# GET /metrics returns same list of metrics

exec sh -x ./test.sh &
karma.bin-should-work --pid-file=karma.pid --alertmanager.uri=http://127.0.0.1 --listen.address=127.0.0.1 --listen.port=8083
! stdout .
cmp stderr stderr.txt
cmp curl.txt metrics.txt

-- metrics.txt --
# HELP go_gc_duration_seconds A summary of the pause duration of garbage collection cycles.
# TYPE go_gc_duration_seconds summary
go_gc_duration_seconds{quantile="0"}
go_gc_duration_seconds{quantile="0.25"}
go_gc_duration_seconds{quantile="0.5"}
go_gc_duration_seconds{quantile="0.75"}
go_gc_duration_seconds{quantile="1"}
go_gc_duration_seconds_sum
go_gc_duration_seconds_count
# HELP go_goroutines Number of goroutines that currently exist.
# TYPE go_goroutines gauge
go_goroutines
# HELP go_memstats_alloc_bytes Number of bytes allocated and still in use.
# TYPE go_memstats_alloc_bytes gauge
go_memstats_alloc_bytes
# HELP go_memstats_alloc_bytes_total Total number of bytes allocated, even if freed.
# TYPE go_memstats_alloc_bytes_total counter
go_memstats_alloc_bytes_total
# HELP go_memstats_buck_hash_sys_bytes Number of bytes used by the profiling bucket hash table.
# TYPE go_memstats_buck_hash_sys_bytes gauge
go_memstats_buck_hash_sys_bytes
# HELP go_memstats_frees_total Total number of frees.
# TYPE go_memstats_frees_total counter
go_memstats_frees_total
# HELP go_memstats_gc_cpu_fraction The fraction of this program's available CPU time used by the GC since the program started.
# TYPE go_memstats_gc_cpu_fraction gauge
go_memstats_gc_cpu_fraction
# HELP go_memstats_gc_sys_bytes Number of bytes used for garbage collection system metadata.
# TYPE go_memstats_gc_sys_bytes gauge
go_memstats_gc_sys_bytes
# HELP go_memstats_heap_alloc_bytes Number of heap bytes allocated and still in use.
# TYPE go_memstats_heap_alloc_bytes gauge
go_memstats_heap_alloc_bytes
# HELP go_memstats_heap_idle_bytes Number of heap bytes waiting to be used.
# TYPE go_memstats_heap_idle_bytes gauge
go_memstats_heap_idle_bytes
# HELP go_memstats_heap_inuse_bytes Number of heap bytes that are in use.
# TYPE go_memstats_heap_inuse_bytes gauge
go_memstats_heap_inuse_bytes
# HELP go_memstats_heap_objects Number of allocated objects.
# TYPE go_memstats_heap_objects gauge
go_memstats_heap_objects
# HELP go_memstats_heap_released_bytes Number of heap bytes released to OS.
# TYPE go_memstats_heap_released_bytes gauge
go_memstats_heap_released_bytes
# HELP go_memstats_heap_sys_bytes Number of heap bytes obtained from system.
# TYPE go_memstats_heap_sys_bytes gauge
go_memstats_heap_sys_bytes
# HELP go_memstats_last_gc_time_seconds Number of seconds since 1970 of last garbage collection.
# TYPE go_memstats_last_gc_time_seconds gauge
go_memstats_last_gc_time_seconds
# HELP go_memstats_lookups_total Total number of pointer lookups.
# TYPE go_memstats_lookups_total counter
go_memstats_lookups_total
# HELP go_memstats_mallocs_total Total number of mallocs.
# TYPE go_memstats_mallocs_total counter
go_memstats_mallocs_total
# HELP go_memstats_mcache_inuse_bytes Number of bytes in use by mcache structures.
# TYPE go_memstats_mcache_inuse_bytes gauge
go_memstats_mcache_inuse_bytes
# HELP go_memstats_mcache_sys_bytes Number of bytes used for mcache structures obtained from system.
# TYPE go_memstats_mcache_sys_bytes gauge
go_memstats_mcache_sys_bytes
# HELP go_memstats_mspan_inuse_bytes Number of bytes in use by mspan structures.
# TYPE go_memstats_mspan_inuse_bytes gauge
go_memstats_mspan_inuse_bytes
# HELP go_memstats_mspan_sys_bytes Number of bytes used for mspan structures obtained from system.
# TYPE go_memstats_mspan_sys_bytes gauge
go_memstats_mspan_sys_bytes
# HELP go_memstats_next_gc_bytes Number of heap bytes when next garbage collection will take place.
# TYPE go_memstats_next_gc_bytes gauge
go_memstats_next_gc_bytes
# HELP go_memstats_other_sys_bytes Number of bytes used for other system allocations.
# TYPE go_memstats_other_sys_bytes gauge
go_memstats_other_sys_bytes
# HELP go_memstats_stack_inuse_bytes Number of bytes in use by the stack allocator.
# TYPE go_memstats_stack_inuse_bytes gauge
go_memstats_stack_inuse_bytes
# HELP go_memstats_stack_sys_bytes Number of bytes obtained from system for stack allocator.
# TYPE go_memstats_stack_sys_bytes gauge
go_memstats_stack_sys_bytes
# HELP go_memstats_sys_bytes Number of bytes obtained from system.
# TYPE go_memstats_sys_bytes gauge
go_memstats_sys_bytes
# HELP go_threads Number of OS threads created.
# TYPE go_threads gauge
go_threads
# HELP karma_alertmanager_errors_total Total number of errors encounter when requesting data from Alertmanager API
# TYPE karma_alertmanager_errors_total counter
karma_alertmanager_errors_total{alertmanager="default",endpoint="alerts"}
karma_alertmanager_errors_total{alertmanager="default",endpoint="silences"}
# HELP karma_alertmanager_up 1 if last call to Alertmanager API succeeded
# TYPE karma_alertmanager_up gauge
karma_alertmanager_up{alertmanager="default"}
# HELP karma_collect_cycles_total Total number of alert collection cycles run
# TYPE karma_collect_cycles_total counter
karma_collect_cycles_total{alertmanager="default"}
# HELP promhttp_metric_handler_requests_in_flight Current number of scrapes being served.
# TYPE promhttp_metric_handler_requests_in_flight gauge
promhttp_metric_handler_requests_in_flight
# HELP promhttp_metric_handler_requests_total Total number of scrapes by HTTP status code.
# TYPE promhttp_metric_handler_requests_total counter
promhttp_metric_handler_requests_total{code="200"}
promhttp_metric_handler_requests_total{code="500"}
promhttp_metric_handler_requests_total{code="503"}
-- stderr.txt --
level=info msg="Version: dev"
level=info msg="Configured Alertmanager source" name=default proxy=false readonly=false uri=http://127.0.0.1
level=info msg="Writing PID file" path=karma.pid
level=info msg="Initial Alertmanager collection"
level=info msg="Pulling latest alerts and silences from Alertmanager"
level=info msg="Collecting alerts and silences" alertmanager=default
level=info msg="GET request" timeout=40 uri=http://127.0.0.1/metrics
level=error msg="Request failed" error="Get \"http://127.0.0.1/metrics\": dial tcp 127.0.0.1:80: connect: connection refused" alertmanager=default uri=http://127.0.0.1
level=error msg="Collection failed" error="Get \"http://127.0.0.1/api/v2/status\": dial tcp 127.0.0.1:80: connect: connection refused" alertmanager=default
level=info msg="Collection completed"
level=info msg="Done, starting HTTP server"
level=info msg="Starting HTTP server" address=127.0.0.1:8083
level=info msg="Shutting down HTTP server"
level=info msg="HTTP server shut down"
level=info msg="Removing PID file" path=karma.pid
-- test.sh --
#!/bin/sh

while [ ! -f karma.pid ]; do sleep 1 ; done
sleep 5
curl -s http://localhost:8083/metrics | grep -vE 'process_|go_info' | perl -pe "s/^([a-zA-Z].+)[ ]([0-9\.\-\+eE]+)$/\1/g" > curl.txt
cat karma.pid | xargs kill
