Merge branch 'download' into 'master'

QEMU plugin: download buildroot images if not provided by the user

See merge request !51

1 files changed, 21 insertions, 3 deletions

diff --git a/rumba/testbeds/qemu.py b/rumba/testbeds/qemu.py
index a916525..b7ebef9 100644
--- a/rumba/testbeds/qemu.py
+++ b/rumba/testbeds/qemu.py
@@ -26,24 +26,25 @@ import os
 import rumba.model as mod
 import rumba.log as log
 import rumba.ssh_support as ssh_support
+import wget
 
 
 logger = log.get_logger(__name__)
 
 
 class Testbed(mod.Testbed):
-    def __init__(self, exp_name, bzimage, initramfs, proj_name="ARCFIRE",
+    def __init__(self, exp_name, bzimage=None, initramfs=None, proj_name="ARCFIRE",
                  password="root", username="root",
                  use_vhost=True, qemu_logs_dir=None):
         mod.Testbed.__init__(self, exp_name, username, password, proj_name)
         self.vms = {}
         self.shims = []
-        self.bzimage = bzimage
-        self.initramfs = initramfs
         self.vhost = use_vhost
         self.qemu_logs_dir = os.getcwd() if qemu_logs_dir is None \
             else qemu_logs_dir
         self.boot_processes = []
+        self.bzimage = bzimage
+        self.initramfs = initramfs
 
     @staticmethod
     def _run_command_chain(commands, results_queue,
@@ -114,6 +115,23 @@ class Testbed(mod.Testbed):
                 raise Exception('Not authenticated')
 
         logger.info("swapping in")
+
+        # Download the proper buildroot images, if the user did not specify
+        # local images
+        url_prefix = "https://bitbucket.org/vmaffione/rina-images/downloads/"
+        if not self.bzimage:
+            self.bzimage = '%s.bzImage' % (experiment.prototype_name())
+            if not os.path.exists(self.bzimage):
+                logger.info("Downloading %s" % (url_prefix + self.bzimage))
+                wget.download(url_prefix + self.bzimage)
+                print("\n")
+        if not self.initramfs:
+            self.initramfs = '%s.rootfs.cpio' % (experiment.prototype_name())
+            if not os.path.exists(self.initramfs):
+                logger.info("Downloading %s" % (url_prefix + self.initramfs))
+                wget.download(url_prefix + self.initramfs)
+                print("\n")
+
         logger.info('Setting up interfaces.')
 
         # Building bridges and taps