Create replica on green cluster

femiwiki · Oct 6, 2024 · dcf9622 · dcf9622
1 parent a6bc379
commit dcf9622
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Showing 3 changed files with 36 additions and 9 deletions.
diff --git a/jobs/mysql.nomad b/jobs/mysql.nomad
@@ -1,19 +1,18 @@
-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" {
   datacenters = ["dc1"]
 
   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
@@ -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
@@ -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