Add envoy helm charts (#26)

charts/envoy/Chart.yaml

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+apiVersion: v2
+name: envoy
+description: Envoy Proxy for Scalar applications
+type: application
+version: 1.0.0
+appVersion: 1.1.0
+deprecated: false
+icon: https://scalar-labs.com/wp-content/themes/scalar/assets/img/logo_scalar.svg
+keywords:
+- envoy
+- grpc
+- grpc-server
+home: https://scalar-labs.com/
+sources:
+- https://github.com/scalar-labs/scalar-envoy
+maintainers:
+  - name: Yusuke Morimoto
+    email: [email protected]
+  - name: Yuji Mise
+    email: [email protected]
+  - name: Hiroyuki Yamada
+    email: [email protected]

charts/envoy/README.md

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+# envoy
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square)  ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)  ![AppVersion: 1.1.0](https://img.shields.io/badge/AppVersion-1.1.0-informational?style=flat-square)
+
+Envoy Proxy for Scalar applications
+Current chart version is `1.0.0`
+
+**Homepage:** <https://scalar-labs.com/>
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| affinity | object | `{}` | the affinity/anti-affinity feature, greatly expands the types of constraints you can express |
+| envoyConfiguration.adminAccessLogPath | string | `"/dev/stdout"` | admin log path |
+| grafanaDashboard.enabled | bool | `false` | enable grafana dashboard |
+| grafanaDashboard.namespace | string | `"monitoring"` | which namespace grafana dashboard is located. by default monitoring |
+| image.pullPolicy | string | `"IfNotPresent"` | Specify a imagePullPolicy |
+| image.repository | string | `"ghcr.io/scalar-labs/scalar-envoy"` | Docker image |
+| image.version | string | `"1.1.0"` |  |
+| imagePullSecrets | list | `[]` | Optionally specify an array of imagePullSecrets. Secrets must be manually created in the namespace. |
+| nodeSelector | object | `{}` | nodeSelector is form of node selection constraint |
+| podSecurityContext | object | `{}` | PodSecurityContext holds pod-level security attributes and common container settings |
+| prometheusRule.enabled | bool | `false` | enable rules for prometheus |
+| prometheusRule.namespace | string | `"monitoring"` | which namespace prometheus is located. by default monitoring |
+| replicaCount | int | `3` | number of replicas to deploy |
+| resources | object | `{}` | resources allowed to the pod |
+| securityContext | object | `{}` | Setting security context at the pod applies those settings to all containers in the pod |
+| service.annotations | object | `{}` | Service annotations, e.g: prometheus, etc. |
+| service.ports.envoy-priv.port | int | `50052` | nvoy public port |
+| service.ports.envoy-priv.protocol | string | `"TCP"` | envoy protocol |
+| service.ports.envoy-priv.targetPort | int | `50052` | envoy k8s internal name |
+| service.ports.envoy.port | int | `50051` | envoy public port |
+| service.ports.envoy.protocol | string | `"TCP"` | envoy protocol |
+| service.ports.envoy.targetPort | int | `50051` | envoy k8s internal name |
+| service.type | string | `"ClusterIP"` | service types in kubernetes |
+| serviceMonitor.enabled | bool | `false` | enable metrics collect with prometheus |
+| serviceMonitor.interval | string | `"15s"` | custom interval to retrieve the metrics |
+| serviceMonitor.namespace | string | `"monitoring"` | which namespace prometheus is located. by default monitoring |
+| strategy.rollingUpdate | object | `{"maxSurge":"25%","maxUnavailable":"25%"}` | The number of pods that can be unavailable during the update process |
+| strategy.type | string | `"RollingUpdate"` | New pods are added gradually, and old pods are terminated gradually, e.g: Recreate or RollingUpdate |
+| tolerations | list | `[]` | Tolerations are applied to pods, and allow (but do not require) the pods to schedule onto nodes with matching taints. |

charts/envoy/README.md.gotmpl

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+{{ template "chart.header" . }}
+
+{{ template "chart.versionBadge" . }} {{ template "chart.typeBadge" . }} {{ template "chart.appVersionBadge" . }}
+
+{{ template "chart.description" . }}
+Current chart version is `{{ template "chart.version" . }}`
+
+**Homepage:** <https://scalar-labs.com/>
+
+{{ template "chart.requirementsSection" . }}
+
+{{ template "chart.valuesSection" . }}