fix: Install Nginx before trying to create a webserver

fix: Nginx depends on LetsEncrypt/certbot

src/System/Serverman/Actions/Install.hs

@@ -9,19 +9,26 @@ module System.Serverman.Actions.Install (installService) where
   import System.Process
   import Control.Concurrent.Async
   import Control.Monad.Free
+  import Control.Monad
 
   class Installable a where
-    dependencies :: a -> [String]
+    dependencies :: a -> [a]
     package :: a -> OS -> String
 
   instance Installable Service where
+    dependencies NGINX = [LetsEncrypt]
     dependencies _ = []
 
     package NGINX _ = "nginx"
     package MySQL _ = "mysql"
 
+    package LetsEncrypt Arch = "certbot"
+    package LetsEncrypt _ = "letsencrypt"
+
   installService :: Service -> OS -> IO ()
   installService service os = do
+    forM_ (dependencies service) (`installService` os) 
+
     let base = case os of
           Arch -> ("pacman", ["-S", "--noconfirm", "--quiet"])
           Debian -> ("apt-get", ["install", "-y"])
@@ -29,13 +36,11 @@ module System.Serverman.Actions.Install (installService) where
           _ -> ("echo", ["Unknown operating system"])
         pkg = package service os
 
-
     process <- async $ do
       result <- execute (fst base) (snd base ++ [pkg]) "" True
 
       case result of
         Left err -> return ()
-        Right stdout -> do
-          putStrLn stdout
+        Right _ -> do
           putStrLn $ "installed " ++ show service ++ "."
     wait process

src/System/Serverman/Actions/Nginx.hs

@@ -13,6 +13,7 @@ module System.Serverman.Actions.Nginx (nginx) where
   import Control.Concurrent.Async
   import Control.Monad
   import Control.Monad.Free
+  import Data.List
 
   nginx :: ServerParams -> IO ()
   nginx params@(ServerParams { ssl, serverService, domain, directory, serverType }) = 
@@ -40,15 +41,8 @@ module System.Serverman.Actions.Nginx (nginx) where
       when ssl $ do
         case serverType of
           Static -> do
-            letsencrypt <- async $ do
-              result <- execute "certbot" ["certonly", "--webroot", "--webroot-path", directory, "-d", domain] "" True
-              case result of
-                Left _ -> return ()
-                Right _ -> do
-                  putStrLn $ "created a certificate for " ++ domain
-                  writeFile path (show params)
-                  wait =<< restart
-                  
+            letsencrypt <- async $ createCert path "letsencrypt"
+              
             wait letsencrypt
           _ -> do
             putStrLn $ "you should use letsencrypt to create a certificate for your domain"
@@ -66,3 +60,15 @@ module System.Serverman.Actions.Nginx (nginx) where
           Right _ ->
             putStrLn $ "restarted " ++ show serverService
 
+      createCert path cmd = do
+        result <- execute cmd ["certonly", "--webroot", "--webroot-path", directory, "-d", domain] "" False
+        case result of
+          Left _ -> if cmd == "letsencrypt" then createCert path "certbot" else return ()
+          Right stdout -> do
+            putStrLn stdout
+
+            when (not ("error" `isInfixOf` stdout)) $ do
+              writeFile path (show params)
+              wait =<< restart
+
+

src/System/Serverman/Services.hs

@@ -3,6 +3,7 @@ module System.Serverman.Services ( Service(..)
 
   data Service = NGINX
                | MySQL
+               | LetsEncrypt
                  deriving (Eq, Show)
 
   class Configurable a where
@@ -16,3 +17,4 @@ module System.Serverman.Services ( Service(..)
     readsPrec _ service
           | service == "nginx" = [(NGINX, [])]
           | service == "mysql" = [(MySQL, [])]
+          | service == "letsencrypt" = [(LetsEncrypt, [])]

src/System/Term.hs

@@ -91,14 +91,16 @@ module System.Term ( initialize ) where
                                 , S.serverType    = serverType
                                 , S.serverService = serviceName
                                 }
-    S.run $ S.newServer params
+    S.run $ S.detectOS >>= (S.install serviceName) >> S.newServer params
 
   manualInstall (InstallParams { iService }) = do
     S.run $ S.detectOS >>= (S.install (read iService))
 
   databaseSetup (DatabaseParams { databaseName, dService }) = do
+    let serviceName = read dService
+
     let params = S.DatabaseParams { S.database = databaseName
-                                  , S.databaseService = read dService }
+                                  , S.databaseService = serviceName }
 
-    S.run $ S.newDatabase params
+    S.run $ S.detectOS >>= (S.install serviceName) >> S.newDatabase params