weave-scope/CHANGELOG.md

Release 0.13.1

Bug Fixes:

• Make pipes work with scope.weave.works #1099 #1085 #994
• Don't panic when checking the version fails #1117

Release 0.13.0

Note: This release come with big performance improvements, cutting the probe's CPU usage by 70% and the app's CPU usage by up to 85%. See detailed performance improvement-related changes below:

Performance improvements:

• Improve codec performance #916 #1002 #1005 #980
• Reduce amount of objects allocated by the codec #1000
• Refactor app for multitenancy #997
• Improve performance of docker stats obtention #989
• Rate-limit reading proc files #912 #905
• Compile k8s selectors once (not for each pod) #918
• Fix reading of network namespace inodes #898

New features and enhancements:

• Node shapes for different topologies, e.g. heptagons for Kubernetes pods #884 #1006 #1037
• Force-relayout button that may help with topology layouts that have lots of edge crossings #981
• Download button to save the current node graph as SVG file #1027
• Replace Show More buttons with carets w/ counts #1012 #1029
• Improve contrast of default view #979
• High contrast mode button for viewing scope on projectors #954 #984
• Gather file descriptors as process metric #961
• Show Docker Labels in their own table in details panel #904 #965
• Improve highlighting of selected topology #936 #964
• Details: only show important metadata by default, expand the rest #946
• Reorder the children tables in the details panel by importance #941
• Shorten docker container and image IDs in the details panel. #930
• Shorten some details panel labels which were truncated #940
• Sparklines update every second and show 60sec history #795
• Add Container Count column to container images table #919
• Periodically check for newer versions of scope. #907
• Rename Applications -> Process, sort topologies by rank. #866
• Rename 'by hostname' to 'by dns name' #856
• Add container uptime and restart count to details panel. #853
• Use connection directions from conntrack for improved layout flow #967
• Support for container controls in Kubernetes #1043
• Add debug logging #935

Bug fixes:

• Use TCP for weave dns to fix autoclustering #1038
• Add ping/pong to websocket protocol to prevent websocket connections being dropped when traversing loadbalancers #995
• Handle closing of docker events channel gracefully #1014
• Don't show blank IPs metadata row for containers with no IP #960
• Remove pointer math (comparison) from render caching, as it is unreliable #962
• set TERM=xterm on execs to work around docker issue 9299 #969
• Fix weave tagger crash #976
• Use Sirupsen/logrus logger in the Weave tagger #974
• Fix JSON encoding for fixedprobe #975
• Don't render any metrics/metadata for uncontained node #956
• Update go-dockerclient to fix bug with docker 1.10 #952
• Show nice column labels when no children have metrics #950
• Fixes process-by-name layout with ./foo and /foo nodes #948
• Deal with starting / stopping weave whilst scope is running #867
• Remove host links that link to themselves in details panel #917
• Just show the untruncated label in the tooltip on children #911
• Taking a read lock twice only works most of the time. #889
• Details panel table header looks up label in all rows #895
• Fixes some fields overflowing badly in details panel in Chrome 48 #892
• Stop details cards popping up over the terminal. #882
• Fixes host node/details panel color mismatch #880
• Don't log expected websocket errors #1024
• Overwrite /etc/weave/apps, because it might already exist #959
• Log a warning when reporters or taggers take too long to generate #944
• Minor refactor of backend metadata and metric rendering #920
• Add some tests, and a zero-value for report.Sets #903

Build improvements and cleanup:

• Disable checkpointing in tests. #1031
• Turn off GC for builds. #1023
• Bump template name to get latest version of docker. #998
• Fixes building scope outside of a container. #901
• Don't need sudo when DOCKER_HOST is tcp. #888
• Disable npm progress to speed up build #894
• Refactoring deepequal to satisfy linter #890

Documentation:

• Document how to obtain profiles without go tool pprof #993
• Use short URL for scope download #1018
• Added note about docker and go dependency to the readme #966
• Update readme and images. #885
• Update approach to trigger signal dumps #883

Release 0.12.0

New features and enhancements:

• New, interactive contextual details panel #752
• Gather per-process CPU and memory metrics #767
• k8s: Use service account token by default and improve error logging #808
• k8s: Filter out pause as a system container to declutter view #823
• k8s: Render container names from label "io.kubernetes.container.name" #810
• Probes now use TLS against scope.weave.works by default #785
• Allow dismissing a disconnected terminal w/ <esc> #819

Bug fixes:

• General k8s fixups #834
• Use argv[0] for process name, differentiate scope app and probe. #796
• Don't panic if you don't understand the message on the control WS. #793
• Highlight a single unconnected node on hover. #790
• Fixes to Terminal resizing and key support #766 #780 #817
• Correctly collapse nodes in the Container Images view when they use non-standard port. #824
• Stop scope crashing chrome when we get "long" edges. #837
• Fix node controls so they behave independently across nodes #797

Build improvements and cleanup:

• Update to latest tools.git #816
• Update to latest go-dockerclient #788
• Speed up builds #775 #789
• Speed up tests #799 #807
• Split and move xfer package. #794
• Add more tests to procspy #751 #781
• Build example app in container. #831
• Various improvements to build & test #829

Release 0.11.1

Bug fix:

• Scrape /proc/PID/net/tcp6 such that we see both ends of local connections change

Release 0.11.0

New features:

• Add a terminal to the UI with the ability to attach to, or exec a shell in, a Docker container. #650 #735 #726
• Added scope version command #750
• Various CPU usage reductions for probe #742 #741 #737
• Show hostname of app you are connected to in the bottom right of the UI #707
• Add host memory and CPU usage metrics to the details panel #711
• Add json support to app POST /api/report #722
• Update the docker version we embed into the scope image to 1.6.2 in sync with weave 1.3 changes. #702
• Show a spinner while node details are loading #691
• Deterministic coloring of nodes based on rank and label #694

Bug fixes:

• Mitigate one-line-of-nodes layouts (when graph has few connections), layout in rectangle instead #679
• When filtering unconnected nodes in the processes view, also filter nodes that are only connected to themselves. #706
• Correctly hide container based on docker labels on the container image. #705
• Show details for stopped container in the default view, by not applying filters to the node details endpoints. #704 #701
• Fix render issues in Safari #686
• Take default topology option if missing in URL #678
• Don't treat missing node as UI error #677
• Unset previous details when deselecting a node #675
• Add x to close details panel again #673

Documentation:

• Add basic security warning. #703
• Add basic kubernetes how-to to the readme #669
• Document debug options for developers #723
• Add 'getting help' section and update screenshot #709

Build improvements and cleanup:

• Don't go get weave, git clone it so weave build errors don't affect Scope. #743
• Reduce image size and build time by merging scope probe and app binaries. #732
• Cleaning up some dead code around edges and edgemetadata #730
• Make make build the UI #728
• Omit controls field from json if emtpy. #725
• JS to ES2015 #712
• Upgraded react to 0.14.3 #687
• Cleaned up node-details-table #676
• Fix react key warning #672

Release 0.10.0

Notes:

• Due to the Scope UI now being able to start/stop/restart Docker containers, it is not wise to have it accessible to untrusted parties.

New features:

• Add lifecycle controls (start/stop/restart) for Docker containers #598 #642
• Add sparklines to the UI for some metrics #622
• Show a message when the selected topology is empty #505

Bug fixes:

• Change node layout incrementally to reduce re-layouts #593
• Improve responsiveness of UI updates to container state changes #628 #640
• Handle DNS Resolution to a set of names #639
• Correctly show node counts for sub-topologies #621
• Allow scope to start after being upgraded #617
• Prevent a stranded pseudo-nodes from appearing in the container view #627 #674
• Parallelise and improve the testing infrastructure #614 #618 #644

Release 0.9.0

New features:

• Add basic Kubernetes views for pods and services #441
• Support for Weave 1.2 #574
• Add containers-by-hostname view #545
• Build using Go 1.5, with vendored dependencies #584
• Make scope launch work from remote hosts, with an appropriately defined DOCKER_HOST #524
• Increase DNS poll frequency such that Scope clusters more quickly #524
• Add scope command for printing the Docker commands used to run Scope #553
• Include some basic documentation on how to run Scope #572
• Warn if the user tries to run Scope on Docker versions <1.5.0 #557
• Add support for loading the Scope UI from https endpoints #572
• Add support for probe sending reports to https endpoints #575

Bug fixes:

• Correctly track short-lived connections from the internet #493
• Fix a corner case where short-lived connections between containers are incorrectly attributed #577
• Ensure service credentials are sent when doing initial probe<->app handshake #564
• Sort reverse-DNS-resolved names to mitigate some UI fluttering #562
• Don't leak goroutines in the probe #531
• Rerun background conntrack processes if they fail #581
• Build and test using Go 1.5 and vendor all dependencies #584
• Fix "close on nil channel" error on shutdown #599

Release 0.8.0

New features:

• Show message in the UI when topologies exceed size limits. #474
• Provide container image information in detail pane for containers. #398
• When filtering out system containers, also filter out pseudo nodes, if they were only connected to system containers. #483
• Show number of filtered nodes in status pane. #509

Bug fixes:

• Prevent detail pane from hiding nodes on click-to-focus. #495
• Stop radial view from bouncing in some circumstances. #496
• Make NAT tracking component more resilient to failure. #506
• Prevent duplicate reports from reaching the same app. #463
• Improve consistency of edge directionality in some use-cases. #373
• Ensure probe, app, and container shut down cleanly. #424 #478

Release 0.7.0

New features:

• Show short-lived connections in the containers view. #356 #447
• Details pane:
  1. Add more information:
  • Docker labels. #400
  • Weave IPs/hostnames/MACs and Docker IPs. #394 #396
  • Host/container context when ambiguous. #387
  2. Present it in a more intuitive way:
  • Show hostnames instead of IPs when possible. #404 #451
  • Merge all the connection-related information into a single table. #322
  • Include relevant information in the table titles. #387
  • Stop including empty fields. #370
• Allow filtering out system containers (e.g. Weave and Scope containers) and unconnected containers. System containers are filtered out by default. #420 #337 #454 #457
• Improve rendering by making edges' directions flow from client to server. #355
• Highlight selected node #473
• Animate Edges during UI transtions #445
• New status bar on the bottom left of the UI #487
• Show more information for pseudo nodes where possible - such as processes for uncontained, and connected to/from the internet. #249 #401 #426
• Truncate node names and text in the details pane. #429 #430
• Amazon ECS: Stop displaying mangled container names, display the original Container Definition name instead. #456
• Annotate processes in containers with the container name, in the Applications view. #331
• Improve graph transitions between updates. #379
• Reduce CPU usage of Scope probes #470 #484
• Make report propagation more reliable #459
• Support Weave 1.1 status interface #389

Bug fixes:

• Trying to reconnect.. in UI even though its connected. #392
• The Applications view goes blank after a few seconds. #442
• Frequently getting disconnected lines in UI #460
• Panic due to closing request body #480

Release 0.6.0

New features:

• Probes now push data to the app, instead of the app pulling it. #342
• Allow probe and app to be started independently, via --no-app and --no-probe flags. #345
• Close details pane when changing topology view. #297
• Add support for --probe.foo=bar style flags, in addition to --probe.foo bar, which is already supported. #347
• Added X-Scope-Probe-ID header to identify probes when sending information to the app. #351

Bug fixes:

• Update scope script to work with master version of weave, where DNS has been embedded in the router. #321
• Fixed regression where process names weren't appearing for Darwin probes. #320
• Fixed rendering bug resulting in orphaned nodes. #339
• App now only logs to stderr, to match the probe. #343
• Use relative paths for all URLs in the UI. #344
• Removed temporary containers created by the scope script. #348

Experimental features:

• Added support for pcap based packet sniffing, to provide bandwidth usage information. It can be enabled via the --capture flag. When enabled the probe will monitor packets for a portion of the time, and estimate bandwidth usage. Network throughput will be affected if capture is enabled. #317

Release 0.5.0

New features:

• Aggregate all connection information into a single table in the details dialog. #298
• Renamed binaries to scope-app and scope-probe #293
• Group containers topology by name only, and not version #291
• Make intra-scope communication traverse the weave network if present. #71

Bug fixes:

• Reduced memory usage #266

Release 0.4.0

New features:

• Include kernel version and uptime in host details. #274
• Include command line and number of threads in process details. #272
• Include Docker port mapping, entrypoint, memory usage and creation date in container details. #262
• Order tables in details panel from least granular to most granular. #261
• Show all container images (even ones without active connections) in the containers-by-image view. #230
• Produce process and container views by merging endpoint topology with their respective topologies, such that the origins in the details panel always aggregate correctly. #228
• In containers view, show "Uncontained" nodes for each host if they have active connections. #127
• Show connection status in the UI. #162

Bug fixes:

• Reduce CPU usage by caching walks of /proc. #284
• Trim whitespace of process names such that the details panel functions correctly in the process-by-name view. #281
• Correctly scope addresses on Docker bridge such that processes on different hosts are not incorrectly shown as communicating. #264
• Correctly show connections between nodes which traverse a Docker port mapping. #245
• Make scope script fail if docker run fails. #214
• Prevent left over nodes in the UI when the connection is dropped or Scope is restarted. #162

Release 0.3.0

• Show containers, even when they aren't communicating.
• Expand topology selectors more descriptive, and remove the grouping button.
• Fix overflow rendering bugs in the detail pane.
• Render pseudonodes with less saturation.

Release 0.2.0

• Initial release.