Myujth

I use Minikube for simulating my Kubernetes production architecture.
In the cluster, I need to create a website and I decided to use Sails.js.

Here is my Kubernetes configuration :

apiVersion: v1
kind: PersistentVolume
metadata:
 name: white-label-storage-persistent-volume
 labels:
 type: local
 app: white-label
 role: master
 tier: backend
spec:
 storageClassName: manual
 capacity:
 storage: 5Gi
 accessModes:
 - ReadWriteMany
 hostPath:
 path: "/white-label-data"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
 name: white-label-storage-persistent-volume-claim
 labels:
 app: white-label
 role: master
 tier: backend
spec:
 storageClassName: manual
 accessModes:
 - ReadWriteMany
 resources:
 requests:
 storage: 5Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
 name: white-label-deployment
 labels:
 app: white-label
 role: master
 tier: backend
spec:
 replicas: 1
 strategy:
 type: RollingUpdate
 selector:
 matchLabels:
 app: white-label
 role: master
 tier: backend
 template:
 metadata:
 labels:
 app: white-label
 role: master
 tier: backend
 spec:
 containers:
 - name: white-label
 image: pastel-white-label:v1
 imagePullPolicy: IfNotPresent
 workingDir: "/usr/src/app"
 resources:
 requests:
 memory: 2Gi
 cpu: 1
 limits:
 memory: 4Gi
 cpu: 2
 ports:
 - containerPort: 1337
 protocol: TCP
 volumeMounts:
 - mountPath: "/data"
 name: white-label-persistent-volume
 volumes:
 - name: white-label-persistent-volume
 persistentVolumeClaim:
 claimName: white-label-storage-persistent-volume-claim
---
apiVersion: v1
kind: Service
metadata:
 name: white-label-service
 labels:
 app: white-label
 role: master
 tier: backend
spec:
 type: LoadBalancer
 ports:
 - port: 1337
 protocol: TCP
 nodePort: 30003
 selector:
 app: white-label
 role: master
 tier: backend
 sessionAffinity: None
---
apiVersion: autoscaling/v1
kind: HorizontalPodAutoscaler
metadata:
 name: white-label-hpa
 labels:
 app: white-label
 role: master
 tier: backend
 namespace: default
spec:
 maxReplicas: 5
 minReplicas: 1
 scaleTargetRef:
 apiVersion: extensions/v1
 kind: Deployment
 name: white-label-deployment
 targetCPUUtilizationPercentage: 80

And here is the pastel-white-label:v1 Docker image :

FROM node:10.13.0-stretch

WORKDIR /usr/src/app
COPY . ./

RUN npm install -g sails npm-check-updates
RUN npm install @sailshq/connect-redis --save
RUN npm install

CMD ["sails", "lift"]

When I start my cluster and build my pod, everything works like a charm.
My Sails.js log is spotless, I can see the home page in the browser: no problem at all. I use Sails.js v1.1.0 in Web app mode out of the box BTW. I can see as well that Grunt is launched and is watching.

Now if I edit a .less file though, I get an unfriendly:

debug: -------------------------------------------------------
error: ** Grunt :: An error occurred. **
error: 
------------------------------------------------------------------------

Aborted due to warnings.
Running "watch" task
Waiting...
>> File "assets/styles/styleguide/colors.less" changed.
Loading "sync.js" tasks...ERROR
>> TypeError: Cannot read property 'length' of undefined
Warning: Task "sync:dev" not found.

I am sure my .less file has no error (hexa code edition), my .tmp folder is writable (touch .tmp/foo is working for instance) and I believe Grunt is correctly installed as it comes out of the box...

Then I really don't know what is going on here...

Do you guys have an idea, please ?

Thank you ahead

I think you are running into exactly this. Looks like it's specific to the node version. You can try an earlier version for your node docker image:

FROM node:8.12.0-stretch