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Terraform

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)
}
}