I’m a complete beginner to k8s, this is my first deployment. I have a NodeJS server that connects to MongoDB Atlas. I deployed it to k8s but it doesn’t connect to Atlas.
I’m getting the following error in pod logs
MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster.
One common reason is that you're trying to access the database from an IP that isn't whitelisted.
Make sure your current IP address is on your Atlas cluster's IP whitelist: https://docs.atlas.mongodb.com/security-whitelist/
at NativeConnection.Connection.openUri (/myapp/node_modules/mongoose/lib/connection.js:819:32)
at /myapp/node_modules/mongoose/lib/index.js:379:10
at /myapp/node_modules/mongoose/lib/helpers/promiseOrCallback.js:32:5
at new Promise (<anonymous>)
at promiseOrCallback (/myapp/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10)
at Mongoose._promiseOrCallback (/myapp/node_modules/mongoose/lib/index.js:1224:10)
at Mongoose.connect (/myapp/node_modules/mongoose/lib/index.js:378:20)
at Object.module.exports.connect (/myapp/config/db.js:5:10)
at Server.<anonymous> (/myapp/index.js:75:14)
at Object.onceWrapper (node:events:513:28) {
reason: TopologyDescription {
at promiseOrCallback (/myapp/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10)
at Mongoose._promiseOrCallback (/myapp/node_modules/mongoose/lib/index.js:1224:10)
at Mongoose.connect (/myapp/node_modules/mongoose/lib/index.js:378:20)
at Object.module.exports.connect (/myapp/config/db.js:5:10)
at Server.<anonymous> (/myapp/index.js:75:14)
at Object.onceWrapper (node:events:513:28) {
reason: TopologyDescription {
type: 'ReplicaSetNoPrimary',
servers: Map(3) {
'ac-tszcvnh-shard-00-01.efxgtyi.mongodb.net:27017' => [ServerDescription],
'ac-tszcvnh-shard-00-02.efxgtyi.mongodb.net:27017' => [ServerDescription],
'ac-tszcvnh-shard-00-00.efxgtyi.mongodb.net:27017' => [ServerDescription]
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: 'atlas-ew9q6w-shard-0',
logicalSessionTimeoutMinutes: undefined
},
code: undefined
}
I tried setting the dnsPolicy to default and ClusterFirstWithHostNet both didn’t work.
My Atlas Network access is as follows, I’ve added a lot of possible ip’s in hope of getting 1 running
The whitened out ip is my servers-public-ip/32
There are API calls to other public API’s like weathermap in the app and they work fine.
I’m using k3s binary on a Debian 10 machine.
The service type is LoadBalancer.
Following is my Deployment config
apiVersion: apps/v1
kind: Deployment
metadata:
name: some-name
spec:
selector:
matchLabels:
app: some-name
template:
metadata:
labels:
app: some-name
spec:
dnsPolicy: ClusterFirstWithHostNet
containers:
- name: some-name
image: me/myimg
resources:
limits:
memory: "128Mi"
cpu: "500m"
ports:
- containerPort: 3000
env:
env-variables-here
Following is my Service config
apiVersion: v1
kind: Service
metadata:
name: node-service
spec:
selector:
app: some-name
type: LoadBalancer
ports:
- port: 3000
targetPort: 3000
nodePort: 30001
