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EamonZhangEamonZhang
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feat(drycc-addons): add mysql cluster
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‎addons/index.yaml‎

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- name: mariadb
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description: "MariaDB Server is one of the most popular open source relational databases. It’s made by the original developers of MySQL and guaranteed to stay open source. "
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version: 1.1.0
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mysql-cluster:
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- name: mysql-cluster
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description: " The world's most popular open source database cluster."
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version: 8.0
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- name: mysql-cluster
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description: " The world's most popular open source database cluster."
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version: 5.7
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minio:
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- name: minio
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description: "MinIO offers high-performance, S3 compatible object storage."

‎addons/mysql-cluster-5.7/chart/mysql-cluster/.helmignore‎

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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj

‎addons/mysql-cluster-5.7/chart/mysql-cluster/Chart.yaml‎

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annotations:
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category: Database
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apiVersion: v2
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appVersion: 8.0.30
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dependencies:
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- name: common
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repository: https://charts.bitnami.com/bitnami
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tags:
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- bitnami-common
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version: 2.x.x
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description: MySQL is a fast, reliable, scalable, and easy to use open source relational database system. Designed to handle mission-critical, heavy-load production applications.
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engine: gotpl
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home: https://github.com/bitnami/charts/tree/master/bitnami/mysql
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icon: https://bitnami.com/assets/stacks/mysql/img/mysql-stack-220x234.png
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keywords:
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- mysql
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- database
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- sql
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- cluster
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- high availability
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maintainers:
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- name: Bitnami
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url: https://github.com/bitnami/charts
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name: mysql
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sources:
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- https://github.com/bitnami/containers/tree/main/bitnami/mysql
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- https://mysql.com
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version: 9.3.5

‎addons/mysql-cluster-5.7/chart/mysql-cluster/README.md‎

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‎addons/mysql-cluster-5.7/chart/mysql-cluster/handler.md‎

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echo Primary: my-release-mysql-primary.default.svc.cluster.local:3306
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echo Secondary: my-release-mysql-secondary.default.svc.cluster.local:3306
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Tip:
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Watch the deployment status using the command: kubectl get pods -w --namespace default
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Services:
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echo Primary: my-release-mysql-primary.default.svc.cluster.local:3306
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echo Secondary: my-release-mysql-secondary.default.svc.cluster.local:3306
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Execute the following to get the administrator credentials:
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echo Username: root
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MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace default my-release-mysql -o jsonpath="{.data.mysql-root-password}" | base64 -d)
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To connect to your database:
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1. Run a pod that you can use as a client:
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kubectl run my-release-mysql-client --rm --tty -i --restart='Always' --image docker.io/bitnami/mysql:8.0.30-debian-11-r27 --namespace default --env MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD --command -- bash
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2. To connect to primary service (read/write):
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mysql -h my-release-mysql-primary.default.svc.cluster.local -uroot -p"$MYSQL_ROOT_PASSWORD"
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3. To connect to secondary service (read-only):
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mysql -h my-release-mysql-secondary.default.svc.cluster.local -uroot -p"$MYSQL_ROOT_PASSWORD"
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mysq -uroot -p"$MYSQL_ROOT_PASSWORD"

‎addons/mysql-cluster-5.7/chart/mysql-cluster/int-mysql.sh‎

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int-mysql.sh: |
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#!/bin/bash
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set -ex
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# Generate mysql server-id from pod ordinal index.
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[[ $`hostname` =~ -([0-9]+)$ ]] || exit 1
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ordinal=${BASH_REMATCH[1]}
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echo $ordinal
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mgr_host=`hostname`
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pre_mgr_host=${mgr_host%-*}
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echo [mysqld] > /opt/bitnami/mysql/conf/bitnami/server-id.cnf
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# Add an offset to avoid reserved server-id=0 value.
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echo server-id=$((100 + $ordinal)) >> /opt/bitnami/mysql/conf/bitnami/server-id.cnf
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# Copy appropriate conf.d files from config-map to emptyDir.
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echo loose-group_replication_local_address=$mgr_host:24901 >> /opt/bitnami/mysql/conf/bitnami/server-id.cnf
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echo loose-group_replication_group_seeds= "$pre_mgr_host-0.$pre_mgr_host-1:24901,$pre_mgr_host-2.mysql:24901" >> /opt/bitnami/mysql/conf/bitnami//server-id.cnf
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‎addons/mysql-cluster-5.7/chart/mysql-cluster/mysql.conf‎

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[mysqld]
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# server
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default_authentication_plugin=mysql_native_password
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skip-name-resolve
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explicit_defaults_for_timestamp
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basedir=/opt/bitnami/mysql
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plugin_dir=/opt/bitnami/mysql/lib/plugin
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port=3306
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socket=/opt/bitnami/mysql/tmp/mysql.sock
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datadir=/bitnami/mysql/data
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tmpdir=/opt/bitnami/mysql/tmp
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max_allowed_packet=16M
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bind-address=*
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pid-file=/opt/bitnami/mysql/tmp/mysqld.pid
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log-error=/opt/bitnami/mysql/logs/mysqld.log
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character-set-server=UTF8
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collation-server=utf8_general_ci
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slow_query_log=0
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slow_query_log_file=/opt/bitnami/mysql/logs/mysqld.log
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long_query_time=10.0
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log_timestamps=system
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disabled_storage_engines="MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"
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sql_require_primary_key=ON
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# Replication
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log_bin=mysql-bin
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binlog_format=ROW
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gtid_mode=ON
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enforce_gtid_consistency=ON
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log_slave_updates=ON
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master_info_repository=TABLE
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relay_log_info_repository=TABLE
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super_read_only=ON
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binlog_transaction_dependency_tarcking=WRITEST
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transaction_write_set_extraction=XXHASH64
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# Multi-threaded Replication
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slave_parallel_type=LOGICAL_CLOCK
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slave_preserve_commit_order=ON
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slave_parallel_workers=4
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# Group Replication Settings
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plugin_load_add="group_replication.so"
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loose-group_replication_recovery_get_public_key=ON
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loose-group_replication_recovery_use_ssl=on
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loose-group_replication_group_name="80d51c50-3c11-11ee-bd0f-080027fc0450" #TODO
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loose-group_replication_bootstrap_group=OFF
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loose-group_replication_start_on_boot=OFF
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[client]
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port=3306
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socket=/opt/bitnami/mysql/tmp/mysql.sock
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default-character-set=UTF8
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plugin_dir=/opt/bitnami/mysql/lib/plugin
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[manager]
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port=3306
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socket=/opt/bitnami/mysql/tmp/mysql.sock
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pid-file=/opt/bitnami/mysql/tmp/mysqld.pid
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!includedir /opt/bitnami/mysql

‎addons/mysql-cluster-5.7/chart/mysql-cluster/templates/NOTES.txt‎

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CHART NAME: {{ .Chart.Name }}
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CHART VERSION: {{ .Chart.Version }}
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APP VERSION: {{ .Chart.AppVersion }}
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** Please be patient while the chart is being deployed **
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{{- if .Values.diagnosticMode.enabled }}
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The chart has been deployed in diagnostic mode. All probes have been disabled and the command has been overwritten with:
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command: {{- include "common.tplvalues.render" (dict "value" .Values.diagnosticMode.command "context" $) | nindent 4 }}
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args: {{- include "common.tplvalues.render" (dict "value" .Values.diagnosticMode.args "context" $) | nindent 4 }}
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Get the list of pods by executing:
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kubectl get pods --namespace {{ include "common.names.namespace" . }} -l app.kubernetes.io/instance={{ .Release.Name }}
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Access the pod you want to debug by executing
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kubectl exec --namespace {{ include "common.names.namespace" . }} -ti <NAME OF THE POD> -- bash
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In order to replicate the container startup scripts execute this command:
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/opt/bitnami/scripts/mysql/entrypoint.sh /opt/bitnami/scripts/mysql/run.sh
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{{- else }}
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Tip:
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Watch the deployment status using the command: kubectl get pods -w --namespace {{ include "common.names.namespace" . }}
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Services:
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echo Primary: {{ include "mysql.primary.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}:{{ .Values.primary.service.ports.mysql }}
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{{- if eq .Values.architecture "replication" }}
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echo Secondary: {{ include "mysql.secondary.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}:{{ .Values.secondary.service.ports.mysql }}
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{{- end }}
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Execute the following to get the administrator credentials:
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echo Username: root
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MYSQL_ROOT_PASSWORD=$(kubectl get secret --namespace {{ include "common.names.namespace" . }} {{ template "mysql.secretName" . }} -o jsonpath="{.data.mysql-root-password}" | base64 -d)
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To connect to your database:
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1. Run a pod that you can use as a client:
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kubectl run {{ include "common.names.fullname" . }}-client --rm --tty -i --restart='Never' --image {{ template "mysql.image" . }} --namespace {{ include "common.names.namespace" . }} --env MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD --command -- bash
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2. To connect to primary service (read/write):
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mysql -h {{ include "mysql.primary.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }} -uroot -p"$MYSQL_ROOT_PASSWORD"
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{{- if eq .Values.architecture "replication" }}
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3. To connect to secondary service (read-only):
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mysql -h {{ include "mysql.secondary.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }} -uroot -p"$MYSQL_ROOT_PASSWORD"
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{{- end }}
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{{ if and (.Values.networkPolicy.enabled) (not .Values.networkPolicy.allowExternal) }}
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Note: Since NetworkPolicy is enabled, only pods with label {{ template "common.names.fullname" . }}-client=true" will be able to connect to MySQL.
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{{- end }}
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{{- if .Values.metrics.enabled }}
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To access the MySQL Prometheus metrics from outside the cluster execute the following commands:
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kubectl port-forward --namespace {{ include "common.names.namespace" . }} svc/{{ printf "%s-metrics" (include "common.names.fullname" .) }} {{ .Values.metrics.service.port }}:{{ .Values.metrics.service.port }} &
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curl http://127.0.0.1:{{ .Values.metrics.service.port }}/metrics
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{{- end }}
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{{ include "mysql.validateValues" . }}
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{{ include "mysql.checkRollingTags" . }}
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{{- end }}

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