Add hide filter to Docker list (first part of #1748)

conf/glances.conf

@@ -327,6 +327,8 @@ port_default_gateway=True
 
 [docker]
 disable=False
+# Hide some containers (comma separeted list)
+#hide=telegraf
 # Define the maximum docker size name (default is 20 chars)
 max_name_size=20
 #cpu_careful=50

glances/plugins/glances_docker.py

@@ -210,6 +210,10 @@ class Plugin(GlancesPlugin):
             # Get stats for all containers
             stats['containers'] = []
             for container in containers:
+                # Do not take hide container into account
+                if self.is_hide(nativestr(container.name)):
+                    continue
+
                 # Init the stats for the current container
                 container_stats = {}
                 # The key is the container name and not the Id