ipfs-cluster/allocator
Hector Sanjuan 8f06baa1bf Issue #162: Rework configuration format
The following commit reimplements ipfs-cluster configuration under
the following premises:

  * Each component is initialized with a configuration object
  defined by its module
  * Each component decides how the JSON representation of its
  configuration looks like
  * Each component parses and validates its own configuration
  * Each component exposes its own defaults
  * Component configurations are make the sections of a
  central JSON configuration file (which replaces the current
  JSON format)
  * Component configurations implement a common interface
  (config.ComponentConfig) with a set of common operations
  * The central configuration file is managed by a
  config.ConfigManager which:
    * Registers ComponentConfigs
    * Assigns the correspondent sections from the JSON file to each
    component and delegates the parsing
    * Delegates the JSON generation for each section
    * Can be notified when the configuration is updated and must be
    saved to disk

The new service.json would then look as follows:

```json
{
  "cluster": {
    "id": "QmTVW8NoRxC5wBhV7WtAYtRn7itipEESfozWN5KmXUQnk2",
    "private_key": "<...>",
    "secret": "00224102ae6aaf94f2606abf69a0e278251ecc1d64815b617ff19d6d2841f786",
    "peers": [],
    "bootstrap": [],
    "leave_on_shutdown": false,
    "listen_multiaddress": "/ip4/0.0.0.0/tcp/9096",
    "state_sync_interval": "1m0s",
    "ipfs_sync_interval": "2m10s",
    "replication_factor": -1,
    "monitor_ping_interval": "15s"
  },
  "consensus": {
    "raft": {
      "heartbeat_timeout": "1s",
      "election_timeout": "1s",
      "commit_timeout": "50ms",
      "max_append_entries": 64,
      "trailing_logs": 10240,
      "snapshot_interval": "2m0s",
      "snapshot_threshold": 8192,
      "leader_lease_timeout": "500ms"
    }
  },
  "api": {
    "restapi": {
      "listen_multiaddress": "/ip4/127.0.0.1/tcp/9094",
      "read_timeout": "30s",
      "read_header_timeout": "5s",
      "write_timeout": "1m0s",
      "idle_timeout": "2m0s"
    }
  },
  "ipfs_connector": {
    "ipfshttp": {
      "proxy_listen_multiaddress": "/ip4/127.0.0.1/tcp/9095",
      "node_multiaddress": "/ip4/127.0.0.1/tcp/5001",
      "connect_swarms_delay": "7s",
      "proxy_read_timeout": "10m0s",
      "proxy_read_header_timeout": "5s",
      "proxy_write_timeout": "10m0s",
      "proxy_idle_timeout": "1m0s"
    }
  },
  "monitor": {
    "monbasic": {
      "check_interval": "15s"
    }
  },
  "informer": {
    "disk": {
      "metric_ttl": "30s",
      "metric_type": "freespace"
    },
    "numpin": {
      "metric_ttl": "10s"
    }
  }
}
```

This new format aims to be easily extensible per component. As such,
it already surfaces quite a few new options which were hardcoded
before.

Additionally, since Go API have changed, some redundant methods have been
removed and small refactoring has happened to take advantage of the new
way.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-10-18 00:00:12 +02:00
..
ascendalloc Issue #162: Rework configuration format 2017-10-18 00:00:12 +02:00
descendalloc Issue #162: Rework configuration format 2017-10-18 00:00:12 +02:00
util Issue #162: Rework configuration format 2017-10-18 00:00:12 +02:00