open-telemetry/opentelemetry-operator v0.145.0 on GitHub

0.145.0

clusterObservability: Inital implementation of ClusterObservability CRD (#3820)
This change provides an initial implementation of the Cluster Observability CRD and operator control loop.
Reconcilation is disabled by default.
Currently, the CRD is not included in the operator bundle and must be installed manually.
To enable reconciliation, enable the --feature-gates=+operator.clusterobservability feature gate.

target allocator: Add readiness and liveness probe configurations for target allocator CRD (#4639)
target allocator: Make the least-weighted target allocation strategy take job name into account. (#3128)
Uses job name instead of "first match" to when number of targets is equal. The effect is to spread out targets with the same job name across collectors.

target allocator: Fix TLS certificate hot-reload for mTLS connections (#4368)
The Target Allocator now automatically reloads TLS certificates when they are renewed
by cert-manager. Previously, certificate renewals required a pod restart because
certificates were only loaded once at startup. The fix uses fsnotify to watch the
certificate directory and dynamically reloads certificates via the GetCertificate
callback, enabling seamless certificate rotation without downtime.
collector: Configure collector to reload client certificate periodically (#4657)
When the collector connects to the target allocator over mTLS, certificates were not automatically reloaded after expiration. This adds reload_interval to the TLS configuration, enabling the Prometheus receiver to periodically reload certificates from disk.
The default interval of 5 minutes provides a good balance between picking up renewed certificates promptly and avoiding unnecessary overhead.
operator: Set Kubernetes API server egress network policy port dynamically. (#4411)
The operator network policy egress rule for the Kubernetes API server was hardcoded to port 6443.
This PR uses uses endpointslices.discovery.k8s.io -n default kubernetes to get the port and IP addresses of the Kubernetes API server
for the operator egress network policy.