kubernetes-diff-logger
This simple application is designed to watch Kubernetes objects and log diffs when they occur. It is designed to log changes to Kubernetes objects in a clean way for storage and processing in Loki.
Example
./kubernetes-diff-logger -namespace=default
{"timestamp":"2019-10-23T16:57:23Z","verb":"updated","type":"deployment","notes":"[Replicas: 1 != 2]", "name":"nginx"}}
{"timestamp":"2019-10-23T16:57:35Z","verb":"updated","type":"deployment","notes":"[Template.Spec.Containers.slice[0].Image: nginx != nginx:latest]", "name":"nginx"}}
See Deployment for example yaml to deploy to Kubernetes. The example will monitor and log information about changes in all namespaces.
Usage
Usage of ./kubernetes-diff-logger:
-config string
Path to config file. Required.
-kubeconfig string
Path to a kubeconfig. Only required if out-of-cluster.
-log-added
Log when deployments are added.
-log-deleted
Log when deployments are deleted.
-master string
The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.
-namespace string
Filter updates by namespace. Leave empty to watch all.
-resync duration
Periodic interval in which to force resync objects. (default 30s)
Config File
differs:
- nameFilter: "*"
type: "deployment"
- nameFilter: "*"
type: "statefulset"
- nameFilter: "*"
type: "daemonset"