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Posted to dev@zookeeper.apache.org by Warren Turkal <wt...@ooyala.com> on 2012/07/30 20:04:52 UTC
Accessing ZK nodes from pluggable auth module
Hello ZK devs,
I'm sure this is a really newbie type question, but I couldn't find docs on
how to do this.
I am researching making a pluggable auth module. Is there any way to access
data in zookeeper nodes from a pluggable auth module? I'd like to store the
auth data within a collection of zookeeper nodes.
Also, I've been unable to send message to this list from another email
address. I keep getting bounces claiming that the message is spammy. Is
anyone else getting rejected similarly?
Thanks,
wt
--
*Warren Turkal*
Site Reliability Engineer |
wt@ooyala.com | 650-961-3400
www.ooyala.com | blog <http://www.ooyala.com/blog> |
@ooyala<http://www.twitter.com/ooyala>
Re: Accessing ZK nodes from pluggable auth module
Posted by Warren Turkal <wt...@ooyala.com>.
Ok, so I tried to do some things. Of course, just creating a DataTree
instance does nothing. Would it be safe to create a new instance of
ZKDatabase? Or is there some magical way to get the existing ZKDatabase
instance?
Thanks,
wt
On Mon, Jul 30, 2012 at 11:04 AM, Warren Turkal <wt...@ooyala.com> wrote:
> Hello ZK devs,
>
> I'm sure this is a really newbie type question, but I couldn't find docs
> on how to do this.
>
> I am researching making a pluggable auth module. Is there any way to
> access data in zookeeper nodes from a pluggable auth module? I'd like to
> store the auth data within a collection of zookeeper nodes.
>
> Also, I've been unable to send message to this list from another email
> address. I keep getting bounces claiming that the message is spammy. Is
> anyone else getting rejected similarly?
>
> Thanks,
> wt
> --
> *Warren Turkal*
> Site Reliability Engineer |
> wt@ooyala.com | 650-961-3400
> www.ooyala.com | blog <http://www.ooyala.com/blog> | @ooyala<http://www.twitter.com/ooyala>
>
--
*Warren Turkal*
Site Reliability Engineer |
wt@ooyala.com | 650-961-3400
www.ooyala.com | blog <http://www.ooyala.com/blog> |
@ooyala<http://www.twitter.com/ooyala>
Re: Accessing ZK nodes from pluggable auth module
Posted by Warren Turkal <wt...@penguintechs.org>.
I just filed an issue to track this:
https://issues.apache.org/jira/browse/ZOOKEEPER-1525
wt
On Thu, Aug 2, 2012 at 1:19 PM, Warren Turkal <wt...@penguintechs.org> wrote:
> Ok, so I plumbed a ZKDatabase into the auth plugins. I do this by adding a
> setter to the AuthenticationProvider interface that is called after
> construction so that I can use the current method to construct the
> AuthProviders in the ProviderRegistry. I also added a ZooKeeperServer arg
> to both ProviderRegistry.initialize() and ProviderRegistry.getProvider().
> All the places where getProvider is called happened to have a
> ZooKeeperServer object available for the passing. I also added an
> implementation that does nothing for the setter to each of the existing
> plugins.
>
> The cool thing is that I get access to the ZKDatabase object on the
> system. This allows me to drive auth decisions from the ZKDatabase.
>
> Would a patch for this plumbing be interesting in an of itself?
>
> wt
>
>
> On Tue, Jul 31, 2012 at 2:37 PM, Warren Turkal <wt...@ooyala.com> wrote:
>
>> On Tue, Jul 31, 2012 at 2:02 PM, Patrick Hunt <ph...@apache.org> wrote:
>>
>> > On Mon, Jul 30, 2012 at 11:04 AM, Warren Turkal <wt...@ooyala.com> wrote:
>> > > I'm sure this is a really newbie type question, but I couldn't find
>> docs
>> > on
>> > > how to do this.
>> > >
>> > > I am researching making a pluggable auth module. Is there any way to
>> > access
>> > > data in zookeeper nodes from a pluggable auth module? I'd like to
>> store
>> > the
>> > > auth data within a collection of zookeeper nodes.
>> > >
>> >
>> > We don't provide for this. Wouldn't you need auth for those znodes in
>> > order to provide auth? Seems like a circular problem...
>> >
>>
>> The auth can be overridden by other methods just like normally can happen
>> so the auth for these nodes could come from the digest scheme instead of
>> this module. Here's a description of the method I am trying to implement.
>>
>> I want to map a machine (via hostname) to a machine owner. For example,
>> the
>> following nodes would exist in the zookeeper with the following contents:
>>
>> - /authdb/owner_principal_machines/ops-full:
>> u23-r8.region1.localdomain
>> u24-r23.region1.localdomain
>> - /authdb/owner_principal_machines/ops-n00b:
>> u12-r7.region1.localdomain
>> u13-r8.region1.localdomain
>>
>> If the machine u23-r8.region1.localdomain (owned by dbmaster according to
>> the nodes above) connects to zookeeper, I would like it to be able to do
>> the CLI equivalent of "addauth authdb" to authenticate as the dbmaster
>> role.
>>
>> For flexibility, there are also hierarchical roles, which are also
>> represented with nodes. Those nodes would look like the following:
>>
>> - /authdb/principal_children/ops
>> ops-full
>> ops-limited
>> - /authdb/principal_children/ops-app1
>> ops
>> - /authdb/principal_parents/ops-full
>> ops
>> ops-app1
>> - /authdb/principal_parents/ops-limited
>> ops
>> ops-app1
>>
>> Note that each of the nodes is a full expansion so that only one node
>> needs
>> to be consulted when determining a match for an id to an ACL.
>>
>> These particular nodes would indicate that any machines owned by the
>> "ops-full" or "ops-limited" would also match the when the ACL was for the
>> "ops" id as well as their own names.
>>
>> Perhaps open a client connection from the auth provider itself? (i'm
>> > not sure if this would work, I don't think anyone ever tried it)
>> >
>>
>> Is there any way to get the configuration information so that I can get
>> the
>> server names from there, or is there some other way to discover the server
>> names from within the server process so that I don't have to hard code it
>> in some other way?
>>
>>
>> > > Also, I've been unable to send message to this list from another email
>> > > address. I keep getting bounces claiming that the message is spammy.
>> Is
>> > > anyone else getting rejected similarly?
>> >
>> > I haven't heard anything like that. You might check with the Apache
>> > infra team, they manage the mailing lists (outside regular
>> > moderation).
>> >
>>
>> Thanks for the info. I sent a message to the dev-owner@z.a.o alias. Will
>> that go anywhere useful?
>>
>> Thanks,
>> wt
>> --
>> *Warren Turkal*
>> Site Reliability Engineer |
>> wt@ooyala.com | 650-961-3400
>> www.ooyala.com | blog <http://www.ooyala.com/blog> |
>> @ooyala<http://www.twitter.com/ooyala>
>>
>
>
Re: Accessing ZK nodes from pluggable auth module
Posted by Warren Turkal <wt...@penguintechs.org>.
Ok, so I plumbed a ZKDatabase into the auth plugins. I do this by adding a
setter to the AuthenticationProvider interface that is called after
construction so that I can use the current method to construct the
AuthProviders in the ProviderRegistry. I also added a ZooKeeperServer arg
to both ProviderRegistry.initialize() and ProviderRegistry.getProvider().
All the places where getProvider is called happened to have a
ZooKeeperServer object available for the passing. I also added an
implementation that does nothing for the setter to each of the existing
plugins.
The cool thing is that I get access to the ZKDatabase object on the system.
This allows me to drive auth decisions from the ZKDatabase.
Would a patch for this plumbing be interesting in an of itself?
wt
On Tue, Jul 31, 2012 at 2:37 PM, Warren Turkal <wt...@ooyala.com> wrote:
> On Tue, Jul 31, 2012 at 2:02 PM, Patrick Hunt <ph...@apache.org> wrote:
>
> > On Mon, Jul 30, 2012 at 11:04 AM, Warren Turkal <wt...@ooyala.com> wrote:
> > > I'm sure this is a really newbie type question, but I couldn't find
> docs
> > on
> > > how to do this.
> > >
> > > I am researching making a pluggable auth module. Is there any way to
> > access
> > > data in zookeeper nodes from a pluggable auth module? I'd like to store
> > the
> > > auth data within a collection of zookeeper nodes.
> > >
> >
> > We don't provide for this. Wouldn't you need auth for those znodes in
> > order to provide auth? Seems like a circular problem...
> >
>
> The auth can be overridden by other methods just like normally can happen
> so the auth for these nodes could come from the digest scheme instead of
> this module. Here's a description of the method I am trying to implement.
>
> I want to map a machine (via hostname) to a machine owner. For example, the
> following nodes would exist in the zookeeper with the following contents:
>
> - /authdb/owner_principal_machines/ops-full:
> u23-r8.region1.localdomain
> u24-r23.region1.localdomain
> - /authdb/owner_principal_machines/ops-n00b:
> u12-r7.region1.localdomain
> u13-r8.region1.localdomain
>
> If the machine u23-r8.region1.localdomain (owned by dbmaster according to
> the nodes above) connects to zookeeper, I would like it to be able to do
> the CLI equivalent of "addauth authdb" to authenticate as the dbmaster
> role.
>
> For flexibility, there are also hierarchical roles, which are also
> represented with nodes. Those nodes would look like the following:
>
> - /authdb/principal_children/ops
> ops-full
> ops-limited
> - /authdb/principal_children/ops-app1
> ops
> - /authdb/principal_parents/ops-full
> ops
> ops-app1
> - /authdb/principal_parents/ops-limited
> ops
> ops-app1
>
> Note that each of the nodes is a full expansion so that only one node needs
> to be consulted when determining a match for an id to an ACL.
>
> These particular nodes would indicate that any machines owned by the
> "ops-full" or "ops-limited" would also match the when the ACL was for the
> "ops" id as well as their own names.
>
> Perhaps open a client connection from the auth provider itself? (i'm
> > not sure if this would work, I don't think anyone ever tried it)
> >
>
> Is there any way to get the configuration information so that I can get the
> server names from there, or is there some other way to discover the server
> names from within the server process so that I don't have to hard code it
> in some other way?
>
>
> > > Also, I've been unable to send message to this list from another email
> > > address. I keep getting bounces claiming that the message is spammy. Is
> > > anyone else getting rejected similarly?
> >
> > I haven't heard anything like that. You might check with the Apache
> > infra team, they manage the mailing lists (outside regular
> > moderation).
> >
>
> Thanks for the info. I sent a message to the dev-owner@z.a.o alias. Will
> that go anywhere useful?
>
> Thanks,
> wt
> --
> *Warren Turkal*
> Site Reliability Engineer |
> wt@ooyala.com | 650-961-3400
> www.ooyala.com | blog <http://www.ooyala.com/blog> |
> @ooyala<http://www.twitter.com/ooyala>
>
Re: Accessing ZK nodes from pluggable auth module
Posted by Warren Turkal <wt...@ooyala.com>.
On Tue, Jul 31, 2012 at 2:02 PM, Patrick Hunt <ph...@apache.org> wrote:
> On Mon, Jul 30, 2012 at 11:04 AM, Warren Turkal <wt...@ooyala.com> wrote:
> > I'm sure this is a really newbie type question, but I couldn't find docs
> on
> > how to do this.
> >
> > I am researching making a pluggable auth module. Is there any way to
> access
> > data in zookeeper nodes from a pluggable auth module? I'd like to store
> the
> > auth data within a collection of zookeeper nodes.
> >
>
> We don't provide for this. Wouldn't you need auth for those znodes in
> order to provide auth? Seems like a circular problem...
>
The auth can be overridden by other methods just like normally can happen
so the auth for these nodes could come from the digest scheme instead of
this module. Here's a description of the method I am trying to implement.
I want to map a machine (via hostname) to a machine owner. For example, the
following nodes would exist in the zookeeper with the following contents:
- /authdb/owner_principal_machines/ops-full:
u23-r8.region1.localdomain
u24-r23.region1.localdomain
- /authdb/owner_principal_machines/ops-n00b:
u12-r7.region1.localdomain
u13-r8.region1.localdomain
If the machine u23-r8.region1.localdomain (owned by dbmaster according to
the nodes above) connects to zookeeper, I would like it to be able to do
the CLI equivalent of "addauth authdb" to authenticate as the dbmaster role.
For flexibility, there are also hierarchical roles, which are also
represented with nodes. Those nodes would look like the following:
- /authdb/principal_children/ops
ops-full
ops-limited
- /authdb/principal_children/ops-app1
ops
- /authdb/principal_parents/ops-full
ops
ops-app1
- /authdb/principal_parents/ops-limited
ops
ops-app1
Note that each of the nodes is a full expansion so that only one node needs
to be consulted when determining a match for an id to an ACL.
These particular nodes would indicate that any machines owned by the
"ops-full" or "ops-limited" would also match the when the ACL was for the
"ops" id as well as their own names.
Perhaps open a client connection from the auth provider itself? (i'm
> not sure if this would work, I don't think anyone ever tried it)
>
Is there any way to get the configuration information so that I can get the
server names from there, or is there some other way to discover the server
names from within the server process so that I don't have to hard code it
in some other way?
> > Also, I've been unable to send message to this list from another email
> > address. I keep getting bounces claiming that the message is spammy. Is
> > anyone else getting rejected similarly?
>
> I haven't heard anything like that. You might check with the Apache
> infra team, they manage the mailing lists (outside regular
> moderation).
>
Thanks for the info. I sent a message to the dev-owner@z.a.o alias. Will
that go anywhere useful?
Thanks,
wt
--
*Warren Turkal*
Site Reliability Engineer |
wt@ooyala.com | 650-961-3400
www.ooyala.com | blog <http://www.ooyala.com/blog> |
@ooyala<http://www.twitter.com/ooyala>
Re: Accessing ZK nodes from pluggable auth module
Posted by Patrick Hunt <ph...@apache.org>.
On Mon, Jul 30, 2012 at 11:04 AM, Warren Turkal <wt...@ooyala.com> wrote:
> I'm sure this is a really newbie type question, but I couldn't find docs on
> how to do this.
>
> I am researching making a pluggable auth module. Is there any way to access
> data in zookeeper nodes from a pluggable auth module? I'd like to store the
> auth data within a collection of zookeeper nodes.
>
We don't provide for this. Wouldn't you need auth for those znodes in
order to provide auth? Seems like a circular problem...
Perhaps open a client connection from the auth provider itself? (i'm
not sure if this would work, I don't think anyone ever tried it)
> Also, I've been unable to send message to this list from another email
> address. I keep getting bounces claiming that the message is spammy. Is
> anyone else getting rejected similarly?
I haven't heard anything like that. You might check with the Apache
infra team, they manage the mailing lists (outside regular
moderation).
Patrick