- Refactor dotted edge logic.
- Change Storage view to show storage components as well as all
the pods.
- Sentence case storage related variables.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will:
- Add StorageClass resource. Storage classes are mentioned
in the PVC spec. We're using storage class name from PVC spec to
add adjacency to the PVC node.
- Add square sheet shape for StorageClass.
- Add storage filter in the PODS topology.
Storage Filter will allow user to see distinct view of
stateful applications.
- Add visually distinct edge to show storage adjacency.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
- Kubernetes storage components such as PV and PVC are connected based on two
parameters Persistent volume claim name and Persistent Volume name.
- PVC contains the volume name which is, PV name itself. Hence, we can
show edge for PVC and PV.
- This will bring higher level visibility for kubernetes storage components.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will
- Add Kubernetes volume resources such as PV, PVC.
- Add shapes for Kubernetes PV and PVC
- Add `Cylinder` shape for PV and `Dotted Cylinder` shape for PVC.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
* Sentence cased text everywhere
Follows Weave Cloud's direction of sentence case on most things.
* More space between sorter caret and label
* Use full topology name for table header
* Refactor: func has already access to probeID
* Allow controls for more k8s topologies
Controls for nodes generally need to know about the probe that is in
control of them.
This PR appends the probe ID info to k8s topologies CronJob, DaemonSet,
Service, and StatefulSet. Therefore allowing plugins to append controls.
* Remove superfluous error check
* Add some tests to verify controls allowance
Reflectors are created and run within the same function, asynchronously from the main thread.
Creating reflectors may require calls to the kubernetes api, which can return errors.
API errors are not handled in the main thread, but are handled asynchronously by retries.
Upgraded from 99c19923, branch release-3.0.
This required fetching or upgrading the following:
* k8s.io/api to kubernetes-1.9.1
* k8s.io/apimachinery to kubernetes-1.9.1
* github.com/juju/ratelimit to 1.0.1
* github.com/spf13/pflag to 4c012f6d
Also, update Scope's imports/function calls to be compatible with the new client.
`isResourceSupported` checks whether a kubernetes resource is supported by the api server.
This ensures that, if the probe is unable to communicate with the api server, the call is retried until a true/false response.
If `isResourceSupported` returns false, `ListAndWatch` is not called and `runReflectorUntil` just exits.
This change makes the underlying reader set their corresponding `eof` slot to true on termination.
This make the overall logReadCloser converge to EOF in case of errors of the underlying readers, therefore prevent spinning on read.
`bufio.Reader.ReadBytes` may not return io.EOF when `Close()` closes the underlying reader.
For instance, closing logReadCloser from the Scope App makes `bufio.Reader.ReadBytes` produce the following error: `http2: response body closed`.
This is achieved by issuing an http request for each container to kubernetes' API, which yields one Reader for the corresponding container.
`logReadCloser' then reads from the above readers in parallel as data is available, buffering when necessary, forwarding it to clients by implementing the io.ReadCloser interface.
...which is useful if we want to disable periodic fetching of all
objects.
Previously the interval was also used to set the initial backoff of
the reconnect logic. A zero value there would result in _no_
backoff. So instead we now just use the default, which is 10s which
also happens to be the default probe.kubernetes.interval, so there is
no change in behaviour for the stock settings.
This prevents cluttering host.LocalNetworks with lots of /32
addresses. These were unsightly and rather distracting in the UI. They
also bloated the report and slowed down server-side rendering.
Fixes#2748.
Spec.Replicas is a *int32, with a value of nil occurring when the user doesn't set it.
In this case k8s defaults to 1, so we mimic this to show the effective value.
Most of the time you only care about cronjobs, not the jobs that make them up,
so we only collect full cronjob data. We associate pods of jobs with the parent cronjob
