Micke Nordin
324724c3b1
Export 3.0.3 like so: ``` helm repo add jupyterhub https://hub.jupyter.org/helm-chart/ helm fetch jupyterhub/jupyterhub --version 3.0.3 --untar --untardir . ```
252 lines
9.6 KiB
Smarty
252 lines
9.6 KiB
Smarty
{{- /*
|
|
Returns an image-puller daemonset. Two daemonsets will be created like this.
|
|
- hook-image-puller: for pre helm upgrade image pulling (lives temporarily)
|
|
- continuous-image-puller: for newly added nodes image pulling
|
|
*/}}
|
|
{{- define "jupyterhub.imagePuller.daemonset" -}}
|
|
apiVersion: apps/v1
|
|
kind: DaemonSet
|
|
metadata:
|
|
{{- if .hook }}
|
|
name: {{ include "jupyterhub.hook-image-puller.fullname" . }}
|
|
{{- else }}
|
|
name: {{ include "jupyterhub.continuous-image-puller.fullname" . }}
|
|
{{- end }}
|
|
labels:
|
|
{{- include "jupyterhub.labels" . | nindent 4 }}
|
|
{{- if .hook }}
|
|
hub.jupyter.org/deletable: "true"
|
|
{{- end }}
|
|
{{- if .hook }}
|
|
annotations:
|
|
{{- /*
|
|
Allows the daemonset to be deleted when the image-awaiter job is completed.
|
|
*/}}
|
|
"helm.sh/hook": pre-install,pre-upgrade
|
|
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
|
|
"helm.sh/hook-weight": "-10"
|
|
{{- end }}
|
|
spec:
|
|
selector:
|
|
matchLabels:
|
|
{{- include "jupyterhub.matchLabels" . | nindent 6 }}
|
|
updateStrategy:
|
|
type: RollingUpdate
|
|
rollingUpdate:
|
|
maxUnavailable: 100%
|
|
{{- if typeIs "int" .Values.prePuller.revisionHistoryLimit }}
|
|
revisionHistoryLimit: {{ .Values.prePuller.revisionHistoryLimit }}
|
|
{{- end }}
|
|
template:
|
|
metadata:
|
|
labels:
|
|
{{- include "jupyterhub.matchLabels" . | nindent 8 }}
|
|
{{- with .Values.prePuller.annotations }}
|
|
annotations:
|
|
{{- . | toYaml | nindent 8 }}
|
|
{{- end }}
|
|
spec:
|
|
{{- /*
|
|
image-puller pods are made evictable to save on the k8s pods
|
|
per node limit all k8s clusters have and have a higher priority
|
|
than user-placeholder pods that could block an entire node.
|
|
*/}}
|
|
{{- if .Values.scheduling.podPriority.enabled }}
|
|
priorityClassName: {{ include "jupyterhub.image-puller-priority.fullname" . }}
|
|
{{- end }}
|
|
{{- with .Values.singleuser.nodeSelector }}
|
|
nodeSelector:
|
|
{{- . | toYaml | nindent 8 }}
|
|
{{- end }}
|
|
{{- with concat .Values.scheduling.userPods.tolerations .Values.singleuser.extraTolerations .Values.prePuller.extraTolerations }}
|
|
tolerations:
|
|
{{- . | toYaml | nindent 8 }}
|
|
{{- end }}
|
|
{{- if include "jupyterhub.userNodeAffinityRequired" . }}
|
|
affinity:
|
|
nodeAffinity:
|
|
requiredDuringSchedulingIgnoredDuringExecution:
|
|
nodeSelectorTerms:
|
|
{{- include "jupyterhub.userNodeAffinityRequired" . | nindent 14 }}
|
|
{{- end }}
|
|
terminationGracePeriodSeconds: 0
|
|
automountServiceAccountToken: false
|
|
{{- with include "jupyterhub.imagePullSecrets" (dict "root" . "image" .Values.singleuser.image) }}
|
|
imagePullSecrets: {{ . }}
|
|
{{- end }}
|
|
initContainers:
|
|
{{- /* --- Conditionally pull an image all user pods will use in an initContainer --- */}}
|
|
{{- $blockWithIptables := hasKey .Values.singleuser.cloudMetadata "enabled" | ternary (not .Values.singleuser.cloudMetadata.enabled) .Values.singleuser.cloudMetadata.blockWithIptables }}
|
|
{{- if $blockWithIptables }}
|
|
- name: image-pull-metadata-block
|
|
image: {{ .Values.singleuser.networkTools.image.name }}:{{ .Values.singleuser.networkTools.image.tag }}
|
|
{{- with .Values.singleuser.networkTools.image.pullPolicy }}
|
|
imagePullPolicy: {{ . }}
|
|
{{- end }}
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- echo "Pulling complete"
|
|
{{- with .Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with .Values.prePuller.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
{{- /* --- Pull default image --- */}}
|
|
- name: image-pull-singleuser
|
|
image: {{ .Values.singleuser.image.name }}:{{ .Values.singleuser.image.tag }}
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- echo "Pulling complete"
|
|
{{- with .Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with .Values.prePuller.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
|
|
{{- /* --- Pull extra containers' images --- */}}
|
|
{{- range $k, $container := concat .Values.singleuser.initContainers .Values.singleuser.extraContainers }}
|
|
- name: image-pull-singleuser-init-and-extra-containers-{{ $k }}
|
|
image: {{ $container.image }}
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- echo "Pulling complete"
|
|
{{- with $.Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with $.Values.prePuller.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
{{- /* --- Conditionally pull profileList images --- */}}
|
|
{{- if .Values.prePuller.pullProfileListImages }}
|
|
{{- range $k, $container := .Values.singleuser.profileList }}
|
|
{{- if $container.kubespawner_override }}
|
|
{{- if $container.kubespawner_override.image }}
|
|
- name: image-pull-singleuser-profilelist-{{ $k }}
|
|
image: {{ $container.kubespawner_override.image }}
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- echo "Pulling complete"
|
|
{{- with $.Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with $.Values.prePuller.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
{{- /* --- Pull extra images --- */}}
|
|
{{- range $k, $v := .Values.prePuller.extraImages }}
|
|
- name: image-pull-{{ $k }}
|
|
image: {{ $v.name }}:{{ $v.tag }}
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- echo "Pulling complete"
|
|
{{- with $.Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with $.Values.prePuller.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
containers:
|
|
- name: pause
|
|
image: {{ .Values.prePuller.pause.image.name }}:{{ .Values.prePuller.pause.image.tag }}
|
|
{{- with .Values.prePuller.resources }}
|
|
resources:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- with .Values.prePuller.pause.containerSecurityContext }}
|
|
securityContext:
|
|
{{- . | toYaml | nindent 12 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
|
|
{{- /*
|
|
Returns a rendered k8s DaemonSet resource: continuous-image-puller
|
|
*/}}
|
|
{{- define "jupyterhub.imagePuller.daemonset.continuous" -}}
|
|
{{- $_ := merge (dict "hook" false "componentPrefix" "continuous-") . }}
|
|
{{- include "jupyterhub.imagePuller.daemonset" $_ }}
|
|
{{- end }}
|
|
|
|
|
|
{{- /*
|
|
Returns a rendered k8s DaemonSet resource: hook-image-puller
|
|
*/}}
|
|
{{- define "jupyterhub.imagePuller.daemonset.hook" -}}
|
|
{{- $_ := merge (dict "hook" true "componentPrefix" "hook-") . }}
|
|
{{- include "jupyterhub.imagePuller.daemonset" $_ }}
|
|
{{- end }}
|
|
|
|
|
|
{{- /*
|
|
Returns a checksum of the rendered k8s DaemonSet resource: hook-image-puller
|
|
|
|
This checksum is used when prePuller.hook.pullOnlyOnChanges=true to decide if
|
|
it is worth creating the hook-image-puller associated resources.
|
|
*/}}
|
|
{{- define "jupyterhub.imagePuller.daemonset.hook.checksum" -}}
|
|
{{- /*
|
|
We pin componentLabel and Chart.Version as doing so can pin labels
|
|
of no importance if they would change. Chart.Name is also pinned as
|
|
a harmless technical workaround when we compute the checksum.
|
|
*/}}
|
|
{{- $_ := merge (dict "componentLabel" "pinned" "Chart" (dict "Name" "jupyterhub" "Version" "pinned")) . -}}
|
|
{{- $yaml := include "jupyterhub.imagePuller.daemonset.hook" $_ }}
|
|
{{- $yaml | sha256sum }}
|
|
{{- end }}
|
|
|
|
|
|
{{- /*
|
|
Returns a truthy string or a blank string depending on if the
|
|
hook-image-puller should be installed. The truthy strings are comments
|
|
that summarize the state that led to returning a truthy string.
|
|
|
|
- prePuller.hook.enabled must be true
|
|
- if prePuller.hook.pullOnlyOnChanges is true, the checksum of the
|
|
hook-image-puller daemonset must differ since last upgrade
|
|
*/}}
|
|
{{- define "jupyterhub.imagePuller.daemonset.hook.install" -}}
|
|
{{- if .Values.prePuller.hook.enabled }}
|
|
{{- if .Values.prePuller.hook.pullOnlyOnChanges }}
|
|
{{- $new_checksum := include "jupyterhub.imagePuller.daemonset.hook.checksum" . }}
|
|
{{- $k8s_state := lookup "v1" "ConfigMap" .Release.Namespace (include "jupyterhub.hub.fullname" .) | default (dict "data" (dict)) }}
|
|
{{- $old_checksum := index $k8s_state.data "checksum_hook-image-puller" | default "" }}
|
|
{{- if ne $new_checksum $old_checksum -}}
|
|
# prePuller.hook.enabled={{ .Values.prePuller.hook.enabled }}
|
|
# prePuller.hook.pullOnlyOnChanges={{ .Values.prePuller.hook.pullOnlyOnChanges }}
|
|
# post-upgrade checksum != pre-upgrade checksum (of the hook-image-puller DaemonSet)
|
|
# "{{ $new_checksum }}" != "{{ $old_checksum}}"
|
|
{{- end }}
|
|
{{- else -}}
|
|
# prePuller.hook.enabled={{ .Values.prePuller.hook.enabled }}
|
|
# prePuller.hook.pullOnlyOnChanges={{ .Values.prePuller.hook.pullOnlyOnChanges }}
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- end }}
|