The only place Counters are used is in rendering, for the number of
nodes under a topology, so the overhead of holding a unique data
structure in every Node is unwarranted.
Counters are not set in the probe, so we don't need any
backwards-compatibility in report decoding. Similarly they are not set
until after all nodes are merged, so we don't need that logic.
This dependency makes it harder to see the structure of the program,
and sometimes complicates compilation.
Mostly just changing the source of strings that are already exported
from the report package. A few new strings have to be moved there,
plus the function `IsPauseImageName()`.
- Add a new client in probe/kubernetes/client.go
which will be used to fetch details of Snapshot CRD
- Visualize VolumeSnapshot and VolumeSnapshotData
- Add adjacency between PV and VolumeSnapshot
- Add adjacency between VolumeSnapshot and VolumeSnapshotData
- Add snapshot filter to hide and show snapshots
Signed-off-by: Akash Srivastava <akash.srivastava@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>
Now that we enter the container namespace to fetch IPs for every
container, there is no need to have 'weave ps' do it.
This does mean we lose Weave MAC addresses, but that is a rather
idiosyncratic feature anyway.
Previously the only roundtrip test was for an empty report.
This test has fake data similar to that found in real reports.
'Metrics' does not round-trip exactly, so a DeepEqual workaround is
added for that.
It is unused and none of the adjacency mapping code in the renderer
takes any notice of it. Removing this shrinks the report size.
Edges were introduced in #838. At the time we had an experimental
packet sniffer under experimental/sniff/sniffer.go. That got removed
in #1646.
We can resurrect this if we ever decide to add meta data to edges.
Instead of using Docker, because after Weave Net 2.0 there are no proxy nor
plugin containers.
This has the drawback of not detecting the plugin/proxy in systems running
Weave Net < 2.0 , but I think we can live with it.
the information is constant and already present in the id, so we can
extract it from there.
That reduces the report size and improves report encoding/decoding
performance. It should reduce memory usage too and improve report
merging performance too.
NB: Probes with this change are incompatible with old apps.
Symptoms:
> app/control_router.go:44:38: error strings should not be capitalized or end with punctuation or a newline
This is blocking the build on:
https://circleci.com/gh/kinvolk/scope/363
gofmt load_container_filters.go
removed the environment variable for container label filters
Added the --app.container-label-filter command line argument, and load_container_filters.go now uses the results from that
Changed init() to InitializeTopologies()
Changed init() to InitializeTopologies() so that it can be called after the container filters are loaded from the command line argument. init() executes before main() in prog/main.go, so the flag parsing isn't finished before init() is called
Applied lint fixes
fixed lint issues
brought back the init function for api_topologies.go
Addressed many of the PR comments, except escaping colons
Renamed IsDesired to HasLabel in render/filters.go
Allows for the user to escape colons
added registry function for modifying the container filters
created a separate function that parses the container filter flags
simplified registry.addContainerFilters()
addressed review comments
switched API Topology Description IDs to constants
addressed review comments
joined constants
added test functions
addressed most of the review comments
Changed containerLabelFilters to an array of APItopologyOptions, placing the parsing in the Set() function. Removed parsing from HasLabel in render/filters.go
refactored code
added test that applies to the container filtering by labels
applied golint
made Registry items private and added a MakeRegistry() function
fixed usage of topologyRegistry.RendererForTopology
Added container label filters by exclusion
minor update to report_fixture
Modified container labels test to use existing report
I added labels to the existing containers in the fixed report for testing.
refactored code
refactored code
further code refactoring
addressed @ijsnellf's review comments
unexported Registry, and reduced duplicate code
addressed @ijsnellf's review comments
Addressed review comments
Addressed final review comments
* Helps reduce garbage (MakeMetric() now takes a slice and there's a shorter version MakeSingletonMetric())
* Fixes bug computing Max (Min) in samples since using MakeMetric()
was causing a default Max/Min of zero.
* Simplifies code a bit
Squash of:
* We have to keep all the container hostnames until the end so we can
count how many we've filtered
* Adding tests for ContainerHostnameRenderer and PodServiceRenderer with
filters
* Because we filter on image name we need the image name before
filtering
* Alternative approach to passing decorators.
* Refactor out some of the decorator capture
* Don't memoise decorated calls to Render
* Fixing filtered counts on containers topology
Tricky, because we need the filters to be silent sometimes (when they're
in the middle), but not when they're at the top, so we take the "top"
filter's stats. However, this means we have to compose all
user-specified filters into a single Filter layer, so we can get all
stats.
There are no more Silent filters, as all filters are silent (unless they
are at the top).
Additionally, I clarified some of the filters as their usage/terminology
was inconsistent and confused. Now Filter(IsFoo, ...) *keeps* only nodes
where IsFoo is true.
Squash of:
* Include plugins in the report
* show plugin list in the UI
* moving metric and metadata templates into the probe reports
* update js for prime -> priority
* added retry to plugin handshake
* added iowait plugin
* review feedback
* plugin documentation
Squash of:
- including children in topologies_test.go
- report.Node.Prune should prune children also
- rewrote ShortLivedInternetConnections test to express its intent
- adding tests for detail Summary rendering
Squash of:
- use detailed.Summaries to render topology nodes
- ban merging nodes of different topologies (they should be mapped)
- need to prune parents when mapping node types
- render container images by id if they have no name
- remove separate render ids and prune parents in NewDerived*
- don't render metrics/metadata for groups of nodes
- fixing up tests
- removing pending unit tests (for mapping.go, for now)
- updating experimental dir for RenderableNode removal
