From: Richard W.M. Jones <rjones@redhat.com>
Date: Sat, 21 Mar 2015 22:28:48 +0000 (+0000)
Subject: Implement 'mclu destroy' command.
X-Git-Url: http://git.annexia.org/?a=commitdiff_plain;h=e9fb416793079336c60dd0143df10791f69eaf86;p=mclu.git

Implement 'mclu destroy' command.
---

diff --git a/Makefile.am b/Makefile.am
index a3964ef..213df2d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -29,6 +29,7 @@ SOURCES_MLI = \
 	mclu_boot.mli \
 	mclu_conf.mli \
 	mclu_console.mli \
+	mclu_destroy.mli \
 	mclu_list.mli \
 	mclu_onoff.mli \
 	mclu_status.mli \
@@ -47,6 +48,7 @@ SOURCES_ML = \
 	mclu_status.ml \
 	mclu_onoff.ml \
 	mclu_boot.ml \
+	mclu_destroy.ml \
 	mclu_console.ml \
 	mclu.ml
 
diff --git a/mclu.ml b/mclu.ml
index 2b34dac..af54c5b 100644
--- a/mclu.ml
+++ b/mclu.ml
@@ -55,6 +55,9 @@ let anon_fun, get_anon_args =
       | "console" ->
         speclist := Mclu_console.get_arg_speclist ();
         subcommand_run := Mclu_console.run
+      | "destroy" ->
+        speclist := Mclu_destroy.get_arg_speclist ();
+        subcommand_run := Mclu_destroy.run
       | "list" ->
         speclist := Mclu_list.get_arg_speclist ();
         subcommand_run := Mclu_list.run
diff --git a/mclu.pod b/mclu.pod
index 9cfcf8f..e5b028f 100644
--- a/mclu.pod
+++ b/mclu.pod
@@ -82,6 +82,12 @@ is the number of physical CPUs, but not more than 4.
 
 Connect to the serial console console of the named guest.
 
+=item B<mclu destroy [host:]guest>
+
+Destroy the named guest.
+
+Note this permanently deletes the guest and its data.
+
 =item B<mclu list [--active] [--all] [--templates]>
 
 List all active (running) guests and/or templates.  You can use
diff --git a/mclu_destroy.ml b/mclu_destroy.ml
new file mode 100644
index 0000000..550d3d4
--- /dev/null
+++ b/mclu_destroy.ml
@@ -0,0 +1,69 @@
+(* mclu: Mini Cloud
+ * Copyright (C) 2014-2015 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *)
+
+(* Implement 'mclu destroy'. *)
+
+open Printf
+
+open Utils
+
+let get_arg_speclist () = []
+
+let destroy ~verbose ?host name =
+  let nodes = Mclu_conf.nodes () in
+  let node =
+    match host with
+    | Some host ->
+      (try List.find (fun n -> host = n.Mclu_conf.hostname) nodes
+       with Not_found ->
+         eprintf "mclu: host '%s' not found\n" host;
+         exit 1)
+    | None ->
+      (* No 'host:' prefix given, so we need to find the host. *)
+      let guests = Mclu_list.active_guests ~verbose ~nodes () in
+      let node, _ =
+        try
+          List.find (
+            fun (node, doms) ->
+              List.exists (
+                fun dom ->
+                  name = dom.Mclu_list.dom_name
+              ) doms
+          ) guests
+        with
+          Not_found ->
+            eprintf "mclu: guest '%s' not found\n" name;
+            exit 1 in
+      node in
+
+  let uri = node.Mclu_conf.libvirt_uri in
+
+  let cmd = sprintf "virsh -c %s destroy %s" (quote uri) (quote name) in
+  if verbose then printf "%s\n%!" cmd;
+  if Sys.command cmd <> 0 then (
+    eprintf "mclu: %s: command failed\n" cmd;
+    exit 1
+  )
+
+let run ~verbose = function
+  | [ name ] ->
+    let host, name = name_parse name in
+    destroy ~verbose ?host name
+  | _ ->
+    eprintf "Usage: mclu destroy <[host:]name>\n";
+    exit 1
diff --git a/mclu_destroy.mli b/mclu_destroy.mli
new file mode 100644
index 0000000..46ae35e
--- /dev/null
+++ b/mclu_destroy.mli
@@ -0,0 +1,21 @@
+(* mclu: Mini Cloud
+ * Copyright (C) 2014-2015 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *)
+
+val get_arg_speclist : unit -> (Arg.key * Arg.spec * Arg.doc) list
+
+val run : verbose:bool -> string list -> unit