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webserver-deployment.yaml
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webserver-deployment.yaml
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{{/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/}}
################################
## Airflow Webserver Deployment
#################################
{{- $nodeSelector := or .Values.webserver.nodeSelector .Values.nodeSelector }}
{{- $affinity := or .Values.webserver.affinity .Values.affinity }}
{{- $tolerations := or .Values.webserver.tolerations .Values.tolerations }}
{{- $topologySpreadConstraints := or .Values.webserver.topologySpreadConstraints .Values.topologySpreadConstraints }}
{{- $revisionHistoryLimit := or .Values.webserver.revisionHistoryLimit .Values.revisionHistoryLimit }}
{{- $securityContext := include "airflowPodSecurityContext" (list . .Values.webserver) }}
{{- $containerSecurityContext := include "containerSecurityContext" (list . .Values.webserver) }}
{{- $containerSecurityContextWaitForMigrations := include "containerSecurityContext" (list . .Values.webserver.waitForMigrations) }}
{{- $containerLifecycleHooks := or .Values.webserver.containerLifecycleHooks .Values.containerLifecycleHooks }}
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "airflow.fullname" . }}-webserver
labels:
tier: airflow
component: webserver
release: {{ .Release.Name }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
heritage: {{ .Release.Service }}
{{- with .Values.labels }}
{{- toYaml . | nindent 4 }}
{{- end }}
{{- if .Values.webserver.annotations }}
annotations: {{- toYaml .Values.webserver.annotations | nindent 4 }}
{{- end }}
spec:
replicas: {{ .Values.webserver.replicas }}
{{- if $revisionHistoryLimit }}
revisionHistoryLimit: {{ $revisionHistoryLimit }}
{{- end }}
strategy:
{{- if .Values.webserver.strategy }}
{{- toYaml .Values.webserver.strategy | nindent 4 }}
{{- else }}
{{- if semverCompare ">=2.0.0" .Values.airflowVersion }}
# Here we define the rolling update strategy
# - maxSurge define how many pod we can add at a time
# - maxUnavailable define how many pod can be unavailable
# during the rolling update
# Setting maxUnavailable to 0 would make sure we have the appropriate
# capacity during the rolling update.
# You can also use percentage based value instead of integer.
type: RollingUpdate
rollingUpdate:
maxSurge: 1
maxUnavailable: 0
{{- else }}
type: Recreate
{{- end }}
{{- end }}
selector:
matchLabels:
tier: airflow
component: webserver
release: {{ .Release.Name }}
template:
metadata:
labels:
tier: airflow
component: webserver
release: {{ .Release.Name }}
{{- if or (.Values.labels) (.Values.webserver.labels) }}
{{- mustMerge .Values.webserver.labels .Values.labels | toYaml | nindent 8 }}
{{- end }}
annotations:
checksum/metadata-secret: {{ include (print $.Template.BasePath "/secrets/metadata-connection-secret.yaml") . | sha256sum }}
checksum/pgbouncer-config-secret: {{ include (print $.Template.BasePath "/secrets/pgbouncer-config-secret.yaml") . | sha256sum }}
checksum/webserver-secret-key: {{ include (print $.Template.BasePath "/secrets/webserver-secret-key-secret.yaml") . | sha256sum }}
checksum/airflow-config: {{ include (print $.Template.BasePath "/configmaps/configmap.yaml") . | sha256sum }}
checksum/webserver-config: {{ include (print $.Template.BasePath "/configmaps/webserver-configmap.yaml") . | sha256sum }}
checksum/extra-configmaps: {{ include (print $.Template.BasePath "/configmaps/extra-configmaps.yaml") . | sha256sum }}
checksum/extra-secrets: {{ include (print $.Template.BasePath "/secrets/extra-secrets.yaml") . | sha256sum }}
{{- if .Values.airflowPodAnnotations }}
{{- toYaml .Values.airflowPodAnnotations | nindent 8 }}
{{- end }}
{{- if .Values.webserver.podAnnotations }}
{{- toYaml .Values.webserver.podAnnotations | nindent 8 }}
{{- end }}
spec:
{{- if .Values.webserver.hostAliases }}
hostAliases: {{- toYaml .Values.webserver.hostAliases | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "webserver.serviceAccountName" . }}
{{- if .Values.webserver.priorityClassName }}
priorityClassName: {{ .Values.webserver.priorityClassName }}
{{- end }}
{{- if .Values.schedulerName }}
schedulerName: {{ .Values.schedulerName }}
{{- end }}
nodeSelector: {{- toYaml $nodeSelector | nindent 8 }}
affinity:
{{- if $affinity }}
{{- toYaml $affinity | nindent 8 }}
{{- else }}
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- podAffinityTerm:
labelSelector:
matchLabels:
component: webserver
topologyKey: kubernetes.io/hostname
weight: 100
{{- end }}
tolerations: {{- toYaml $tolerations | nindent 8 }}
topologySpreadConstraints: {{- toYaml $topologySpreadConstraints | nindent 8 }}
restartPolicy: Always
securityContext: {{ $securityContext | nindent 8 }}
{{- if or .Values.registry.secretName .Values.registry.connection }}
imagePullSecrets:
- name: {{ template "registry_secret" . }}
{{- end }}
initContainers:
{{- if .Values.webserver.waitForMigrations.enabled }}
- name: wait-for-airflow-migrations
resources: {{- toYaml .Values.webserver.resources | nindent 12 }}
image: {{ template "airflow_image_for_migrations" . }}
imagePullPolicy: {{ .Values.images.airflow.pullPolicy }}
securityContext: {{ $containerSecurityContextWaitForMigrations | nindent 12 }}
volumeMounts:
{{- include "airflow_config_mount" . | nindent 12 }}
{{- if .Values.volumeMounts }}
{{- toYaml .Values.volumeMounts | nindent 12 }}
{{- end }}
{{- if .Values.webserver.extraVolumeMounts }}
{{- tpl (toYaml .Values.webserver.extraVolumeMounts) . | nindent 12 }}
{{- end }}
{{- if or .Values.webserver.webserverConfig .Values.webserver.webserverConfigConfigMapName }}
{{- include "airflow_webserver_config_mount" . | nindent 12 }}
{{- end }}
args: {{- include "wait-for-migrations-command" . | indent 10 }}
envFrom: {{- include "custom_airflow_environment_from" . | default "\n []" | indent 10 }}
env:
{{- include "custom_airflow_environment" . | indent 10 }}
{{- include "standard_airflow_environment" . | indent 10 }}
{{- if .Values.webserver.waitForMigrations.env }}
{{- tpl (toYaml .Values.webserver.waitForMigrations.env) $ | nindent 12 }}
{{- end }}
{{- end }}
{{- if and (.Values.dags.gitSync.enabled) (not .Values.dags.persistence.enabled) (semverCompare "<2.0.0" .Values.airflowVersion) }}
{{- include "git_sync_container" (dict "Values" .Values "is_init" "true" "Template" .Template) | nindent 8 }}
{{- end }}
{{- if .Values.webserver.extraInitContainers }}
{{- toYaml .Values.webserver.extraInitContainers | nindent 8 }}
{{- end }}
containers:
- name: webserver
image: {{ template "airflow_image" . }}
imagePullPolicy: {{ .Values.images.airflow.pullPolicy }}
securityContext: {{ $containerSecurityContext | nindent 12 }}
{{- if $containerLifecycleHooks }}
lifecycle: {{- tpl (toYaml $containerLifecycleHooks) . | nindent 12 }}
{{- end }}
{{- if .Values.webserver.command }}
command: {{ tpl (toYaml .Values.webserver.command) . | nindent 12 }}
{{- end }}
{{- if .Values.webserver.args }}
args: {{- tpl (toYaml .Values.webserver.args) . | nindent 12 }}
{{- end }}
resources: {{- toYaml .Values.webserver.resources | nindent 12 }}
volumeMounts:
{{- if semverCompare ">=1.10.12" .Values.airflowVersion }}
- name: config
mountPath: {{ include "airflow_pod_template_file" . }}/pod_template_file.yaml
subPath: pod_template_file.yaml
readOnly: true
{{- end }}
{{- include "airflow_config_mount" . | nindent 12 }}
{{- if or .Values.webserver.webserverConfig .Values.webserver.webserverConfigConfigMapName }}
{{- include "airflow_webserver_config_mount" . | nindent 12 }}
{{- end }}
{{- if and (semverCompare "<2.0.0" .Values.airflowVersion) (or .Values.dags.gitSync.enabled .Values.dags.persistence.enabled) }}
{{- include "airflow_dags_mount" . | nindent 12 }}
{{- end }}
{{- if .Values.logs.persistence.enabled }}
- name: logs
mountPath: {{ template "airflow_logs" . }}
{{- end }}
{{- if .Values.volumeMounts }}
{{- toYaml .Values.volumeMounts | nindent 12 }}
{{- end }}
{{- if .Values.webserver.extraVolumeMounts }}
{{- tpl (toYaml .Values.webserver.extraVolumeMounts) . | nindent 12 }}
{{- end }}
ports:
- name: airflow-ui
containerPort: {{ .Values.ports.airflowUI }}
livenessProbe:
httpGet:
path: {{ if .Values.config.webserver.base_url }}{{- with urlParse (tpl .Values.config.webserver.base_url .) }}{{ .path }}{{ end }}{{ end }}/health
port: {{ .Values.ports.airflowUI }}
{{- if .Values.config.webserver.base_url}}
httpHeaders:
- name: Host
value: {{ regexReplaceAll ":\\d+$" (urlParse (tpl .Values.config.webserver.base_url .)).host "" }}
{{- end }}
scheme: {{ .Values.webserver.livenessProbe.scheme | default "http" }}
initialDelaySeconds: {{ .Values.webserver.livenessProbe.initialDelaySeconds }}
timeoutSeconds: {{ .Values.webserver.livenessProbe.timeoutSeconds }}
failureThreshold: {{ .Values.webserver.livenessProbe.failureThreshold }}
periodSeconds: {{ .Values.webserver.livenessProbe.periodSeconds }}
readinessProbe:
httpGet:
path: {{ if .Values.config.webserver.base_url }}{{- with urlParse (tpl .Values.config.webserver.base_url .) }}{{ .path }}{{ end }}{{ end }}/health
port: {{ .Values.ports.airflowUI }}
{{- if .Values.config.webserver.base_url }}
httpHeaders:
- name: Host
value: {{ regexReplaceAll ":\\d+$" (urlParse (tpl .Values.config.webserver.base_url .)).host "" }}
{{- end }}
scheme: {{ .Values.webserver.readinessProbe.scheme | default "http" }}
initialDelaySeconds: {{ .Values.webserver.readinessProbe.initialDelaySeconds }}
timeoutSeconds: {{ .Values.webserver.readinessProbe.timeoutSeconds }}
failureThreshold: {{ .Values.webserver.readinessProbe.failureThreshold }}
periodSeconds: {{ .Values.webserver.readinessProbe.periodSeconds }}
startupProbe:
httpGet:
path: {{ if .Values.config.webserver.base_url }}{{- with urlParse (tpl .Values.config.webserver.base_url .) }}{{ .path }}{{ end }}{{ end }}/health
port: {{ .Values.ports.airflowUI }}
{{- if .Values.config.webserver.base_url}}
httpHeaders:
- name: Host
value: {{ regexReplaceAll ":\\d+$" (urlParse (tpl .Values.config.webserver.base_url .)).host "" }}
{{- end }}
scheme: {{ .Values.webserver.startupProbe.scheme | default "http" }}
timeoutSeconds: {{ .Values.webserver.startupProbe.timeoutSeconds }}
failureThreshold: {{ .Values.webserver.startupProbe.failureThreshold }}
periodSeconds: {{ .Values.webserver.startupProbe.periodSeconds }}
envFrom: {{- include "custom_airflow_environment_from" . | default "\n []" | indent 10 }}
env:
{{- include "custom_airflow_environment" . | indent 10 }}
{{- include "standard_airflow_environment" . | indent 10 }}
{{- include "container_extra_envs" (list . .Values.webserver.env) | indent 10 }}
{{- if and (.Values.dags.gitSync.enabled) (not .Values.dags.persistence.enabled) (semverCompare "<2.0.0" .Values.airflowVersion) }}
{{- include "git_sync_container" . | nindent 8 }}
{{- end }}
{{- if .Values.webserver.extraContainers }}
{{- toYaml .Values.webserver.extraContainers | nindent 8 }}
{{- end }}
volumes:
- name: config
configMap:
name: {{ template "airflow_config" . }}
{{- if or .Values.webserver.webserverConfig .Values.webserver.webserverConfigConfigMapName }}
- name: webserver-config
configMap:
name: {{ template "airflow_webserver_config_configmap_name" . }}
{{- end }}
{{- if (semverCompare "<2.0.0" .Values.airflowVersion) }}
{{- if .Values.dags.persistence.enabled }}
- name: dags
persistentVolumeClaim:
claimName: {{ template "airflow_dags_volume_claim" . }}
{{- else if .Values.dags.gitSync.enabled }}
- name: dags
emptyDir: {}
{{- if .Values.dags.gitSync.sshKeySecret }}
{{- include "git_sync_ssh_key_volume" . | indent 8 }}
{{- end }}
{{- end }}
{{- end }}
{{- if .Values.logs.persistence.enabled }}
- name: logs
persistentVolumeClaim:
claimName: {{ template "airflow_logs_volume_claim" . }}
{{- end }}
{{- if .Values.volumes }}
{{- toYaml .Values.volumes | nindent 8 }}
{{- end }}
{{- if .Values.webserver.extraVolumes }}
{{- tpl (toYaml .Values.webserver.extraVolumes) . | nindent 8 }}
{{- end }}