+ logger.log("creating /etc/slicename file in %s" % os.path.join(containerDir,'etc/slicename'))
+ try:
+ file(os.path.join(containerDir,'etc/slicename'), 'w').write(name)
+ except:
+ logger.log_exc("exception while creating /etc/slicename")
+
+ try:
+ file(os.path.join(containerDir,'etc/slicefamily'), 'w').write(vref)
+ except:
+ logger.log_exc("exception while creating /etc/slicefamily")
+
+ uid = None
+ try:
+ uid = getpwnam(name).pw_uid
+ except KeyError:
+ # keyerror will happen if user id was not created successfully
+ logger.log_exc("exception while getting user id")
+
+ if uid is not None:
+ logger.log("uid is %d" % uid)
+ command = ['mkdir', '%s/home/%s' % (containerDir, name)]
+ logger.log_call(command, timeout=10)
+ command = ['chown', name, '%s/home/%s' % (containerDir, name)]
+ logger.log_call(command, timeout=10)
+ etcpasswd = os.path.join(containerDir, 'etc/passwd')
+ etcgroup = os.path.join(containerDir, 'etc/group')
+ if os.path.exists(etcpasswd):
+ # create all accounts with gid=1001 - i.e. 'slices' like it is in the root context
+ slices_gid=1001
+ logger.log("adding user %(name)s id %(uid)d gid %(slices_gid)d to %(etcpasswd)s" % (locals()))
+ try:
+ file(etcpasswd,'a').write("%(name)s:x:%(uid)d:%(slices_gid)d::/home/%(name)s:/bin/bash\n" % locals())
+ except:
+ logger.log_exc("exception while updating %s"%etcpasswd)
+ logger.log("adding group slices with gid %(slices_gid)d to %(etcgroup)s"%locals())
+ try:
+ file(etcgroup,'a').write("slices:x:%(slices_gid)d\n"%locals())
+ except:
+ logger.log_exc("exception while updating %s"%etcgroup)
+ sudoers = os.path.join(containerDir, 'etc/sudoers')
+ if os.path.exists(sudoers):
+ try:
+ file(sudoers,'a').write("%s ALL=(ALL) NOPASSWD: ALL\n" % name)
+ except:
+ logger.log_exc("exception while updating /etc/sudoers")
+
+ # customizations for the user environment - root or slice uid
+ # we save the whole business in /etc/planetlab.profile
+ # and source this file for both root and the slice uid's .profile
+ # prompt for slice owner, + LD_PRELOAD for transparently wrap bind
+ pl_profile=os.path.join(containerDir,"etc/planetlab.profile")
+ ld_preload_text="""# by default, we define this setting so that calls to bind(2),
+# when invoked on 0.0.0.0, get transparently redirected to the public interface of this node
+# see https://svn.planet-lab.org/wiki/LxcPortForwarding"""
+ usrmove_path_text="""# VM's before Features/UsrMove need /bin and /sbin in their PATH"""
+ usrmove_path_code="""
+pathmunge () {
+ if ! echo $PATH | /bin/egrep -q "(^|:)$1($|:)" ; then
+ if [ "$2" = "after" ] ; then
+ PATH=$PATH:$1
+ else
+ PATH=$1:$PATH
+ fi
+ fi
+}
+pathmunge /bin after
+pathmunge /sbin after
+unset pathmunge
+"""
+ with open(pl_profile,'w') as f:
+ f.write("export PS1='%s@\H \$ '\n"%(name))
+ f.write("%s\n"%ld_preload_text)
+ f.write("export LD_PRELOAD=/etc/planetlab/lib/bind_public.so\n")
+ f.write("%s\n"%usrmove_path_text)
+ f.write("%s\n"%usrmove_path_code)
+
+ # make sure this file is sourced from both root's and slice's .profile
+ enforced_line = "[ -f /etc/planetlab.profile ] && source /etc/planetlab.profile\n"
+ for path in [ 'root/.profile', 'home/%s/.profile'%name ]:
+ from_root=os.path.join(containerDir,path)
+ # if dir is not yet existing let's forget it for now
+ if not os.path.isdir(os.path.dirname(from_root)): continue
+ found=False
+ try:
+ contents=file(from_root).readlines()
+ for content in contents:
+ if content==enforced_line: found=True
+ except IOError: pass
+ if not found:
+ with open(from_root,"a") as user_profile:
+ user_profile.write(enforced_line)
+