[ovs-dev] [v3 09/10] ovs-dev.py: add --user and -u option

Ansis Atteka aatteka at nicira.com
Fri Sep 18 20:09:49 UTC 2015


On Mon, Sep 14, 2015 at 3:54 PM, Andy Zhou <azhou at nicira.com> wrote:
> ovs-dev.py "run" command now accepts the "--user" option for runing
> all ovs daemons as "user". The argument can be speicfied in
> "user[:group]" format.
>
> '-u' is an short hand option that, if ovs-dev.py is lauch as a non-root
s/an/a
s/lauch/launched
> user, the current user and group will be used as if they are supplied
s/the/then
> by the --user option.
>
> "./ovs-dev.py run -u" can now launch ovsdb-server and ovs-vswitchd as
> current user and group.
>
> Signed-off-by: Andy Zhou <azhou at nicira.com>
> ---
>  utilities/ovs-dev.py | 30 +++++++++++++++++++++++-------
>  1 file changed, 23 insertions(+), 7 deletions(-)
>
> diff --git a/utilities/ovs-dev.py b/utilities/ovs-dev.py
> index 9376020..45fa38b 100755
> --- a/utilities/ovs-dev.py
> +++ b/utilities/ovs-dev.py
> @@ -55,9 +55,16 @@ def uname():
>      return _sh("uname", "-r", capture=True)[0].strip()
>
>
> -def sudo():
> +def sudo(run_as_me):
>      if os.geteuid() != 0:
> -        _sh(" ".join(["sudo"] + sys.argv), check=True)
> +        opt = []
> +        if (run_as_me):
> +            user = subprocess.check_output(["id", "-un"]).strip()
> +            group = subprocess.check_output(["id", "-gn"]).strip()
> +            opt=["--user", user + ":" + group]
spacing around =
> +            sys.argv.remove("-u")
Do you need to remove("-u")  because -u flag is intended solely
consumed by ovs-dev?
> +
> +        _sh(" ".join(["sudo"] + sys.argv + opt), check=True)
>          sys.exit(0)
>
>  def conf():
> @@ -191,7 +198,7 @@ commands.append(tag)
>
>
>  def kill():
> -    sudo()
> +    sudo(False)
>      for proc in ["ovs-vswitchd", "ovsdb-server"]:
>          if os.path.exists("%s/run/openvswitch/%s.pid" % (RUNDIR, proc)):
>              _sh("ovs-appctl", "-t", proc, "exit", check=False)
> @@ -201,7 +208,7 @@ commands.append(kill)
>
>
>  def reset():
> -    sudo()
> +    sudo(False)
>      kill()
>      if os.path.exists(RUNDIR):
>          shutil.rmtree(RUNDIR)
> @@ -210,7 +217,7 @@ def reset():
>  commands.append(reset)
>
>  def run():
> -    sudo()
> +    sudo(options.as_me)
>      kill()
>      for d in ["log", "run"]:
>          d = "%s/%s" % (RUNDIR, d)
> @@ -231,6 +238,11 @@ def run():
>
>      opts = ["--pidfile", "--log-file"]
>
> +    _sh("chown", options.user, "-R", RUNDIR);
> +
> +    if (options.user != "root:root"):
> +        opts = ["--user", options.user] + opts
> +
>      _sh(*(["ovsdb-server",
>             "--remote=punix:%s/run/db.sock" % RUNDIR,
>             "--remote=db:Open_vSwitch,Open_vSwitch,manager_options",
> @@ -274,7 +286,7 @@ def modinst():
>          print "Missing modules directory.  Is this a Linux system?"
>          sys.exit(1)
>
> -    sudo()
> +    sudo(False)
>      try:
>          _sh("rmmod", "openvswitch")
>      except subprocess.CalledProcessError, e:
> @@ -315,7 +327,7 @@ Basic Configuration:
>
>      # First install the basic requirements needed to build Open vSwitch.
>      sudo apt-get install git build-essential libtool autoconf pkg-config \\
> -            libssl-dev gdb linux-headers-`uname -r`
> +            libssl-dev gdb libcap-ng linux-headers-`uname -r`
>
>      # Next clone the Open vSwitch source.
>      git clone https://github.com/openvswitch/ovs.git %(ovs)s
> @@ -414,6 +426,10 @@ def main():
>                       help="run ovs-vswitchd with dpdk subopts (ended by --)")
>      group.add_option("--clang", dest="clang", action="store_true",
>                       help="Use binaries built by clang")
> +    group.add_option("--user", dest="user", action="store", default="root",
> +                     help="run all daemons as a non root user")
> +    group.add_option("-u", dest="as_me", action="store_true",
> +                     help="set --user to the current user")
Are -u and --user flags conflicting with each other if both are set at
the same time? I mean does -u supersedes --user even if it was set?

>
>      parser.add_option_group(group)
>
> --
> 1.9.1
>
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