home-lab/packages/lab-tool/archive/lab-old/utils/config.scm
2025-07-07 14:20:29 +02:00

69 lines
2.2 KiB
Scheme

;; utils/config.scm - Declarative configuration for Home Lab Tool
(define-module (utils config)
#:export (default-config
get-config-value
host-configs
get-host-config
get-all-hosts
validate-host-name
get-ssh-config))
;; Declarative configuration (source of truth)
(define default-config
'((ssh-user . "sma")
(hosts . ((congenital-optimist (hostname . "congenital-optimist"))
(sleeper-service (hostname . "sleeper-service"))
(grey-area (hostname . "grey-area"))
(reverse-proxy (hostname . "reverse-proxy"))
(little-rascal (hostname . "little-rascal"))))
(deployment . ((default-mode . "boot")
(timeout . 300)
(retry-count . 3)))
(monitoring . ((interval . 30)
(timeout . 10)))
(mcp . ((port . 3001)
(host . "localhost")
(log-level . "info")))))
;; Accessors (pure, no mutation, no IO)
(define (get-config-value path . default)
(let ((result (fold (lambda (key acc)
(if (and acc (list? acc))
(assoc-ref acc key)
#f))
default-config path)))
(if result
result
(if (null? default) #f (car default)))))
(define (host-configs)
(get-config-value '(hosts)))
(define (get-host-config host-name)
(let ((host-symbol (if (symbol? host-name)
host-name
(string->symbol host-name))))
(assoc-ref (host-configs) host-symbol)))
(define (get-all-hosts)
(map (lambda (host-entry)
(symbol->string (car host-entry)))
(host-configs)))
(define (validate-host-name host-name)
(let ((hosts (get-all-hosts)))
(if (member host-name hosts)
#t
#f)))
(define (get-ssh-config host-name)
(let ((host-config (get-host-config host-name))
(ssh-user (get-config-value '(ssh-user) "sma")))
(if host-config
(let ((hostname (assoc-ref host-config 'hostname)))
`((hostname . ,hostname)
(user . ,ssh-user)
(ssh-user . ,ssh-user)
(identity-file . "~/.ssh/id_ed25519_admin")))
#f)))