I am a newbie to this k8s ingress, please help.
Current problem is I am trying to use k8s to create mongo-express service which inturn will connect to MongoDB service. Now when I tried to expose mongo-express to an external service by setting type: LoadBalancer
it quickly creates up an IP and I am able to access my db via it. But same when I am trying to do expose it to a domain name via ingress I am not getting assigned an address
Mongo DB Deployment :
apiVersion: apps/v1
kind: Deployment
metadata:
name: mongo-deployments
labels:
app: mongodb
spec:
replicas: 3
selector:
matchLabels:
app: mongodb
template:
metadata:
labels:
app: mongodb
spec:
containers:
- name: mongodb
image: mongo
ports:
- containerPort: 27017
env:
- name: MONGO_INITDB_ROOT_USERNAME
valueFrom:
secretKeyRef:
name: mongo-secrets
key: mongo-root-username
- name: MONGO_INITDB_ROOT_PASSWORD
valueFrom:
configMapKeyRef:
name: mongo-coi
key: mongo-root-password
Mongo DB Service
apiVersion: v1
kind: Service
metadata:
name: mongodb-service
spec:
selector:
app: mongodb
ports:
- protocol: TCP
port : 27017
targetPort: 27017
Mongo express deployment :
apiVersion: apps/v1
kind: Deployment
metadata:
name: mongo-express-deployments
labels:
app: mongo-express
spec:
replicas: 1
selector:
matchLabels:
app: mongo-express
template:
metadata:
labels:
app: mongo-express
spec:
containers:
- name: mongo-express
image: mongo-express
ports:
- containerPort: 8081
env:
- name: ME_CONFIG_MONGODB_ADMINUSERNAME
valueFrom:
secretKeyRef:
name: mongo-secrets
key: mongo-root-username
- name: ME_CONFIG_MONGODB_ADMINPASSWORD
valueFrom:
secretKeyRef:
name: mongo-secrets
key: mongo-root-password
- name: ME_CONFIG_MONGODB_SERVER
valueFrom:
configMapKeyRef:
name: mongo-config-map
key: database-url
Mongo express service file
apiVersion: v1
kind: Service
metadata:
name: mongo-express-service
spec:
selector:
app: mongo-express
# type: LoadBalancer
ports:
- protocol: TCP
port : 8081
targetPort: 8081
# nodePort : 31313
mongo ingress file :
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: mongo-express-dashboard
namespace: default
annotations:
kubernetes.io/ingress.class: public
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
rules:
- host: mongo-jainva.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: mongo-express-service
port:
number: 8081
I am attaching how my current k8s structure looks like :
NAME READY STATUS RESTARTS AGE
pod/mongo-deployments-66764645fc-jpjf2 1/1 Running 0 3d2h
pod/mongo-express-deployments-976669559-l4s7h 1/1 Running 0 3d
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 40d
service/mongo-express-service ClusterIP 10.109.215.229 <none> 8081/TCP 3d
service/mongodb-service ClusterIP 10.103.145.203 <none> 27017/TCP 3d2h
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/mongo-deployments 1/1 1 1 3d2h
deployment.apps/mongo-express-deployments 1/1 1 1 3d1h
NAME DESIRED CURRENT READY AGE
replicaset.apps/mongo-deployments-66764645fc 1 1 1 3d2h
replicaset.apps/mongo-express-deployments-59f9544cf7 0 0 0 3d1h
replicaset.apps/mongo-express-deployments-854b7f8b86 0 0 0 3d
replicaset.apps/mongo-express-deployments-976669559 1 1 1 3d
Attaching current ingress status
NAME CLASS HOSTS ADDRESS PORTS AGE
mongo-express-dashboard <none> mongo-jainva.com 80 33m
And also sharing description of ingres file
Name: mongo-express-dashboard
Labels: <none>
Namespace: default
Address:
Ingress Class: <none>
Default backend: <default>
Rules:
Host Path Backends
---- ---- --------
mongo-jainva.com
/ mongo-express-service:8081 (172.17.0.4:8081)
Annotations: kubernetes.io/ingress.class: public
nginx.ingress.kubernetes.io/rewrite-target: /
Events: <none>
NOTE – I have already tried mentioned IP 172.17.0.4:8081
its not working and also I am not able to understand what IP address it is specifying
2
Answers
Thank you guys whosoever responded, I have figured out the problem Problem is that in ingress file I have mentioned 2 ingress classes somehow the first one
kubernetes.io/ingress.class: public
is creating a problem after removing it I was able to see the addressFor now, I am closing this question but still I have one question if anyone can kindly answer When I use below showned ingress-controller to route my mongo-express in ingress file I see all JS and other styling files are not coming with mongo-express due to which I could see mongo-express buttons but completely ruined UI
But if I change the above code line to
It gives me a clean and stable UI what does this
$1
specifies due to which I am seeing this behaviourWhich ingress-controller did you install? I see ingress-class as
None
. Make sure you have installed ingress-controller and set proper ingress class in ingress resource.