fix typo in comments and log

Signed-off-by: allencloud <allen.sun@daocloud.io>

libnetwork/controller.go

@@ -97,7 +97,7 @@ type NetworkController interface {
 	// Sandboxes returns the list of Sandbox(s) managed by this controller.
 	Sandboxes() []Sandbox
 
-	// WlakSandboxes uses the provided function to walk the Sandbox(s) managed by this controller.
+	// WalkSandboxes uses the provided function to walk the Sandbox(s) managed by this controller.
 	WalkSandboxes(walker SandboxWalker)
 
 	// SandboxByID returns the Sandbox which has the passed id. If not found, a types.NotFoundError is returned.

libnetwork/default_gateway.go

@@ -14,7 +14,7 @@ const (
 var procGwNetwork = make(chan (bool), 1)
 
 /*
-   libnetwork creates a bridge network "docker_gw_bridge" for provding
+   libnetwork creates a bridge network "docker_gw_bridge" for providing
    default gateway for the containers if none of the container's endpoints
    have GW set by the driver. ICC is set to false for the GW_bridge network.
 
@@ -29,7 +29,7 @@ var procGwNetwork = make(chan (bool), 1)
 
 func (sb *sandbox) setupDefaultGW() error {
 
-	// check if the conitainer already has a GW endpoint
+	// check if the container already has a GW endpoint
 	if ep := sb.getEndpointInGWNetwork(); ep != nil {
 		return nil
 	}

libnetwork/drivers/bridge/bridge.go

@@ -564,7 +564,7 @@ func (d *driver) CreateNetwork(id string, option map[string]interface{}, nInfo d
 	}
 	d.Unlock()
 
-	// Parse and validate the config. It should not conflict with existing networks' config
+	// Parse and validate the config. It should not be conflict with existing networks' config
 	config, err := parseNetworkOptions(id, option)
 	if err != nil {
 		return err

libnetwork/network.go

@@ -1206,7 +1206,7 @@ func (n *network) requestPoolHelper(ipam ipamapi.Ipam, addressSpace, preferredPo
 		}()
 
 		// If this is a preferred pool request and the network
-		// is local scope and there is a overlap, we fail the
+		// is local scope and there is an overlap, we fail the
 		// network creation right here. The pool will be
 		// released in the defer.
 		if preferredPool != "" {

libnetwork/service_linux.go

@@ -316,7 +316,7 @@ func (sb *sandbox) addLBBackend(ip, vip net.IP, fwMark uint32, ingressPorts []*P
 
 	i, err := ipvs.New(sb.Key())
 	if err != nil {
-		logrus.Errorf("Failed to create a ipvs handle for sbox %s: %v", sb.Key(), err)
+		logrus.Errorf("Failed to create an ipvs handle for sbox %s: %v", sb.Key(), err)
 		return
 	}
 	defer i.Close()
@@ -371,7 +371,7 @@ func (sb *sandbox) rmLBBackend(ip, vip net.IP, fwMark uint32, ingressPorts []*Po
 
 	i, err := ipvs.New(sb.Key())
 	if err != nil {
-		logrus.Errorf("Failed to create a ipvs handle for sbox %s: %v", sb.Key(), err)
+		logrus.Errorf("Failed to create an ipvs handle for sbox %s: %v", sb.Key(), err)
 		return
 	}
 	defer i.Close()