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feat(cli): add trafficgen command for load testing (#7307)

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This PR adds a scaletest workspace-traffic command for load testing. This opens a
ReconnectingPTY connection to each scaletest workspace (via coderd) and 
concurrently writes and reads random data to/from the PTY. Payloads are of the
form #${RANDOM_ALPHANUMERIC_STRING}, which essentially drops garbage
comments in the remote shell, and should not result in any commands being executed.
This commit is contained in:
Cian Johnston
2023-05-05 10:34:58 +01:00
committed by GitHub
parent a172e073e3
commit 08fb9a6f1b
11 changed files with 787 additions and 79 deletions
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cli/testdata/coder_scaletest_--help.golden
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@@ -10,6 +10,7 @@ Run a scale test against the Coder API
online. Optionally runs a command inside each
workspace, and connects to the workspace over
WireGuard.
workspace-traffic Generate traffic to scaletest workspaces through coderd
---
Run `coder --help` for a list of global options.
cli/testdata/coder_scaletest_workspace-traffic_--help.golden
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@@ -0,0 +1,55 @@
Usage: coder scaletest workspace-traffic [flags]
Generate traffic to scaletest workspaces through coderd
Options
--bytes-per-tick int, $CODER_SCALETEST_WORKSPACE_TRAFFIC_BYTES_PER_TICK (default: 1024)
How much traffic to generate per tick.
--cleanup-concurrency int, $CODER_SCALETEST_CLEANUP_CONCURRENCY (default: 1)
Number of concurrent cleanup jobs to run. 0 means unlimited.
--cleanup-job-timeout duration, $CODER_SCALETEST_CLEANUP_JOB_TIMEOUT (default: 5m)
Timeout per job. Jobs may take longer to complete under higher
concurrency limits.
--cleanup-timeout duration, $CODER_SCALETEST_CLEANUP_TIMEOUT (default: 30m)
Timeout for the entire cleanup run. 0 means unlimited.
--concurrency int, $CODER_SCALETEST_CONCURRENCY (default: 1)
Number of concurrent jobs to run. 0 means unlimited.
--job-timeout duration, $CODER_SCALETEST_JOB_TIMEOUT (default: 5m)
Timeout per job. Jobs may take longer to complete under higher
concurrency limits.
--output string-array, $CODER_SCALETEST_OUTPUTS (default: text)
Output format specs in the format "<format>[:<path>]". Not specifying
a path will default to stdout. Available formats: text, json.
--tick-interval duration, $CODER_SCALETEST_WORKSPACE_TRAFFIC_TICK_INTERVAL (default: 100ms)
How often to send traffic.
--timeout duration, $CODER_SCALETEST_TIMEOUT (default: 30m)
Timeout for the entire test run. 0 means unlimited.
--trace bool, $CODER_SCALETEST_TRACE
Whether application tracing data is collected. It exports to a backend
configured by environment variables. See:
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/protocol/exporter.md.
--trace-coder bool, $CODER_SCALETEST_TRACE_CODER
Whether opentelemetry traces are sent to Coder. We recommend keeping
this disabled unless we advise you to enable it.
--trace-honeycomb-api-key string, $CODER_SCALETEST_TRACE_HONEYCOMB_API_KEY
Enables trace exporting to Honeycomb.io using the provided API key.
--trace-propagate bool, $CODER_SCALETEST_TRACE_PROPAGATE
Enables trace propagation to the Coder backend, which will be used to
correlate server-side spans with client-side spans. Only enable this
if the server is configured with the exact same tracing configuration
as the client.
---
Run `coder --help` for a list of global options.