Observed Signal · May 26, 2026 · Technical Release · Source: DEV Community · Impact: 1/5 · Sentiment: Neutral
CLI Wrapper for Cloudflare Tunnel with Zero Trust
A developer published 'zt', an open-source Go CLI that automates creating Cloudflare Tunnels protected by Cloudflare Zero Trust. The tool (zt up <name> <port>) creates a tunnel, configures ingress rules, adds a DNS CNAME, creates a Zero Trust Access application with access policy, starts cloudflared in the background, and saves state locally. It supports flags for public access or allow-listing specific emails. Configuration and state are stored in ~/.zt-config.json and ~/.zt-state.json (0600 permissions). Prerequisites include a Cloudflare-managed domain, cloudflared installed, and a Cloudflare API token with specific DNS, Tunnel, and Access permissions. The project is published under an MIT license on GitHub (casablanque-code/cfzt).
Developer-focused open-source CLI that streamlines Cloudflare Zero Trust tunnel setup; useful for dev and ops but not industry-shifting for AdTech/MarTech.
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Key Takeaways & Evidence Grounding
- Author published a Dev.to post on 2026-05-26 announcing 'zt', a CLI wrapper for Cloudflare Tunnel with Zero Trust.
- 'zt' is a single binary written in Go and released as open-source under the MIT license (GitHub: casablanque-code/cfzt).
- 'zt up <name> <port>' automates creating a Cloudflare Tunnel, ingress rules, DNS CNAME, a Zero Trust Access application/policy, starts cloudflared, and saves state locally; 'zt down <name>' removes them.
- Configuration/state files are stored locally at ~/.zt-config.json and ~/.zt-state.json and are secured with 0600 file permissions.
- Prerequisites: a domain on Cloudflare, cloudflared installed, and a Cloudflare API token with Account/Cloudflare Tunnel/Edit, Zone/DNS/Edit, and Account/Access: Apps and Policies/Edit permissions.
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