CLI : GLobal option for NFS-Ganesha

A new global CLI option has been introduced for NFS-Ganesha.
gluster features.ganesha enable/disable.
This option is persistent and shall be inherited
by new volumes created after this option is set.

gluster features.ganesha enable

It carries out the following functions:
1. Disables gluster-nfs across the cluster
2. Starts NFS-Ganesha server on a subset of nodes and exports  '/'.
3. Creates the HA cluster for NFS-Ganesha.
4. Writes the option into the global config file.

gluster features.ganesha disable

1. Stops NFS-Ganesha server.
2. Tears down the HA cluster for NFS-Ganesha

With this change the older volume set
options with keys "nfs-ganesha.host"
and "nfs-ganesha.enable" will no longer
be supported. This commit has only has the
CLI related changes. Another patch will
be submitted to support this feature entirely.

Change-Id: Ie4b66a16c23b33b795738654b9a68f8e2c34efe3
BUG: 1188184
Signed-off-by: Meghana Madhusudhan <mmadhusu@redhat.com>
Reviewed-on: http://review.gluster.org/9538
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/cli/src/cli-rpc-ops.c b/cli/src/cli-rpc-ops.c
index a02761d5e6e..00ea6633bb6 100644
--- a/cli/src/cli-rpc-ops.c
+++ b/cli/src/cli-rpc-ops.c
@@ -1698,6 +1698,61 @@ out:
         return ret;
 }
 
+int
+gf_cli_ganesha_cbk (struct rpc_req *req, struct iovec *iov,
+                        int count, void *myframe)
+{
+        gf_cli_rsp           rsp   = {0,};
+        int                  ret   = -1;
+        dict_t               *dict = NULL;
+        char                 *help_str = NULL;
+        char                 msg[1024] = {0,};
+        char                 tmp_str[512] = {0,};
+
+        if (-1 == req->rpc_status) {
+                goto out;
+        }
+
+        ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gf_cli_rsp);
+        if (ret < 0) {
+                gf_log (((call_frame_t *) myframe)->this->name, GF_LOG_ERROR,
+                        "Failed to decode xdr response");
+                goto out;
+        }
+
+        gf_log ("cli", GF_LOG_DEBUG, "Received resp to ganesha");
+
+        dict = dict_new ();
+
+        if (!dict) {
+                ret = -1;
+                goto out;
+        }
+
+        ret = dict_unserialize (rsp.dict.dict_val, rsp.dict.dict_len, &dict);
+        if (ret)
+                goto out;
+
+        if (rsp.op_ret) {
+                if (strcmp (rsp.op_errstr, ""))
+                        cli_err ("ganesha enable: failed: %s", rsp.op_errstr);
+                else
+                        cli_err ("ganesha enable: failed");
+        }
+
+        else {
+                cli_out("ganesha enable : success ");
+        }
+
+        ret = rsp.op_ret;
+
+out:
+        if (dict)
+                dict_unref (dict);
+        cli_cmd_broadcast_response (ret);
+        return ret;
+}
+
 char *
 is_server_debug_xlator (void *myframe)
 {
@@ -3586,6 +3641,30 @@ out:
 }
 
 int32_t
+gf_cli_ganesha (call_frame_t *frame, xlator_t *this, void *data)
+{
+        gf_cli_req              req =  { {0,} } ;
+        int                     ret = 0;
+        dict_t                  *dict = NULL;
+
+        if (!frame || !this ||  !data) {
+                ret = -1;
+                goto out;
+        }
+
+        dict = data;
+
+        ret = cli_to_glusterd (&req, frame, gf_cli_ganesha_cbk,
+                               (xdrproc_t) xdr_gf_cli_req, dict,
+                               GLUSTER_CLI_GANESHA, this, cli_rpc_prog,
+                               NULL);
+out:
+        gf_log ("cli", GF_LOG_DEBUG, "Returning %d", ret);
+
+        return ret;
+}
+
+int32_t
 gf_cli_set_volume (call_frame_t *frame, xlator_t *this,
                          void *data)
 {
@@ -9770,6 +9849,7 @@ struct rpc_clnt_procedure gluster_cli_actors[GLUSTER_CLI_MAXVALUE] = {
         [GLUSTER_CLI_SYS_EXEC]         = {"SYS_EXEC", gf_cli_sys_exec},
         [GLUSTER_CLI_SNAP]             = {"SNAP", gf_cli_snapshot},
         [GLUSTER_CLI_BARRIER_VOLUME]   = {"BARRIER VOLUME", gf_cli_barrier_volume},
+        [GLUSTER_CLI_GANESHA]          = {"GANESHA", gf_cli_ganesha},
         [GLUSTER_CLI_GET_VOL_OPT]      = {"GET_VOL_OPT", gf_cli_get_vol_opt},
 };