Helm chart to deploy to all nodes as DaemonSet (privileged container)

Dockerfile

@@ -1,6 +1,6 @@
-FROM alpine:3.3
-MAINTAINER Hortonworks
+FROM alpine:3.11
+MAINTAINER webmaster@highskillz.com
 
-RUN apk add --no-cache haveged
+RUN apk add --update --no-cache haveged=1.9.8-r0
 ENTRYPOINT ["haveged"]
 CMD ["-F"]

helm-chart/.helmignore

@@ -0,0 +1,22 @@
+
+# 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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj

helm-chart/Chart.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+name: haveged
+home: http://issihosts.com/haveged/
+version: 1.2.1
+appVersion: "1.9.8-r0"
+description: Deploy havegd to all nodes via DaemonSet to prevent low-entropy situations
+keywords:
+- haveged
+- entropy
+sources:
+- https://github.com/hsz-devops/docker-haveged
+maintainers:
+- name: joaocc
+  url: http://github.com/hsz-devops/docker-haveged

helm-chart/README.md

@@ -0,0 +1,13 @@
+This chart deploys hortonworks/haveged as privileged container to all nodes via DaemonSet
+
+Deploys to kube-system namespace
+
+To deploy, use
+	helm install --name haveged . --kube-context CLUSTER_CTXT
+
+Changelog:
+	1.2.1	2020-02-11	github/joaocc
+	1.0.0	2018-03-04	github/joaocc
+
+helm del --purge haveged --kube-context zzzzz
+helm upgrade --install --debug haveged . --kube-context zzzzz

helm-chart/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "haveged.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 "haveged.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 "haveged.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

helm-chart/templates/daemonset.yaml

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+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ template "haveged.fullname" . }}
+  namespace: kube-system
+  labels:
+    app: {{ template "haveged.name" . }}
+  #   chart: {{ template "haveged.chart" . }}
+  #   release: {{ .Release.Name }}
+  #   # heritage: {{ .Release.Service }}
+spec:
+  selector:
+    matchLabels:
+      daemonset: {{ template "haveged.name" . }}
+  template:
+    metadata:
+      labels:
+        daemonset: {{ template "haveged.name" . }}
+        # app: {{ template "haveged.name" . }}
+        # chart: {{ template "haveged.chart" . }}
+        # release: {{ .Release.Name }}
+        # # heritage: {{ .Release.Service }}
+    spec:
+      # selector:
+      #   matchLabels:
+      #     app: {{ template "haveged.name" . }}
+      #     # chart: {{ template "haveged.chart" . }}
+      #     # release: {{ .Release.Name }}
+      #     # heritage: {{ .Release.Service }}
+      containers:
+        - name: {{ template "haveged.name" . }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          securityContext:
+            privileged: true

helm-chart/values.yaml

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+# Default values for haveged.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: ez123/haveged
+  tag: "1.9"
+  pullPolicy: Always
+
+# 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
+
+# nodeSelector: {}
+
+# tolerations: []
+
+# affinity: {}