Add Helm Chart - Pinpoint MySQL

This commit is contained in:
Seongpyo Hong
2020-08-08 20:23:32 +09:00
parent 1432b00df5
commit 2691d816b4
16 changed files with 1088 additions and 0 deletions

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MySQL can be accessed via port 3306 on the following DNS name from within your cluster:
{{ template "mysql.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
{{- if .Values.existingSecret }}
If you have not already created the mysql password secret:
kubectl create secret generic {{ .Values.existingSecret }} --namespace {{ .Release.Namespace }} --from-file=./mysql-root-password --from-file=./mysql-password
{{ else }}
To get your root password run:
MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace {{ .Release.Namespace }} {{ template "mysql.fullname" . }} -o jsonpath="{.data.mysql-root-password}" | base64 --decode; echo)
{{- end }}
To connect to your database:
1. Run an Ubuntu pod that you can use as a client:
kubectl run -i --tty ubuntu --image=ubuntu:16.04 --restart=Never -- bash -il
2. Install the mysql client:
$ apt-get update && apt-get install mysql-client -y
3. Connect using the mysql cli, then provide your password:
$ mysql -h {{ template "mysql.fullname" . }} -p
To connect to your database directly from outside the K8s cluster:
{{- if contains "NodePort" .Values.service.type }}
MYSQL_HOST=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath='{.items[0].status.addresses[0].address}')
MYSQL_PORT=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "mysql.fullname" . }} -o jsonpath='{.spec.ports[0].nodePort}')
{{- else if contains "ClusterIP" .Values.service.type }}
MYSQL_HOST=127.0.0.1
MYSQL_PORT={{ .Values.service.port }}
# Execute the following command to route the connection:
kubectl port-forward svc/{{ template "mysql.fullname" . }} {{ .Values.service.port }}
{{- end }}
mysql -h ${MYSQL_HOST} -P${MYSQL_PORT} -u root -p${MYSQL_ROOT_PASSWORD}

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{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "mysql.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 "mysql.fullname" -}}
{{- if .Values.fullnameOverride -}}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- printf .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{/*
Generate chart secret name
*/}}
{{- define "mysql.secretName" -}}
{{ default (include "mysql.fullname" .) .Values.existingSecret }}
{{- end -}}
{{/*
Create the name of the service account to use
*/}}
{{- define "mysql.serviceAccountName" -}}
{{- if .Values.serviceAccount.create -}}
{{ default (include "mysql.fullname" .) .Values.serviceAccount.name }}
{{- else -}}
{{ default "default" .Values.serviceAccount.name }}
{{- end -}}
{{- end -}}

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{{- if .Values.configurationFiles }}
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ template "mysql.fullname" . }}-configuration
namespace: {{ .Release.Namespace }}
data:
{{- range $key, $val := .Values.configurationFiles }}
{{ $key }}: |-
{{ $val | indent 4}}
{{- end }}
{{- end -}}

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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ template "mysql.fullname" . }}
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
{{- with .Values.deploymentAnnotations }}
annotations:
{{ toYaml . | indent 4 }}
{{- end }}
spec:
strategy:
{{ toYaml .Values.strategy | indent 4 }}
selector:
matchLabels:
app: {{ template "mysql.fullname" . }}
release: {{ .Release.Name }}
template:
metadata:
labels:
app: {{ template "mysql.fullname" . }}
release: {{ .Release.Name }}
{{- with .Values.podLabels }}
{{ toYaml . | indent 8 }}
{{- end }}
{{- with .Values.podAnnotations }}
annotations:
{{ toYaml . | indent 8 }}
{{- end }}
spec:
{{- if .Values.schedulerName }}
schedulerName: "{{ .Values.schedulerName }}"
{{- end }}
{{- if .Values.imagePullSecrets }}
imagePullSecrets:
{{ toYaml .Values.imagePullSecrets | indent 8 }}
{{- end }}
{{- if .Values.priorityClassName }}
priorityClassName: "{{ .Values.priorityClassName }}"
{{- end }}
{{- if .Values.securityContext.enabled }}
securityContext:
fsGroup: {{ .Values.securityContext.fsGroup }}
runAsUser: {{ .Values.securityContext.runAsUser }}
{{- end }}
serviceAccountName: {{ template "mysql.serviceAccountName" . }}
initContainers:
- name: "remove-lost-found"
image: "{{ .Values.busybox.image}}:{{ .Values.busybox.tag }}"
imagePullPolicy: {{ .Values.imagePullPolicy | quote }}
resources:
{{ toYaml .Values.initContainer.resources | indent 10 }}
command: ["rm", "-fr", "/var/lib/mysql/lost+found"]
volumeMounts:
- name: data
mountPath: /var/lib/mysql
{{- if .Values.persistence.subPath }}
subPath: {{ .Values.persistence.subPath }}
{{- end }}
{{- if .Values.extraInitContainers }}
{{ tpl .Values.extraInitContainers . | indent 6 }}
{{- end }}
{{- if .Values.nodeSelector }}
nodeSelector:
{{ toYaml .Values.nodeSelector | indent 8 }}
{{- end }}
{{- if .Values.affinity }}
affinity:
{{ toYaml .Values.affinity | indent 8 }}
{{- end }}
{{- if .Values.tolerations }}
tolerations:
{{ toYaml .Values.tolerations | indent 8 }}
{{- end }}
containers:
- name: {{ template "mysql.fullname" . }}
image: "{{ .Values.image }}:{{ .Values.imageTag }}"
imagePullPolicy: {{ .Values.imagePullPolicy | quote }}
{{- with .Values.args }}
args:
{{- range . }}
- {{ . | quote }}
{{- end }}
{{- end }}
resources:
{{ toYaml .Values.resources | indent 10 }}
env:
{{- if .Values.mysqlAllowEmptyPassword }}
- name: MYSQL_ALLOW_EMPTY_PASSWORD
value: "true"
{{- end }}
{{- if not (and .Values.allowEmptyRootPassword (not .Values.mysqlRootPassword)) }}
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: {{ template "mysql.secretName" . }}
key: mysql-root-password
{{- if .Values.mysqlAllowEmptyPassword }}
optional: true
{{- end }}
{{- end }}
{{- if not (and .Values.allowEmptyRootPassword (not .Values.mysqlPassword)) }}
- name: MYSQL_PASSWORD
valueFrom:
secretKeyRef:
name: {{ template "mysql.secretName" . }}
key: mysql-password
{{- if or .Values.mysqlAllowEmptyPassword (empty .Values.mysqlUser) }}
optional: true
{{- end }}
{{- end }}
- name: MYSQL_USER
value: {{ default "" .Values.mysqlUser | quote }}
- name: MYSQL_DATABASE
value: {{ default "" .Values.mysqlDatabase | quote }}
{{- if .Values.timezone }}
- name: TZ
value: {{ .Values.timezone }}
{{- end }}
ports:
- name: mysql
containerPort: 3306
livenessProbe:
exec:
command:
{{- if .Values.mysqlAllowEmptyPassword }}
- mysqladmin
- ping
{{- else }}
- sh
- -c
- "mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}"
{{- end }}
initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
successThreshold: {{ .Values.livenessProbe.successThreshold }}
failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
readinessProbe:
exec:
command:
{{- if .Values.mysqlAllowEmptyPassword }}
- mysqladmin
- ping
{{- else }}
- sh
- -c
- "mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}"
{{- end }}
initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
successThreshold: {{ .Values.readinessProbe.successThreshold }}
failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
volumeMounts:
- name: data
mountPath: /var/lib/mysql
{{- if .Values.persistence.subPath }}
subPath: {{ .Values.persistence.subPath }}
{{- end }}
{{- if .Values.configurationFiles }}
{{- range $key, $val := .Values.configurationFiles }}
- name: configurations
mountPath: {{ $.Values.configurationFilesPath }}{{ $key }}
subPath: {{ $key }}
{{- end -}}
{{- end }}
{{- if .Values.initializationFiles }}
- name: migrations
mountPath: /docker-entrypoint-initdb.d
{{- end }}
{{- if .Values.ssl.enabled }}
- name: certificates
mountPath: /ssl
{{- end }}
{{- if .Values.extraVolumeMounts }}
{{ tpl .Values.extraVolumeMounts . | indent 8 }}
{{- end }}
{{- if .Values.metrics.enabled }}
- name: metrics
image: "{{ .Values.metrics.image }}:{{ .Values.metrics.imageTag }}"
imagePullPolicy: {{ .Values.metrics.imagePullPolicy | quote }}
{{- if .Values.mysqlAllowEmptyPassword }}
command:
- 'sh'
- '-c'
- 'DATA_SOURCE_NAME="root@(localhost:3306)/" /bin/mysqld_exporter'
{{- else }}
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: {{ template "mysql.secretName" . }}
key: mysql-root-password
command:
- 'sh'
- '-c'
- 'DATA_SOURCE_NAME="root:$MYSQL_ROOT_PASSWORD@(localhost:3306)/" /bin/mysqld_exporter'
{{- end }}
{{- range $f := .Values.metrics.flags }}
- {{ $f | quote }}
{{- end }}
ports:
- name: metrics
containerPort: 9104
livenessProbe:
httpGet:
path: /
port: metrics
initialDelaySeconds: {{ .Values.metrics.livenessProbe.initialDelaySeconds }}
timeoutSeconds: {{ .Values.metrics.livenessProbe.timeoutSeconds }}
readinessProbe:
httpGet:
path: /
port: metrics
initialDelaySeconds: {{ .Values.metrics.readinessProbe.initialDelaySeconds }}
timeoutSeconds: {{ .Values.metrics.readinessProbe.timeoutSeconds }}
resources:
{{ toYaml .Values.metrics.resources | indent 10 }}
{{- end }}
volumes:
{{- if .Values.configurationFiles }}
- name: configurations
configMap:
name: {{ template "mysql.fullname" . }}-configuration
{{- end }}
{{- if .Values.initializationFiles }}
- name: migrations
configMap:
name: {{ template "mysql.fullname" . }}-initialization
{{- end }}
{{- if .Values.ssl.enabled }}
- name: certificates
secret:
secretName: {{ .Values.ssl.secret }}
{{- end }}
- name: data
{{- if .Values.persistence.enabled }}
persistentVolumeClaim:
claimName: {{ .Values.persistence.existingClaim | default (include "mysql.fullname" .) }}
{{- else }}
emptyDir: {}
{{- end -}}
{{- if .Values.extraVolumes }}
{{ tpl .Values.extraVolumes . | indent 6 }}
{{- end }}

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{{- if .Values.initializationFiles }}
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ template "mysql.fullname" . }}-initialization
namespace: {{ .Release.Namespace }}
data:
{{- range $key, $val := .Values.initializationFiles }}
{{ $key }}: |-
{{ $val | indent 4}}
{{- end }}
{{- end -}}

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{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: {{ template "mysql.fullname" . }}
namespace: {{ .Release.Namespace }}
{{- with .Values.persistence.annotations }}
annotations:
{{ toYaml . | indent 4 }}
{{- end }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
spec:
accessModes:
- {{ .Values.persistence.accessMode | quote }}
resources:
requests:
storage: {{ .Values.persistence.size | quote }}
{{- if .Values.persistence.storageClass }}
{{- if (eq "-" .Values.persistence.storageClass) }}
storageClassName: ""
{{- else }}
storageClassName: "{{ .Values.persistence.storageClass }}"
{{- end }}
{{- end }}
{{- end }}

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{{- if not .Values.existingSecret }}
{{- if or (not .Values.allowEmptyRootPassword) (or .Values.mysqlRootPassword .Values.mysqlPassword) }}
apiVersion: v1
kind: Secret
metadata:
name: {{ template "mysql.fullname" . }}
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
type: Opaque
data:
{{ if .Values.mysqlRootPassword }}
mysql-root-password: {{ .Values.mysqlRootPassword | b64enc | quote }}
{{ else }}
{{ if not .Values.allowEmptyRootPassword }}
mysql-root-password: {{ randAlphaNum 10 | b64enc | quote }}
{{ end }}
{{ end }}
{{ if .Values.mysqlPassword }}
mysql-password: {{ .Values.mysqlPassword | b64enc | quote }}
{{ else }}
{{ if not .Values.allowEmptyRootPassword }}
mysql-password: {{ randAlphaNum 10 | b64enc | quote }}
{{ end }}
{{ end }}
{{ end }}
{{- if .Values.ssl.enabled }}
{{ if .Values.ssl.certificates }}
{{- range .Values.ssl.certificates }}
---
apiVersion: v1
kind: Secret
metadata:
name: {{ .name }}
labels:
app: {{ template "mysql.fullname" $ }}
chart: "{{ $.Chart.Name }}-{{ $.Chart.Version }}"
release: "{{ $.Release.Name }}"
heritage: "{{ $.Release.Service }}"
type: Opaque
data:
ca.pem: {{ .ca | b64enc }}
server-cert.pem: {{ .cert | b64enc }}
server-key.pem: {{ .key | b64enc }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}

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{{- if .Values.serviceAccount.create }}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ template "mysql.serviceAccountName" . }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
{{- end }}

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{{- if and .Values.metrics.enabled .Values.metrics.serviceMonitor.enabled }}
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: {{ include "mysql.fullname" . }}
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
{{- if .Values.metrics.serviceMonitor.additionalLabels }}
{{ toYaml .Values.metrics.serviceMonitor.additionalLabels | indent 4 }}
{{- end }}
spec:
endpoints:
- port: metrics
interval: 30s
namespaceSelector:
matchNames:
- {{ .Release.Namespace }}
selector:
matchLabels:
app: {{ include "mysql.fullname" . }}
release: {{ .Release.Name }}
{{- end }}

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apiVersion: v1
kind: Service
metadata:
name: {{ template "mysql.fullname" . }}
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
release: "{{ .Release.Name }}"
heritage: "{{ .Release.Service }}"
annotations:
{{- if .Values.service.annotations }}
{{ toYaml .Values.service.annotations | indent 4 }}
{{- end }}
{{- if and (.Values.metrics.enabled) (.Values.metrics.annotations) }}
{{ toYaml .Values.metrics.annotations | indent 4 }}
{{- end }}
spec:
type: {{ .Values.service.type }}
{{- if (and (eq .Values.service.type "LoadBalancer") (not (empty .Values.service.loadBalancerIP))) }}
loadBalancerIP: {{ .Values.service.loadBalancerIP }}
{{- end }}
ports:
- name: mysql
port: {{ .Values.service.port }}
targetPort: mysql
{{- if .Values.service.nodePort }}
nodePort: {{ .Values.service.nodePort }}
{{- end }}
{{- if .Values.metrics.enabled }}
- name: metrics
port: 9104
targetPort: metrics
{{- end }}
selector:
app: {{ template "mysql.fullname" . }}

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{{- if .Values.testFramework.enabled }}
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ template "mysql.fullname" . }}-test
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
heritage: "{{ .Release.Service }}"
release: "{{ .Release.Name }}"
data:
run.sh: |-
{{- if .Values.ssl.enabled | and .Values.mysqlRootPassword }}
@test "Testing SSL MySQL Connection" {
mysql --host={{ template "mysql.fullname" . }} --port={{ .Values.service.port | default "3306" }} --ssl-cert=/ssl/server-cert.pem --ssl-key=ssl/server-key.pem -u root -p{{ .Values.mysqlRootPassword }}
}
{{- else if .Values.mysqlRootPassword }}
@test "Testing MySQL Connection" {
mysql --host={{ template "mysql.fullname" . }} --port={{ .Values.service.port | default "3306" }} -u root -p{{ .Values.mysqlRootPassword }}
}
{{- end }}
{{- end }}

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{{- if .Values.testFramework.enabled }}
apiVersion: v1
kind: Pod
metadata:
name: {{ template "mysql.fullname" . }}-test
namespace: {{ .Release.Namespace }}
labels:
app: {{ template "mysql.fullname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
heritage: "{{ .Release.Service }}"
release: "{{ .Release.Name }}"
annotations:
"helm.sh/hook": test-success
spec:
initContainers:
- name: test-framework
image: "{{ .Values.testFramework.image}}:{{ .Values.testFramework.tag }}"
command:
- "bash"
- "-c"
- |
set -ex
# copy bats to tools dir
cp -R /usr/local/libexec/ /tools/bats/
volumeMounts:
- mountPath: /tools
name: tools
containers:
- name: {{ .Release.Name }}-test
image: "{{ .Values.image }}:{{ .Values.imageTag }}"
command: ["/tools/bats/bats", "-t", "/tests/run.sh"]
volumeMounts:
- mountPath: /tests
name: tests
readOnly: true
- mountPath: /tools
name: tools
{{- if .Values.ssl.enabled }}
- name: certificates
mountPath: /ssl
{{- end }}
volumes:
- name: tests
configMap:
name: {{ template "mysql.fullname" . }}-test
- name: tools
emptyDir: {}
{{- if .Values.ssl.enabled }}
- name: certificates
secret:
secretName: {{ .Values.ssl.secret }}
{{- end }}
restartPolicy: Never
{{- end }}