Commit Graph

9 Commits

Author SHA1 Message Date
Joshua Olson
4099a04cc0 minor whitespace change
Trying to get travis-ci build to pass for "git diff --exit-code" command
2018-08-22 09:09:01 -05:00
Joshua Olson
532f546dcf kube-prometheus: add info about installing & compiling 2018-07-31 14:36:55 -05:00
Max Leonard Inden
cd709826c9 format: Introduce shellcheck [1] for shell script analysis
[1] https://github.com/koalaman/shellcheck
2018-07-08 16:58:17 +02:00
Frederic Branczyk
3edf5c5410 Merge pull request #1333 from mxinden/alerting-rule-file-crd
prometheus: Introduce RuleFile Custom Resource Definition
2018-05-18 17:14:28 +02:00
Max Leonard Inden
9e180452f8 prometheus: Introduce RuleFile Custom Resource Definition
This patch introduces a new Custom Resource Definition to the
Prometheus Operator - the Rule CRD. It addresses two main
needs:

1. Prometheus (alerting and recording) Rule validation during creation time
via Kubernetes Custom Resource Definition validation.

2. Life-cycle management of Prometheus application Rules alongside the
application itself, inside the applications Kubernetes namespace, not
necessarily the namespace of the scraping Prometheus instance.

A user defines Prometheus alerting and recording Rules via a Kubernetes
Custom Resource Definition. These Custom Resource Definitions can be
fully validated by the Kubernetes API server during creation time via
automatically generated OpenAPI specifications. Instead of the
restriction of a Prometheus instance to only select Rule definitions
inside its own namespace, the Prometheus specification is extended to
also specify namespaces to look for Rule Custom Resource Definitions
outside its own namespace.

---

Dependent technical changes:

- prometheus: Use github.com/jimmidyson/configmap-reload to reload rules

- prometheus: Remove Prometheus Statefulset deletion function. Starting
with K8s >=1.8 this is handled via OwnerReferences.

- prometheus: Do not add rule files checksum to Prometheus configuration
secret

- prometheus: Update StatefulSet only on relevant changes. Instead of
updating the Prometheus StatefulSet on every `sync()` run, only update
it if the input parameters to `makeStatefulSet` change.  Enforce this
via a checksum of the parameters which is saved inside the annotations
of the statefulset.

- e2e/prometheus: Check how often resources (Secret, ConfigMap,
Prometheus CRD, Service) are updated to enforce that Prometheus Operator
only updated created resources if necessary.

- contrib/prometheus-config-reloader: Remove logic to retriev K8s
ConfigMaps. These are mounted into the pod right away now.
2018-05-18 16:27:20 +02:00
Frederic Branczyk
fef0a65938 Adapt docs on additional rules and dashboards 2018-05-18 11:00:11 +02:00
Max Leonard Inden
0461c85098 docs: Run embedmd on both Docs and kube-prometheus README.md 2018-05-14 11:55:16 +02:00
Max Leonard Inden
0124e8c272 contrib/kube-prometheus: add -f to rm in build.sh
According to the man pages of `rm` and the `-f` option:
> Attempt to remove the files without prompting for confirma- tion,
> regardless of the file's permissions.  If the file does not exist, do
> not display a diagnostic message or modify the exit status to reflect an
> error.  The -f option overrides any previous -i options.

This patch prevents the `build.sh` script from failing if files do not
exist when attempting to delete them.
2018-05-11 11:23:10 +02:00
Frederic Branczyk
3388f96afe Address comments 2018-05-06 08:29:52 -07:00