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add periodic cronjob to backup mysql instance - mysqldump > .sql [ci skip]

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Viktor Barzin 2024-01-06 16:23:39 +00:00
parent 8fba657853
commit c953d0a8b7
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1 changed files with 57 additions and 6 deletions
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63
modules/kubernetes/dbaas/main.tf
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@ -143,12 +143,6 @@ resource "kubernetes_deployment" "mysql" {
path = "/mnt/main/mysql"
server = "10.0.10.15"
}
# iscsi {
# target_portal = "iscsi.viktorbarzin.lan:3260"
# iqn = "iqn.2020-12.lan.viktorbarzin:storage:dbaas:mysql"
# lun = 0
# fs_type = "ext4"
# }
}
volume {
@ -164,6 +158,63 @@ resource "kubernetes_deployment" "mysql" {
}
}
resource "kubernetes_cron_job_v1" "mysql-backup" {
metadata {
name = "mysql-backup"
namespace = "dbaas"
}
spec {
concurrency_policy = "Replace"
failed_jobs_history_limit = 5
schedule = "0 */6 * * *"
# 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 = "mysql"
# TODO: would be nice to rotate at some point... Current size is 11MB so not really needed atm
command = ["/bin/sh", "-c", <<-EOT
export now=$(date +"%Y_%m_%d_%H_%M")
mysqldump --all-databases -u root -p${var.dbaas_root_password} --host mysql.dbaas.svc.cluster.local > /backup/dump_$now.sql
# Rotate - delete last log file
cd /backup
find . -name "dump_*.sql" -type f -mtime +14 -delete # 14 day retention of backups
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):
# > mysql -u root -p --host 10.0.10.104 --port 3307 < /mnt/nfs/2024_01_06_13_54.sql
volume_mount {
name = "mysql-backup"
mount_path = "/backup"
}
}
volume {
name = "mysql-backup"
nfs {
path = "/mnt/main/mysql-backup"
server = "10.0.10.15"
}
}
}
}
}
}
}
}
# resource "kubernetes_persistent_volume" "mysql" {
# metadata {
# name = "mysql-pv"