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CE-1977: Include coredump check to ioc-exporter

Henrique Silva requested to merge (removed):CE-1977_add_coredump_check into master

Tested on ccce-test-ioc-01 by manually updating the exporter service:

[henriquesilva@ccce-test-ioc-01 ~]$ ls /opt/iocs/CCCE_SC-IOC-040/
ioc.yml  PVS.list  README.md  st.cmd  test.db

[henriquesilva@ccce-test-ioc-01 ~]$ curl http://localhost:12110/api/v1/query
>>>>>>>>> snip snip <<<<<<<<<<<
# HELP ioc_coredump_exists e3 IOC has generated a coredump
# TYPE ioc_coredump_exists gauge
ioc_coredump_exists{ioc="CCCE:SC-IOC-040"} 0.0
ioc_coredump_exists{ioc="CCCE:SC-IOC-020"} 0.0

[henriquesilva@ccce-test-ioc-01 ~]$ ps aux | grep softIoc
iocuser   1119  2.4  0.9 1252928 18296 pts/0   Sl+  12:04   8:35 /epics/base-7.0.5/bin/linux-x86_64/softIocPVA -D /epics/base-7.0.5/dbd/softIocPVA.dbd /tmp/systemd-private-e3-iocsh-iocuser/tmp.u85Ww1jY9y_iocsh_3.4.1-PID-1075
iocuser   1120  3.3  0.7 1247092 14508 pts/1   Sl+  12:04  11:40 /epics/base-7.0.7/bin/linux-x86_64/softIocPVA -D /epics/base-7.0.7/dbd/softIocPVA.dbd /tmp/systemd-private-e3-iocsh-iocuser/tmp.kWz9PnI25c_iocsh_5.0.0-PID-1078

[henriquesilva@ccce-test-ioc-01 ~]$ sudo kill -11 1120

[henriquesilva@ccce-test-ioc-01 ~]$ ls /opt/iocs/CCCE_SC-IOC-040/
core  ioc.yml  PVS.list  README.md  st.cmd  test.db

[henriquesilva@ccce-test-ioc-01 ~]$ curl http://localhost:12110/api/v1/query
>>>>>>>>> snip snip <<<<<<<<<<<
# HELP ioc_coredump_exists e3 IOC has generated a coredump
# TYPE ioc_coredump_exists gauge
ioc_coredump_exists{ioc="CCCE:SC-IOC-040"} 1.0
ioc_coredump_exists{ioc="CCCE:SC-IOC-020"} 0.0

Closes CE-1977

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