Adding storage modules

postgresql/outputs.tf

@@ -0,0 +1,3 @@
+output "host" {
+  value = "${var.app_slug}-redis.${var.namespace}.svc"
+}

postgresql/postgresql.tf

@@ -0,0 +1,87 @@
+locals {
+  app_slug   = (var.component == var.instance || var.component=="") ? var.instance : format("%s-%s", var.component, var.instance)
+  pg-labels = merge(local.labels, {
+    "app.kubernetes.io/component" = "pg"
+  })
+  pool-labels = merge(local.labels, {
+    "app.kubernetes.io/component" = "pg-pool"
+  })
+}
+
+resource "kubectl_manifest" "prj_pg" {
+  yaml_body  = join("", concat([<<-EOF
+    apiVersion: postgresql.cnpg.io/v1
+    kind: Cluster
+    metadata:
+      name: "${local.app_slug}-pg"
+      namespace: "${var.namespace}"
+      labels: ${jsonencode(local.pg-labels)}
+      annotations:
+        "k8up.io/backupcommand": "pg_dump -U postgres -d ${var.component} --clean"
+        "k8up.io/file-extension": ".sql"
+    spec:
+      instances: ${var.replicas}
+      imageName: "${var.images.postgresql.registry}/${var.images.postgresql.repository}:${var.images.postgresql.tag}"
+      storage:
+        size: "${var.storage.size}"
+      bootstrap:
+        initdb:
+          database: "${var.component}"
+          owner: "${var.component}"
+      monitoring:
+        enablePodMonitor: true
+  EOF
+  ], var.backups.enable&&var.backups.use_barman?[<<-EOF
+      backup:
+        barmanObjectStore:
+          destinationPath: "s3://${var.app_slug}-${var.namespace}/"
+          endpointURL: "${var.backups.endpoint}/barman"
+          s3Credentials:
+            accessKeyId:
+              name: "${var.backups.secret_name}"
+              key: "${var.backups.key_id_key}"
+            secretAccessKey:
+              name: "${var.backups.secret_name}"
+              key: "${var.backups.secret_key}"
+  EOF
+  ]:[""]))
+}
+
+resource "kubectl_manifest" "prj_pg_backup" {
+  count = var.backups.enable ? 1:0
+  yaml_body  = <<-EOF
+    apiVersion: postgresql.cnpg.io/v1
+    kind: ScheduledBackup
+    metadata:
+      name: "${local.app_slug}-pg"
+      namespace: "${var.namespace}"
+      labels: ${jsonencode(local.pg-labels)}
+    spec:
+      schedule: "${var.backups.schedule.db}"
+      backupOwnerReference: self
+      cluster:
+        name: "${local.app_slug}-pg"
+  EOF
+}
+
+resource "kubectl_manifest" "prj_pg_pool" {
+  depends_on = [kubectl_manifest.prj_pg]
+  yaml_body  = <<-EOF
+    apiVersion: postgresql.cnpg.io/v1
+    kind: Pooler
+    metadata:
+      name: "${local.app_slug}-pool"
+      namespace: "${var.namespace}"
+      labels: ${jsonencode(local.pool-labels)}
+    spec:
+      cluster:
+        name: "${local.app_slug}-pg"
+      instances: 1
+      type: rw
+      pgbouncer:
+        poolMode: session
+        parameters:
+          max_client_conn: "1000"
+          default_pool_size: "10"
+  EOF
+}

postgresql/providers.tf

@@ -0,0 +1,8 @@
+terraform {
+  required_providers {
+    kubectl = {
+        source = "gavinbunney/kubectl"
+        version = "~> 1.14.0"
+    }
+  }
+}

postgresql/variables.tf

@@ -0,0 +1,63 @@
+variable "component" {
+  type = string
+}
+variable "instance" {
+  type = string
+}
+variable "namespace" {
+  type = string
+}
+variable "labels" {
+  type = map(string)
+}
+
+variable "backups" {
+  default     = {
+    "enable" = false
+    "endpoint" = ""
+    "key_id_key" = "s3-id"
+    "restic_key" = "bck-password"
+    "schedule" = {
+      "db" = "30 3 * * *"
+    }
+    "secret_key" = "s3-secret"
+    "secret_name" = "backup-settings"
+    "use_barman" = false
+  }
+  type        = object({
+    enable = optional(bool),
+    endpoint = optional(string),
+    key_id_key = optional(string),
+    restic_key = optional(string),
+    schedule = optional(object({
+      db = optional(string),
+    })),
+    secret_key = optional(string),
+    secret_name = optional(string),
+    use_barman = optional(bool)
+  })
+}
+variable "images" {
+  type        = object({
+    postgresql = optional(object({registry = optional(string), repository = optional(string), tag = optional(number)})),
+  })
+  default     = {
+    "postgresql" = {
+      "registry" = "ghcr.io"
+      "repository" = "cloudnative-pg/postgresql"
+      "tag" = 15.3
+    }
+  }
+}
+variable "replicas" {
+  type        = number
+  default     = 1
+}
+variable "storage" {
+  type        = object({
+    size = optional(string)
+  })
+  default     = {
+    "size" = "5Gi"
+  }
+}