Add documentation for bare metal deployment (#372)

README.md

@@ -29,6 +29,7 @@ large scale distributed systems.
 * [Getting started with Oxia](docs/getting-started.md)
 * [Go client API](docs/go-api.md)
 * [Deploy using Helm Chart](docs/ks8-deploy.md)
+* [Deploy using bare metal](docs/bare-metal-deploy.md)
 * Developer docs 
   * [Replication protocol](docs/replication-protocol.md)
     * [Coordinator](docs/replication-coordinator.md)

docs/bare-metal-deploy.md

@@ -0,0 +1,133 @@
+# Deploying in the bare metal
+
+Suppose you don't have the Kubernetes environment or some container-based system. You can try to deploy Oxia with the bare metal environment.
+
+> The oxia coordinator only supports the file, k8s config map, and memory metadata. Therefore, We only suggest using it for testing or POC.
+
+## Download code from the GitHub
+
+You can check https://github.com/streamnative/oxia to download the source of StreamNative oxia.
+
+## Build from the source code
+
+Change the directory to the root directory of StreamNative oxia project.
+
+```shell
+cd <directory>/oxia
+```
+
+Then run the command as follows to build the project by source code.
+
+```shell
+make
+```
+
+After building, you'll see a bin directory at the project's root.
+
+```shell
+oxia/
+├── bin/
+│   ├── oxia
+└── ...
+```
+
+## Deploying oxia storage node
+
+We should deploy the oxia storage node first. We can start three storage nodes for primary usage. the command is as follows.
+
+```shell
+# storage-node-0
+./bin/oxia server -i 0.0.0.0:6649 -p 0.0.0.0:6648 -m 0.0.0.0:8080 --wal-dir "<wal-dir-path>" --data-dir "<data-dir-path>"
+# storage-node-1
+./bin/oxia server -i 0.0.0.0:6661 -p 0.0.0.0:6660 -m 0.0.0.0:8081 --wal-dir "<wal-dir-path>" --data-dir "<data-dir-path>"
+# storage-node-2
+./bin/oxia server -i 0.0.0.0:6663 -p 0.0.0.0:6662 -m 0.0.0.0:8082 --wal-dir "<wal-dir-path>" --data-dir "<data-dir-path>"
+```
+
+The command explanation is as follows:
+
+```shell
+Usage:
+  oxia server [flags]
+
+Flags:
+      --data-dir string               Directory where to store data (default "./data/db")
+      --db-cache-size-mb int          Max size of the shared DB cache (default 100)
+  -h, --help                          help for server
+  -i, --internal-addr string          Internal service bind address (default "0.0.0.0:6649")
+  -m, --metrics-addr string           Metrics service bind address (default "0.0.0.0:8080")
+  -p, --public-addr string            Public service bind address (default "0.0.0.0:6648")
+      --wal-dir string                Directory for write-ahead-logs (default "./data/wal")
+      --wal-retention-time duration   Retention time for the entries in the write-ahead-log (default 1h0m0s)
+
+Global Flags:
+  -j, --log-json                      Print logs in JSON format
+  -l, --log-level string              Set logging level [disabled|trace|debug|info|warn|error|fatal|panic] (default "info")
+      --profile                       Enable pprof profiler
+      --profile-bind-address string   Bind address for pprof (default "127.0.0.1:6060")
+```
+## Deploying oxia coordinator
+
+Since the coordinator is brain-like in the oxia cluster, it should have some configurations to help it to make decisions.
+
+We can create it in the specific path you need. the configuration template is as follows. 
+
+```yaml
+namespaces:
+  - name: default
+    initialShardCount: 3  # This configuration indicates the number of shards for keys across the namespace.
+    replicationFactor: 3  # This configuration indicates the number of replicas for of key-shard.
+servers:
+    # storage-node-0
+  - public: 127.0.0.1:6648  
+    internal: 127.0.0.1:6649
+    # storage-node-1
+  - public: 127.0.0.1:6660  
+    internal: 127.0.0.1:6661
+    # storage-node-2
+  - public: 127.0.0.1:6662
+    internal: 127.0.0.1:6663
+```
+
+> If you need to know what the namespaces are. You can check the [architecture](https://github.com/streamnative/oxia/blob/main/docs/architecture.md) section to get more information.
+
+After configuration file creation, we can start the coordinator. The command is as follows.
+
+```shell
+./bin/oxia coordinator --conf "<conf-file>" --file-clusters-status-path "<cluster-status-file-path>" --metadata file  -i 0.0.0.0:6664 -m 0.0.0.0:8083 
+```
+
+The command explanation is as follows:
+
+```shell
+Usage:
+  oxia coordinator [flags]
+
+Flags:
+  -f, --conf string                        Cluster config file
+      --conf-file-refresh-time duration    How frequently to check for updates for cluster configuration file (default 1m0s)
+      --file-clusters-status-path string   The path where the cluster status is stored when using 'file' provider (default "data/cluster-status.json")
+  -h, --help                               help for coordinator
+  -i, --internal-addr string               Internal service bind address (default "0.0.0.0:6649")
+      --k8s-configmap-name string          ConfigMap name for metadata configmap
+      --k8s-namespace string               Kubernetes namespace for metadata configmap
+      --metadata MetadataProviderImpl      Metadata provider implementation: file, configmap or memory (default file)
+  -m, --metrics-addr string                Metrics service bind address (default "0.0.0.0:8080")
+
+Global Flags:
+  -j, --log-json                      Print logs in JSON format
+  -l, --log-level string              Set logging level [disabled|trace|debug|info|warn|error|fatal|panic] (default "info")
+      --profile                       Enable pprof profiler
+      --profile-bind-address string   Bind address for pprof (default "127.0.0.1:6060")
+```
+
+## Go for testing
+
+After all of the components are up and running without an error log. We can use oxia-perf to test. the command is as follows.
+
+```shell
+./bin/oxia perf --rate 10000
+```
+
+
+Well done, please enjoy your powerful oxia cluster.