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demo-helm

A demo helm chart to deploy a simple web app written in Python.

Build and push the sample app image

Use the Makefile to build and push the image.

make push-app-image

Helm install/upgrade

New Deployments

helm install <NAME> charts/demo-helm 
OR
helm install charts/demo-helm --generate-name

Upgrading Deployments

Get your deployment ID

helm list

helm upgrade demo-helm-1633825301 charts/demo-helm

You can wait for successful deployment too.

helm upgrade demo-helm-1633825301 charts/demo-helm --wait

Setting registry pull secrets

You have to have an image pull secret. So first you need the secrets:

From: [The k8s docs]

kubectl create secret docker-registry regcred \
 --docker-server=https://registry.runcible.io \ 
 --docker-username=<your-name> \
 --docker-password=<your-pword> \
 --docker-email=<your-email>

Then you need to specify the secret in your deployment spec like so:

    spec:
      containers:
        - image: registry.runcible.io/demo-helm:1.0.1
          imagePullPolicy: Always
          name: backend
          ports:
            - name: backend
              containerPort: 5000
      imagePullSecrets:
        - name: regcred

Creating the Database password as a secret

kubectl -n <your namespace> create secret generic database_secret \
  --from-literal=password=<your secret>

The k8s docs

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