[stable/k8s-spot-termination-handler] AWS Spot termination handler (#8187)

* [stable/k8s-spot-termination-handler] Create k8s-spot-termination-handler chart Signed-off-by: Kierran McPherson <kierranm@gmail.com> * Fix README name; Add Configuration Signed-off-by: Kierran McPherson <kierranm@gmail.com>
2026-08-23 22:37:45 +00:00 · 2018-12-17 09:55:12 -08:00
parent c24793d146
commit aa83af5109
9 changed files with 227 additions and 0 deletions
@@ -0,0 +1,21 @@
+# 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
@@ -0,0 +1,14 @@
+apiVersion: v1
+appVersion: "0.1.0"
+description: The K8s Spot Termination handler handles draining AWS Spot Instances in response to termination requests.
+name: k8s-spot-termination-handler
+version: 0.1.0
+keywords:
+  - spot
+  - termination
+home: https://github.com/pusher/k8s-spot-termination-handler
+sources:
+  - https://github.com/pusher/k8s-spot-termination-handler
+maintainers:
+  - name: kierranm
+    email: kierranm@gmail.com
@@ -0,0 +1,3 @@
+To verify that k8s-spot-termination-handler has started, run:
+
+  kubectl --namespace={{ .Release.Namespace }} get pods -l "app={{ template "k8s-spot-termination-handler.name" . }},release={{ .Release.Name }}"
@@ -0,0 +1,43 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "k8s-spot-termination-handler.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-spot-termination-handler.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-spot-termination-handler.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "k8s-spot-termination-handler.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "k8s-spot-termination-handler.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
@@ -0,0 +1,39 @@
+{{- if .Values.rbac.create }}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ template "k8s-spot-termination-handler.fullname" . }}
+  labels:
+    app: {{ template "k8s-spot-termination-handler.name" . }}
+    chart: {{ template "k8s-spot-termination-handler.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+rules:
+  # For draining nodes
+  - apiGroups:
+      - ""
+    resources:
+      - nodes
+    verbs:
+      - get
+      - update
+  - apiGroups:
+      - ""
+    resources:
+      - pods
+    verbs:
+      - list
+  - apiGroups:
+      - extensions
+    resources:
+      - replicasets
+      - daemonsets
+    verbs:
+      - get
+  - apiGroups:
+      - ""
+    resources:
+      - pods/eviction
+    verbs:
+      - create
+{{- end}}
@@ -0,0 +1,19 @@
+{{- if .Values.rbac.create }}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ template "k8s-spot-termination-handler.fullname" . }}
+  labels:
+    app: {{ template "k8s-spot-termination-handler.name" . }}
+    chart: {{ template "k8s-spot-termination-handler.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ template "k8s-spot-termination-handler.fullname" . }}
+subjects:
+- kind: ServiceAccount
+  name: {{ template "k8s-spot-termination-handler.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+{{- end}}
@@ -0,0 +1,39 @@
+apiVersion: extensions/v1beta1
+kind: DaemonSet
+metadata:
+  name: {{ include "k8s-spot-termination-handler.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "k8s-spot-termination-handler.name" . }}
+    helm.sh/chart: {{ include "k8s-spot-termination-handler.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "k8s-spot-termination-handler.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          env:
+            - name: NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}
@@ -0,0 +1,11 @@
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "k8s-spot-termination-handler.serviceAccountName" . }}
+  labels:
+    app: {{ template "k8s-spot-termination-handler.name" . }}
+    chart: {{ template "k8s-spot-termination-handler.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+{{- end }}
@@ -0,0 +1,38 @@
+# Default values for k8s-spot-termination-handler.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+rbac:
+  # Specifies whether RBAC resources should be created
+  create: true
+
+serviceAccount:
+  # Specifies whether a ServiceAccount should be created
+  create: true
+  # The name of the ServiceAccount to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name:
+
+image:
+  repository: quay.io/pusher/k8s-spot-termination-handler
+  tag: v0.1.0
+  pullPolicy: IfNotPresent
+
+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:'.
+  # requests:
+  #   cpu: 5m
+  #   memory: 20Mi
+  # limits:
+  #   cpu: 100m
+  #   memory: 100Mi
+
+# By default, schedule only on spot workers
+nodeSelector:
+  "node-role.kubernetes.io/spot-worker": "true"
+
+tolerations: []
+
+affinity: {}