mysql implementation with helm3

mysql-helm3/.gitignore

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+values.yaml
+.helm
+.charts

mysql-helm3/README.md

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+# MySQL Hub component
+
+PostgreSQL Hub Component, installs a [t3n-helm-charts/mysql](https://artifacthub.io/packages/helm/t3n/mysql) helm chart
+
+## TODO
+
+- [ ] Add GUI component
+- [ ] Backup functionality

mysql-helm3/hub-component.yaml

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+---
+version: 1
+kind: component
+meta:
+  name: mysql
+  title: MySQL
+  brief: Relational Database
+  description: >
+    MySQL is a popular, well known open source relational database
+  category: Storage
+  version: '5.7.30'
+  maturity: alpha
+  license: GNU
+  source:
+      dir: ../../components/mysql
+
+requires:
+  - kubernetes
+  - helm
+  # - tiller
+
+provides:
+  - mysql
+  - database
+  - sql
+
+parameters:
+- name: hub.componentName
+- name: dns.domain
+  env: DOMAIN_NAME
+- name: component.mysql
+  empty: allow
+  parameters:
+  - name: name
+    value: mysql
+    env: COMPONENT_NAME
+  # - name: host
+  - name: namespace
+    value: mysql
+    env: NAMESPACE
+  - name: port
+    value: 3306
+  - name: user
+    env: DB_USER
+  - name: password
+    env: DB_PASSWORD
+  - name: database
+    env: DB_NAME
+  - name: rootPassword
+    env: ROOT_PASSWORD
+  - name: image.name
+    value: mysql
+  - name: image.tag
+    value: 5.7.30
+  - name: chart.version
+    value: 1.6.6
+    env: CHART_VERSION
+  - name: volumeSize
+    value: 8Gi
+  - name: storageClass
+    value: default
+  - name: helm
+    parameters:
+    - name: repo
+      value: https://storage.googleapis.com/t3n-helm-charts
+      env: HELM_REPO
+    - name: chart
+      value: mysql
+      env: HELM_CHART
+    - name: version
+      value: 0.1.0
+      env: HELM_CHART_VERSION
+
+outputs:
+- name: component.mysql.host
+  value: ${component.mysql.name}.${component.mysql.namespace}.svc.cluster.local
+- name: component.mysql.port
+- name: component.mysql.database
+- name: component.mysql.user
+- name: component.mysql.password
+  kind: secret
+- name: component.mysql.rootPassword
+  kind: secret
+
+templates:
+  files:
+    - "*.template"
+
+lifecycle:
+  verbs:
+  - deploy
+  - undeploy

mysql-helm3/pre-deploy

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+#!/bin/sh -xe
+
+HELM_OPTS=""
+
+if test -n "$DB_NAME"
+then
+    HELM_OPTS="$HELM_OPTS --set mysqlDatabase=$DB_NAME"
+fi
+
+if test -n "$DB_USER"
+then
+    HELM_OPTS="$HELM_OPTS --set mysqlUser=$DB_USER"
+fi
+
+if test -n "$DB_PASSWORD"
+then
+    HELM_OPTS="$HELM_OPTS --set mysqlPassword=$DB_PASSWORD"
+else
+    HELM_OPTS="$HELM_OPTS --set mysqlAllowEmptyPassword=true"
+fi
+
+
+if test -n "$ROOT_PASSWORD"
+then
+    HELM_OPTS="$HELM_OPTS --set mysqlRootPassword=$ROOT_PASSWORD"
+else
+    HELM_OPTS="$HELM_OPTS --set allowEmptyRootPassword=true"
+fi
+
+if $kubectl get pvc "$COMPONENT_NAME" >/dev/null 2>&1
+then
+    HELM_OPTS="$HELM_OPTS --set persistence.existingClaim=$COMPONENT_NAME"
+fi
+
+
+if [ -n "$HELM_OPTS" ]
+then
+    echo export HELM_OPTS=\"$HELM_OPTS\"
+fi
+
+# TODO: how should we quote values
+# quoting helm flags as
+# "$HELM_OPTS --set 'mysqlPassword=$DB_PASSWORD'"
+# leads to escaped quotes in the result command e.g
+#
+# + helm --kube-context=busy-odilee-553.bubble.superhub.io --namespace=kubeflow-data upgrade mysql .charts/mysql --install --create-namespace --debug --wait --version 0.1.0 --values values.yaml \
+# --set ''\''mysqlUser=mysql''\'' --set ''\''mysqlPassword=somepass'\''' --set ''\''mysqlRootPassword=somepass''\'' --set ''\''persistence.existingClaim=mysql''\''
+

mysql-helm3/values.yaml.template

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+image: "${component.mysql.image.name}"
+imageTag: "${component.mysql.image.tag}"
+
+persistence:
+  enabled: true
+  size: ${component.mysql.volumeSize}
+  storageClass: "${component.mysql.storageClass}"
+
+serviceAccount:
+  create: true
+  name: ${hub.componentName}

mysql/README.md

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 # MySQL Hub component
 
-PostgreSQL Hub Component, installs a [stable/mysqll](https://github.com/helm/charts/tree/master/stable/mysql) helm chart
+PostgreSQL Hub Component, installs a [stable/mysql](https://github.com/helm/charts/tree/master/stable/mysql) helm chart
 
 ## TODO