Avoid ever blocking new connections in the peer logger. Instead:
1. Send all new peers to a highly buffered channel.
2. Emit "dropped event" errors whenever we detect that we're dropping events and falling behind.
3. Don't log protocols, they're too large.
4. Don't log disconnects, we don't need them.
- allow IPFS_PLUGINS build-arg to be passed to docker build command
- remove annoying logging from peerlog plugin that appears multiple times in docker logs
usage:
docker build --build-arg IPFS_PLUGINS="foo bar baz"
License: MIT
Signed-off-by: Oli Evans <oli@tableflip.io>
adds a plugin to log just peerIDs for nodes we connect to, to allow us to see how many unique peers a node connects to over time.
It's set up a preloaded plugin, so it would be enabled by default. We may want to extract it to a seperate repo so we can make it an optional add on.
**Usage**
```console
$ GOLOG_FILE=~/peer.log IPFS_LOGGING_FMT=json ipfs daemon
```
**output**
```json
{"level":"info","ts":"2020-02-10T13:54:26.639Z","logger":"plugin/peerlog","caller":"peerlog/peerlog.go:51","msg":"connected","peer":"QmS2H72gdrekXJggGdE9SunXPntBqdkJdkXQJjuxcH8Cbt"}
{"level":"info","ts":"2020-02-10T13:54:59.095Z","logger":"plugin/peerlog","caller":"peerlog/peerlog.go:56","msg":"disconnected","peer":"QmS2H72gdrekXJggGdE9SunXPntBqdkJdkXQJjuxcH8Cbt"}
```
License: MIT
Signed-off-by: Oli Evans <oli@tableflip.io>
