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Add support for hostAliases (#234)
* Add support for hostAliases Signed-off-by: Joel Damata <[email protected]> * bump chart version and run pre-commit Signed-off-by: Corey Daley <[email protected]> --------- Signed-off-by: Joel Damata <[email protected]> Signed-off-by: Corey Daley <[email protected]> Co-authored-by: Joel Damata <[email protected]>
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‎charts/backstage/Chart.yaml

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@@ -38,4 +38,4 @@ sources:
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# This is the chart version. This version number should be incremented each time you make changes
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# to the chart and its templates, including the app version.
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# Versions are expected to follow Semantic Versioning (https://semver.org/)
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version: 2.1.0
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version: 2.2.0

‎charts/backstage/README.md

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# Backstage Helm Chart
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[![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/backstage)](https://artifacthub.io/packages/search?repo=backstage)
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![Version: 2.1.0](https://img.shields.io/badge/Version-2.1.0-informational?style=flat-square)
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![Version: 2.2.0](https://img.shields.io/badge/Version-2.2.0-informational?style=flat-square)
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![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
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A Helm chart for deploying a Backstage application
@@ -127,6 +127,7 @@ Kubernetes: `>= 1.19.0-0`
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| backstage.extraEnvVarsSecrets | Backstage container environment variables from existing Secrets | list | `[]` |
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| backstage.extraVolumeMounts | Backstage container additional volume mounts | list | `[]` |
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| backstage.extraVolumes | Backstage container additional volumes | list | `[]` |
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| backstage.hostAliases | Host Aliases for the pod <br /> Ref: https://kubernetes.io/docs/concepts/services-networking/add-entries-to-pod-etc-hosts-with-host-aliases/ | list | `[]` |
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| backstage.image.digest | Backstage image digest (digest takes precedence over image tag) | string | `""` |
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| backstage.image.pullPolicy | Specify a imagePullPolicy. Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent' <br /> Ref: https://kubernetes.io/docs/concepts/containers/images/#image-pull-policy | string | `"Always"` |
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| backstage.image.pullSecrets | Optionally specify an array of imagePullSecrets. Secrets must be manually created in the namespace. <br /> Ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/ <br /> E.g: `pullSecrets: [myRegistryKeySecretName]` | list | `[]` |

‎charts/backstage/templates/backstage-deployment.yaml

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@@ -59,6 +59,10 @@ spec:
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tolerations:
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{{- include "common.tplvalues.render" ( dict "value" .Values.backstage.tolerations "context" $) | nindent 8 }}
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{{- end }}
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{{- if .Values.backstage.hostAliases }}
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hostAliases:
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{{- include "common.tplvalues.render" ( dict "value" .Values.backstage.hostAliases "context" $) | nindent 8 }}
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{{- end }}
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volumes:
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{{- if (or .Values.backstage.extraAppConfig (and .Values.backstage.extraVolumeMounts .Values.backstage.extraVolumes)) }}
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{{- range .Values.backstage.extraAppConfig }}

‎charts/backstage/values.schema.json

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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"x-kubernetes-map-type": "atomic"
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},
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"dataSourceRef": {
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"description": "TypedObjectReference contains enough information to let you locate the typed referenced object",
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"properties": {
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"apiGroup": {
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"description": "APIGroup is the group for the resource being referenced. If APIGroup is not specified, the specified Kind must be in the core API group. For any other third-party types, APIGroup is required.",
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"title": "Backstage container additional volumes",
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"type": "array"
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},
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"hostAliases": {
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"default": [],
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"description": "Ref: https://kubernetes.io/docs/tasks/network/customize-hosts-file-for-pods/#adding-additional-entries-with-hostaliases",
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"items": {
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"description": "HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the pod's hosts file.",
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"properties": {
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"hostnames": {
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"description": "Hostnames for the above IP address.",
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"items": {
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"type": "string"
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},
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"type": "array",
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"x-kubernetes-list-type": "atomic"
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},
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"ip": {
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"description": "IP address of the host file entry.",
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"type": "string"
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}
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},
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"required": [
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"ip"
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],
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"type": "object"
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},
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"title": "Adding entries to a Pod's /etc/hosts file provides Pod-level override of hostname resolution when DNS and other options are not applicable",
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"type": "array"
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},
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"image": {
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"additionalProperties": false,
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"properties": {
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",
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"type": "integer"
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},
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"grpc": {
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"description": "GRPCAction specifies an action involving a GRPC service.",
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"properties": {
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"port": {
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"description": "Port number of the gRPC service. Number must be in the range 1 to 65535.",

‎charts/backstage/values.schema.tmpl.json

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},
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"default": []
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},
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"hostAliases": {
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"title": "Adding entries to a Pod's /etc/hosts file provides Pod-level override of hostname resolution when DNS and other options are not applicable",
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"description": "Ref: https://kubernetes.io/docs/tasks/network/customize-hosts-file-for-pods/#adding-additional-entries-with-hostaliases",
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"type": "array",
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"items": {
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"$ref": "https://raw.githubusercontent.com/yannh/kubernetes-json-schema/master/master/_definitions.json#/definitions/io.k8s.api.core.v1.HostAlias"
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},
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"default": []
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},
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"podAnnotations": {
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"title": "Annotations to add to the backend deployment pods",
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"type": "object",

‎charts/backstage/values.yaml

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# value: "value"
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# effect: "NoSchedule|PreferNoSchedule|NoExecute"
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# -- Host Aliases for the pod
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# <br /> Ref: https://kubernetes.io/docs/concepts/services-networking/add-entries-to-pod-etc-hosts-with-host-aliases/
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hostAliases: []
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# -- Annotations to add to the backend deployment pods
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podAnnotations: {}
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