From dcf96227cb91a4baec49266674dbc8af0e3c4526 Mon Sep 17 00:00:00 2001
From: lens0021 <lorentz0021@gmail.com>
Date: Sun, 6 Oct 2024 21:11:52 +0900
Subject: [PATCH] Create replica on green cluster

---
 jobs/mysql.nomad       | 17 ++++++++---------
 terraform/mediawiki.tf | 16 ++++++++++++++++
 terraform/volumes.tf   | 12 ++++++++++++
 3 files changed, 36 insertions(+), 9 deletions(-)

diff --git a/jobs/mysql.nomad b/jobs/mysql.nomad
index 63cb2f5..d620e34 100644
--- a/jobs/mysql.nomad
+++ b/jobs/mysql.nomad
@@ -1,11 +1,10 @@
-variable "test" {
-  type        = bool
-  description = "Uses jobs for the test server. Without CSI"
-  default     = false
+variable "green" {
+  type    = bool
+  default = false
 }
 
 locals {
-  main = !var.test
+  blue = !var.green
 }
 
 job "mysql" {
@@ -13,7 +12,7 @@ job "mysql" {
 
   group "mysql" {
     dynamic "volume" {
-      for_each = local.main ? [{}] : []
+      for_each = local.blue ? [{}] : []
       labels   = ["mysql"]
 
       content {
@@ -29,7 +28,7 @@ job "mysql" {
       driver = "docker"
 
       dynamic "volume_mount" {
-        for_each = local.main ? [{}] : []
+        for_each = local.blue ? [{}] : []
 
         content {
           volume      = "mysql"
@@ -64,7 +63,7 @@ job "mysql" {
     network {
       mode = "bridge"
       dynamic "port" {
-        for_each = local.main ? [{}] : []
+        for_each = local.blue ? [{}] : []
         labels   = ["network"]
 
         content {
@@ -75,7 +74,7 @@ job "mysql" {
     }
 
     dynamic "service" {
-      for_each = var.test ? [{}] : []
+      for_each = var.green ? [{}] : []
       content {
         name = "mysql"
         port = "3306"
diff --git a/terraform/mediawiki.tf b/terraform/mediawiki.tf
index b935b8e..4fcd150 100644
--- a/terraform/mediawiki.tf
+++ b/terraform/mediawiki.tf
@@ -12,6 +12,22 @@ resource "nomad_job" "mysql" {
   }
 }
 
+resource "nomad_job" "mysql_green" {
+  depends_on = [
+    nomad_csi_volume_registration.mysql_green,
+  ]
+
+  jobspec = file("../jobs/mysql.nomad")
+  detach  = false
+
+  hcl2 {
+    allow_fs = true
+    vars = {
+      green = true
+    }
+  }
+}
+
 resource "nomad_job" "memcached" {
   jobspec = file("../jobs/memcached.nomad")
   detach  = false
diff --git a/terraform/volumes.tf b/terraform/volumes.tf
index c56a338..f589113 100644
--- a/terraform/volumes.tf
+++ b/terraform/volumes.tf
@@ -54,6 +54,18 @@ resource "nomad_csi_volume_registration" "mysql" {
   }
 }
 
+resource "nomad_csi_volume_registration" "mysql_green" {
+  plugin_id   = "aws-ebs0"
+  volume_id   = "mysql_green"
+  name        = "mysql_green"
+  external_id = data.terraform_remote_state.aws.outputs.ebs_mysql_green_id
+
+  capability {
+    access_mode     = "single-node-writer"
+    attachment_mode = "file-system"
+  }
+}
+
 import {
   id = "caddycerts@default"
   to = nomad_csi_volume_registration.caddycerts