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docs: ✏️ update cluster upgrade docs #5847

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Jul 5, 2024
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docs: ✏️ update cluster upgrade docs #5847

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docs: ✏️ update cluster upgrade docs
sj-williams Jul 5, 2024
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Commit changes made by code formatters
github-actions[bot] Jul 5, 2024
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6 changes: 6 additions & 0 deletions runbooks/source/eks-cluster.html.md.erb
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Expand Up @@ -166,3 +166,9 @@ terraform apply
```

[cluster build pipeline]: https://concourse.cloud-platform.service.justice.gov.uk/teams/main/pipelines/create-cluster

# Provisiong a custom cluster

If you working on a task that involves changing/adding cluster configuration or components, you can have Concourse execute a clean cluster build for you based off your working infrastructure branch. Refer to the instructions detailed in the Concourse repository [pipelines README](https://github.com/ministryofjustice/cloud-platform-terraform-concourse/blob/main/pipelines/README.md#custom-cluster-pipeline) for the steps to follow.

Once you're done with your customised cluster, you can have Concourse delete it for you using the branch flag of the [CLI delete-cluster command](https://runbooks.cloud-platform.service.justice.gov.uk/delete-cluster.html#delete-the-cluster-with-concourse-delete-cluster-pipeline).
6 changes: 5 additions & 1 deletion runbooks/source/upgrade-eks-cluster.html.md.erb
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@@ -1,7 +1,7 @@
---
title: Upgrade EKS cluster
weight: 53
last_reviewed_on: 2024-04-10
last_reviewed_on: 2024-07-05
review_in: 6 months
---

Expand Down Expand Up @@ -35,6 +35,10 @@ Before you begin, there are a few pre-requisites:

- Run [kubent](https://github.com/doitintl/kube-no-trouble) against cluster to find deprecated APIs.

## Creating Cluster Upgrade GitHub Issues

In order to help maintain a clear process for steps to follow in carrying out a cluster upgrade, we have an [issue template](https://github.com/ministryofjustice/cloud-platform/blob/main/.github/ISSUE_TEMPLATE/cloud-platform-k8s-upgrade-template.md) which is used by [this script](https://github.com/ministryofjustice/cloud-platform/blob/main/cmd/create-upgrade-issues/main.go) to create individual issues for each step of the upgrade process. As you work through these issues, its helpful to review and update the template where necessary to ensure it remains relevant for future upgrades.

## Upgrade Steps

### Compatibility Check
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