Tools: add args to secret generation tasks

Taskfile.yml

@@ -55,16 +55,24 @@ tasks:
         validate-config --config /data/{{.DEST_FILE}}      
 
   authelia-gen-random-string:
+    summary: |
+      Generate random string.      
+      Usage example: 
+        task authelia-gen-random-string LEN=64
+    vars:
+      LEN: '{{ .LEN | default 10 }}'
     cmds:
       - >
         {{.AUTHELIA_DOCKER}}
-        crypto rand --length 32 --charset alphanumeric
+        crypto rand --length {{.LEN}} --charset alphanumeric
 
   authelia-gen-secret-and-hash:
+    vars:
+      LEN: '{{ .LEN | default 72 }}'
     cmds:
       - >
         {{.AUTHELIA_DOCKER}}
-        crypto hash generate pbkdf2 --variant sha512 --random --random.length 72 --random.charset rfc3986
+        crypto hash generate pbkdf2 --variant sha512 --random --random.length {{.LEN}} --random.charset rfc3986
 
   format-py-files:
     cmds: