Restore the previous behaviour where the Prometheus /metrics endpoint
required auth if auth was enabled.
A new -prometheus-no-auth flag allows you to override this and disable
auth for that specific endpoint.
This contains all the glue to make Server use the new repo.Handler:
- Remove all old handlers
- Add ServeHTTP to make Server a single http.Handler
- Remove Goji routing and replace by net/http and custom routing logic
Additionally, this implements two-level backup repositories.
The rest server is normally shutdown via a SIGINT signal. The http
handle calls are endless loops and don't return in the normal case. Thus
add a signal handler to shutdown the profiler.
* Add --max-size flag to limit repository size
* Only update repo size on successful write
* Use initial size as current size for first SaveBlob
* Apply LimitReader to request body
* Use HTTP 413 for size overage responses
* Refactor size limiting; do checks after every write
* Remove extra commented lines, d'oh
* Account for deleting blobs when counting space usage
* Remove extra commented line
* Fix unrelated bug (inverted err check)
* Update comment to trigger new CI build
In order to prevent users from accidentally exposing rest-server without
authentication, rest-server now defaults to requiring a .htpasswd. If
you want to disable authentication, you need to explicitly pass the new
--no-auth flag.
Exposes a few metrics for Prometheus under /metrics if started with --prometheus.
Example:
# HELP rest_server_blob_read_bytes_total Total number of bytes read from blobs
# TYPE rest_server_blob_read_bytes_total counter
rest_server_blob_read_bytes_total{repo="test",type="data"} 2.13557024e+09
rest_server_blob_read_bytes_total{repo="test",type="index"} 1.198653e+06
rest_server_blob_read_bytes_total{repo="test",type="keys"} 5388
rest_server_blob_read_bytes_total{repo="test",type="locks"} 1975
rest_server_blob_read_bytes_total{repo="test",type="snapshots"} 10018
# HELP rest_server_blob_read_total Total number of blobs read
# TYPE rest_server_blob_read_total counter
rest_server_blob_read_total{repo="test",type="data"} 3985
rest_server_blob_read_total{repo="test",type="index"} 21
rest_server_blob_read_total{repo="test",type="keys"} 12
rest_server_blob_read_total{repo="test",type="locks"} 12
rest_server_blob_read_total{repo="test",type="snapshots"} 32
# HELP rest_server_blob_write_bytes_total Total number of bytes written to blobs
# TYPE rest_server_blob_write_bytes_total counter
rest_server_blob_write_bytes_total{repo="test",type="data"} 1.063726179e+09
rest_server_blob_write_bytes_total{repo="test",type="index"} 395586
rest_server_blob_write_bytes_total{repo="test",type="locks"} 1975
rest_server_blob_write_bytes_total{repo="test",type="snapshots"} 1933
# HELP rest_server_blob_write_total Total number of blobs written
# TYPE rest_server_blob_write_total counter
rest_server_blob_write_total{repo="test",type="data"} 226
rest_server_blob_write_total{repo="test",type="index"} 6
rest_server_blob_write_total{repo="test",type="locks"} 12
rest_server_blob_write_total{repo="test",type="snapshots"} 6
