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Alex Dunn f2c5dd7b44 Add Helm chart (#14090) 
* add Helm chart

known issues/future work:

- SSO is unsupported

- S3/Minio/GCS is unsupported

- Swift is unsupported

- WEB_DOMAIN is unsupported

- Tor is unsupported

* helm: clarify how LOCAL_DOMAIN is set

* helm: add chart description

* helm: make DB_POOL and Sidekiq concurrency configurable

* helm: only enforce pod affinity when using ReadWriteOnce

* helm: clarify compatibility

* helm: clean up application variables

* helm: add job to create initial admin
2020-06-29 13:58:48 +02:00

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Introduction

This is a Helm chart for installing Mastodon into a Kubernetes cluster. The basic usage is:

cp values.yaml.template values.yaml
edit values.yaml # configure required settings
helm dep update
helm upgrade --install my-mastodon ./

This chart has been tested on Helm 3.0.1 and above.

Configuration

The variables that must be configured are:

  • ingress.hostname; even if you aren’t using an Ingress, this value is used to set LOCAL_DOMAIN.

  • password and keys in the secrets, postgresql, and redis groups; if left blank, some of those values will be autogenerated, but will not persist across upgrades.

  • SMTP settings for your mailer in the smtp group.

Missing features

Currently this chart does not support:

  • Hidden services
  • S3/Minio/GCS
  • Single Sign-On
  • Swift
  • configurations using WEB_DOMAIN

Upgrading

Because database migrations are managed as a Job separate from the Rails and Sidekiq deployments, it’s possible they will occur in the wrong order. After upgrading Mastodon versions, it may sometimes be necessary to manually delete the Rails and Sidekiq pods so that they are recreated against the latest migration.