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Add support for CopyObject across regions and multiple Minio IPs

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This PR adds CopyObject support for objects residing in buckets
in different Minio instances (where Minio instances are part of
a federated setup).

Also, added support for multiple Minio domain IPs. This is required
for distributed deployments, where one deployment may have multiple
nodes, each with a different public IP.
This commit is contained in:
Nitish Tiwari
2018-05-12 00:32:30 +05:30
committed by kannappanr
parent f30c95a301
commit 6ce7265c8c
12 changed files with 208 additions and 82 deletions
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6
docs/federation/lookup/README.md
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@@ -21,21 +21,21 @@ Bucket lookup federation requires two dependencies
```
export MINIO_ETCD_ENDPOINTS="http://remote-etcd1:2379,http://remote-etcd2:4001"
export MINIO_DOMAIN=domain.com
export MINIO_PUBLIC_IP=44.35.2.1
export MINIO_PUBLIC_IPS=44.35.2.1,44.35.2.2,44.35.2.3,44.35.2.4
minio server http://rack{1...4}.host{1...4}.domain.com/mnt/export{1...32}
```
> cluster2
```
export MINIO_ETCD_ENDPOINTS="http://remote-etcd1:2379,http://remote-etcd2:4001"
export MINIO_DOMAIN=domain.com
export MINIO_PUBLIC_IP=44.35.2.2
export MINIO_PUBLIC_IPS=44.35.1.1,44.35.1.2,44.35.1.3,44.35.1.4
minio server http://rack{5...8}.host{5...8}.domain.com/mnt/export{1...32}
```
In this configuration you can see `MINIO_ETCD_ENDPOINTS` points to the etcd backend which manages Minio's
`config.json` and bucket DNS SRV records. `MINIO_DOMAIN` indicates the domain suffix for the bucket which
will be used to resolve bucket through DNS. For example if you have a bucket such as `mybucket`, the
client can use now `mybucket.domain.com` to directly resolve itself to the right cluster. `MINIO_PUBLIC_IP`
client can use now `mybucket.domain.com` to directly resolve itself to the right cluster. `MINIO_PUBLIC_IPS`
points to the public IP address where each cluster might be accessible, this is unique for each cluster.
NOTE: `mybucket` only exists on one cluster either `cluster1` or `cluster2` this is random and