Ronald Wimmer via FreeIPA-users wrote:

Hi,

we have been evaluating FreeIPA for quite a while now on our test setup (1 IPA server, 1 Replica) and are planning to move towards production. Can the whole setup be migrated from an ipa test to an ipa production server? (the ipa 'linux.ourdomain.at' domain should stay the same) Or would it be easier to use both test servers for production (and just adding additional replicas)?

There is no real migration mechanism between environments like you're looking for (e.g. test -> integration -> production).

IMHO you are best off putting these systems into production and perhaps adding additional masters.

Be sure to avoid single-point-of-failures, particularly with the CA.

rob

Ronald Wimmer via FreeIPA-users wrote:

On 19.10.18 14:15, Rob Crittenden via FreeIPA-users wrote:

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Ronald Wimmer via FreeIPA-users wrote:

...

Hi,

we have been evaluating FreeIPA for quite a while now on our test setup (1 IPA server, 1 Replica) and are planning to move towards production. Can the whole setup be migrated from an ipa test to an ipa production server? (the ipa 'linux.ourdomain.at' domain should stay the same) Or would it be easier to use both test servers for production (and just adding additional replicas)?

There is no real migration mechanism between environments like you're looking for (e.g. test -> integration -> production).

IMHO you are best off putting these systems into production and perhaps adding additional masters.

How do I add new production servers? Simply issue the "ipa-replica-install" on the new systems? (The documentation states: "Replicas are created as clones of the initial master servers. Once a replica is created, it is functionally identical to the master server")

See the docs for instructions on creating a replica.

Yes, masters are all more or less equal, the difference being whether they run optional services and there are a few roles that only one master has (CRL manager, renewal manager).

What about AD trust? Does it have to be set up for each of the new servers? https://www.freeipa.org/page/Active_Directory_trust_setup does say so: "When planning access of AD users to IPA clients, make sure to run ipa-adtrust-install on every IPA master these IPA clients will be connecting to."

Then I guess it does.

Does it make sense to install CA services on each of the servers?

Probably not, you just want > 1, ideally in separate locations in case of catastrophic failure. There is no reason you can't run a CA on all masters it just slightly increases replication traffic, adds some additional RAM and disk requirements and is another service to administer.

rob

On 11/21/18 9:26 PM, Ronald Wimmer via FreeIPA-users wrote:

On 21.11.18 17:40, Rob Crittenden via FreeIPA-users wrote:

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[..] Yes, masters are all more or less equal, the difference being whether they run optional services and there are a few roles that only one master has (CRL manager, renewal manager).

I still do not have a clear picture. Is it true that any scenario starts with one master and all others are replicas?

Yes, you start by installing the first master with ipa-server-install, and then create replicas with ipa-replica-install. Depending on the options you provide, you can configure (or not) additional services, such as CA, DNS, KRA etc... A given service can be present on 0 / 1 / n servers (for instance KRA is optional). For the configured services, we recommend at least 2 servers to provide redundancy.

The first instance of a service is not always configured on the first master. For example, you can setup the 1st master without KRA, setup a replica without KRA and later on decide to run ipa-kra-install on the replica. In this case the KRA service is running on the replica only (and we would advise to run ipa-kra-install on another node to provide redundancy).

When 2 servers provide the same set of services, they are equivalent and there is no distinction whether it was the first master or not. As Rob said, the only exception is CRL manager and renewal manager as only one node can hold this function at a given time. But this function can be migrated to another node (see [1] for the procedure).

...

...

What about AD trust? Does it have to be set up for each of the new servers? https://www.freeipa.org/page/Active_Directory_trust_setup does say so: "When planning access of AD users to IPA clients, make sure to run ipa-adtrust-install on every IPA master these IPA clients will be connecting to."

Then I guess it does.

Can anyone confirm this?

There are more explanations in this doc: [2]. A FreeIPA server can be trust controller, trust agent or standard server. The server needs to be either a trust controller or a trust agent to resolve AD users and groups.

Hope this clarifies, flo

[1] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/htm...

[2] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/htm...

Cheers, Ron _______________________________________________ FreeIPA-users mailing list -- freeipa-users@lists.fedorahosted.org To unsubscribe send an email to freeipa-users-leave@lists.fedorahosted.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedorahosted.org/archives/list/freeipa-users@lists.fedorahoste...