[Snyk] Security upgrade golang from 1.21 to 1.26rc1

[Dustin4444]

Snyk has created this PR to fix 4 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• telegraf-build/scripts/Dockerfile

We recommend upgrading to golang:1.26rc1, as this image has only 93 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Link Following SNYK-DEBIAN12-GIT-6846203	584
	Link Following SNYK-DEBIAN12-GIT-6846203	584
	Detection of Error Condition Without Action SNYK-DEBIAN12-OPENSSH-8732597	330
	Inappropriate Encoding for Output Context SNYK-DEBIAN12-OPENSSH-1556053	290
	CVE-2025-6965 SNYK-DEBIAN12-SQLITE3-10753055	263

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• This PR was automatically created by Snyk using the credentials of a real user.

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[gemini-code-assist]

Summary of Changes

Hello @Dustin4444, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request aims to bolster the project's security by updating the Go base image used in the Dockerfile. By moving from golang:1.21 to golang:1.26rc1, the PR resolves several critical and medium-severity vulnerabilities, ensuring the application benefits from the latest security patches and a more robust foundation.

Highlights

• Security Vulnerability Fix: This pull request, automatically generated by Snyk, addresses 4 identified security vulnerabilities within the project's Dockerfile dependencies.
• Golang Version Upgrade: The golang base image in telegraf-build/scripts/Dockerfile is upgraded from version 1.21 to 1.26rc1.
• Improved Security Posture: Upgrading the base image significantly reduces the number of known vulnerabilities, contributing to a more secure application environment.

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[gemini-code-assist]

Code Review

This pull request, automatically generated by Snyk, proposes upgrading the Go version in the Dockerfile from 1.21 to 1.26rc1 to address security vulnerabilities. While the intention to improve security is good, the suggested version 1.26rc1 is problematic. It does not correspond to an existing Go release, and the Docker image is not available, which would cause the build to fail. Additionally, using release candidate (RC) versions is not advisable for build environments. I've provided a comment suggesting an upgrade to a recent stable version of Go, such as 1.22, which will resolve security issues while maintaining build stability.

[gemini-code-assist]

The proposed upgrade to golang:1.26rc1 is concerning. This version tag does not correspond to a known Go release, and the Docker image golang:1.26rc1 is not available on Docker Hub. This will cause the build to fail.

Furthermore, using release candidate (RC) versions is not recommended for production or build environments due to potential instability. It's best practice to use stable releases.

To address the security vulnerabilities while ensuring a stable build, I recommend upgrading to a recent stable version, for example golang:1.22.

FROM golang:1.22