Dev 335/preview helm changes

deploy/helm-preview/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

deploy/helm-preview/Chart.yaml

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+apiVersion: v2
+name: helm
+description: A Helm chart for ballerine
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.0.1
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.4.14"
+dependencies:
+  - condition: postgresql.enabled
+    name: postgresql
+    version: 12.0.0
+    appVersion: 15.0.0
+    repository: https://charts.bitnami.com/bitnami

deploy/helm-preview/README.md

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+# Install ballerine using helm chart for Preview Environment
+
+Ballerine is a collection of services like workflow-service, backoffice.
+In values.yaml we have sections to enable/disable them based on the necessity like below
+
+```bash
+workflowService:
+  enabled: true
+.
+.
+
+backoffice:
+  enabled: true
+.
+.
+headlessexample:
+  enabled: true
+.
+.
+```
+
+## Prerequisites
+
+- kubernetes cluster
+- [helm](https://helm.sh/docs/intro/install/)
+- [kubectl](https://storage.googleapis.com/kubernetes-release/release/v1.23.6/bin/linux/amd64/kubectl) preferably 1.24 or less upto 1.23
+
+### How to install
+
+Move to deploy directory
+
+```bash
+cd deploy/helm
+```
+
+### Setup Postgresql
+
+#### Install postgresql along with ballerine
+
+- edit values.yaml
+
+```bash
+## Postgres params
+postgresql:
+  enabled: true
+  auth:
+    username: admin
+    password: admin
+    postgresPassword: admin
+    database: postgres
+#   Local dev purpose
+#   persistence:
+#     existingClaim: postgresql-pv-claim
+#   volumePermissions:
+#     enabled: true
+```
+
+#### How to use managed postgresql along with ballerine
+
+- edit values.yaml
+
+```bash
+## Postgres params
+postgresql:
+  enabled: false
+.
+.
+.
+.
+  applicationConfig:
+    BCRYPT_SALT: "10"
+    SESSION_EXPIRATION_IN_MINUTES: "60"
+    DB_URL: "<Managed DB_URL with databasename>"
+    DB_USER: "<Managed DB_USER>"
+    DB_PASSWORD: "<Managed DB_PASSWORD>"
+    DB_PORT: "5432"
+```
+
+### Installing Ballerine helm chart
+
+```bash
+helm dep build
+helm install ballerine . -n ballerine --create-namespace -f example.values.yaml
+```
+
+### Troubleshooting
+
+```bash
+kubectl get pods -n ballerine
+```
+
+- Note the pod name of service you wish to trouble shoot
+
+```bash
+kubectl logs <pod> -n ballerine
+```
+
+- Accessing the application
+
+```bash
+kubectl port-forward svc/<service> -n ballerine 3000:3000
+```