* Improve error logging for missing config and QL dir
Currently, when Prometheus can't open its config file or the query
logging dir under the data dir, it only logs what it has been given
default or commandline/config. Depending on the environment this can be
less than helpful, since the working directory may be unclear to the
user. I have specifically kept the existing error messages as intact as
possible to a) still log the parameter as given and b) cause as little
disruption for log-parsers/-analyzers as possible.
So in case of the config file or the data dir being non-absolute paths,
I use os.GetWd to find the working dir and assemble an absolute path for
error logging purposes. If GetWd fails, we just log "unknown", as
recovering from an error there would be very complex measure, likely not
worth the code/effort.
Example errors:
```
$ ./prometheus
ts=2022-02-06T16:00:53.034Z caller=main.go:445 level=error msg="Error loading config (--config.file=prometheus.yml)" fullpath=/home/klausman/src/prometheus/prometheus.yml err="open prometheus.yml: no such file or directory"
$ touch prometheus.yml
$ ./prometheus
[...]
ts=2022-02-06T16:01:00.992Z caller=query_logger.go:99 level=error component=activeQueryTracker msg="Error opening query log file" file=data/queries.active fullpath=/home/klausman/src/prometheus/data/queries.active err="open data/queries.active: permission denied"
panic: Unable to create mmap-ed active query log
[...]
$
```
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
* Replace our own logic with just using filepath.Abs()
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
* Further simplification
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
* Review edits
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
* Review edits
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
* Review edits
Signed-off-by: Tobias Klausmann <klausman@schwarzvogel.de>
Update the wording of the `labelmap` relabel action to make it more
clear that it acts on all the label names, rather than the list provided
by source_labels.
Signed-off-by: SuperQ <superq@gmail.com>
There is the critical CVE-2021-43816 against containerd which is only
fixed in v1.5.9. In practice I don't believe this affects prometheus.
However, upgrading will help quieten loud vulnerability scanners.
To upgrade I ran go get github.com/containerd/containerd@v1.5.9.
Signed-off-by: Keegan Carruthers-Smith <keegan.csmith@gmail.com>
If a queue is stopped and one of its shards happens to hit the
batch_send_deadline at the same time a deadlock can occur where stop
holds the mutex and will not release it until the send is finished, but
the send needs the mutex to retrieve the most recent batch. This is
fixed by using a second mutex just for writing.
In addition, the test I wrote exposed a case where during shutdown a
batch could be sent twice due to concurrent calls to queue.Batch() and
queue.FlushAndShutdown(). Protect these with a mutex as well.
Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>
* Fix documentation for Docker API filters
Signed-off-by: Robert Jacob <xperimental@solidproject.de>
* Undo indentation change
Signed-off-by: Robert Jacob <xperimental@solidproject.de>
* Added pathPrefix function to the template reference documentation
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* PR suggestions
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* Switch wording back
Signed-off-by: David N Perkins <David.N.Perkins@ibm.com>
* discovery/targetgroup: support marshaling to JSON
targetgroup.Group is able to be marshaled to and from YAML, but not with
JSON. JSON is used for the http_sd API representation, so users
implementing the API were required to implement their own type which is
expected by the JSON unmarshaler.
Signed-off-by: Robert Fratto <robertfratto@gmail.com>
* fix lint error
Signed-off-by: Robert Fratto <robertfratto@gmail.com>
* Update discovery/targetgroup/targetgroup.go
Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: Robert Fratto <robertfratto@gmail.com>
* s/Json/JSON
Signed-off-by: Robert Fratto <robertfratto@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
This commit removes the dependency between Prometheus and influx.
Note: Go keeps adding the indirect dependencies in go.mod, I can't
remove them.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* add prometheus logo in the list of file that should be served at the root
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
* move prometheus logo to src/images
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
* Add Prometheus logo in react UI
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Use REM
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* increase the margin top of the navbar-brand
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Fail configuration unmarshalling if kubeconfig or api url are set with
"own namespace"
Only read namespace file if needed.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
When using Kubernetes service discovery on a Prometheus instance that's
not running inside Kubernetes, the creation of the service discovery
fails with a "no such file or directory" error as the special
`/var/run/secrets/kubernetes.io/serviceaccount/namespace` file is not
there. This commit moves the code that reads this file into the
if-branch where no `APIServer.URL` is given (that one basically makes
Prometheus assume it is running inside of a Kubernetes cluster).
Signed-off-by: Georg Gadinger <nilsding@nilsding.org>
When using Kubernetes service discovery on a Prometheus instance that's
not running inside Kubernetes, the creation of the service discovery
fails with a "no such file or directory" error as the special
`/var/run/secrets/kubernetes.io/serviceaccount/namespace` file is not
there. This commit moves the code that reads this file into the
if-branch where no `APIServer.URL` is given (that one basically makes
Prometheus assume it is running inside of a Kubernetes cluster).
Signed-off-by: Georg Gadinger <nilsding@nilsding.org>
* Fix bug that sets the range input to the resolution
Signed-off-by: Julius Volz <julius.volz@gmail.com>
* Address review comments
Signed-off-by: Julius Volz <julius.volz@gmail.com>
