I have a working mongoDB deployment on minikube and I have managed to create a database , collection as well as a user (same as the user referenced in yaml) to do backups on that database.
In the yaml file for my backup cron job I need to specify a MONGODB_URI and quite frankly I am at a loss as to the exact convention for this (or where do you even get the value).
As a check I have done a kubectl exec -it <pod_name> so that I can check if I am going to put the correct URI beforehand . After running kubectl exec -it <pod_name> at the prompt that follows I tried the following :
mongosh mongodb://aaa:abc123@mongodb-service.default.svc.cluster.local:27017/plaformdb/?directConnection=true
Not working I get error :
Current Mongosh Log ID: 62938b50880f139dad4b19c4
Connecting to: mongodb://mongodb-service.default.svc.cluster.local:27017/platformdb/?directConnection=true&appName=mongosh+1.4.2
MongoServerSelectionError: Server selection timed out after 30000 ms
mongosh mongodb://aaa:abc123@mongodb-service.svc.cluster.local:27017/platformdb?directConnection=true
Not working also I get error:
MongoNetworkError: getaddrinfo ENOTFOUND mongodb-service.svc.cluster.local
3.mongosh mongodb://aaa:abc123@mongodb-deployment-757ffdfdr5-thuiy.mongodb-service.default.svc.cluster.local:27017/platformdb
Not working I get an error :
Current Mongosh Log ID: 62938c93829f7c26ff78df25
Connecting to: mongodb://mongodb-deployment-757ffdd5f5-tpzll.mongodb-service.default.svc.cluster.local:27017/platformdb?directConnection=true&appName=mongosh+1.4.2
MongoNetworkError: getaddrinfo ENOTFOUND mongodb-deployment-757ffdd5f5-tpzll.mongodb-service.default.svc.cluster.local
This however is the recommended way according to the documentation :
...
Expected
I should be able to log in to the database once I run that command
This is how my deployment is defined :
apiVersion: apps/v1
kind: Deployment
metadata:
name: mongodb-deployment
labels:
app: mongodb
spec:
replicas: 1
selector:
matchLabels:
app: mongodb
template:
metadata:
labels:
app: mongodb
spec:
containers:
- name: mongodb
image: mongo
imagePullPolicy: "IfNotPresent"
ports:
- containerPort: 27017
env:
- name: MONGO_INITDB_ROOT_USERNAME
valueFrom:
secretKeyRef:
name: mongodb-secret-amended
key: mongo-root-username
- name: MONGO_INITDB_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: mongodb-secret-amended
key: mongo-root-password
volumeMounts:
- mountPath: /data/db
name: mongodb-vol
volumes:
- name: mongodb-vol
persistentVolumeClaim:
claimName: mongodb-claim
---
apiVersion: v1
kind: Service
metadata:
name: mongodb-service
spec:
selector:
app: mongodb
ports:
- protocol: TCP
port: 27017
targetPort: 27017
And I need to specify MONGODB_URI in this cron job :
---
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: mongodump-backup
spec:
schedule: "0 */6 * * *" #Cron job every 6 hours
startingDeadlineSeconds: 60
concurrencyPolicy: Forbid
successfulJobsHistoryLimit: 3
failedJobsHistoryLimit: 2
jobTemplate:
spec:
template:
spec:
containers:
- name: mongodump-backup
image: golide/backupsdemo
imagePullPolicy: "IfNotPresent"
env:
- name: DB_NAME
value: "microfunctions"
- name: MONGODB_URI
value: mongodb://aaa:abc123@host-mongodb:27017/dbname
volumeMounts:
- mountPath: "/mongodump"
name: mongodump-volume
command: ['sh', '-c',"./dump.sh"]
restartPolicy: OnFailure
volumes:
- name: mongodump-volume
persistentVolumeClaim:
claimName: mongodb-backup
The URI specified is just a placeholder.
What am I missing?