Add Minikube Setup Instructions to Quickstart Documentation

[vedantlavale]

What this PR does

Adds Minikube setup guidance to the Quickstart documentation across multiple versions (v1.0.x, v0.56.x, v0.55.x, and docs-dev). This includes a link to the official installation guide, cluster startup instructions, verification steps, and troubleshooting links.

Why we need it

The current Quickstart documentation requires users to have "a running Kubernetes cluster" but provides no guidance on how to set one up. This creates a barrier to entry for new users who:

• Are new to Kubernetes and don't know how to create a cluster
• Want to try PipeCD locally before setting up infrastructure
• Use different development environments with varying setup requirements

This change removes that friction and helps users get started with PipeCD more quickly.

Which issue(s) this PR fixes

Fixes #6800

Does this PR introduce a user-facing change?

Yes

How are users affected by this change

Users following the Quickstart guide will now have clear, actionable instructions for setting up a local Kubernetes cluster using Minikube. This significantly reduces friction for first-time users and lowers the barrier to entry for PipeCD adoption.

Is this breaking change

No

How to migrate (if breaking change)

N/A

---

Additional Context

• Updated 4 documentation versions consistently:

  • v1.0.x (latest stable)
  • docs-dev (development)
  • v0.56.x (previous major version)
  • v0.55.x (earlier version)

• Installation: Single link to the official Minikube installation guide

• Troubleshooting: Links to the Minikube drivers and docs pages

• User experience: Clear step-by-step flow from installation to verification

Files Changed

• docs/content/en/docs-v1.0.x/quickstart/_index.md
• docs/content/en/docs-dev/quickstart/_index.md
• docs/content/en/docs-v0.56.x/quickstart/_index.md
• docs/content/en/docs-v0.55.x/quickstart/_index.md

Testing

Verified that:

• All markdown syntax is correct
• Links to official Minikube documentation are valid
• Code blocks are properly formatted

Screenshots

[vedantlavale]

@khanhtc1202 @Ayushmore1214 @rahulshendre could you please review this new PR? lmk if any change

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds Minikube-based local Kubernetes cluster setup instructions to the Quickstart docs so new users can satisfy the “have a cluster” prerequisite without external guidance.

Changes:

• Document Minikube installation steps for macOS/Linux/Windows.
• Add cluster start + verification commands (minikube start, kubectl cluster-info, kubectl get nodes).
• Add brief troubleshooting guidance and links to Minikube docs.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 6 comments.

File	Description
docs/content/en/docs-v1.0.x/quickstart/_index.md	Adds Minikube setup section under prerequisites for v1.0.x quickstart.
docs/content/en/docs-dev/quickstart/_index.md	Adds Minikube setup section under prerequisites for docs-dev quickstart.
docs/content/en/docs-v0.56.x/quickstart/_index.md	Backports Minikube setup section to v0.56.x quickstart.
docs/content/en/docs-v0.55.x/quickstart/_index.md	Backports Minikube setup section to v0.55.x quickstart.

[Ayushmore1214]

And one more thing as this a site/docs based change, we might need a screenshot of this after running it locally, this is going to be a compulsion soon about the screenshot!

[vedantlavale]

And one more thing as this a site/docs based change, we might need a screenshot of this after running it locally, this is going to be a compulsion soon about the screenshot!

Yeah sure

[Ayushmore1214]

@vedantlavale checked your screenshot there seems to be a lot of space in the upper side of the command box, is there any way we can fix that ? no worries if we don't either way looks good to me, was thinking of better user experience

[vedantlavale]

yeah the extra space above the code blocks is coming from the new global copy button styling, not from the Markdown in this section. It affects all code blocks across the docs, so I didn’t adjust it here. If you’d like, I can open a separate follow‑up to tweak the global code block spacing so it looks tighter

[rahulshendre]

yeah the extra space above the code blocks is coming from the new global copy button styling, not from the Markdown in this section. It affects all code blocks across the docs, so I didn’t adjust it here. If you’d like, I can open a separate follow‑up to tweak the global code block spacing so it looks tighter

yes, @vedantlavale it was recently added, but before making any changes let's wait some time for maintainer feedback and most importantly user feedback ref
cc @eeshaanSA

[rahulshendre]

LGTM
Thanks @vedantlavale