f538115c43
## Context Disk write analysis showed MySQL InnoDB Cluster writing ~95 GB/day for only ~35 MB of actual data due to Group Replication overhead (binlog, relay log, GR apply log). The operator enforces GR even with serverInstances=1. Bitnami Helm charts were deprecated by Broadcom in Aug 2025 — no free container images available. Using official mysql:8.4 image instead. ## This change: - Replace helm_release.mysql_cluster service selector with raw kubernetes_stateful_set_v1 using official mysql:8.4 image - ConfigMap mysql-standalone-cnf: skip-log-bin, innodb_flush_log_at_trx_commit=2, innodb_doublewrite=ON (re-enabled for standalone safety) - Service selector switched to standalone pod labels - Technitium: disable SQLite query logging (18 GB/day write amplification), keep PostgreSQL-only logging (90-day retention) - Grafana datasource and dashboards migrated from MySQL to PostgreSQL - Dashboard SQL queries fixed for PG integer division (::float cast) - Updated CLAUDE.md service-specific notes ## What is NOT in this change: - InnoDB Cluster + operator removal (Phase 4, 7+ days from now) - Stale Vault role cleanup (Phase 4) - Old PVC deletion (Phase 4) Expected write reduction: ~113 GB/day (MySQL 95 + Technitium 18) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
1710 lines
56 KiB
HCL
1710 lines
56 KiB
HCL
# DB as a service. Installs MySQL operator
|
||
variable "tls_secret_name" {}
|
||
variable "tier" { type = string }
|
||
variable "dbaas_root_password" {}
|
||
variable "cluster_master_service" {
|
||
default = "mysql"
|
||
}
|
||
variable "postgresql_root_password" {}
|
||
variable "pgadmin_password" {}
|
||
variable "prod" {
|
||
default = false
|
||
type = bool
|
||
}
|
||
variable "nfs_server" { type = string }
|
||
variable "kube_config_path" {
|
||
type = string
|
||
sensitive = true
|
||
}
|
||
|
||
resource "kubernetes_namespace" "dbaas" {
|
||
metadata {
|
||
name = "dbaas"
|
||
labels = {
|
||
tier = var.tier
|
||
"resource-governance/custom-quota" = "true"
|
||
}
|
||
}
|
||
}
|
||
|
||
# Override Kyverno tier-1-cluster LimitRange (max 4Gi) to allow MySQL 6Gi limit
|
||
resource "kubernetes_limit_range" "dbaas" {
|
||
metadata {
|
||
name = "tier-defaults"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
limit {
|
||
type = "Container"
|
||
default = {
|
||
memory = "256Mi"
|
||
}
|
||
default_request = {
|
||
cpu = "50m"
|
||
memory = "256Mi"
|
||
}
|
||
max = {
|
||
memory = "8Gi"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
resource "kubernetes_resource_quota" "dbaas" {
|
||
metadata {
|
||
name = "dbaas-quota"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
hard = {
|
||
"requests.cpu" = "8"
|
||
"requests.memory" = "40Gi"
|
||
"limits.memory" = "40Gi"
|
||
pods = "30"
|
||
}
|
||
}
|
||
}
|
||
|
||
module "tls_secret" {
|
||
source = "../../../../modules/kubernetes/setup_tls_secret"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
tls_secret_name = var.tls_secret_name
|
||
}
|
||
|
||
|
||
#### MYSQL — InnoDB Cluster via MySQL Operator
|
||
#
|
||
# 3 MySQL servers with Group Replication + 1 MySQL Router for auto-failover.
|
||
# Operator installed in mysql-operator namespace (toleration for control-plane).
|
||
# Init containers are slow (~20 min each) due to mysqlsh plugin loading.
|
||
|
||
resource "kubernetes_namespace" "mysql_operator" {
|
||
metadata {
|
||
name = "mysql-operator"
|
||
labels = {
|
||
tier = "1-cluster"
|
||
}
|
||
}
|
||
}
|
||
|
||
resource "helm_release" "mysql_operator" {
|
||
namespace = kubernetes_namespace.mysql_operator.metadata[0].name
|
||
create_namespace = false
|
||
name = "mysql-operator"
|
||
timeout = 300
|
||
|
||
repository = "https://mysql.github.io/mysql-operator/"
|
||
chart = "mysql-operator"
|
||
version = "2.2.7"
|
||
|
||
# NOTE: The mysql-operator chart (2.2.7) does NOT expose a resources values key.
|
||
# The resources block below is ignored by the chart. Without explicit resources
|
||
# on the deployment, the LimitRange default (256Mi) applies silently.
|
||
# Fix: kubectl patch deployment mysql-operator -n mysql-operator --type=json \
|
||
# -p='[{"op":"replace","path":"/spec/template/spec/containers/0/resources","value":{"requests":{"cpu":"100m","memory":"256Mi"},"limits":{"memory":"512Mi"}}}]'
|
||
values = [yamlencode({
|
||
resources = {
|
||
requests = {
|
||
cpu = "100m"
|
||
memory = "256Mi"
|
||
}
|
||
limits = {
|
||
memory = "512Mi"
|
||
}
|
||
}
|
||
})]
|
||
}
|
||
|
||
# The mysql-sidecar ClusterRole created by the Helm chart is missing
|
||
# namespace and CRD list/watch permissions needed by the kopf framework
|
||
# in the sidecar container. Without these, the sidecar enters degraded
|
||
# mode and never completes InnoDB cluster join operations.
|
||
resource "kubernetes_cluster_role" "mysql_sidecar_extra" {
|
||
metadata {
|
||
name = "mysql-sidecar-extra"
|
||
}
|
||
rule {
|
||
api_groups = [""]
|
||
resources = ["namespaces"]
|
||
verbs = ["list", "watch"]
|
||
}
|
||
rule {
|
||
api_groups = ["apiextensions.k8s.io"]
|
||
resources = ["customresourcedefinitions"]
|
||
verbs = ["list", "watch"]
|
||
}
|
||
}
|
||
|
||
resource "kubernetes_cluster_role_binding" "mysql_sidecar_extra" {
|
||
metadata {
|
||
name = "mysql-sidecar-extra"
|
||
}
|
||
role_ref {
|
||
api_group = "rbac.authorization.k8s.io"
|
||
kind = "ClusterRole"
|
||
name = kubernetes_cluster_role.mysql_sidecar_extra.metadata[0].name
|
||
}
|
||
subject {
|
||
kind = "ServiceAccount"
|
||
name = "mysql-cluster-sa"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
}
|
||
|
||
# ConfigMap for MySQL extra config — mounted as subPath over 99-extra.cnf
|
||
# This is the only reliable way to persist innodb_doublewrite=OFF because:
|
||
# - spec.mycnf only applies on initial cluster creation
|
||
# - The operator's initconf container overwrites 99-extra.cnf on every pod start
|
||
# - SET PERSIST doesn't support innodb_doublewrite (static variable)
|
||
resource "kubernetes_config_map" "mysql_extra_cnf" {
|
||
metadata {
|
||
name = "mysql-extra-cnf"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
data = {
|
||
"99-extra.cnf" = <<-EOT
|
||
[mysqld]
|
||
innodb_doublewrite=OFF
|
||
EOT
|
||
}
|
||
}
|
||
|
||
resource "helm_release" "mysql_cluster" {
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
create_namespace = false
|
||
name = "mysql-cluster"
|
||
timeout = 900
|
||
|
||
repository = "https://mysql.github.io/mysql-operator/"
|
||
chart = "mysql-innodbcluster"
|
||
version = "2.2.7"
|
||
|
||
values = [yamlencode({
|
||
serverInstances = 1
|
||
routerInstances = 1
|
||
serverVersion = "8.4.4"
|
||
|
||
credentials = {
|
||
root = {
|
||
user = "root"
|
||
password = var.dbaas_root_password
|
||
host = "%"
|
||
}
|
||
}
|
||
|
||
tls = {
|
||
useSelfSigned = true
|
||
}
|
||
|
||
datadirVolumeClaimTemplate = {
|
||
storageClassName = "proxmox-lvm-encrypted"
|
||
metadata = {
|
||
annotations = {
|
||
"resize.topolvm.io/threshold" = "80%"
|
||
"resize.topolvm.io/increase" = "20%"
|
||
"resize.topolvm.io/storage_limit" = "100Gi"
|
||
}
|
||
}
|
||
resources = {
|
||
requests = {
|
||
storage = "30Gi"
|
||
}
|
||
}
|
||
}
|
||
|
||
serverConfig = {
|
||
mycnf = <<-EOT
|
||
[mysqld]
|
||
skip-name-resolve
|
||
mysql-native-password=ON
|
||
# Auto-recovery after crashes: rejoin group without manual intervention
|
||
group_replication_autorejoin_tries=2016
|
||
group_replication_exit_state_action=OFFLINE_MODE
|
||
group_replication_member_expel_timeout=30
|
||
group_replication_unreachable_majority_timeout=60
|
||
group_replication_start_on_boot=ON
|
||
# Cap XCom cache to prevent unbounded growth (default 1GB causes OOM)
|
||
group_replication_message_cache_size=134217728
|
||
# Reduce log buffer (16MB sufficient for this workload, was 64MB)
|
||
innodb_log_buffer_size=16777216
|
||
# Limit connections (peak usage ~40, no need for 151)
|
||
max_connections=80
|
||
# --- Disk write reduction (HDD/LVM thin) ---
|
||
# Flush redo log once per second, not per commit. Up to 1s data loss on MySQL crash,
|
||
# but group replication provides redundancy across 3 nodes.
|
||
innodb_flush_log_at_trx_commit=0
|
||
# OS decides when to flush binlog (not per commit)
|
||
sync_binlog=0
|
||
# HDD-tuned I/O capacity (default 200/2000 is for SSD)
|
||
innodb_io_capacity=100
|
||
innodb_io_capacity_max=200
|
||
# 1GB redo log capacity — larger log means less frequent checkpoint flushes
|
||
innodb_redo_log_capacity=1073741824
|
||
# 1GB buffer pool
|
||
innodb_buffer_pool_size=1073741824
|
||
# Disable doublewrite — halves write amplification. Safe with group replication
|
||
# (crashed node can re-clone from healthy replica rather than relying on local recovery)
|
||
innodb_doublewrite=OFF
|
||
# Flush neighbors on HDD (coalesce adjacent dirty pages into single I/O)
|
||
innodb_flush_neighbors=1
|
||
# Reduce page cleaner aggressiveness
|
||
innodb_lru_scan_depth=256
|
||
innodb_page_cleaners=1
|
||
# Reduce adaptive flushing — let dirty pages accumulate longer before background flush
|
||
innodb_adaptive_flushing_lwm=10
|
||
innodb_max_dirty_pages_pct=90
|
||
innodb_max_dirty_pages_pct_lwm=10
|
||
EOT
|
||
}
|
||
|
||
# Top-level resources apply to SIDECAR container
|
||
# VPA shows sidecar needs only 248Mi target / 334Mi upper bound
|
||
# Setting to 350Mi (was 2Gi/4Gi - 17× over-provisioned)
|
||
resources = {
|
||
requests = {
|
||
cpu = "250m"
|
||
memory = "350Mi"
|
||
}
|
||
limits = {
|
||
memory = "350Mi"
|
||
}
|
||
}
|
||
|
||
podSpec = {
|
||
affinity = {
|
||
nodeAffinity = {
|
||
requiredDuringSchedulingIgnoredDuringExecution = {
|
||
nodeSelectorTerms = [{
|
||
matchExpressions = [{
|
||
key = "kubernetes.io/hostname"
|
||
operator = "NotIn"
|
||
values = ["k8s-node1"]
|
||
}]
|
||
}]
|
||
}
|
||
}
|
||
podAntiAffinity = {
|
||
preferredDuringSchedulingIgnoredDuringExecution = [{
|
||
weight = 100
|
||
podAffinityTerm = {
|
||
labelSelector = {
|
||
matchLabels = {
|
||
"component" = "mysqld"
|
||
}
|
||
}
|
||
topologyKey = "kubernetes.io/hostname"
|
||
}
|
||
}]
|
||
}
|
||
}
|
||
# Container-specific resources for MYSQL container
|
||
# VPA shows 2.98Gi target / 5.26Gi upper bound
|
||
# Current usage ~1.8Gi peak. Reducing limit from 4Gi to 3Gi
|
||
containers = [
|
||
{
|
||
name = "mysql"
|
||
resources = {
|
||
requests = {
|
||
memory = "2Gi"
|
||
cpu = "250m"
|
||
}
|
||
limits = {
|
||
memory = "3Gi"
|
||
}
|
||
}
|
||
},
|
||
{
|
||
# MySQL operator sidecar (kopf Python control loop)
|
||
# VPA upper bound: 334Mi. Was 6Gi limit — 17× over-provisioned.
|
||
name = "sidecar"
|
||
resources = {
|
||
requests = {
|
||
memory = "350Mi"
|
||
cpu = "50m"
|
||
}
|
||
limits = {
|
||
memory = "512Mi"
|
||
}
|
||
}
|
||
}
|
||
]
|
||
initContainers = [
|
||
{
|
||
name = "fixdatadir"
|
||
resources = {
|
||
requests = { memory = "64Mi", cpu = "25m" }
|
||
limits = { memory = "64Mi" }
|
||
}
|
||
},
|
||
{
|
||
name = "initconf"
|
||
resources = {
|
||
requests = { memory = "256Mi", cpu = "50m" }
|
||
limits = { memory = "256Mi" }
|
||
}
|
||
},
|
||
{
|
||
name = "initmysql"
|
||
resources = {
|
||
requests = { memory = "512Mi", cpu = "250m" }
|
||
limits = { memory = "512Mi" }
|
||
}
|
||
}
|
||
]
|
||
}
|
||
|
||
# MySQL Router - explicitly set resources (chart does not expose router.resources)
|
||
# VPA shows 100Mi upper bound, setting to 128Mi
|
||
# Note: This requires manual kubectl patch after helm release:
|
||
# kubectl patch deployment mysql-cluster-router -n dbaas --type=json -p='[
|
||
# {"op": "replace", "path": "/spec/template/spec/containers/0/resources",
|
||
# "value": {"requests": {"cpu": "25m", "memory": "128Mi"}, "limits": {"memory": "128Mi"}}}]'
|
||
# TODO: migrate to mysql-operator fork or wait for upstream router.resources support
|
||
|
||
})]
|
||
|
||
depends_on = [helm_release.mysql_operator]
|
||
}
|
||
|
||
#### MYSQL — Standalone (migration target)
|
||
#
|
||
# Standalone MySQL without Group Replication. Eliminates ~95 GB/day of GR
|
||
# write overhead (binlog, relay log, XCom cache) for databases totaling ~35 MB.
|
||
# Binary logging disabled entirely (skip-log-bin) since no replication needed.
|
||
# Uses official mysql:8.4 image (Bitnami images deprecated by Broadcom Aug 2025).
|
||
|
||
resource "kubernetes_config_map" "mysql_standalone_cnf" {
|
||
metadata {
|
||
name = "mysql-standalone-cnf"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
data = {
|
||
"standalone.cnf" = <<-EOT
|
||
[mysqld]
|
||
skip-name-resolve
|
||
mysql-native-password=ON
|
||
skip-log-bin
|
||
max_connections=80
|
||
innodb_log_buffer_size=16777216
|
||
innodb_flush_log_at_trx_commit=2
|
||
innodb_io_capacity=100
|
||
innodb_io_capacity_max=200
|
||
innodb_redo_log_capacity=1073741824
|
||
innodb_buffer_pool_size=1073741824
|
||
innodb_flush_neighbors=1
|
||
innodb_lru_scan_depth=256
|
||
innodb_page_cleaners=1
|
||
innodb_adaptive_flushing_lwm=10
|
||
innodb_max_dirty_pages_pct=90
|
||
innodb_max_dirty_pages_pct_lwm=10
|
||
EOT
|
||
}
|
||
}
|
||
|
||
resource "kubernetes_stateful_set_v1" "mysql_standalone" {
|
||
metadata {
|
||
name = "mysql-standalone"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
labels = {
|
||
"app.kubernetes.io/name" = "mysql"
|
||
"app.kubernetes.io/instance" = "mysql-standalone"
|
||
"app.kubernetes.io/component" = "primary"
|
||
}
|
||
}
|
||
spec {
|
||
service_name = "mysql-standalone"
|
||
replicas = 1
|
||
|
||
selector {
|
||
match_labels = {
|
||
"app.kubernetes.io/instance" = "mysql-standalone"
|
||
"app.kubernetes.io/component" = "primary"
|
||
}
|
||
}
|
||
|
||
template {
|
||
metadata {
|
||
labels = {
|
||
"app.kubernetes.io/name" = "mysql"
|
||
"app.kubernetes.io/instance" = "mysql-standalone"
|
||
"app.kubernetes.io/component" = "primary"
|
||
}
|
||
}
|
||
spec {
|
||
affinity {
|
||
node_affinity {
|
||
required_during_scheduling_ignored_during_execution {
|
||
node_selector_term {
|
||
match_expressions {
|
||
key = "kubernetes.io/hostname"
|
||
operator = "NotIn"
|
||
values = ["k8s-node1"]
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
container {
|
||
name = "mysql"
|
||
image = "mysql:8.4"
|
||
|
||
port {
|
||
container_port = 3306
|
||
name = "mysql"
|
||
}
|
||
|
||
env {
|
||
name = "MYSQL_ROOT_PASSWORD"
|
||
value_from {
|
||
secret_key_ref {
|
||
name = kubernetes_secret.cluster-password.metadata[0].name
|
||
key = "ROOT_PASSWORD"
|
||
}
|
||
}
|
||
}
|
||
|
||
resources {
|
||
requests = {
|
||
cpu = "250m"
|
||
memory = "1536Mi"
|
||
}
|
||
limits = {
|
||
memory = "2Gi"
|
||
}
|
||
}
|
||
|
||
volume_mount {
|
||
name = "data"
|
||
mount_path = "/var/lib/mysql"
|
||
}
|
||
|
||
volume_mount {
|
||
name = "config"
|
||
mount_path = "/etc/mysql/conf.d"
|
||
read_only = true
|
||
}
|
||
|
||
liveness_probe {
|
||
exec {
|
||
command = ["mysqladmin", "ping", "-h", "localhost"]
|
||
}
|
||
initial_delay_seconds = 30
|
||
period_seconds = 10
|
||
timeout_seconds = 5
|
||
failure_threshold = 3
|
||
}
|
||
|
||
readiness_probe {
|
||
exec {
|
||
command = ["mysqladmin", "ping", "-h", "localhost"]
|
||
}
|
||
initial_delay_seconds = 10
|
||
period_seconds = 10
|
||
timeout_seconds = 5
|
||
failure_threshold = 3
|
||
}
|
||
}
|
||
|
||
volume {
|
||
name = "config"
|
||
config_map {
|
||
name = kubernetes_config_map.mysql_standalone_cnf.metadata[0].name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
volume_claim_template {
|
||
metadata {
|
||
name = "data"
|
||
annotations = {
|
||
"resize.topolvm.io/threshold" = "80%"
|
||
"resize.topolvm.io/increase" = "100%"
|
||
"resize.topolvm.io/storage_limit" = "30Gi"
|
||
}
|
||
}
|
||
spec {
|
||
access_modes = ["ReadWriteOnce"]
|
||
storage_class_name = "proxmox-lvm-encrypted"
|
||
resources {
|
||
requests = {
|
||
storage = "5Gi"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
lifecycle {
|
||
ignore_changes = [spec[0].template[0].spec[0].dns_config]
|
||
}
|
||
}
|
||
|
||
# Compatibility service: mysql.dbaas.svc.cluster.local:3306
|
||
# Points at standalone MySQL (migrated from InnoDB Cluster 2026-04-16)
|
||
resource "kubernetes_service" "mysql" {
|
||
metadata {
|
||
name = var.cluster_master_service
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
selector = {
|
||
"app.kubernetes.io/instance" = "mysql-standalone"
|
||
"app.kubernetes.io/component" = "primary"
|
||
}
|
||
port {
|
||
port = 3306
|
||
target_port = 3306
|
||
}
|
||
}
|
||
|
||
depends_on = [kubernetes_stateful_set_v1.mysql_standalone]
|
||
}
|
||
|
||
module "nfs_mysql_backup_host" {
|
||
source = "../../../../modules/kubernetes/nfs_volume"
|
||
name = "dbaas-mysql-backup-host"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
nfs_server = "192.168.1.127"
|
||
nfs_path = "/srv/nfs/mysql-backup"
|
||
}
|
||
|
||
resource "kubernetes_persistent_volume_claim" "pgadmin_encrypted" {
|
||
wait_until_bound = false
|
||
metadata {
|
||
name = "dbaas-pgadmin-encrypted"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
annotations = {
|
||
"resize.topolvm.io/threshold" = "80%"
|
||
"resize.topolvm.io/increase" = "100%"
|
||
"resize.topolvm.io/storage_limit" = "5Gi"
|
||
}
|
||
}
|
||
spec {
|
||
access_modes = ["ReadWriteOnce"]
|
||
storage_class_name = "proxmox-lvm-encrypted"
|
||
resources {
|
||
requests = {
|
||
storage = "1Gi"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
module "nfs_postgresql_backup_host" {
|
||
source = "../../../../modules/kubernetes/nfs_volume"
|
||
name = "dbaas-postgresql-backup-host"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
nfs_server = "192.168.1.127"
|
||
nfs_path = "/srv/nfs/postgresql-backup"
|
||
}
|
||
|
||
resource "kubernetes_cron_job_v1" "mysql-backup" {
|
||
metadata {
|
||
name = "mysql-backup"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
concurrency_policy = "Replace"
|
||
failed_jobs_history_limit = 5
|
||
schedule = "30 0 * * *"
|
||
# schedule = "* * * * *"
|
||
starting_deadline_seconds = 10
|
||
successful_jobs_history_limit = 10
|
||
job_template {
|
||
metadata {}
|
||
spec {
|
||
backoff_limit = 3
|
||
ttl_seconds_after_finished = 10
|
||
template {
|
||
metadata {}
|
||
spec {
|
||
container {
|
||
name = "mysql-backup"
|
||
image = "docker.io/library/mysql:8.0"
|
||
env {
|
||
name = "MYSQL_PWD"
|
||
value_from {
|
||
secret_key_ref {
|
||
name = "cluster-secret"
|
||
key = "ROOT_PASSWORD"
|
||
}
|
||
}
|
||
}
|
||
command = ["/bin/bash", "-c", <<-EOT
|
||
set -euxo pipefail
|
||
_t0=$(date +%s)
|
||
_rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
_wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
|
||
export now=$(date +"%Y_%m_%d_%H_%M")
|
||
mysqldump --all-databases -u root --host mysql.dbaas.svc.cluster.local | gzip -9 > /backup/dump_$now.sql.gz
|
||
|
||
# Rotate — 14 day retention
|
||
cd /backup
|
||
find . -name "dump_*.sql.gz" -type f -mtime +14 -delete
|
||
find . -name "dump_*.sql" -type f -mtime +14 -delete # clean up old uncompressed
|
||
|
||
_dur=$(($(date +%s) - _t0))
|
||
_rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
_wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
echo "=== Backup IO Stats ==="
|
||
echo "duration: $${_dur}s"
|
||
echo "read: $(( (_rb1 - _rb0) / 1048576 )) MiB"
|
||
echo "written: $(( (_wb1 - _wb0) / 1048576 )) MiB"
|
||
echo "output: $(ls -lh /backup/dump_$now.sql.gz | awk '{print $5}')"
|
||
|
||
_out_bytes=$(stat -c%s /backup/dump_$now.sql.gz)
|
||
curl -sf --data-binary @- "http://prometheus-prometheus-pushgateway.monitoring:9091/metrics/job/mysql-backup" <<PGEOF || true
|
||
backup_duration_seconds $${_dur}
|
||
backup_read_bytes $(( _rb1 - _rb0 ))
|
||
backup_written_bytes $(( _wb1 - _wb0 ))
|
||
backup_output_bytes $${_out_bytes}
|
||
backup_last_success_timestamp $(date +%s)
|
||
PGEOF
|
||
EOT
|
||
]
|
||
# To restore (from outside of the cluster):
|
||
# run kubectl port-forward to pod e.g.:
|
||
# > kb port-forward mysql-647cfd4969-46rmw --address 0.0.0.0 3307:3306
|
||
# run mysql import (and specify non-localhost address to avoid using unix socket): (password is in tfvars)
|
||
# > mysql -u root -p --host 10.0.10.10 --port 3307 < /mnt/nfs/2024_01_06_13_54.sql
|
||
volume_mount {
|
||
name = "mysql-backup"
|
||
mount_path = "/backup"
|
||
}
|
||
}
|
||
volume {
|
||
name = "mysql-backup"
|
||
persistent_volume_claim {
|
||
claim_name = module.nfs_mysql_backup_host.claim_name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Per-database MySQL backups (enables single-database restore without affecting others)
|
||
resource "kubernetes_cron_job_v1" "mysql-backup-per-db" {
|
||
metadata {
|
||
name = "mysql-backup-per-db"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
concurrency_policy = "Replace"
|
||
failed_jobs_history_limit = 3
|
||
schedule = "45 0 * * *"
|
||
starting_deadline_seconds = 10
|
||
successful_jobs_history_limit = 3
|
||
job_template {
|
||
metadata {}
|
||
spec {
|
||
backoff_limit = 3
|
||
ttl_seconds_after_finished = 10
|
||
template {
|
||
metadata {}
|
||
spec {
|
||
container {
|
||
name = "mysql-backup-per-db"
|
||
image = "docker.io/library/mysql:8.0"
|
||
env {
|
||
name = "MYSQL_PWD"
|
||
value_from {
|
||
secret_key_ref {
|
||
name = "cluster-secret"
|
||
key = "ROOT_PASSWORD"
|
||
}
|
||
}
|
||
}
|
||
command = ["/bin/bash", "-c", <<-EOT
|
||
set -euo pipefail
|
||
_t0=$(date +%s)
|
||
now=$(date +"%Y_%m_%d_%H_%M")
|
||
MYSQL_HOST=mysql.dbaas.svc.cluster.local
|
||
failed=0
|
||
total=0
|
||
ok=0
|
||
|
||
# Discover all user databases
|
||
dbs=$(mysql -u root --host $MYSQL_HOST -N -e \
|
||
"SELECT schema_name FROM information_schema.schemata WHERE schema_name NOT IN ('mysql','information_schema','performance_schema','sys','mysql_innodb_cluster_metadata');")
|
||
|
||
for db in $dbs; do
|
||
total=$((total + 1))
|
||
mkdir -p /backup/per-db/$db
|
||
echo "=== Backing up $db ==="
|
||
if mysqldump -u root --host $MYSQL_HOST --single-transaction --set-gtid-purged=OFF "$db" | gzip -9 > "/backup/per-db/$db/dump_$now.sql.gz"; then
|
||
_size=$(stat -c%s "/backup/per-db/$db/dump_$now.sql.gz")
|
||
echo " OK — $(( _size / 1024 )) KiB"
|
||
ok=$((ok + 1))
|
||
else
|
||
echo " FAILED"
|
||
rm -f "/backup/per-db/$db/dump_$now.sql.gz"
|
||
failed=$((failed + 1))
|
||
fi
|
||
done
|
||
|
||
# Rotate — 14 day retention per database
|
||
find /backup/per-db -name "dump_*.sql.gz" -type f -mtime +14 -delete
|
||
|
||
_dur=$(($(date +%s) - _t0))
|
||
echo "=== Per-DB Backup Summary ==="
|
||
echo "databases: $total (ok: $ok, failed: $failed)"
|
||
echo "duration: $${_dur}s"
|
||
|
||
curl -sf --data-binary @- "http://prometheus-prometheus-pushgateway.monitoring:9091/metrics/job/mysql-backup-per-db" <<PGEOF || true
|
||
backup_duration_seconds $${_dur}
|
||
backup_databases_total $total
|
||
backup_databases_ok $ok
|
||
backup_databases_failed $failed
|
||
backup_last_success_timestamp $(date +%s)
|
||
PGEOF
|
||
EOT
|
||
]
|
||
volume_mount {
|
||
name = "mysql-backup"
|
||
mount_path = "/backup"
|
||
}
|
||
}
|
||
volume {
|
||
name = "mysql-backup"
|
||
persistent_volume_claim {
|
||
claim_name = module.nfs_mysql_backup_host.claim_name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# 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 "helm_release" "mysql" {
|
||
# namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
# 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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
# # 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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
# # 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_secret" "cluster-password" {
|
||
metadata {
|
||
name = "cluster-secret"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
# 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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
labels = {
|
||
"app" = "phpmyadmin"
|
||
tier = var.tier
|
||
|
||
}
|
||
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:5.2.3"
|
||
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"
|
||
}
|
||
}
|
||
}
|
||
env {
|
||
name = "UPLOAD_LIMIT"
|
||
value = "300M"
|
||
}
|
||
resources {
|
||
requests = {
|
||
cpu = "15m"
|
||
memory = "100Mi"
|
||
}
|
||
limits = {
|
||
memory = "100Mi"
|
||
}
|
||
}
|
||
}
|
||
dns_config {
|
||
option {
|
||
name = "ndots"
|
||
value = "2"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
resource "kubernetes_service" "phpmyadmin" {
|
||
metadata {
|
||
name = "pma"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
selector = {
|
||
"app" = "phpmyadmin"
|
||
}
|
||
port {
|
||
name = "web"
|
||
port = 80
|
||
}
|
||
}
|
||
}
|
||
module "ingress" {
|
||
source = "../../../../modules/kubernetes/ingress_factory"
|
||
dns_type = "proxied"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
name = "pma"
|
||
tls_secret_name = var.tls_secret_name
|
||
protected = true
|
||
extra_annotations = {}
|
||
rybbit_site_id = "942c76b8bd4d"
|
||
custom_content_security_policy = "script-src 'self' 'unsafe-inline' 'unsafe-eval' 'wasm-unsafe-eval' https://rybbit.viktorbarzin.me"
|
||
}
|
||
|
||
|
||
# resource "kubectl_manifest" "mysql-cluster" {
|
||
# yaml_body = <<-YAML
|
||
# apiVersion: mysql.presslabs.org/v1alpha1
|
||
# kind: MysqlCluster
|
||
# metadata:
|
||
# name: mysql-cluster
|
||
# namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
# 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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
# # }
|
||
# # 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:namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
# 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 = kubernetes_namespace.dbaas.metadata[0].name
|
||
# description:namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
# 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
|
||
# }
|
||
|
||
#### POSTGRESQL — CloudNativePG Cluster
|
||
#
|
||
# Migrated from single NFS-backed pod to CNPG on local-path storage.
|
||
# CNPG Cluster is managed via kubectl apply (not kubernetes_manifest)
|
||
# because the CNPG webhook mutates the spec on apply, causing
|
||
# Terraform provider "inconsistent result" errors.
|
||
#
|
||
# Rollback: apply old deployment yaml, revert service selector to app=postgresql.
|
||
|
||
# Ensure the CNPG cluster manifest exists (idempotent kubectl apply)
|
||
resource "null_resource" "pg_cluster" {
|
||
triggers = {
|
||
instances = "2"
|
||
image = "ghcr.io/cloudnative-pg/postgis:16"
|
||
storage_size = "20Gi"
|
||
storage_class = "proxmox-lvm-encrypted"
|
||
memory_limit = "2Gi"
|
||
pg_params = "v2-shared512-walcomp-workmem16"
|
||
}
|
||
|
||
provisioner "local-exec" {
|
||
command = <<-EOT
|
||
kubectl --kubeconfig ${var.kube_config_path} apply -f - <<'EOF'
|
||
apiVersion: postgresql.cnpg.io/v1
|
||
kind: Cluster
|
||
metadata:
|
||
name: pg-cluster
|
||
namespace: dbaas
|
||
spec:
|
||
instances: 2
|
||
imageName: ghcr.io/cloudnative-pg/postgis:16
|
||
postgresql:
|
||
parameters:
|
||
search_path: '"$user", public'
|
||
shared_buffers: "512MB"
|
||
effective_cache_size: "1536MB"
|
||
work_mem: "16MB"
|
||
wal_compression: "on"
|
||
random_page_cost: "4"
|
||
checkpoint_completion_target: "0.9"
|
||
enableAlterSystem: true
|
||
enableSuperuserAccess: true
|
||
inheritedMetadata:
|
||
annotations:
|
||
resize.topolvm.io/threshold: "80%"
|
||
resize.topolvm.io/increase: "20%"
|
||
resize.topolvm.io/storage_limit: "100Gi"
|
||
storage:
|
||
size: 20Gi
|
||
storageClass: proxmox-lvm-encrypted
|
||
resources:
|
||
requests:
|
||
cpu: "50m"
|
||
memory: "2Gi"
|
||
limits:
|
||
memory: "2Gi"
|
||
EOF
|
||
EOT
|
||
}
|
||
}
|
||
|
||
# Service that maintains the original postgresql.dbaas endpoint,
|
||
# now pointing at the CNPG primary pod instead of the old deployment.
|
||
resource "kubernetes_service" "postgresql" {
|
||
metadata {
|
||
name = "postgresql"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
selector = {
|
||
"cnpg.io/cluster" = "pg-cluster"
|
||
"cnpg.io/instanceRole" = "primary"
|
||
}
|
||
port {
|
||
name = "postgresql"
|
||
port = 5432
|
||
target_port = 5432
|
||
}
|
||
}
|
||
}
|
||
|
||
# LoadBalancer service for PG primary — accessible from DevVM (10.0.20.200:5432).
|
||
# Shares MetalLB IP with other non-conflicting services (Traefik, Dolt, etc.).
|
||
resource "kubernetes_service" "postgresql_lb" {
|
||
metadata {
|
||
name = "postgresql-lb"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
annotations = {
|
||
"metallb.universe.tf/loadBalancerIPs" = "10.0.20.200"
|
||
"metallb.io/allow-shared-ip" = "shared"
|
||
}
|
||
}
|
||
spec {
|
||
type = "LoadBalancer"
|
||
selector = {
|
||
"cnpg.io/cluster" = "pg-cluster"
|
||
"cnpg.io/instanceRole" = "primary"
|
||
}
|
||
port {
|
||
name = "postgresql"
|
||
port = 5432
|
||
target_port = 5432
|
||
}
|
||
}
|
||
}
|
||
|
||
# Create terraform_state database for remote TF state backend (pg backend).
|
||
# User password is managed by Vault Database Secrets Engine (static role rotation).
|
||
resource "null_resource" "pg_terraform_state_db" {
|
||
depends_on = [null_resource.pg_cluster]
|
||
|
||
triggers = {
|
||
db_name = "terraform_state"
|
||
username = "terraform_state"
|
||
}
|
||
|
||
provisioner "local-exec" {
|
||
command = <<-EOT
|
||
kubectl --kubeconfig ${var.kube_config_path} exec -n dbaas pg-cluster-1 -c postgres -- \
|
||
bash -c '
|
||
psql -U postgres -tc "SELECT 1 FROM pg_catalog.pg_roles WHERE rolname = '"'"'terraform_state'"'"'" | grep -q 1 || \
|
||
psql -U postgres -c "CREATE ROLE terraform_state WITH LOGIN PASSWORD '"'"'changeme-vault-will-rotate'"'"'"
|
||
psql -U postgres -tc "SELECT 1 FROM pg_catalog.pg_database WHERE datname = '"'"'terraform_state'"'"'" | grep -q 1 || \
|
||
psql -U postgres -c "CREATE DATABASE terraform_state OWNER terraform_state"
|
||
psql -U postgres -c "GRANT ALL PRIVILEGES ON DATABASE terraform_state TO terraform_state"
|
||
'
|
||
EOT
|
||
}
|
||
}
|
||
|
||
# Old PostgreSQL deployment — kept commented for rollback reference
|
||
# resource "kubernetes_deployment" "postgres" {
|
||
# metadata {
|
||
# name = "postgresql"
|
||
# namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
# labels = { tier = var.tier }
|
||
# }
|
||
# spec {
|
||
# replicas = 0 # scaled to 0 during CNPG migration
|
||
# selector { match_labels = { app = "postgresql" } }
|
||
# strategy { type = "Recreate" }
|
||
# template {
|
||
# metadata { labels = { app = "postgresql" } }
|
||
# spec {
|
||
# container {
|
||
# image = "viktorbarzin/postgres:16-master"
|
||
# name = "postgresql"
|
||
# env { name = "POSTGRES_PASSWORD"; value = var.postgresql_root_password }
|
||
# env { name = "POSTGRES_USER"; value = "root" }
|
||
# port { container_port = 5432; protocol = "TCP"; name = "postgresql" }
|
||
# volume_mount { name = "postgresql-persistent-storage"; mount_path = "/var/lib/postgresql/data" }
|
||
# }
|
||
# volume {
|
||
# name = "postgresql-persistent-storage"
|
||
# nfs { path = "/mnt/main/postgresql/data"; server = var.nfs_server }
|
||
# }
|
||
# }
|
||
# }
|
||
# }
|
||
# }
|
||
|
||
#### PGADMIN
|
||
|
||
resource "kubernetes_deployment" "pgadmin" {
|
||
metadata {
|
||
name = "pgadmin"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
annotations = {
|
||
"reloader.stakater.com/search" = "true"
|
||
}
|
||
labels = {
|
||
tier = var.tier
|
||
}
|
||
}
|
||
spec {
|
||
strategy {
|
||
type = "Recreate"
|
||
}
|
||
selector {
|
||
match_labels = {
|
||
app = "pgadmin"
|
||
}
|
||
}
|
||
template {
|
||
metadata {
|
||
labels = {
|
||
app = "pgadmin"
|
||
}
|
||
}
|
||
spec {
|
||
container {
|
||
image = "dpage/pgadmin4"
|
||
name = "pgadmin"
|
||
env {
|
||
name = "PGADMIN_DEFAULT_EMAIL"
|
||
value = "me@viktorbarzin.me"
|
||
}
|
||
env {
|
||
name = "PGADMIN_DEFAULT_PASSWORD"
|
||
# Changed at startup
|
||
value = var.pgadmin_password
|
||
}
|
||
port {
|
||
container_port = 80
|
||
name = "web"
|
||
}
|
||
volume_mount {
|
||
name = "pgadmin"
|
||
mount_path = "/var/lib/pgadmin/"
|
||
}
|
||
|
||
resources {
|
||
requests = {
|
||
cpu = "25m"
|
||
memory = "450Mi"
|
||
}
|
||
limits = {
|
||
memory = "450Mi"
|
||
}
|
||
}
|
||
|
||
}
|
||
volume {
|
||
name = "pgadmin"
|
||
# config_map {
|
||
# name = "pgadmin-config"
|
||
# }
|
||
persistent_volume_claim {
|
||
claim_name = kubernetes_persistent_volume_claim.pgadmin_encrypted.metadata[0].name
|
||
}
|
||
}
|
||
dns_config {
|
||
option {
|
||
name = "ndots"
|
||
value = "2"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
resource "kubernetes_service" "pgadmin" {
|
||
metadata {
|
||
name = "pgadmin"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
selector = {
|
||
"app" = "pgadmin"
|
||
}
|
||
port {
|
||
name = "pgadmin"
|
||
port = 80
|
||
}
|
||
}
|
||
}
|
||
module "ingress-pgadmin" {
|
||
source = "../../../../modules/kubernetes/ingress_factory"
|
||
dns_type = "proxied"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
name = "pgadmin"
|
||
tls_secret_name = var.tls_secret_name
|
||
protected = true
|
||
rybbit_site_id = "7cef78e30485"
|
||
}
|
||
|
||
|
||
resource "kubernetes_cron_job_v1" "postgresql-backup" {
|
||
metadata {
|
||
name = "postgresql-backup"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
concurrency_policy = "Replace"
|
||
failed_jobs_history_limit = 5
|
||
schedule = "0 0 * * *"
|
||
# schedule = "* * * * *"
|
||
starting_deadline_seconds = 10
|
||
successful_jobs_history_limit = 10
|
||
job_template {
|
||
metadata {}
|
||
spec {
|
||
backoff_limit = 3
|
||
ttl_seconds_after_finished = 10
|
||
template {
|
||
metadata {}
|
||
spec {
|
||
container {
|
||
name = "postgresql-backup"
|
||
image = "docker.io/library/postgres:16.4-bullseye"
|
||
env {
|
||
name = "PGPASSWORD"
|
||
value_from {
|
||
secret_key_ref {
|
||
name = "pg-cluster-superuser"
|
||
key = "password"
|
||
}
|
||
}
|
||
}
|
||
command = ["/bin/bash", "-c", <<-EOT
|
||
set -euxo pipefail
|
||
apt-get update -qq && apt-get install -yqq curl >/dev/null 2>&1 || true
|
||
_t0=$(date +%s)
|
||
_rb0=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
_wb0=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
|
||
export now=$(date +"%Y_%m_%d_%H_%M")
|
||
PGPASSWORD=$PGPASSWORD pg_dumpall -h pg-cluster-rw.dbaas -U postgres | gzip -9 > /backup/dump_$now.sql.gz
|
||
|
||
# Rotate — 14 day retention
|
||
cd /backup
|
||
find . -name "dump_*.sql.gz" -type f -mtime +14 -delete
|
||
find . -name "dump_*.sql" -type f -mtime +14 -delete # clean up old uncompressed
|
||
|
||
_dur=$(($(date +%s) - _t0))
|
||
_rb1=$(awk '/^read_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
_wb1=$(awk '/^write_bytes/{print $2}' /proc/$$/io 2>/dev/null || echo 0)
|
||
echo "=== Backup IO Stats ==="
|
||
echo "duration: $${_dur}s"
|
||
echo "read: $(( (_rb1 - _rb0) / 1048576 )) MiB"
|
||
echo "written: $(( (_wb1 - _wb0) / 1048576 )) MiB"
|
||
echo "output: $(ls -lh /backup/dump_$now.sql.gz | awk '{print $5}')"
|
||
|
||
_out_bytes=$(stat -c%s /backup/dump_$now.sql.gz)
|
||
curl -sf --data-binary @- "http://prometheus-prometheus-pushgateway.monitoring:9091/metrics/job/postgresql-backup" <<PGEOF || true
|
||
backup_duration_seconds $${_dur}
|
||
backup_read_bytes $(( _rb1 - _rb0 ))
|
||
backup_written_bytes $(( _wb1 - _wb0 ))
|
||
backup_output_bytes $${_out_bytes}
|
||
backup_last_success_timestamp $(date +%s)
|
||
PGEOF
|
||
EOT
|
||
]
|
||
volume_mount {
|
||
name = "postgresql-backup"
|
||
mount_path = "/backup"
|
||
}
|
||
}
|
||
volume {
|
||
name = "postgresql-backup"
|
||
persistent_volume_claim {
|
||
claim_name = module.nfs_postgresql_backup_host.claim_name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Per-database PostgreSQL backups (enables single-database restore without affecting others)
|
||
resource "kubernetes_cron_job_v1" "postgresql-backup-per-db" {
|
||
metadata {
|
||
name = "postgresql-backup-per-db"
|
||
namespace = kubernetes_namespace.dbaas.metadata[0].name
|
||
}
|
||
spec {
|
||
concurrency_policy = "Replace"
|
||
failed_jobs_history_limit = 3
|
||
schedule = "15 0 * * *"
|
||
starting_deadline_seconds = 10
|
||
successful_jobs_history_limit = 3
|
||
job_template {
|
||
metadata {}
|
||
spec {
|
||
backoff_limit = 3
|
||
ttl_seconds_after_finished = 10
|
||
template {
|
||
metadata {}
|
||
spec {
|
||
container {
|
||
name = "postgresql-backup-per-db"
|
||
image = "docker.io/library/postgres:16.4-bullseye"
|
||
env {
|
||
name = "PGPASSWORD"
|
||
value_from {
|
||
secret_key_ref {
|
||
name = "pg-cluster-superuser"
|
||
key = "password"
|
||
}
|
||
}
|
||
}
|
||
command = ["/bin/bash", "-c", <<-EOT
|
||
set -euo pipefail
|
||
apt-get update -qq && apt-get install -yqq curl >/dev/null 2>&1 || true
|
||
|
||
_t0=$(date +%s)
|
||
now=$(date +"%Y_%m_%d_%H_%M")
|
||
PGHOST=pg-cluster-rw.dbaas
|
||
PGUSER=postgres
|
||
failed=0
|
||
total=0
|
||
ok=0
|
||
|
||
# Discover all user databases
|
||
dbs=$(PGPASSWORD=$PGPASSWORD psql -h $PGHOST -U $PGUSER -t -A -c \
|
||
"SELECT datname FROM pg_database WHERE datistemplate = false AND datname != 'postgres' ORDER BY datname;")
|
||
|
||
for db in $dbs; do
|
||
total=$((total + 1))
|
||
mkdir -p /backup/per-db/$db
|
||
echo "=== Backing up $db ==="
|
||
if PGPASSWORD=$PGPASSWORD pg_dump -Fc -h $PGHOST -U $PGUSER "$db" > "/backup/per-db/$db/dump_$now.dump"; then
|
||
_size=$(stat -c%s "/backup/per-db/$db/dump_$now.dump")
|
||
echo " OK — $(( _size / 1024 )) KiB"
|
||
ok=$((ok + 1))
|
||
else
|
||
echo " FAILED"
|
||
rm -f "/backup/per-db/$db/dump_$now.dump"
|
||
failed=$((failed + 1))
|
||
fi
|
||
done
|
||
|
||
# Rotate — 14 day retention per database
|
||
find /backup/per-db -name "dump_*.dump" -type f -mtime +14 -delete
|
||
|
||
_dur=$(($(date +%s) - _t0))
|
||
echo "=== Per-DB Backup Summary ==="
|
||
echo "databases: $total (ok: $ok, failed: $failed)"
|
||
echo "duration: $${_dur}s"
|
||
|
||
curl -sf --data-binary @- "http://prometheus-prometheus-pushgateway.monitoring:9091/metrics/job/postgresql-backup-per-db" <<PGEOF || true
|
||
backup_duration_seconds $${_dur}
|
||
backup_databases_total $total
|
||
backup_databases_ok $ok
|
||
backup_databases_failed $failed
|
||
backup_last_success_timestamp $(date +%s)
|
||
PGEOF
|
||
EOT
|
||
]
|
||
volume_mount {
|
||
name = "postgresql-backup"
|
||
mount_path = "/backup"
|
||
}
|
||
resources {
|
||
requests = {
|
||
memory = "256Mi"
|
||
cpu = "50m"
|
||
}
|
||
limits = {
|
||
memory = "512Mi"
|
||
}
|
||
}
|
||
}
|
||
volume {
|
||
name = "postgresql-backup"
|
||
persistent_volume_claim {
|
||
claim_name = module.nfs_postgresql_backup_host.claim_name
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|