[modules/docker] Add basic docker list module

README.md

@@ -170,6 +170,7 @@ Modules and commandline utilities are only required for modules, the core itself
 * dbus (for the module 'spotify')
 * i3ipc (for the module 'title')
 * pacman-contrib (for module 'arch-update')
+* docker (for the module 'docker_ps')
 
 # Required commandline utilities
 

bumblebee/modules/docker_ps.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+
+"""Displays the number of docker containers running
+
+Requires the following python packages:
+    * docker
+
+"""
+
+try:
+    import docker
+except ImportError:
+    pass
+
+from requests.exceptions import ConnectionError
+
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        widget = bumblebee.output.Widget(full_text=self.status)
+        super(Module, self).__init__(engine, config, widget)
+        self._status = self.status
+
+    def update(self, widgets):
+        self._status = self.status
+
+    def status(self, _):
+        cli = docker.DockerClient(base_url='unix://var/run/docker.sock')
+        try:
+            cli.ping()
+        except ConnectionError:
+            return "Daemon off"
+        return "OK - {}".format(len(cli.containers.list(filters={'status': "running"})))

themes/icons/ascii.json

@@ -60,6 +60,9 @@
 	"redshift": {
 		"day": { "prefix": "day" }, "night": { "prefix": "night" }, "transition": { "prefix": "trans" }
 	},
+	"docker_ps": {
+		"prefix": "containers"
+	},
 	"sensors": {
 		"prefix": "sensors"
 	},

themes/icons/awesome-fonts.json

@@ -91,13 +91,20 @@
 		"estimate": {	"prefix": ""  }
 	},
 	"caffeine": {
-		"activated": {"prefix": " " }, "deactivated": { "prefix": " " }
+		"activated": {"prefix": " " },
+		"deactivated": { "prefix": " " }
 	},
 	"xrandr": {
-		"on": { "prefix": " "}, "off": { "prefix": " " }
+		"on": { "prefix": " "},
+		"off": { "prefix": " " }
 	},
 	"redshift": {
-		"day": { "prefix": "" }, "night": { "prefix": "" }, "transition": { "prefix": "" }
+		"day": { "prefix": "" },
+		"night": { "prefix": "" },
+		"transition": { "prefix": "" }
+	},
+	"docker_ps": {
+		"prefix": ""
 	},
     "sensors": {
         "prefix": ""
@@ -143,6 +150,8 @@
        "prefix": "  "
     },
     "progress": {
-      "copying": { "prefix": "" }
+       "copying": {
+		   "prefix": ""
+		}
     }
 }