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# Which Problems Are Solved
- Operators upgrading from ZITADEL v3 to v4 lacked a clear, docs-backed
upgrade path covering web keys (A-10017), Login V1 vs Login V2
expectations, and post-upgrade options.
- There was no standalone guide for adopting Login V2 after already
running on v4.
- Related ops/docs pages did not consistently point readers to the
upgrade and Login V2 adoption material.
- Kubernetes/Helm operators upgrading to a chart that ships ZITADEL v4
had no ops-page section linking the advisory, upgrade guide, optional
Login V2 deferral (`login.enabled: false`), and chart README upgrade
notes.
# How the Problems Are Solved
- Adds technical advisory **A-10017** documenting OIDC web key staging
requirements before upgrading to v4.
- Adds an **upgrade-v3-to-v4** guide with the recommended upgrade path
(Login V1 remains supported; Login V2 is optional at upgrade time).
- Adds a **v4-only adopt-login-v2** guide for teams adopting Login V2
later, with steps and caveats separate from the version upgrade.
- Adds an **Upgrading to ZITADEL v4** subsection under
`self-hosting/deploy/kubernetes/operations.mdx` that links to A-10017,
the upgrade guide, Adopt Login V2, notes `login.enabled: false` when not
adopting Login V2 yet, and points to the [Helm chart
README](https://github.com/zitadel/zitadel-charts/blob/main/charts/zitadel/README.md)
for chart-specific breaking changes.
# Additional Changes
- Registers new docs in the sidebar and wires Related / cross-links from
upgrade and ops pages so the advisory and guides are discoverable
together.
- Aligns language so upgrade vs. Login V2 adoption are clearly separated
concerns.
- Light cross-link updates on troubleshooting / updating-scaling /
login-client pages where related.
# Additional Context
- Related: A-10017 (web keys advisory)
- Docs paths introduced/updated:
- `apps/docs/content/support/advisory/a10017.mdx`
- `apps/docs/content/self-hosting/manage/upgrade-v3-to-v4.mdx`
- `apps/docs/content/self-hosting/manage/adopt-login-v2.mdx`
- `apps/docs/content/self-hosting/deploy/kubernetes/operations.mdx` (new
"Upgrading to ZITADEL v4" section)
- Sidebar and Related / cross-links
- Companion Helm chart README PR:
https://github.com/zitadel/zitadel-charts/pull/608
---------
Co-authored-by: Cursor <[email protected]>
This pull request significantly expands and restructures the Kubernetes
deployment documentation for Zitadel. It introduces detailed,
task-focused guides for installation, configuration, ingress, and
database setup, replacing the previous minimal documentation. The new
docs provide comprehensive instructions and best practices for deploying
Zitadel on Kubernetes using Helm, including security, scaling, and high
availability considerations.
The most important changes are:
**Documentation Restructuring and Overview**
- Added a new `index.mdx` providing an overview of the Zitadel Helm
chart, architecture, prerequisites, and quick links to relevant
resources and next steps.
- Removed the old minimal Kubernetes deployment page and replaced it
with a structured, multi-page documentation set.
**Installation and Setup**
- Added an `installation.mdx` guide with step-by-step instructions for
preparing prerequisites, creating Kubernetes secrets, configuring
`values.yaml`, installing the Helm chart, and verifying the deployment.
**Configuration and Best Practices**
- Added a `configuration.mdx` guide covering Helm chart configuration
options, including replica count, container images, security contexts,
external domain setup, secrets management, scaling, autoscaling, pod
disruption budgets, and anti-affinity rules.
**Ingress and Database Configuration**
- Added an `ingress.mdx` guide detailing how to configure Kubernetes
ingress resources for Zitadel and Login containers, including TLS
termination and certificate management.
- Added a `database.mdx` guide explaining how to connect Zitadel to
PostgreSQL with various TLS/security options and how to manage database
credentials and certificates using Kubernetes secrets.
Mridang AgarwallaandGitHub
Florian ForsterandGitHub