updated release to have installation and verification steps included in release notes

[kumaritanushree]

With this change release notes will look like:

✨ What's new

• Test PR by @kumaritanushree in https://github.com/kumaritanushree/vendir/pull/1

New Contributors

• @kumaritanushree made their first contribution in https://github.com/kumaritanushree/vendir/pull/1

Installation and signature verification

Installation

By downloading binary from the release

For instance, if you are using Linux on an AMD64 architecture:

# Download the binary
curl -LO https://github.com/{{ .Env.GITHUB_REPOSITORY }}/releases/download/{{ .Tag }}/{{ .ProjectName }}-linux-amd64

# Move the binary in to your PATH
mv vendir-linux-amd64 /usr/local/bin/vendir

# Make the binary executable
chmod +x /usr/local/bin/vendir

Via Homebrew (macOS or Linux)

$ brew tap carvel-dev/carvel
$ brew install vendir
$ vendir version  

Verify checksums file signature

Need to install cosign on your system https://docs.sigstore.dev/system_config/installation/

The checksums file provided within the artifacts attached to this release is signed using Cosign with GitHub OIDC. To validate the signature of this file, run the following commands:

# Download the checksums file, certificate and signature
curl -LO https://github.com/{{ .Env.GITHUB_REPOSITORY }}/releases/download/{{ .Tag }}/checksums.txt
curl -LO https://github.com/{{ .Env.GITHUB_REPOSITORY }}/releases/download/{{ .Tag }}/checksums.txt.pem
curl -LO https://github.com/{{ .Env.GITHUB_REPOSITORY }}/releases/download/{{ .Tag }}/checksums.txt.sig

# Verify the checksums file
cosign verify-blob checksums.txt \
--certificate checksums.txt.pem \
--signature checksums.txt.sig \
--certificate-identity-regexp=https://github.com/{{ .Env.GITHUB_REPOSITORY_OWNER }} \
--certificate-oidc-issuer=https://token.actions.githubusercontent.com

Verify binary integrity

To verify the integrity of the downloaded binary, you can utilize the checksums file after having validated its signature.

# Verify the binary using the checksums file
sha256sum -c checksums.txt --ignore-missing

Full Changelog: https://github.com/kumaritanushree/vendir/compare/v0.0.28...v0.0.29

📂 Files Checksum

4bce0e1e2865610292f4230ad4f1f4edc69fa4062fc68b54e288656f4bc23f3e  ./vendir-linux-arm64
7470d4b9f80e40b6c474a77ffe4e9dd78770426fa3d3ca8e54daf0ccbde94ae0  ./vendir-darwin-arm64
a488635950e1581ea3a8985a13a49aebb369d5f7aa4bad0a2d229e0161f118a7  ./vendir-linux-amd64
c532c980ec2d4e8d6d7ee845abc4366ae1dacf8f663801e6ff730ab3b9e6b6ad  ./vendir-windows-amd64.exe
c74203afdfd05525054617cf2ff6401f3ea86eb9f2385acb2afe4e06089f31b8  ./vendir-darwin-amd64

[praveenrewar]

LGTM! Could you also add the link to the release from your fork in the PR description.

[kumaritanushree]

LGTM! Could you also add the link to the release from your fork in the PR description.

I might delete that fork repo later, will add screenshot instead.

[100mik]

LGTM!