infra/modules/kubernetes/dbaas/main.tf
2022-12-27 18:07:59 +02:00

508 lines
17 KiB
HCL

# DB as a service. Installs MySQL operator
variable "tls_secret_name" {}
variable "dbaas_root_password" {}
variable "cluster_master_service" {
default = "mysql-cluster"
}
variable "prod" {
default = false
type = bool
}
# provider "kubectl" {
# config_path = var.prod ? "" : "~/.kube/config"
# host = "https://kubernetes:6443"
# insecure = true
# load_config_file = !var.prod
# config_context = "kubernetes-admin@kubernetes"
# config_context = "kek"
# client_certificate = var.prod ? "/run/secrets/kubernetes.io/serviceaccount/ca.crt" : ""
# token = var.prod ? "/run/secrets/kubernetes.io/serviceaccount/token" : ""
# insecure = true
# insecure = true
# }
resource "kubernetes_namespace" "dbaas" {
metadata {
name = "dbaas"
}
}
module "tls_secret" {
source = "../setup_tls_secret"
namespace = "dbaas"
tls_secret_name = var.tls_secret_name
}
# resource "helm_release" "mysql" {
# namespace = "dbaas"
# create_namespace = false
# name = "mysql"
# repository = "https://presslabs.github.io/charts"
# chart = "mysql-operator"
# # version = "v0.5.0-rc.3"
# values = [templatefile("${path.module}/mysql_chart_values.yaml", { secretName = var.tls_secret_name })]
# atomic = true
# depends_on = [kubernetes_namespace.dbaas]
# }
resource "helm_release" "mysql" {
namespace = "dbaas"
create_namespace = false
name = "mysql-operator"
repository = "https://mysql.github.io/mysql-operator/"
chart = "mysql-operator"
atomic = true
depends_on = [kubernetes_namespace.dbaas]
}
resource "helm_release" "innodb-cluster" {
namespace = "dbaas"
create_namespace = false
name = var.cluster_master_service
repository = "https://mysql.github.io/mysql-operator/"
chart = "mysql-innodbcluster"
atomic = true
depends_on = [kubernetes_namespace.dbaas]
values = [templatefile("${path.module}/chart_values.tpl", { root_password = var.dbaas_root_password })]
}
resource "kubernetes_persistent_volume" "mysql-operator" {
metadata {
name = "mysql-operator-pv"
}
spec {
capacity = {
"storage" = "1Gi"
}
access_modes = ["ReadWriteOnce"]
persistent_volume_source {
iscsi {
target_portal = "iscsi.viktorbarzin.lan:3260"
iqn = "iqn.2020-12.lan.viktorbarzin:storage:dbaas:operator"
lun = 0
fs_type = "ext4"
}
}
}
}
resource "kubernetes_persistent_volume" "mysql" {
metadata {
name = "mysql-pv"
}
spec {
capacity = {
"storage" = "10Gi"
}
access_modes = ["ReadWriteOnce"]
persistent_volume_source {
iscsi {
target_portal = "iscsi.viktorbarzin.lan:3260"
iqn = "iqn.2020-12.lan.viktorbarzin:storage:dbaas:mysql"
lun = 0
fs_type = "ext4"
}
}
}
}
resource "kubernetes_secret" "cluster-password" {
metadata {
name = "cluster-secret"
namespace = "dbaas"
annotations = {
"reloader.stakater.com/match" = "true"
}
}
type = "Opaque"
data = {
"ROOT_PASSWORD" = var.dbaas_root_password
}
}
resource "kubernetes_ingress_v1" "dbaas" {
metadata {
name = "orchestrator-ingress"
namespace = "dbaas"
annotations = {
"kubernetes.io/ingress.class" = "nginx"
"nginx.ingress.kubernetes.io/auth-tls-verify-client" = "on"
"nginx.ingress.kubernetes.io/auth-tls-secret" = "default/ca-secret"
}
}
spec {
tls {
hosts = ["db.viktorbarzin.me"]
secret_name = var.tls_secret_name
}
rule {
host = "db.viktorbarzin.me"
http {
path {
path = "/"
backend {
service {
name = "mysql-mysql-operator"
port {
number = 80
}
}
}
}
}
}
}
}
# PHPMyAdmin instance
resource "kubernetes_deployment" "phpmyadmin" {
metadata {
name = "phpmyadmin"
namespace = "dbaas"
labels = {
"app" = "phpmyadmin"
}
annotations = {
"reloader.stakater.com/search" = "true"
}
}
spec {
replicas = "1"
selector {
match_labels = {
"app" = "phpmyadmin"
}
}
template {
metadata {
labels = {
"app" = "phpmyadmin"
}
}
spec {
container {
name = "phpmyadmin"
image = "phpmyadmin/phpmyadmin"
port {
container_port = 80
}
env {
name = "PMA_HOST"
value = var.cluster_master_service
}
env {
name = "PMA_PORT"
value = "3306"
}
env {
name = "MYSQL_ROOT_PASSWORD"
value_from {
secret_key_ref {
name = "cluster-secret"
key = "ROOT_PASSWORD"
}
}
}
}
}
}
}
}
resource "kubernetes_service" "phpmyadmin" {
metadata {
name = "phpmyadmin"
namespace = "dbaas"
}
spec {
selector = {
"app" = "phpmyadmin"
}
port {
name = "web"
port = 80
}
}
}
resource "kubernetes_ingress_v1" "phpmyadmin" {
metadata {
name = "phpmyadmin-ingress"
namespace = "dbaas"
annotations = {
"kubernetes.io/ingress.class" = "nginx"
"nginx.ingress.kubernetes.io/auth-tls-verify-client" = "on"
"nginx.ingress.kubernetes.io/auth-tls-secret" = "default/ca-secret"
}
}
spec {
tls {
hosts = ["pma.viktorbarzin.me"]
secret_name = var.tls_secret_name
}
rule {
host = "pma.viktorbarzin.me"
http {
path {
path = "/"
backend {
service {
name = "phpmyadmin"
port {
number = 80
}
}
}
}
}
}
}
}
# resource "kubectl_manifest" "mysql-cluster" {
# yaml_body = <<-YAML
# apiVersion: mysql.presslabs.org/v1alpha1
# kind: MysqlCluster
# metadata:
# name: mysql-cluster
# namespace: dbaas
# spec:
# mysqlVersion: "5.7"
# replicas: 1
# secretName: cluster-secret
# mysqlConf:
# # read_only: 0 # mysql forms a single transaction for each sql statement, autocommit for each statement
# # automatic_sp_privileges: "ON" # automatically grants the EXECUTE and ALTER ROUTINE privileges to the creator of a stored routine
# # auto_generate_certs: "ON" # Auto Generation of Certificate
# # auto_increment_increment: 1 # Auto Incrementing value from +1
# # auto_increment_offset: 1 # Auto Increment Offset
# # binlog-format: "STATEMENT" # contains various options such ROW(SLOW,SAFE) STATEMENT(FAST,UNSAFE), MIXED(combination of both)
# # wait_timeout: 31536000 # 28800 number of seconds the server waits for activity on a non-interactive connection before closing it, You might encounter MySQL server has gone away error, you then tweak this value acccordingly
# # interactive_timeout: 28800 # The number of seconds the server waits for activity on an interactive connection before closing it.
# # max_allowed_packet: "512M" # Maximum size of MYSQL Network protocol packet that the server can create or read 4MB, 8MB, 16MB, 32MB
# # max-binlog-size: 1073741824 # binary logs contains the events that describe database changes, this parameter describe size for the bin_log file.
# # log_output: "TABLE" # Format in which the logout will be dumped
# # master-info-repository: "TABLE" # Format in which the master info will be dumped
# # relay_log_info_repository: "TABLE" # Format in which the relay info will be dumped
# volumeSpec:
# persistentVolumeClaim:
# accessModes:
# - ReadWriteOnce
# resources:
# requests:
# storage: 10Gi
# YAML
# depends_on = [helm_release.mysql]
# # manifest = {
# # apiVersion = "mysql.presslabs.org/v1alpha1"
# # kind = "MysqlCluster"
# # metadata = {
# # name = "mysql-cluster"
# # namespace = "dbaas"
# # }
# # spec = {
# # mysqlVersion = "5.7"
# # replicas = 1
# # secretName = "cluster-secret"
# # mysqlConf = {
# # read_only = 0
# # }
# # volumeSpec = {
# # persistentVolumeClaim = {
# # resources = {
# # requests = {
# # storage = "10Gi"
# # }
# # }
# # }
# # }
# # }
# # }
# }
# For some unknwown reason not all CRDs are installed. Add them manually
# resource "kubectl_manifest" "mysql-user" {
# yaml_body = <<-EOF
# apiVersion: apiextensions.k8s.io/v1
# kind: CustomResourceDefinition
# metadata:
# annotations:
# controller-gen.kubebuilder.io/version: v0.5.0
# helm.sh/hook: crd-install
# name: mysqlusers.mysql.presslabs.org
# labels:
# app: mysql-operator
# spec:
# group: mysql.presslabs.org
# names:
# kind: MysqlUser
# listKind: MysqlUserList
# plural: mysqlusers
# singular: mysqluser
# scope: Namespaced
# versions:
# - additionalPrinterColumns:
# - description: The user status
# jsonPath: .status.conditions[?(@.type == 'Ready')].status
# name: Ready
# type: string
# - jsonPath: .spec.clusterRef.name
# name: Cluster
# type: string
# - jsonPath: .spec.user
# name: UserName
# type: string
# - jsonPath: .metadata.creationTimestamp
# name: Age
# type: date
# name: v1alpha1
# schema:
# openAPIV3Schema:
# description: MysqlUser is the Schema for the MySQL User API
# properties:
# apiVersion:
# description: 'APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
# type: string
# kind:
# description: 'Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
# type: string
# metadata:
# type: object
# spec:
# description: MysqlUserSpec defines the desired state of MysqlUserSpec
# properties:
# allowedHosts:
# description: AllowedHosts is the allowed host to connect from.
# items:
# type: string
# type: array
# clusterRef:
# description: ClusterRef represents a reference to the MySQL cluster. This field should be immutable.
# properties:
# name:
# description: 'Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names TODO: Add other useful fields. apiVersion, kind, uid?'
# type: string
# namespace:
# description: Namespace the MySQL cluster namespace
# type: string
# type: object
# password:
# description: Password is the password for the user.
# properties:
# key:
# description: The key of the secret to select from. Must be a valid secret key.
# type: string
# name:
# description: 'Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names TODO: Add other useful fields. apiVersion, kind, uid?'
# type: string
# optional:
# description: Specify whether the Secret or its key must be defined
# type: boolean
# required:
# - key
# type: object
# permissions:
# description: Permissions is the list of roles that user has in the specified database.
# items:
# description: MysqlPermission defines a MySQL schema permission
# properties:
# permissions:
# description: Permissions represents the permissions granted on the schema/tables
# items:
# type: string
# type: array
# schema:
# description: Schema represents the schema to which the permission applies
# type: string
# tables:
# description: Tables represents the tables inside the schema to which the permission applies
# items:
# type: string
# type: array
# required:
# - permissions
# - schema
# - tables
# type: object
# type: array
# resourceLimits:
# additionalProperties:
# anyOf:
# - type: integer
# - type: string
# pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
# x-kubernetes-int-or-string: true
# description: 'ResourceLimits allow settings limit per mysql user as defined here: https://dev.mysql.com/doc/refman/5.7/en/user-resources.html'
# type: object
# user:
# description: User is the name of the user that will be created with will access the specified database. This field should be immutable.
# type: string
# required:
# - allowedHosts
# - clusterRef
# - password
# - user
# type: object
# status:
# description: MysqlUserStatus defines the observed state of MysqlUser
# properties:
# allowedHosts:
# description: AllowedHosts contains the list of hosts that the user is allowed to connect from.
# items:
# type: string
# type: array
# conditions:
# description: Conditions represents the MysqlUser resource conditions list.
# items:
# description: MySQLUserCondition defines the condition struct for a MysqlUser resource
# properties:
# lastTransitionTime:
# description: Last time the condition transitioned from one status to another.
# format: date-time
# type: string
# lastUpdateTime:
# description: The last time this condition was updated.
# format: date-time
# type: string
# message:
# description: A human readable message indicating details about the transition.
# type: string
# reason:
# description: The reason for the condition's last transition.
# type: string
# status:
# description: Status of the condition, one of True, False, Unknown.
# type: string
# type:
# description: Type of MysqlUser condition.
# type: string
# required:
# - lastTransitionTime
# - message
# - reason
# - status
# - type
# type: object
# type: array
# type: object
# type: object
# served: true
# storage: true
# subresources:
# status: {}
# EOF
# }