glusterd/cli changes for distributed geo-rep

Commands:
gluster system:: execute gsec_create
gluster volume geo-rep <master> <slave-url> create [push-pem] [force]
gluster volume geo-rep <master> <slave-url> start [force]
gluster volume geo-rep <master> <slave-url> stop [force]
gluster volume geo-rep <master> <slave-url> delete
gluster volume geo-rep <master> <slave-url> config
gluster volume geo-rep <master> <slave-url> status

The geo-replication is distributed. The session will be created, and
gsyncd will be spawned on all relevant nodes, instead of only one
node.

geo-rep: Collecting status detail related data

Added persistent store for saving information about
TotalFilesSynced, TotalSyncTime, TotalBytesSynced

Changes in the status information in socket:
Existing(Ex):
FilesSynced=2;BytesSynced=2507;Uptime=00:26:01;

New(Ex):
FilesSynced=2;BytesSynced=2507;Uptime=00:26:01;SyncTime=0.69978;
TotalSyncTime=2.890044;TotalFilesSynced=6;TotalBytesSynced=143640;

Persistent details stored in
/var/lib/glusterd/geo-replication/${mastervol}/${eSlave}-detail.status

Change-Id: I1db7fc13ffca2e415c05200b0109b1254067f111
BUG: 847839
Original Author: Avra Sengupta <asengupt@redhat.com>
Original Author: Venky Shankar <vshankar@redhat.com>
Original Author: Aravinda VK <avishwan@redhat.com>
Original Author: Amar Tumballi <amarts@redhat.com>
Original Author: Csaba Henk <csaba@redhat.com>
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/5132
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>

4 files changed, 15 insertions, 9 deletions

diff --git a/geo-replication/src/Makefile.am b/geo-replication/src/Makefile.am
index 6feeda8e68c..324d8869f8b 100644
--- a/geo-replication/src/Makefile.am
+++ b/geo-replication/src/Makefile.am
@@ -3,9 +3,9 @@ gsyncddir = $(libexecdir)/glusterfs
 
 gsyncd_SCRIPTS = gverify.sh peer_add_secret_pub peer_gsec_create
 
-# peer_gsec_create is not added to EXTRA_DIST as it's derived
-# from a .in file
-EXTRA_DIST = gverify.sh peer_add_secret_pub
+# peer_gsec_create and peer_add_secret_pub are not added to
+# EXTRA_DIST as it's derived from a .in file
+EXTRA_DIST = gverify.sh
 
 gsyncd_PROGRAMS = gsyncd
 
diff --git a/geo-replication/src/gsyncd.c b/geo-replication/src/gsyncd.c
index 68446d9ad34..0830e7f9bcc 100644
--- a/geo-replication/src/gsyncd.c
+++ b/geo-replication/src/gsyncd.c
@@ -37,7 +37,7 @@
 
 #define _GLUSTERD_CALLED_ "_GLUSTERD_CALLED_"
 #define _GSYNCD_DISPATCHED_ "_GSYNCD_DISPATCHED_"
-#define GSYNCD_CONF "geo-replication/gsyncd.conf"
+#define GSYNCD_CONF_TEMPLATE "geo-replication/gsyncd_template.conf"
 #define GSYNCD_PY "gsyncd.py"
 #define RSYNC "rsync"
 
@@ -127,11 +127,11 @@ invoke_gsyncd (int argc, char **argv)
                         gluster_workdir_len = len - 1;
 
                 if (gluster_workdir_len) {
-                        if (gluster_workdir_len + 1 + strlen (GSYNCD_CONF) + 1 >
+                        if (gluster_workdir_len + 1 + strlen (GSYNCD_CONF_TEMPLATE) + 1 >
                             PATH_MAX)
                                 goto error;
                         config_file[gluster_workdir_len] = '/';
-                        strcat (config_file, GSYNCD_CONF);
+                        strcat (config_file, GSYNCD_CONF_TEMPLATE);
                 } else
                         goto error;
 
diff --git a/geo-replication/src/peer_add_secret_pub b/geo-replication/src/peer_add_secret_pub
deleted file mode 100644
index 1ce040d4419..00000000000
--- a/geo-replication/src/peer_add_secret_pub
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-cat $1 >> ~/.ssh/authorized_keys
diff --git a/geo-replication/src/peer_add_secret_pub.in b/geo-replication/src/peer_add_secret_pub.in
new file mode 100644
index 00000000000..c036cf33416
--- /dev/null
+++ b/geo-replication/src/peer_add_secret_pub.in
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [ ! -d ~/.ssh ]; then
+        mkdir ~/.ssh;
+        chmod 700 ~/.ssh
+        chown root:root ~/.ssh
+fi
+
+cat "$GLUSTERD_WORKING_DIR"/geo-replication/common_secret.pem.pub >> ~/.ssh/authorized_keys