Deploy Iron Gallery App on Kubernetes value is not 'database_host'

Hi @KodeKloud,

I have just completed the task Deploy Iron Gallery App on Kubernetes. It has been marked as failed, even though I believe that I have correctly carried out the task.

This is the error returned:

template's spec env 'MYSQL_DATABASE' value is not 'database_host' under namespace 'iron-namespace-nautilus'

I have created the correct value for MYSQL_DATABASE, so I am not sure what the real error is, if any at all.

Could someone look into this for me to see if there is a possible validation error?

I have marked it for review, but so far it ‘looks’ like I may have completed the task correctly…nor entirely sure of course.

Thanks in advance:-)

hi @juliettet, can you please share your yml template ?

1 Like

Hi @rahul456,

Thank you for responding. This is how I created my secret:

kb create secret generic mysecret -n iron-namespace-nautilus --from-literal=MYSQL_DATABASE=database_host --from-literal=MYSQL_ROOT_PASSWORD=MYSQL_PASSWORD --from-literal=MYSQL_USER=customuser

Here is my iron-db-deployment-nautilus template:

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    db: mariadb
  name: iron-db-deployment-nautilus
  namespace: iron-namespace-nautilus
spec:
  replicas: 1
  selector:
    matchLabels:
      db: mariadb
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        db: mariadb
    spec:
      volumes:
      - name: db
        emptyDir: {}
      containers:
      - image: kodekloud/irondb:2.0
        name: iron-db-container-nautilus
        envFrom:
        - secretRef:
            name: mysecret
        volumeMounts:
        - name: db
          mountPath: /var/lib/mysql
        resources: {}
status: {}

Thanks again!

HI @juliettet

What i can see is that you are using imperative and declarative both . If you have already defined secrets using kubectl no need for passing secretRef in yaml file as it is looking for a definition file of secret mysecret and not able to find .

If you are specifying secretRef you need to create a secret-data.yml file too.

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Hello, @juliettet
I think you have to specify in this way:

  containers:
  - name: mycontainer
    image: redis
    env:
      - name: SECRET_USERNAME
        valueFrom:
          secretKeyRef:
            name: mysecret
            key: username
      - name: SECRET_PASSWORD
        valueFrom:
          secretKeyRef:
            name: mysecret
            key: password

For more clarifications. Please read from here.

1 Like

hi @juliettet, sorry for the issue, this is marked pending for you, please give it an another try.

1 Like

Thank you @sadiq1425! I will try to complete this task with a secret-data.yml like you have suggested.

Thank you @player001! I will look into this approach and try it out as well & thank you for the link:-)

Thank you for looking into this for me @rahul456!

Hello @player001, @sadiq1425 , & @rahul456,

I have just completed the task. This is what I ended up going with:

kb create secret generic mysecret -n iron-namespace-devops \
  --from-literal=MYSQL_DATABASE=database_web \
  --from-literal=MYSQL_ROOT_PASSWORD='rootpasswd' \
  --from-literal=MYSQL_PASSWORD='sqlpasswd' \
  --from-literal=MYSQL_USER=customuser -o yaml --dry-run=client > mix-sec.yaml

kbc  mix-sec.yaml
        env:
        - name: MYSQL_DATABASE
          valueFrom:
            secretKeyRef:
              name: mysecret
              key: MYSQL_DATABASE
        - name: MYSQL_USER
          valueFrom:
            secretKeyRef:
              name: mysecret
              key: MYSQL_USER
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysecret
              key: MYSQL_ROOT_PASSWORD
        - name: MYSQL_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysecret
              key: MYSQL_PASSWORD

Thanks again to everyone!!

1 Like

Does it resolve your issue ?

Hi @sadiq1425,

It’s difficult to say because it looks like there was more than one way to complete this task + it appears that there was a validation error(?) initially. Of all of the methods that I tried I got the same result. The task was reset for me, so I did not get the chance to check your (or Mando’s) suggestions as a solution. I would give you (and Mando) the points for helping out if I could.

Thanks for taking the time to look into this with me!!

1 Like