Fix chart for maildev 2.x and repair chart publishing

[djfarrelly]

Fixes #5 and #6.

Problem

The published Helm chart is broken on two independent axes:

1. Stale/dead download URLs (Not working: all pointing at private urls #5). https://maildev.github.io/helm/index.yaml points every chart's urls: at https://github.com/splitt3r/helm/releases/download/.... That repo is now 404, so helm install cannot fetch the .tgz. The index was originally generated from a personal fork back in 2021.
2. Chart targets the maildev 1.x interface (Actual Helm not working #6). The chart hardcoded flags and set MAILDEV_DISABLE_WEB, which no longer works as an env var in maildev 2.x — installs came out misconfigured. The only working path today is a local helm install ./charts/maildev.

Root cause of #1 is that the release workflows use deprecated actions that no longer run on current GitHub runners (and modern GITHUB_TOKEN is read-only by default), so no working release under maildev/helm was ever published.

Chart changes

Adapted from community PR #7 (by @pando85 / @thibveni), reconciled with the fixes already on main:

• Bump appVersion 1.1.0 → 2.2.1 (latest stable), chart version 0.1.3 → 0.2.0.
• Rename outgoing_relay → outgoingRelay; image tag now follows appVersion.
• Replace hardcoded args with conditional flags: --verbose, --auto-relay, --outgoing-secure, --disable-web.
• Drop the broken MAILDEV_DISABLE_WEB env var (use --disable-web).
• Only emit outgoing-relay env vars when set; gate HTTPS key/cert on https.enabled.
• Add an outgoingRelay.autoRelay toggle; render relay rules from values and gate the ConfigMap/volume/mount on it; roll pods on rule change via a checksum/ annotation.
• Kept the fullname-templated relay ConfigMap name (PR Fork branch #7 regressed this to a hardcoded name that breaks on non-maildev release names).
• Stopped shipping the smtp.gmail.com / XXX / admin sample defaults.

Workflow changes

• release.yaml: checkout@v4 (fetch-depth: 0), setup-helm@v4, chart-releaser-action@v1.6.0, and permissions: contents: write so the default token can create releases.
• lint-test.yaml: modern chart-testing-action@v2 invocation (ct lint / ct install), checkout@v4, kind-action@v1.10.0.

Verification

• helm lint charts/maildev → 0 failures.
• helm template with defaults: image maildev/maildev:2.2.1, no ConfigMap, no relay env, empty args.
• helm template --set outgoingRelay.autoRelay.enabled=true (+ relay creds): ConfigMap renders [{"allow":"*"}], all conditional args/env/volume wired correctly.

Note

Merging this to main triggers chart-releaser-action, which publishes a fresh release under maildev/helm and rewrites gh-pages index.yaml with working URLs — that is what actually closes #5. The stale splitt3r-pointing entries in the existing index.yaml can be pruned separately.

🤖 Generated with Claude Code