From 6fd4b269cf7c8106f5d9608e217231d3a2cfe769 Mon Sep 17 00:00:00 2001
From: Jesus Galaz <jesusgalazr@icloud.com>
Date: Mon, 16 Dec 2024 00:56:24 +0100
Subject: [PATCH] fix(mongodb): Migrate MongoDB to StatefulSet for Improved
Data Persistence and Stability
This MR updates the MongoDB deployment to use a StatefulSet instead of a Deployment. Key changes include:
1. Replaced Deployment with StatefulSet for better handling of stateful workloads.
2. Added volumeClaimTemplates for dynamic PVC provisioning, ensuring dedicated storage per pod.
3. Updated the MongoDB service to a Headless Service to provide stable DNS for the StatefulSet pods.
These changes ensure stable pod identities, reliable data persistence, and improved scalability for MongoDB.
---
mongodb-deployment.yml | 28 ++++++++++------------------
mongodb-service.yml | 1 +
2 files changed, 11 insertions(+), 18 deletions(-)
diff --git a/mongodb-deployment.yml b/mongodb-deployment.yml
index 58fa9fd..bb557d4 100644
--- a/mongodb-deployment.yml
+++ b/mongodb-deployment.yml
@@ -1,25 +1,13 @@
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
- name: mongo-pvc
-spec:
- accessModes:
- - ReadWriteOnce
- resources:
- requests:
- storage: 1Gi
----
apiVersion: apps/v1
-kind: Deployment
+kind: StatefulSet
metadata:
name: mongodb
- labels:
- app: mongodb
spec:
replicas: 1
selector:
matchLabels:
app: mongodb
+ serviceName: mongodb
template:
metadata:
labels:
@@ -38,7 +26,11 @@ spec:
volumeMounts:
- name: mongo-data
mountPath: /data/db
- volumes:
- - name: mongo-data
- persistentVolumeClaim:
- claimName: mongo-pvc
+ volumeClaimTemplates:
+ - metadata:
+ name: mongo-data
+ spec:
+ accessModes: ["ReadWriteOnce"]
+ resources:
+ requests:
+ storage: 1Gi
diff --git a/mongodb-service.yml b/mongodb-service.yml
index 00a4a7d..976b64c 100644
--- a/mongodb-service.yml
+++ b/mongodb-service.yml
@@ -3,6 +3,7 @@ kind: Service
metadata:
name: mongodb
spec:
+ clusterIP: None
ports:
- port: 27017
targetPort: 27017
--
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