When CCACHE_BASEDIR is set, ccache will rewrite absolute paths to
relative paths in order to allow compilation in different source
directories. We do not need this feature on Cirrus (the checkout
is always in /zeek) and using absolute paths avoids
confusion/normalization needs for the gcov -p results.
We could consider removing the global CCACHE_BASEDIR, but it'd
bust the ccache of every other task, too.
* origin/topic/timw/telemetry-follow-up:
Switch to zeek fork of prometheus-cpp
Remove unnecessary shared_from_this on instrument classes
Restore label_names field in MetricOpts record
Change how we count FDs on Linux to fix zeekctl stop issues
Update zeekctl tests for telemetry rework
Use forward declarations of prometheus-cpp types in telemetry::Manager
Add prometheus-cpp files to install set for plugins to use
Fix a memory leak with the CivetWeb callbacks in telemetry
Fix a bunch of copy-instead-of-move findings from Coverity
Move telmetry label names out of opts records, into main metric records
Ensure the order of label values matches the label names
Remove prefix column from telemetry.log
Fix race condition by pre-building the cluster json data for services.json
Set running_under_test for scripts.base.frameworks.logging.telemetry test
* origin/topic/vern/script-opt-maint.Jun24:
script optimization baseline tweaks due to recent minor changes
updated list of BiFs for script optimization
addressed some Coverity nits
improved error cascade for invalid attributes
* topic/timw/prometheus-cpp-3: (35 commits)
Update docs submodule [nomail] [skip ci]
Add type aliases for instrument and family shared_ptrs
Update NEWS for double and is_sum changes
Remove is_sum arguments from counters and gauges
Change all instruments to only handle doubles
Add comment to telemetry::Manager::InitPostScript
Remove all of the ZEEK_METRICS_ environment variables
Fix header comments in scripts/policy/frameworks/telemetry/prometheus.zeek
Change all prometheus #includes to use angle brackets
Update zeekctl submodule for metrics_port node.cfg option
Regenerate docs [nomail]
Remove the is_sum argument from BIF histogram creation methods
Update NEWS for Telemetry rework
Remove Telemetry::metrics_export_prefixes option
Validate that label names are constant in non-zeek metrics
Avoid calling Collect() in counter/gauge Value() methods if not needed
Fix some determinism issues with btests
Temporarily disable the scripts/base/frameworks/telemetry/internal-metrics btest
Fix the scripts.policy.frameworks.telemetry.prometheus btest to use the service discovery endpoint
Btest updates due to recent changes
...
