mte/unikernel/duniverse/mirage/lib/devices/syslog.ml
2025-11-11 02:07:51 +01:00

95 lines
4.1 KiB
OCaml

open Functoria.DSL
type syslog = SYSLOG
let syslog = typ SYSLOG
let pkg sublibs = [ package ~min:"0.5.0" ~max:"0.6.0" ~sublibs "logs-syslog" ]
let syslog_udp_conf ?group () =
let endpoint = Runtime_arg.syslog ?group None
and port = Runtime_arg.syslog_port ?group None
and truncate = Runtime_arg.syslog_truncate ?group None in
let packages = pkg [ "mirage" ] in
let runtime_args = Runtime_arg.[ v endpoint; v port; v truncate ] in
let connect _i modname = function
| [ stack; endpoint; port; truncate ] ->
code ~pos:__POS__
"@[<v 2>match %s with@ | None ->Logs.warn (fun m -> m \"no syslog \
server specified, dumping logs to stdout\"); Lwt.return_unit@ | \
Some server ->@ let reporter =@ %s.create %s \
~hostname:(Mirage_runtime.name ()) ~port:%s server ?truncate:%s ()@ \
in@ Logs.set_reporter reporter;@ Lwt.return_unit@]"
endpoint modname stack port truncate
| _ -> Misc.connect_err "syslog_udp" 5
in
impl ~packages ~runtime_args ~connect "Logs_syslog_mirage.Udp"
(Stack.stackv4v6 @-> syslog)
let syslog_udp ?group stack = syslog_udp_conf ?group () $ stack
let syslog_tcp_conf ?group () =
let endpoint = Runtime_arg.syslog ?group None
and port = Runtime_arg.syslog_port ?group None
and truncate = Runtime_arg.syslog_truncate ?group None in
let packages = pkg [ "mirage" ] in
let runtime_args = Runtime_arg.[ v endpoint; v port; v truncate ] in
let connect _i modname = function
| [ stack; endpoint; port; truncate ] ->
code ~pos:__POS__
"@[<v 2>match %s with@ | None -> Logs.warn (fun m -> m \"no syslog \
server specified, dumping logs to stdout\"); Lwt.return_unit@ | \
Some server ->@ %s.create %s ~hostname:(Mirage_runtime.name ()) \
~port:%s server ?truncate:%s () >>= function@ | Ok reporter -> \
Logs.set_reporter reporter; Lwt.return_unit@ | Error e -> \
invalid_arg e@]"
endpoint modname stack port truncate
| _ -> Misc.connect_err "syslog_tcp" 5
in
impl ~packages ~runtime_args ~connect "Logs_syslog_mirage.Tcp"
(Stack.stackv4v6 @-> syslog)
let syslog_tcp ?group stack = syslog_tcp_conf ?group () $ stack
let syslog_tls_conf ?group () =
let endpoint = Runtime_arg.syslog ?group None
and port = Runtime_arg.syslog_port ?group None
and truncate = Runtime_arg.syslog_truncate ?group None
and keyname = Runtime_arg.syslog_keyname ?group None in
let packages = pkg [ "mirage"; "mirage.tls" ] in
let runtime_args =
Runtime_arg.[ v endpoint; v port; v truncate; v keyname ]
in
let connect _i modname = function
| [ stack; kv; endpoint; port; truncate; keyname ] ->
code ~pos:__POS__
"@[<v 2>match %s with@ | None -> Logs.warn (fun m -> m \"no syslog \
server specified, dumping logs to stdout\"); Lwt.return_unit@ | \
Some server ->@ %s.create %s %s ~hostname:(Mirage_runtime.name ()) \
~port:%s server ?truncate:%s ?keyname:%s () >>= function@ | Ok \
reporter -> Logs.set_reporter reporter; Lwt.return_unit@ | Error e \
-> invalid_arg e@]"
endpoint modname stack kv port truncate keyname
| _ -> Misc.connect_err "syslog_tls" 8
in
impl ~packages ~runtime_args ~connect "Logs_syslog_mirage_tls.Tls"
(Stack.stackv4v6 @-> Kv.ro @-> syslog)
let syslog_tls ?group stack kv = syslog_tls_conf ?group () $ stack $ kv
let monitoring_conf ?group () =
let monitor_host = Runtime_arg.monitor ?group None in
let packages = [ package ~min:"0.0.6" ~max:"0.1.0" "mirage-monitoring" ] in
let runtime_args = Runtime_arg.[ v monitor_host ] in
let connect _i modname = function
| [ stack; monitor ] ->
code ~pos:__POS__
"Lwt.return (match %s with| None -> Logs.warn (fun m -> m \"no \
monitor specified, not outputting statistics\")| Some ip -> \
%s.create ip ~hostname:(Mirage_runtime.name ()) %s)"
monitor modname stack
| _ -> assert false
in
impl ~packages ~runtime_args ~connect "Mirage_monitoring.Make"
(Stack.stackv4v6 @-> Functoria.job)
let monitoring ?group stack = monitoring_conf ?group () $ stack