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Zach Price
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Initial CI/CD Setup
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‎.github/workflows/k8s.yml‎

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name: K8S Build & Test
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on:
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pull_request:
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workflow_dispatch:
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push:
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branches:
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- "main"
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tags:
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- "v*"
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permissions: {}
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jobs:
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container:
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name: Build & publish container
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runs-on: ubuntu-latest
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permissions:
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packages: write
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steps:
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- uses: actions/checkout@v4
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- uses: docker/setup-buildx-action@v3
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- uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- uses: docker/metadata-action@v5
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id: metadata
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with:
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images: ghcr.io/esgf2-us/metadata-migrate-sync
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tags: |
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type=ref,event=pr
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type=ref,event=tag
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- uses: docker/build-push-action@v4
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with:
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cache-from: type=gha
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cache-to: type=gha,mode=max
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file: Dockerfile
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push: true
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tags: ${{ steps.metadata.outputs.tags }}
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labels: ${{ steps.metadata.outputs.labels }}
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helm:
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name: Publish Helm chart
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runs-on: ubuntu-latest
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permissions:
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packages: write
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-python@v5
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- name: Install jq
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run: |
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sudo apt-get install --yes jq
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- name: Install yq
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run: |
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pip install yq
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- name: Generate SemVer
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id: semantic-version
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run: |
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CHART_VERSION=$(yq -r '.version' helm/Chart.yaml)
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LOCAL_SEGMENT=+pr-${{ github.event.pull_request.number }}
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GENERATED_VERSION=${CHART_VERSION}${LOCAL_SEGMENT}
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yq -Y -i ".version = \"$GENERATED_VERSION\"" helm/Chart.yaml
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echo "generated-semver=$GENERATED_VERSION" >> $GITHUB_OUTPUT
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- name: Chart | Push
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uses: appany/[email protected]
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with:
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name: esgf-migrate
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repository: esgf2-us
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tag: ${{ steps.semantic-version.outputs.generated-semver }}
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path: helm
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registry: ghcr.io
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registry_username: ${{ github.actor }}
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registry_password: ${{ secrets.GITHUB_TOKEN }}
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update_dependencies: "true"
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test:
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name: Test deployment
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runs-on: ubuntu-latest
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needs: [container, helm]
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steps:
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- uses: actions/checkout@v4
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- name: Start minikube
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uses: medyagh/setup-minikube@latest
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- name: Set up Helm
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uses: azure/[email protected]
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- name: Install Helm Chart
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run: |
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helm install test oci://ghcr.io/esgf2-us/esgf-migrate \
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--set image.tag=pr-${{ github.event.pull_request.number }} \
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--debug \
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--wait
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kubectl get pods

‎Dockerfile‎

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FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim
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# Install the project into `/app`
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WORKDIR /app
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# Enable bytecode compilation
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ENV UV_COMPILE_BYTECODE=1
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# Install the dependencies
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COPY src/ pyproject.toml uv.lock /app/
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RUN uv sync --frozen --no-dev --no-cache --no-install-project
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# Install the app separately to avoid rebuilding the image when the app changes
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COPY src/ README.md /app/
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RUN uv sync --frozen --no-dev --no-cache
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# Place executables in the environment at the front of the path
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ENV PATH="/app/.venv/bin:$PATH"
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# Reset the entrypoint, don't invoke `uv`
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ENTRYPOINT []
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# Run the application
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CMD ["python", "app.py"]

‎helm/.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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*.orig
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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
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.vscode/

‎helm/Chart.yaml‎

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apiVersion: v2
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name: esgf-migrate
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description: A Helm chart for Kubernetes
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# A chart can be either an 'application' or a 'library' chart.
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#
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# Application charts are a collection of templates that can be packaged into versioned archives
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# to be deployed.
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#
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# Library charts provide useful utilities or functions for the chart developer. They're included as
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# a dependency of application charts to inject those utilities and functions into the rendering
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# pipeline. Library charts do not define any templates and therefore cannot be deployed.
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type: application
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# This is the chart version. This version number should be incremented each time you make changes
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# to the chart and its templates, including the app version.
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# Versions are expected to follow Semantic Versioning (https://semver.org/)
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version: 0.1.0
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# This is the version number of the application being deployed. This version number should be
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# incremented each time you make changes to the application. Versions are not expected to
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# follow Semantic Versioning. They should reflect the version the application is using.
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# It is recommended to use it with quotes.
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appVersion: "1.16.0"

‎helm/templates/_helpers.tpl‎

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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "esgf-migrate.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "esgf-migrate.fullname" -}}
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{{- if .Values.fullnameOverride }}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- $name := default .Chart.Name .Values.nameOverride }}
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{{- if contains $name .Release.Name }}
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{{- .Release.Name | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{- end }}
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{{- end }}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "esgf-migrate.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "esgf-migrate.labels" -}}
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helm.sh/chart: {{ include "esgf-migrate.chart" . }}
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{{ include "esgf-migrate.selectorLabels" . }}
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{{- if .Chart.AppVersion }}
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app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end }}
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{{/*
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Selector labels
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*/}}
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{{- define "esgf-migrate.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "esgf-migrate.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end }}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "esgf-migrate.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create }}
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{{- default (include "esgf-migrate.fullname" .) .Values.serviceAccount.name }}
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{{- else }}
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}
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{{- end }}

‎helm/templates/serviceaccount.yaml‎

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{{- if .Values.serviceAccount.create -}}
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: {{ include "esgf-migrate.serviceAccountName" . }}
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labels:
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{{- include "esgf-migrate.labels" . | nindent 4 }}
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{{- with .Values.serviceAccount.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
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{{- end }}

‎helm/templates/statefulsets.yaml‎

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{{- range $name, $spec := .Values.instances }}
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: {{ include "esgf-migrate.fullname" $ }}
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labels:
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{{- include "esgf-migrate.labels" $ | nindent 4 }}
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app.kubernetes.io/component: {{ $name }}
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spec:
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replicas: 1
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selector:
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matchLabels:
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{{- include "esgf-migrate.selectorLabels" $ | nindent 6 }}
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app.kubernetes.io/component: {{ $name }}
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template:
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metadata:
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{{- with $.Values.podAnnotations }}
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annotations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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labels:
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{{- include "esgf-migrate.labels" $ | nindent 8 }}
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app.kubernetes.io/component: {{ $name }}
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{{- with $.Values.podLabels }}
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{{- toYaml . | nindent 8 }}
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{{- end }}
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spec:
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{{- with $.Values.imagePullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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serviceAccountName: {{ include "esgf-migrate.serviceAccountName" $ }}
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{{- with $.Values.podSecurityContext }}
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securityContext:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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containers:
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- name: {{ $name }}
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command: ["/bin/sh", "-c"]
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args:
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- {{ $spec.command | quote }}
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{{- with $.Values.securityContext }}
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securityContext:
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{{- toYaml . | nindent 12 }}
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{{- end }}
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image: "{{ $.Values.image.repository }}:{{ $.Values.image.tag | default $.Chart.AppVersion }}"
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imagePullPolicy: {{ $.Values.image.pullPolicy }}
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{{- with $.Values.resources }}
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resources:
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{{- toYaml . | nindent 12 }}
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{{- end }}
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volumeMounts:
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- name: {{ include "esgf-migrate.fullname" $ }}
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mountPath: /data
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{{- with $.Values.nodeSelector }}
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nodeSelector:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with $.Values.affinity }}
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affinity:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with $.Values.tolerations }}
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tolerations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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volumeClaimTemplates:
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- metadata:
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name: {{ include "esgf-migrate.fullname" $ }}-{{ $name }}
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labels:
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{{- include "esgf-migrate.labels" $ | nindent 8 }}
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app.kubernetes.io/component: {{ $name }}
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spec:
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accessModes: ["ReadWriteOnce"]
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resources:
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requests:
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storage: 5G
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---
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{{- end }}

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