162 lines
5 KiB
Markdown
162 lines
5 KiB
Markdown
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# Globally unique domain zone
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**Make sure you understand the [basic concepts]((../nns/README.md)) of `NNS`.**
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`Globally Unique Domains Zone` (`GUDZ`) is an extension of `NNS` that ensures unique names across multiple domain zones. When this option is enabled, all newly created domains will automatically receive a corresponding alias in the designated global zone. Deleting a domain will also remove its alias from the global zone.
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It's important to note that this feature is not retroactive: domains created before this option is enabled will not receive a global alias. Likewise, if the option is later disabled, domains that already have a `GUDZ` alias will retain their records. To fully disable `GUDZ`, all domains must be recreated with the option turned off.
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To enable `GUDZ`, add a `cnametgt=$(global domain)` `TXT` record that specifies the global zone.
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**Example:**
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Domains:
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- `poland`
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- `sweden`
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- `animals.org`
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It is necessary to associate the domain zones `.poland` and `.sweden` into the global zone `.animals`.
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Create domains:
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```
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frostfs-adm morph nns register --name="poland" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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frostfs-adm morph nns register --name="sweden" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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frostfs-adm morph nns register --name="org" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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frostfs-adm morph nns register --name="animals.org" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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Add the `cnametgt` records:
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```
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frostfs-adm morph nns add-record --name="poland" --data="cnametgt=animals.org" --type="txt" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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frostfs-adm morph nns add-record --name="sweden" --data="cnametgt=animals.org" --type="txt" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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Create a domain with mapping to the global zone:
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```
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frostfs-adm morph nns register --name="bober.poland" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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Add any `TXT` record
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```
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frostfs-adm morph nns add-record --name="bober.poland" --data="CID" --type="txt" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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Verify that the created domain has alias in the global zone
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```
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frostfs-adm morph nns tokens -v --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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balance.frostfs
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animals.org
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group.frostfs
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container
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org
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container.frostfs
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proxy.frostfs
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policy.frostfs
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alphabet0.frostfs
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sweden
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frostfsid.frostfs
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bober.animals.org (CNAME: bober.sweden)
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netmap.frostfs
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frostfs
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poland
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bober.poland
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```
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Create of a conflicting domain
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```
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frostfs-adm morph nns register --name="bober.sweden" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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unable to register domain: script failed (FAULT state) due to an error: at instruction 1263 (THROW): unhandled exception: "global domain is already taken: bober.animals.org. Domain: bober.sweden
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```
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**Disable GUDZ**
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Delete `cnametgt` records
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```
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frostfs-adm morph nns delete-records --type=txt --name=poland --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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Create `hamster.poland` and `hamster.sweden`
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```
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frostfs-adm morph nns register --name="hamster.poland" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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frostfs-adm morph nns register --name="hamster.sweden" --email="email@email.email" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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`hamster.poland` and `hamster.sweden` does not have alias
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```
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frostfs-adm morph nns tokens -v --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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balance.frostfs
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animals.org
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group.frostfs
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container
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org
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container.frostfs
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proxy.frostfs
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policy.frostfs
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alphabet0.frostfs
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sweden
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frostfsid.frostfs
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bober.animals.org (CNAME: bober.poland)
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netmap.frostfs
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frostfs
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poland
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bober.poland
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hamster.poland
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```
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Delete global alias of `bober.poland`
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```
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frostfs-adm morph nns delete-records --name="bober.poland" --type="txt" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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```
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frostfs-adm morph nns tokens -v --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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balance.frostfs
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animals.org
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group.frostfs
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container
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org
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container.frostfs
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proxy.frostfs
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policy.frostfs
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alphabet0.frostfs
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sweden
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frostfsid.frostfs
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netmap.frostfs
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frostfs
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poland
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bober.poland
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hamster.poland
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```
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Delete `bober.poland`
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```
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frostfs-adm morph nns delete --name="bober.poland" --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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```
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```
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frostfs-adm morph nns tokens -v --config /home/achuprov/Documents/work/frostfs-dev-env/frostfs-adm.yml
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balance.frostfs
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animals.org
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group.frostfs
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container
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org
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container.frostfs
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proxy.frostfs
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policy.frostfs
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alphabet0.frostfs
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sweden
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frostfsid.frostfs
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netmap.frostfs
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frostfs
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poland
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hamster.poland
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```
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