Add Helm Chart for Kubernetes Deployments

[ricksalsa]

Add support for deploying AppScope in Kubernetes via a Helm Chart, in addition to the existing scope k8s cli command.

Acceptance Criteria

• Host charts in the https://github.com/criblio/helm-charts repo
• Use the output from existing scope k8s to generate new templates for Helm chart
  • MutatingWebhookConfiguration, ClusterRole, ClusterRoleBinding, ServiceAccount, Deployment, Service, and ConfigMap
• Unit tests for each K8s resource (see edge examples)
• Default values file should allow overrides for:
  • image & tag
  • nameOverride
  • fullnameOverride
• User should be able to specify a destination of:
  • metrics
  • events
  • cribl
• Default configuration for Appscope metric & event should be:
  • type: fs
  • type: net
  • type: http
  • type: dns
  • type: process
• User should be able to override the Appscope configmap configuration to support custom configuration of scoped containers.
• Authentication tokens for Cribl destinations must be stored as a secret in Kubernetes

[michalbiesek]

Current status:

• My current development is here
• The repository above is my fork of crilb helm-chart repo
• In https://github.com/michalbiesek/helm-charts I refer to mbiesekcribl DockerHub

Helm & scope can be used with michalbiesek helm chart repo: To test it locally please run following

kind create cluster
helm repo add cribl https://michalbiesek.github.io/helm-charts/
helm install appscope cribl/appscope --set config.cribldest="tcp://cribl-internal:10090"
# kind delete cluster

[michalbiesek]

Pull Request of the AppScope helm is available here: https://github.com/criblio/helm-charts/pull/133