Adding a Helm chart to install in Kubernetes (#1010)

* first pass at a helm chart

* more cleanup

* adding more stuff

* trying to generate the DB password

* more fixes and hardening

* Don't need to bake this in

* switching these back to the defaults

* more cleanup

* bumping the app version to match release

* some fixes

* updating volumeMounts too

* and disabling the PVCs if we aren't using them

* fixing the spacing

---------

Co-authored-by: Aditya Chandel <8075870+adityachandelgit@users.noreply.github.com>

example-chart/values.yaml

@@ -0,0 +1,121 @@
+# Default values for booklore.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+mariadb:
+  enabled: true
+  image:
+    tag: 11.8.3
+  auth:
+    database: booklore
+    username: booklore-user
+
+# This sets the container image more information can be found here: https://kubernetes.io/docs/concepts/containers/images/
+image:
+  repository: booklore/booklore
+  # This sets the pull policy for images.
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: latest
+
+# This is for the secrets for pulling an image from a private repository more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+imagePullSecrets: []
+# This is to override the chart name.
+nameOverride: ""
+fullnameOverride: ""
+
+# This section builds out the service account more information can be found here: https://kubernetes.io/docs/concepts/security/service-accounts/
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+# This is for setting Kubernetes Annotations to a Pod.
+# For more information checkout: https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/
+podAnnotations: {}
+# This is for setting Kubernetes Labels to a Pod.
+# For more information checkout: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
+podLabels: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+# This is for setting up a service more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/
+service:
+  # This sets the service type more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
+  type: ClusterIP
+  # This sets the ports more information can be found here: https://kubernetes.io/docs/concepts/services-networking/service/#field-spec-ports
+  port: 6060
+
+# This block is for setting up the ingress for more information can be found here: https://kubernetes.io/docs/concepts/services-networking/ingress/
+ingress:
+  enabled: false
+  className: ""
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: chart-example.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+# # This is to setup the liveness and readiness probes more information can be found here: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/
+livenessProbe:
+  tcpSocket:
+    port: http
+readinessProbe:
+  tcpSocket:
+    port: http
+
+# If you want to bring your own persistence (such as a hostPath),
+# disable these and do so in extraVolumes/extraVolumeMounts
+persistence:
+  dataVolume:
+    enabled: true
+    size: 100Mi
+    existingClaim: ""
+  booksVolume:
+    enabled: true
+    size: 10Gi
+    existingClaim: ""
+
+extraVolumes: []
+
+extraVolumeMounts: []
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}