helm: Add helm chart tests (#20394)

* helm: Fix consistent list indentation

* helm: Add helm lint and helm template tests

* helm: Add helm template --validate test

* helm: Add helm install test
This commit is contained in:
Erik Sundell 2022-11-13 22:22:07 +01:00 committed by GitHub
parent 92f1734590
commit d74c7876c2
9 changed files with 213 additions and 37 deletions

138
.github/workflows/test-chart.yml vendored Normal file
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# This is a GitHub workflow defining a set of jobs with a set of steps.
# ref: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
#
name: Test chart
on:
pull_request:
paths:
- "chart/**"
- "!**.md"
- ".github/workflows/test-chart.yml"
push:
paths:
- "chart/**"
- "!**.md"
- ".github/workflows/test-chart.yml"
branches-ignore:
- "dependabot/**"
workflow_dispatch:
permissions:
contents: read
defaults:
run:
working-directory: chart
jobs:
lint-templates:
runs-on: ubuntu-22.04
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: "3.x"
- name: Install dependencies (yamllint)
run: pip install yamllint
- run: helm dependency update
- name: helm lint
run: |
helm lint . \
--values dev-values.yaml
- name: helm template
run: |
helm template . \
--values dev-values.yaml \
--output-dir rendered-templates
- name: yamllint (only on templates we manage)
run: |
rm -rf rendered-templates/mastodon/charts
yamllint rendered-templates \
--config-data "{rules: {indentation: {spaces: 2}, line-length: disable}}"
# This job helps us validate that rendered templates are valid k8s resources
# against a k8s api-server, via "helm template --validate", but also that a
# basic configuration can be used to successfully startup mastodon.
#
test-install:
runs-on: ubuntu-22.04
timeout-minutes: 15
strategy:
fail-fast: false
matrix:
include:
# k3s-channel reference: https://update.k3s.io/v1-release/channels
- k3s-channel: latest
- k3s-channel: stable
# This represents the oldest configuration we test against.
#
# The k8s version chosen is based on the oldest still supported k8s
# version among two managed k8s services, GKE, EKS.
# - GKE: https://endoflife.date/google-kubernetes-engine
# - EKS: https://endoflife.date/amazon-eks
#
# The helm client's version can influence what helper functions is
# available for use in the templates, currently we need v3.6.0 or
# higher.
#
- k3s-channel: v1.21
helm-version: v3.6.0
steps:
- uses: actions/checkout@v3
# This action starts a k8s cluster with NetworkPolicy enforcement and
# installs both kubectl and helm.
#
# ref: https://github.com/jupyterhub/action-k3s-helm#readme
#
- uses: jupyterhub/action-k3s-helm@v3
with:
k3s-channel: ${{ matrix.k3s-channel }}
helm-version: ${{ matrix.helm-version }}
metrics-enabled: false
traefik-enabled: false
docker-enabled: false
- run: helm dependency update
# Validate rendered helm templates against the k8s api-server
- name: helm template --validate
run: |
helm template --validate mastodon . \
--values dev-values.yaml
- name: helm install
run: |
helm install mastodon . \
--values dev-values.yaml \
--timeout 10m
# This actions provides a report about the state of the k8s cluster,
# providing logs etc on anything that has failed and workloads marked as
# important.
#
# ref: https://github.com/jupyterhub/action-k8s-namespace-report#readme
#
- name: Kubernetes namespace report
uses: jupyterhub/action-k8s-namespace-report@v1
if: always()
with:
important-workloads: >-
deploy/mastodon-sidekiq
deploy/mastodon-streaming
deploy/mastodon-web
job/mastodon-assets-precompile
job/mastodon-chewy-upgrade
job/mastodon-create-admin
job/mastodon-db-migrate

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# A helm chart's templates and default values can be packaged into a .tgz file.
# When doing that, not everything should be bundled into the .tgz file. This
# file describes what to not bundle.
#
# Manually added by us
# --------------------
#
dev-values.yaml
mastodon-*.tgz
# Boilerplate .helmignore from `helm create mastodon`
# ---------------------------------------------------
#
# Patterns to ignore when building packages. # Patterns to ignore when building packages.
# This supports shell glob matching, relative path matching, and # This supports shell glob matching, relative path matching, and
# negation (prefixed with !). Only one pattern per line. # negation (prefixed with !). Only one pattern per line.
@ -21,4 +35,3 @@
.idea/ .idea/
*.tmproj *.tmproj
.vscode/ .vscode/
mastodon-*.tgz

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@ -7,7 +7,7 @@ Kubernetes cluster. The basic usage is:
1. `helm dep update` 1. `helm dep update`
1. `helm install --namespace mastodon --create-namespace my-mastodon ./ -f path/to/additional/values.yaml` 1. `helm install --namespace mastodon --create-namespace my-mastodon ./ -f path/to/additional/values.yaml`
This chart has been tested on Helm 3.0.1 and above. This chart is tested with k8s 1.21+ and helm 3.6.0+.
# Configuration # Configuration

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dev-values.yaml Normal file
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# Chart values used for testing the Helm chart.
#
mastodon:
secrets:
secret_key_base: dummy-secret_key_base
otp_secret: dummy-otp_secret
vapid:
private_key: dummy-vapid-private_key
public_key: dummy-vapid-public_key
# ref: https://github.com/bitnami/charts/tree/main/bitnami/redis#parameters
redis:
replica:
replicaCount: 1
# ref: https://github.com/bitnami/charts/tree/main/bitnami/elasticsearch#parameters
elasticsearch:
master:
replicaCount: 1
data:
replicaCount: 1
coordinating:
replicaCount: 1
ingest:
replicaCount: 1