The nginx deploy-time pre-validation runs `nginx -t` against a minimal wrapper that omits the global `load_module` directives, so a custom `nginx.conf.sigil` using a directive from a dynamically loaded module fails validation even though it is valid against the running server. Document overriding the `validate-config` template through the `nginx-app-template-source` trigger as the supported workaround.
Every Go-implemented plugin's `:report --format json` now emits keys without the redundant `<plugin>-` head segment, matching the shape bash plugins have always emitted. The CLI flag names and `:set` semantics are unchanged. For backwards compatibility during the 0.38.x patch series, the legacy `<plugin>-<property>` keys are emitted side-by-side with the new keys, and a future major release will drop the legacy keys. `common.ReportSingleApp` is refactored to accept a `ReportSingleAppInput` struct with a `Validate()` method so the input is checked before any work runs, which also catches the latent `"docker options"` reportType bug at the API boundary.
nginx 1.25.1 deprecated the `listen ... http2` parameter in favor of a standalone `http2 on;` directive. Apps that ship a custom `nginx.conf.sigil` forked from an old default still hardcode `listen ... ssl http2;` and trigger `nginx: [warn]` lines from `nginx -t`. Surface a deprecation warning during `nginx_build_config` whenever the active template is app- or plugin-supplied and still contains the deprecated parameter, matching the existing warnings for `DOKKU_APP_LISTENERS`, `NGINX_SSL_PORT`, and `NGINX_PORT`, and point users at the `HTTP2_DIRECTIVE_SUPPORTED` variable already used by the default template.
Renames the existing `## Internal properties` umbrella section to `## Properties` across all plugin docs and adds a new `### Settable properties` subsection enumerating every property accepted by each plugin's `:set` command. Each row lists scope, default, the actual `:report` flag shapes that surface the value, and a one-line description. The buildpacks plugin is included even though it uses `:set-property`, with a note in the subsection clarifying the legacy command name. Property lists, scopes, and report flags were verified against plugin source and the live dokku binary.
When pre-validating a custom nginx.conf.sigil before the build phase, no app listeners exist yet on first deploys. Templates that emit `proxy_pass http://app-port` while gating the matching upstream block on `DOKKU_APP_WEB_LISTENERS` render an undefined upstream, causing `nginx -t` to fail with "host not found in upstream". Pre-validation now passes a `127.0.0.1:5000` placeholder for `DOKKU_APP_WEB_LISTENERS` so the upstream block emits a static server entry and the template can be validated for syntax without depending on live listeners.
Renders the user-supplied nginx.conf.sigil via sigil into a tmp file and runs `nginx -t` against a wrapped copy as soon as the template is extracted from the source tree, so syntactically invalid templates abort the deploy before the build phase runs. Skipped when `proxy-type` is not `nginx`, when `disable-custom-config=true`, or when no custom template was extracted. Closes#7827.
The buildpacks entry in tests/apps/dockerfile/app.json caused
the post-extract trigger to write a .buildpacks file during
Dockerfile-based deploys, breaking builder detection. Remove
the entry and add Go unit tests for getBuildpacks/validBuildpackURL,
a bats integration test for deploying with app.json buildpacks,
and documentation for the new feature.
Some files - those maintained by external organizations - have a very light treatment and solely point to the upstream documentation to reduce any issues creating examples/documentation for them that may differ in the future.
Closes#7315
