rsyslog now accepts .yaml/.yml files as configuration files
in addition to RainerScript (.conf). The format is triggered
automatically based on file extension, both for the main config
file (-f flag) and for include() directives.
Architecture:
- New runtime/yamlconf.c (libyaml event-based parser) builds the
same cnfobj+nvlst structures that the bison parser produces and
calls cnfDoObj() for each block.
- Ruleset script: keys are synthesised into a complete RainerScript
ruleset(name=...) { ... } block and pushed onto the flex buffer
stack so the existing lex/bison pipeline handles all filter
expressions and statements unchanged.
- routing in rsconf.c::load() and cnfDoInclude() detects .yaml/.yml
by extension and delegates to yamlconf_load().
- cnfHasPendingBuffers() (new) lets rsconf.c flush queued script
buffers after YAML-as-main-config loading.
- Guarded by #ifdef HAVE_LIBYAML throughout; graceful error when
libyaml is absent.
Schema (top-level YAML keys):
global, modules, inputs, templates, rulesets, mainqueue,
include, parser, lookup_table, dyn_stats, ratelimit, timezone
Parameter names are identical to RainerScript; all type coercion
and validation is reused via nvlstGetParams() unchanged.
Tests: yaml-basic, yaml-include, yaml-ruleset-script, yaml-error
Documentation: doc/source/configuration/yaml_config.rst
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
