfluxDB v2 Helm Chart - Fixed Auth Credentials](https://artifacthub.io/packages/helm/influxdata/influxdb2#fixed-auth-credentials)

chart.tf

@@ -0,0 +1,36 @@
+# Install InfluxDB v2 helm_chart
+resource "helm_release" "influxdb2" {
+  namespace        = var.namespace
+  create_namespace = true
+  name             = var.release_name
+  repository       = "https://helm.influxdata.com"
+  chart            = "influxdb2"
+  version          = var.influxdb_chart_version
+
+  # Helm chart deployment can sometimes take longer than the default 5 minutes
+  timeout = var.timeout_seconds
+
+  # If values file specified by the var.values_file input variable exists then apply the values from this file
+  # else apply the default values from the chart
+  values = [fileexists("${path.root}/${var.values_file}") == true ? file("${path.root}/${var.values_file}") : ""]
+
+  set_sensitive {
+    name  = "adminUser.password"
+    value = var.admin_password
+  }
+
+  set_sensitive {
+    name  = "adminUser.token"
+    value = var.admin_token
+  }
+
+  set {
+    name = "persistence.enabled"
+    value = var.enable_persistence
+  }
+
+  set {
+    name  = "persistence.size"
+    value = var.pv_size
+  }
+}

examples/default/README.md

@@ -0,0 +1,20 @@
+# Default Deployment Example
+
+This example illustrates how to use the `terraform-kubernetes-influxdb` module.
+
+<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|:----:|:-----:|:-----:|
+| release_name | Helm release name | string | `influxdb2` | no |
+| namespace | Namespace to install InfluxDB chart into (created if non-existent on target cluster) | string | `influxdb` | no |
+| influxdb_chart_version | Version of InfluxDB chart to install | string | `2.0.12` | no |
+| timeout_seconds | Helm chart deployment can sometimes take longer than the default 5 minutes. Set a custom timeout (secs) | number | `800` | no |
+| admin_password | Default Admin password (minimum 8 chars) | string | empty | no |
+| admin_token | Default Admin token | string | empty | no |
+| enable_persistence | Persist data to a persistent volume? | bool | `false` | no |
+| pv_size | Size persistent volume to provision | bool | `false` | no |
+| values_file | Name of the InfluxDB helm chart values file to use | string | `values.yaml` | no |
+
+<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->

examples/default/main.tf

@@ -0,0 +1,19 @@
+terraform {
+  required_providers {
+    helm = {
+      source  = "hashicorp/helm"
+      version = ">= 2.0.1"
+    }
+  }
+}
+
+provider "helm" {
+  kubernetes {
+    config_path = "~/.kube/config" # path to your kubeconfig file
+  }
+}
+
+module "argocd" {
+  //source = "github.com/aigisuk/terraform-kuberenetes-influxdb"
+  source = "aigisuk/influxdb/kubernetes"
+}

examples/default/variables.tf

@@ -0,0 +1,2 @@
+variable "admin_password" {}
+variable "admin_token" {}

variables.tf

@@ -0,0 +1,57 @@
+variable "release_name" {
+  type        = string
+  description = "Helm release name"
+  default     = "influxdb2"
+}
+variable "namespace" {
+  description = "Namespace to install InfluxDB chart into"
+  type        = string
+  default     = "influxdb"
+}
+
+variable "influxdb_chart_version" {
+  description = "Version of InfluxDB chart to install"
+  type        = string
+  default     = "2.0.12" # See https://artifacthub.io/packages/helm/influxdata/influxdb2 for latest version(s)
+}
+
+# Helm chart deployment can sometimes take longer than the default 5 minutes
+variable "timeout_seconds" {
+  type        = number
+  description = "Helm chart deployment can sometimes take longer than the default 5 minutes. Set a custom timeout here."
+  default     = 800 # 10 minutes
+}
+
+variable "admin_password" {
+  description = "Default Admin Password"
+  type        = string
+  default     = ""
+  validation {
+    condition     = var.admin_password != "" ? length(var.admin_password) >= 8 : true
+    error_message = "Admin password must be at least 8 characters in length."
+  }
+}
+
+variable "admin_token" {
+  description = "Default Admin Token"
+  type        = string
+  default     = ""
+}
+
+variable "values_file" {
+  description = "The name of the InfluxDB helm chart values file to use"
+  type        = string
+  default     = "values.yaml"
+}
+
+variable "enable_persistence" {
+  description = "Persist data to a persistent volume?"
+  type = bool
+  default = false
+}
+
+variable "pv_size" {
+  type        = string
+  description = "Size of the persistent volume (if persistence is enabled)"
+  default     = "0.5Gi"
+}

versions.tf

@@ -0,0 +1,9 @@
+terraform {
+  required_providers {
+    helm = {
+      source  = "hashicorp/helm"
+      version = ">= 2.0.1"
+    }
+  }
+  required_version = ">= 0.15"
+}