feat: add Terraform Gose module for Kubernetes

master
RaviAnand Mohabir 1 year ago
commit ecf6c11ed1

37
.gitignore vendored

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# Local .terraform directories
**/.terraform/*
# .tfstate files
*.tfstate
*.tfstate.*
# Crash log files
crash.log
crash.*.log
# Exclude all .tfvars files, which are likely to contain sensitive data, such as
# password, private keys, and other secrets. These should not be part of version
# control as they are data points which are potentially sensitive and subject
# to change depending on the environment.
*.tfvars
*.tfvars.json
# Ignore override files as they are usually used to override resources locally and so
# are not checked in
override.tf
override.tf.json
*_override.tf
*_override.tf.json
# Include override files you do wish to add to version control using negated pattern
# !example_override.tf
# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
# example: *tfplan*
# Ignore CLI configuration files
.terraformrc
terraform.rc
# Custom
.env

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terraform {
required_providers {
kubernetes = {
source = "hashicorp/kubernetes"
version = "2.13.1"
}
}
}
locals {
match_labels = merge({
"app.kubernetes.io/name" = "gose"
"app.kubernetes.io/instance" = "gose"
}, var.match_labels)
labels = merge(local.match_labels, var.labels)
config = merge(var.config, {
"listen" = ":8080",
"base_url" = var.host
})
}
resource "kubernetes_deployment" "gose" {
metadata {
name = "gose"
namespace = var.namespace
labels = local.labels
}
spec {
replicas = 1
selector {
match_labels = local.labels
}
template {
metadata {
labels = local.labels
annotations = {
"ravianand.me/config-hash" = sha1(jsonencode(merge(
kubernetes_secret.gose.data
)))
}
}
spec {
container {
image = var.image_registry == "" ? "${var.image_repository}:${var.image_tag}" : "${var.image_registry}/${var.image_repository}:${var.image_tag}"
name = var.container_name
args = ["-config", "/config.yaml"]
port {
name = "http"
container_port = 8080
}
volume_mount {
name = "config"
mount_path = "/config.yaml"
sub_path = "config.yaml"
}
}
volume {
name = "config"
secret {
secret_name = kubernetes_service.gose.metadata.0.name
items {
key = "config.yaml"
path = "config.yaml"
}
}
}
}
}
}
}
resource "kubernetes_service" "gose" {
metadata {
name = var.service_name
namespace = var.namespace
labels = local.labels
}
spec {
type = var.service_type
selector = local.match_labels
port {
name = "http"
port = 8080
target_port = "http"
}
}
}
resource "kubernetes_secret" "gose" {
metadata {
name = "gose"
namespace = var.namespace
}
data = {
"config.yaml" = yamlencode(local.config)
}
}

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output "service_name" {
description = "Service name for Terraboard deployment"
value = kubernetes_service.terraboard.metadata.0.name
}
output "service_port" {
description = "Port exposed by the service"
value = kubernetes_service.terraboard.spec.0.port.0.name
}

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variable "namespace" {
description = "Namespace where Gose is deployed"
type = string
default = "default"
}
variable "image_registry" {
description = "Image registry, e.g. gcr.io, docker.io"
type = string
default = "ghcr.io"
}
variable "image_repository" {
description = "Image to start for this pod"
type = string
default = "stv0g/gose"
}
variable "image_tag" {
description = "Image tag to use"
type = string
default = "latest"
}
variable "container_name" {
description = "Name of the Gose container"
type = string
default = "gose"
}
variable "match_labels" {
description = "Match labels to add to the Gose deployment, will be merged with labels"
type = map(any)
default = {}
}
variable "labels" {
description = "Labels to add to the Gose deployment"
type = map(any)
default = {}
}
variable "host" {
description = "Public facing hostname for Gose"
type = string
default = "http://localhost:8080"
}
variable "config" {
description = "Gose config"
type = object({
listen = optional(string)
base_url = optional(string)
static = optional(string)
max_upload_size = optional(string)
servers = optional(list(object({
bucket = string
endpoint = string
region = string
path_style = optional(string)
no_ssl = optional(string)
access_key = string
secret_key = string
max_upload_size = optional(string)
part_size = optional(string)
setup = optional(object({
bucket = optional(bool)
cors = optional(bool)
lifecycle = optional(bool)
abort_incomplete_uploads = optional(number)
}))
})))
expiration = optional(list(object({
id = string
title = string
days = number
})))
shortener = optional(object({
endpoint = string
method = string
response = string
}))
notification = optional(object({
urls = list(string)
template = string
mail = object({
url = string
template = string
})
}))
})
}
variable "service_name" {
description = "Name of service to deploy"
type = string
default = "gose"
}
variable "service_type" {
description = "Type of service to deploy"
type = string
default = "ClusterIP"
}
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