Merge pull request #80 from prashant-shahi/feat/k8s-infra

feat: ✨ introduce k8s-infra chart

charts/k8s-infra/.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/

charts/k8s-infra/Chart.yaml

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+apiVersion: v2
+name: k8s-infra
+description: Helm chart for collecting metrics and logs in K8s
+type: application
+version: 0.1.0
+appVersion: "0.55.0"
+home: https://signoz.io
+icon: https://signoz.io/img/SigNozLogo-orange.svg
+keywords:
+  - SigNoz
+  - OpenTelemetry
+  - apm
+  - monitoring
+  - logs
+sources:
+  - https://github.com/signoz/charts
+  - https://github.com/open-telemetry/opentelemetry-collector-contrib
+maintainers:
+  - name: SigNoz
+    email: hello@signoz.io
+    url: https://signoz.io
+  - name: prashant-shahi
+    email: prashant@signoz.io
+    url: https://prashantshahi.dev

charts/k8s-infra/templates/NOTES.txt

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+{{- if not .Values.otelAgent.configMap.create }}
+[WARNING] "configMap" wil not be created and "config" will not take effect.
+{{ end }}
+
+{{- if not .Values.otelDeployment.configMap.create }}
+[WARNING] "configMap" wil not be created and "config" will not take effect.
+{{ end }}

charts/k8s-infra/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "k8s-infra.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "k8s-infra.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "k8s-infra.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Return namespace of the release
+*/}}
+{{- define "k8s-infra.namespace" -}}
+{{- .Release.Namespace -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name for the agent.
+*/}}
+{{- define "otelAgent.fullname" -}}
+{{- printf "%s-%s" (include "k8s-infra.fullname" .) .Values.otelAgent.name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels for agent.
+*/}}
+{{- define "otelAgent.labels" -}}
+helm.sh/chart: {{ include "k8s-infra.chart" . }}
+{{ include "otelAgent.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels for agent.
+*/}}
+{{- define "otelAgent.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "k8s-infra.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/component: {{ include "otelAgent.name" . }}
+{{- end }}
+
+{{/*
+Name of the component agent.
+*/}}
+{{- define "otelAgent.name" -}}
+{{ default "otel-agent" .Values.otelAgent.name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use for agent.
+*/}}
+{{- define "otelAgent.serviceAccountName" -}}
+{{- if .Values.otelAgent.serviceAccount.create }}
+{{- default (include "otelAgent.fullname" .) .Values.otelAgent.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.otelAgent.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Return the proper image name of agent.
+*/}}
+{{- define "otelAgent.image" -}}
+{{- $registryName := default .Values.otelAgent.image.registry .Values.global.image.registry -}}
+{{- $repositoryName := .Values.otelAgent.image.repository -}}
+{{- $tag := default .Chart.AppVersion .Values.otelAgent.image.tag | toString -}}
+{{- if $registryName -}}
+    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+{{- else -}}
+    {{- printf "%s:%s" $repositoryName $tag -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create the name of the clusterRole to use for agent.
+*/}}
+{{- define "otelAgent.clusterRoleName" -}}
+{{- if .Values.otelAgent.clusterRole.create }}
+{{- $clusterRole := printf "%s-%s" (include "otelAgent.fullname" .) (include "k8s-infra.namespace" .) }}
+{{- default $clusterRole .Values.otelAgent.clusterRole.name }}
+{{- else }}
+{{- default "default" .Values.otelAgent.clusterRole.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the clusterRoleBinding to use for agent.
+*/}}
+{{- define "otelAgent.clusterRoleBindingName" -}}
+{{- if .Values.otelAgent.clusterRole.create }}
+{{- $clusterRole := printf "%s-%s" (include "otelAgent.fullname" .) (include "k8s-infra.namespace" .) }}
+{{- default $clusterRole .Values.otelAgent.clusterRole.clusterRoleBinding.name }}
+{{- else }}
+{{- default "default" .Values.otelAgent.clusterRole.clusterRoleBinding.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name for the deployment.
+*/}}
+{{- define "otelDeployment.fullname" -}}
+{{- printf "%s-%s" (include "k8s-infra.fullname" .) .Values.otelDeployment.name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels for deployment.
+*/}}
+{{- define "otelDeployment.labels" -}}
+helm.sh/chart: {{ include "k8s-infra.chart" . }}
+{{ include "otelDeployment.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels for deployment.
+*/}}
+{{- define "otelDeployment.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "k8s-infra.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/component: {{ include "otelDeployment.name" . }}
+{{- end }}
+
+{{/*
+Name of the component deployment.
+*/}}
+{{- define "otelDeployment.name" -}}
+{{ default "otel-deployment" .Values.otelDeployment.name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use for deployment.
+*/}}
+{{- define "otelDeployment.serviceAccountName" -}}
+{{- if .Values.otelDeployment.serviceAccount.create }}
+{{- default (include "otelDeployment.fullname" .) .Values.otelDeployment.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.otelDeployment.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Return the proper image name of deployment.
+*/}}
+{{- define "otelDeployment.image" -}}
+{{- $registryName := default .Values.otelDeployment.image.registry .Values.global.image.registry }}
+{{- $repositoryName := .Values.otelDeployment.image.repository }}
+{{- $tag := default .Chart.AppVersion .Values.otelDeployment.image.tag | toString }}
+{{- if $registryName }}
+    {{- printf "%s/%s:%s" $registryName $repositoryName $tag }}
+{{- else }}
+    {{- printf "%s:%s" $repositoryName $tag }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the clusterRole to use for deployment.
+*/}}
+{{- define "otelDeployment.clusterRoleName" -}}
+{{- if .Values.otelDeployment.clusterRole.create }}
+{{- $clusterRole := printf "%s-%s" (include "otelDeployment.fullname" .) (include "k8s-infra.namespace" .) }}
+{{- default $clusterRole .Values.otelDeployment.clusterRole.name }}
+{{- else }}
+{{- default "default" .Values.otelDeployment.clusterRole.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the clusterRoleBinding to use for deployment.
+*/}}
+{{- define "otelDeployment.clusterRoleBindingName" -}}
+{{- if .Values.otelDeployment.clusterRole.create }}
+{{- $clusterRole := printf "%s-%s" (include "otelDeployment.fullname" .) (include "k8s-infra.namespace" .) }}
+{{- default $clusterRole .Values.otelDeployment.clusterRole.clusterRoleBinding.name }}
+{{- else }}
+{{- default "default" .Values.otelDeployment.clusterRole.clusterRoleBinding.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Return endpoint of OtelCollector.
+*/}}
+{{- define "otel.endpoint" -}}
+{{- default "my-release-signoz-otel-collector.platform.svc.cluster.local:4317" .Values.otelCollectorEndpoint }}
+{{- end }}
+
+{{/*
+Return structured list of ports config for Service.
+*/}}
+{{- define "otel.portsConfig" -}}
+{{- $serviceType := deepCopy .service.type }}
+{{- $ports := deepCopy .ports }}
+{{- range $key, $port := $ports }}
+{{- if $port.enabled }}
+- name: {{ $key }}
+  port: {{ $port.servicePort }}
+  targetPort: {{ $key }}
+  protocol: {{ $port.protocol }}
+  {{- if (eq $serviceType "ClusterIP") }}
+  nodePort: null
+  {{- else if (eq $serviceType "NodePort") }}
+  nodePort: {{ $port.nodePort }}
+  {{- end }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Return the appropriate apiVersion for ingress.
+*/}}
+{{- define "ingress.apiVersion" -}}
+  {{- if and (.Capabilities.APIVersions.Has "networking.k8s.io/v1") (semverCompare ">= 1.19-0" .Capabilities.KubeVersion.Version) -}}
+      {{- print "networking.k8s.io/v1" -}}
+  {{- else if .Capabilities.APIVersions.Has "networking.k8s.io/v1beta1" -}}
+    {{- print "networking.k8s.io/v1beta1" -}}
+  {{- else -}}
+    {{- print "extensions/v1beta1" -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Return if ingress supports pathType.
+*/}}
+{{- define "ingress.supportsPathType" -}}
+  {{- or (eq (include "ingress.isStable" .) "true") (and (eq (include "ingress.apiVersion" .) "networking.k8s.io/v1beta1") (semverCompare ">= 1.18-0" .Capabilities.KubeVersion.Version)) -}}
+{{- end -}}
+
+{{/*
+Return if ingress is stable.
+*/}}
+{{- define "ingress.isStable" -}}
+  {{- eq (include "ingress.apiVersion" .) "networking.k8s.io/v1" -}}
+{{- end -}}

charts/k8s-infra/templates/otel-agent/clusterrole.yaml

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+{{- if .Values.otelAgent.clusterRole.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "otelAgent.clusterRoleName" . }}
+  namespace: {{ include "k8s-infra.namespace" . }}
+  {{- with .Values.otelAgent.clusterRole.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+rules:
+  {{ toYaml .Values.otelAgent.clusterRole.rules | nindent 2 -}}
+{{- end }}

charts/k8s-infra/templates/otel-agent/clusterrolebinding.yaml

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+{{- if .Values.otelAgent.clusterRole.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "otelAgent.clusterRoleBindingName" . }}
+  namespace: {{ include "k8s-infra.namespace" . }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "otelAgent.clusterRoleName" . }}
+subjects:
+  - name: {{ include "otelAgent.serviceAccountName" . }}
+    kind: ServiceAccount
+    namespace: {{ include "k8s-infra.namespace" . }}
+{{- end }}

charts/k8s-infra/templates/otel-agent/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "otelAgent.fullname" . }}
+  labels:
+    {{- include "otelAgent.labels" . | nindent 4 }}
+data:
+  otel-agent-config.yaml: |-
+    {{- toYaml .Values.otelAgent.config | nindent 4 }}