summaryrefslogtreecommitdiffstats
path: root/packaging/installer/kickstart.sh
blob: 3f1197407603e5a305056cd5abde6884cdc08fa7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
#!/bin/sh
#
# SPDX-License-Identifier: GPL-3.0-or-later

# ======================================================================
# Constants

KICKSTART_OPTIONS="${*}"
PACKAGES_SCRIPT="https://raw.githubusercontent.com/netdata/netdata/master/packaging/installer/install-required-packages.sh"
PATH="${PATH}:/usr/local/bin:/usr/local/sbin"
REPOCONFIG_URL_PREFIX="https://packagecloud.io/netdata/netdata-repoconfig/packages"
REPOCONFIG_VERSION="1-1"
TELEMETRY_URL="https://posthog.netdata.cloud/capture/"
START_TIME="$(date +%s)"

# ======================================================================
# Defaults for environment variables

SELECTED_INSTALL_METHOD="none"
INSTALL_TYPE="unknown"
INSTALL_PREFIX=""
NETDATA_AUTO_UPDATES="1"
NETDATA_CLAIM_ONLY=0
NETDATA_CLAIM_URL="https://app.netdata.cloud"
NETDATA_DISABLE_CLOUD=0
NETDATA_ONLY_BUILD=0
NETDATA_ONLY_NATIVE=0
NETDATA_ONLY_STATIC=0
NETDATA_REQUIRE_CLOUD=1
RELEASE_CHANNEL="nightly"

NETDATA_DISABLE_TELEMETRY="${DO_NOT_TRACK:-0}"
NETDATA_TARBALL_BASEURL="${NETDATA_TARBALL_BASEURL:-https://storage.googleapis.com/netdata-nightlies}"
NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS:-""}"
TELEMETRY_API_KEY="${NETDATA_POSTHOG_API_KEY:-mqkwGT0JNFqO-zX2t0mW6Tec9yooaVu7xCBlXtHnt5Y}"

if echo "${0}" | grep -q 'kickstart-static64'; then
  NETDATA_ONLY_STATIC=1
fi

if [ ! -t 1 ]; then
  INTERACTIVE=0
else
  INTERACTIVE=1
fi

# ======================================================================
# Usage info

usage() {
  cat << HEREDOC
USAGE: kickstart.sh [options]
       where options include:

  --non-interactive          Do not prompt for user input. (default: prompt if there is a controlling terminal)
  --interactive              Prompt for user input even if there is no controlling terminal.
  --dont-start-it            Do not start the agent by default (only for static installs or local builds)
  --stable-channel           Install a stable version instead of a nightly build (default: install a nightly build)
  --nightly-channel          Install a nightly build instead of a stable version
  --no-updates               Do not enable automatic updates (default: enable automatic updates)
  --auto-update              Enable automatic updates.
  --disable-telemetry        Opt-out of anonymous statistics.
  --native-only              Only install if native binary packages are available.
  --static-only              Only install if a static build is available.
  --build-only               Only install using a local build.
  --reinstall                Explicitly reinstall instead of updating any existing install.
  --reinstall-even-if-unsafe Even try to reinstall if we don't think we can do so safely (implies --reinstall).
  --disable-cloud            Disable support for Netdata Cloud (default: detect)
  --require-cloud            Only install if Netdata Cloud can be enabled. Overrides --disable-cloud.
  --install <path>           Specify an installation prefix for local builds (default: autodetect based on system type).
  --claim-token              Use a specified token for claiming to Netdata Cloud.
  --claim-rooms              When claiming, add the node to the specified rooms.
  --claim-only               If there is an existing install, only try to claim it, not update it.
  --claim-*                  Specify other options for the claiming script.
  --no-cleanup               Don't do any cleanup steps. This is intended to help with debugging the installer.

Additionally, this script may use the following environment variables:

  TMPDIR:                    Used to specify where to put temporary files. On most systems, the default we select
                             automatically should be fine. The user running the script needs to both be able to
                             write files to the temporary directory, and run files from that location.
  ROOTCMD:                   Used to specify a command to use to run another command with root privileges if needed. By
                             default we try to use sudo, doas, or pkexec (in that order of preference), but if
                             you need special options for one of those to work, or have a different tool to do
                             the same thing on your system, you can specify it here.
  DO_NOT_TRACK               If set to a value other than 0, behave as if \`--disable-telemetry\` was specified.
  NETDATA_INSTALLER_OPTIONS: Specifies extra options to pass to the static installer or local build script.

HEREDOC
}

# ======================================================================
# Telemetry functions

telemetry_event() {
  if [ "${NETDATA_DISABLE_TELEMETRY}" -eq 1 ]; then
    return 0
  fi

  now="$(date +%s)"
  total_duration="$((now - START_TIME))"

  if [ -e "/etc/os-release" ]; then
    eval "$(grep -E "^(NAME|ID|ID_LIKE|VERSION|VERSION_ID)=" < /etc/os-release | sed 's/^/HOST_/')"
  fi

  if [ -z "${HOST_NAME}" ] || [ -z "${HOST_VERSION}" ] || [ -z "${HOST_ID}" ]; then
    if [ -f "/etc/lsb-release" ]; then
      DISTRIB_ID="unknown"
      DISTRIB_RELEASE="unknown"
      DISTRIB_CODENAME="unknown"
      eval "$(grep -E "^(DISTRIB_ID|DISTRIB_RELEASE|DISTRIB_CODENAME)=" < /etc/lsb-release)"
      if [ -z "${HOST_NAME}" ]; then HOST_NAME="${DISTRIB_ID}"; fi
      if [ -z "${HOST_VERSION}" ]; then HOST_VERSION="${DISTRIB_RELEASE}"; fi
      if [ -z "${HOST_ID}" ]; then HOST_ID="${DISTRIB_CODENAME}"; fi
    fi
  fi

  KERNEL_NAME="$(uname -s)"

  if [ "${KERNEL_NAME}" = FreeBSD ]; then
    TOTAL_RAM="$(sysctl -n hw.physmem)"
  elif [ "${KERNEL_NAME}" = Darwin ]; then
    TOTAL_RAM="$(sysctl -n hw.memsize)"
  elif [ -r /proc/meminfo ]; then
    TOTAL_RAM="$(grep -F MemTotal /proc/meminfo | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | cut -f 1 -d ' ')"
    TOTAL_RAM="$((TOTAL_RAM * 1024))"
  fi

  if [ -f /etc/machine-id ]; then
    DISTINCT_ID="$(cat /etc/machine-id)"
  elif command -v uuidgen > /dev/null 2>&1; then
    DISTINCT_ID="$(uuidgen)"
  else
    DISTINCT_ID="null"
  fi

  REQ_BODY="$(cat << EOF
{
  "api_key": "${TELEMETRY_API_KEY}",
  "event": "${1}",
  "properties": {
    "distinct_id": "${DISTINCT_ID}",
    "event_source": "agent installer",
    "\$current_url": "agent installer",
    "\$pathname": "netdata-installer",
    "\$host": "installer.netdata.io",
    "\$ip": "127.0.0.1",
    "script_variant": "kickstart-ng",
    "error_code": "${3}",
    "error_message": "${2}",
    "install_options": "${KICKSTART_OPTIONS}",
    "install_interactivity": "${INTERACTIVE}",
    "total_runtime": "${total_duration}",
    "selected_install_method": "${SELECTED_INSTALL_METHOD}",
    "netdata_release_channel": "${RELEASE_CHANNEL:-null}",
    "netdata_install_type": "${INSTALL_TYPE}",
    "host_os_name": "${HOST_NAME:-unknown}",
    "host_os_id": "${HOST_ID:-unknown}",
    "host_os_id_like": "${HOST_ID_LIKE:-unknown}",
    "host_os_version": "${HOST_VERSION:-unknown}",
    "host_os_version_id": "${HOST_VERSION_ID:-unknown}",
    "system_kernel_name": "${KERNEL_NAME}",
    "system_kernel_version": "$(uname -r)",
    "system_architecture": "$(uname -m)",
    "system_total_ram": "${TOTAL_RAM:-unknown}"
  }
}
EOF
)"

  if command -v curl > /dev/null 2>&1; then
    curl --silent -o /dev/null -X POST --max-time 2 --header "Content-Type: application/json" -d "${REQ_BODY}" "${TELEMETRY_URL}" > /dev/null
  elif command -v wget > /dev/null 2>&1; then
    wget -q -O - --no-check-certificate \
    --method POST \
    --timeout=1 \
    --header 'Content-Type: application/json' \
    --body-data "${REQ_BODY}" \
     "${TELEMETRY_URL}" > /dev/null
  fi
}

trap_handler() {
  code="${1}"
  lineno="${2}"

  printf >&2 "%s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD} ERROR ${TPUT_RESET} Installer exited unexpectedly (${code}-${lineno})"

  telemetry_event INSTALL_CRASH "Installer exited unexpectedly (${code}-${lineno})" "E${code}-${lineno}"

  trap - EXIT

  cleanup

  exit 1
}

trap 'trap_handler 0 ${LINENO}' EXIT
trap 'trap_handler 1 0' HUP
trap 'trap_handler 2 0' INT
trap 'trap_handler 3 0' QUIT
trap 'trap_handler 13 0' PIPE
trap 'trap_handler 15 0' TERM

# ======================================================================
# Utility functions

setup_terminal() {
  TPUT_RESET=""
  TPUT_WHITE=""
  TPUT_BGRED=""
  TPUT_BGGREEN=""
  TPUT_BOLD=""
  TPUT_DIM=""

  # Is stderr on the terminal? If not, then fail
  test -t 2 || return 1

  if command -v tput > /dev/null 2>&1; then
    if [ $(($(tput colors 2> /dev/null))) -ge 8 ]; then
      # Enable colors
      TPUT_RESET="$(tput sgr 0)"
      TPUT_WHITE="$(tput setaf 7)"
      TPUT_BGRED="$(tput setab 1)"
      TPUT_BGGREEN="$(tput setab 2)"
      TPUT_BOLD="$(tput bold)"
      TPUT_DIM="$(tput dim)"
    fi
  fi

  echo "${TPUT_RESET}"

  return 0
}

cleanup() {
  if [ -z "${NO_CLEANUP}" ]; then
    ${ROOTCMD} rm -rf "${tmpdir}"
  fi
}

fatal() {
  printf >&2 "%s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD} ABORTED ${TPUT_RESET} ${1}"
  telemetry_event "INSTALL_FAILED" "${1}" "${2}"
  cleanup
  trap - EXIT
  exit 1
}

run_ok() {
  printf >&2 "%s\n\n" "${TPUT_BGGREEN}${TPUT_WHITE}${TPUT_BOLD} OK ${TPUT_RESET}"
}

run_failed() {
  printf >&2 "%s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD} FAILED ${TPUT_RESET}"
}

ESCAPED_PRINT_METHOD=
# shellcheck disable=SC3050
if printf "%q " test > /dev/null 2>&1; then
  ESCAPED_PRINT_METHOD="printfq"
fi

escaped_print() {
  if [ "${ESCAPED_PRINT_METHOD}" = "printfq" ]; then
    # shellcheck disable=SC3050
    printf "%q " "${@}"
  else
    printf "%s" "${*}"
  fi
  return 0
}

progress() {
  echo >&2 " --- ${TPUT_BOLD}${*}${TPUT_RESET} --- "
}

run_logfile="/dev/null"
run() {
  user="${USER--}"
  dir="${PWD}"

  if [ "$(id -u)" = "0" ]; then
    info="[root ${dir}]# "
    info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]# "
  else
    info="[${user} ${dir}]$ "
    info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]$ "
  fi

  {
    printf "%s" "${info}"
    escaped_print "${@}"
    printf " ... "
  } >> "${run_logfile}"

  printf >&2 "%s" "${info_console}${TPUT_BOLD}"
  escaped_print >&2 "${@}"
  printf >&2 "%s\n" "${TPUT_RESET}"

  "${@}"

  ret=$?
  if [ ${ret} -ne 0 ]; then
    run_failed
    printf "%s\n" "FAILED with exit code ${ret}" >> "${run_logfile}"
  else
    run_ok
    printf "OK\n" >> "${run_logfile}"
  fi

  return ${ret}
}

warning() {
  printf >&2 "%s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD} WARNING ${TPUT_RESET} ${*}"
}

_cannot_use_tmpdir() {
  testfile="$(TMPDIR="${1}" mktemp -q -t netdata-test.XXXXXXXXXX)"
  ret=0

  if [ -z "${testfile}" ]; then
    return "${ret}"
  fi

  if printf '#!/bin/sh\necho SUCCESS\n' > "${testfile}"; then
    if chmod +x "${testfile}"; then
      if [ "$("${testfile}")" = "SUCCESS" ]; then
        ret=1
      fi
    fi
  fi

  rm -f "${testfile}"
  return "${ret}"
}

create_tmp_directory() {
  if [ -z "${TMPDIR}" ] || _cannot_use_tmpdir "${TMPDIR}"; then
    if _cannot_use_tmpdir /tmp; then
      if _cannot_use_tmpdir "${PWD}"; then
        fatal "Unable to find a usable temporary directory. Please set \$TMPDIR to a path that is both writable and allows execution of files and try again." F0400
      else
        TMPDIR="${PWD}"
      fi
    else
      TMPDIR="/tmp"
    fi
  fi

  mktemp -d -t netdata-kickstart-XXXXXXXXXX
}

download() {
  url="${1}"
  dest="${2}"
  if command -v curl > /dev/null 2>&1; then
    run curl --fail -q -sSL --connect-timeout 10 --retry 3 --output "${dest}" "${url}" || return 1
  elif command -v wget > /dev/null 2>&1; then
    run wget -T 15 -O "${dest}" "${url}" || return 1
  else
    fatal "I need curl or wget to proceed, but neither of them are available on this system." F0003
  fi
}

get_redirect() {
  url="${1}"

  if command -v curl > /dev/null 2>&1; then
    run sh -c "curl ${url} -s -L -I -o /dev/null -w '%{url_effective}' | grep -o '[^/]*$'" || return 1
  elif command -v wget > /dev/null 2>&1; then
    run sh -c "wget --max-redirect=0 ${url} 2>&1 | grep Location | cut -d ' ' -f2  | grep -o '[^/]*$'" || return 1
  else
    fatal "I need curl or wget to proceed, but neither of them are available on this system." F0003
  fi
}

safe_sha256sum() {
  # Within the context of the installer, we only use -c option that is common between the two commands
  # We will have to reconsider if we start using non-common options
  if command -v sha256sum > /dev/null 2>&1; then
    sha256sum "$@"
  elif command -v shasum > /dev/null 2>&1; then
    shasum -a 256 "$@"
  else
    fatal "I could not find a suitable checksum binary to use" F0004
  fi
}

get_system_info() {
  case "$(uname -s)" in
    Linux)
      SYSTYPE="Linux"

      os_release_file=
      if [ -s "/etc/os-release" ] && [ -r "/etc/os-release" ]; then
        os_release_file="/etc/os-release"
      elif [ -s "/usr/lib/os-release" ] && [ -r "/usr/lib/os-release" ]; then
        os_release_file="/usr/lib/os-release"
      else
        warning "Cannot find an os-release file ..."
      fi

      if [ -n "${os_release_file}" ]; then
        # shellcheck disable=SC1090
        . "${os_release_file}"

        DISTRO="${ID}"
        SYSVERSION="${VERSION_ID}"
        SYSCODENAME="${VERSION_CODENAME}"
        SYSARCH="$(uname -m)"

        supported_compat_names="debian ubuntu centos fedora opensuse ol"

        if str_in_list "${DISTRO}" "${supported_compat_names}"; then
            DISTRO_COMPAT_NAME="${DISTRO}"
        else
            case "${DISTRO}" in
            opensuse-leap)
                DISTRO_COMPAT_NAME="opensuse"
                ;;
            rocky|rhel)
                DISTRO_COMPAT_NAME="centos"
                ;;
            *)
                DISTRO_COMPAT_NAME="unknown"
                ;;
            esac
        fi

        case "${DISTRO_COMPAT_NAME}" in
          centos|ol)
            SYSVERSION=$(echo "$SYSVERSION" | cut -d'.' -f1)
            ;;
        esac
      else
        DISTRO="unknown"
        DISTRO_COMPAT_NAME="unknown"
        SYSVERSION="unknown"
        SYSCODENAME="unknown"
        SYSARCH="$(uname -m)"
      fi
      ;;
    Darwin)
      SYSTYPE="Darwin"
      SYSVERSION="$(sw_vers -buildVersion)"
      SYSARCH="$(uname -m)"
      ;;
    FreeBSD)
      SYSTYPE="FreeBSD"
      SYSVERSION="$(uname -K)"
      SYSARCH="$(uname -m)"
      ;;
    *)
      fatal "Unsupported system type detected. Netdata cannot be installed on this system using this script." F0200
      ;;
  esac
}

str_in_list() {
  printf "%s\n" "${2}" | tr ' ' "\n" | grep -qE "^${1}\$"
  return $?
}

confirm_root_support() {
  if [ "$(id -u)" -ne "0" ]; then
    if [ -z "${ROOTCMD}" ] && command -v sudo > /dev/null; then
      if [ "${INTERACTIVE}" -eq 0 ]; then
        ROOTCMD="sudo -n"
      else
        ROOTCMD="sudo"
      fi
    fi

    if [ -z "${ROOTCMD}" ] && command -v doas > /dev/null; then
      if [ "${INTERACTIVE}" -eq 0 ]; then
        ROOTCMD="doas -n"
      else
        ROOTCMD="doas"
      fi
    fi

    if [ -z "${ROOTCMD}" ] && command -v pkexec > /dev/null; then
      ROOTCMD="pkexec"
    fi

    if [ -z "${ROOTCMD}" ]; then
      fatal "We need root privileges to continue, but cannot find a way to gain them. Either re-run this script as root, or set \$ROOTCMD to a command that can be used to gain root privileges" F0201
    fi
  fi
}

confirm() {
  prompt="${1} [y/n]"

  while true; do
    echo "${prompt}"
    read -r yn

    case "$yn" in
      [Yy]*) return 0;;
      [Nn]*) return 1;;
      *) echo "Please answer yes or no.";;
    esac
  done
}

# ======================================================================
# Existing install handling code

update() {
  updater="${ndprefix}/usr/libexec/netdata/netdata-updater.sh"

  if [ -x "${updater}" ]; then
    if run ${ROOTCMD} "${updater}" --not-running-from-cron; then
      progress "Updated existing install at ${ndprefix}"
      return 0
    else
      fatal "Failed to update existing Netdata install at ${ndprefix}" F0100
    fi
  else
    return 1
  fi
}

detect_existing_install() {
  if pkg_installed netdata; then
    ndprefix="/"
  elif [ -n "${INSTALL_PREFIX}" ]; then
    ndprefix="${INSTALL_PREFIX}"
  else
    if [ -n "${INSTALL_PREFIX}" ]; then
      searchpath="${INSTALL_PREFIX}/bin:${INSTALL_PREFIX}/sbin:${INSTALL_PREFIX}/usr/bin:${INSTALL_PREFIX}/usr/sbin:${PATH}"
      searchpath="${INSTALL_PREFIX}/netdata/bin:${INSTALL_PREFIX}/netdata/sbin:${INSTALL_PREFIX}/netdata/usr/bin:${INSTALL_PREFIX}/netdata/usr/sbin:${searchpath}"
    else
      searchpath="${PATH}"
    fi

    ndpath="$(PATH="${searchpath}" command -v netdata 2>/dev/null)"

    if [ -z "$ndpath" ] && [ -x /opt/netdata/bin/netdata ]; then
      ndpath="/opt/netdata/bin/netdata"
    fi

    if [ -n "${ndpath}" ]; then
      ndprefix="$(dirname "$(dirname "${ndpath}")")"
    fi

    if echo "${ndprefix}" | grep -Eq '/usr$'; then
      ndprefix="$(dirname "${ndprefix}")"
    fi
  fi

  if [ -n "${ndprefix}" ]; then
    typefile="${ndprefix}/etc/netdata/.install-type"
    if [ -r "${typefile}" ]; then
      ${ROOTCMD} sh -c "cat \"${typefile}\" > \"${tmpdir}/install-type\""
      # shellcheck disable=SC1091
      . "${tmpdir}/install-type"
    else
      INSTALL_TYPE="unknown"
    fi
  fi

  INSTALL_PREFIX="${ndprefix}"
}

handle_existing_install() {
  detect_existing_install

  if [ -z "${INSTALL_PREFIX}" ] || [ -z "${INSTALL_TYPE}" ]; then
    progress "No existing installations of netdata found, assuming this is a fresh install."
    return 0
  fi

  case "${INSTALL_TYPE}" in
    kickstart-*|legacy-*|binpkg-*|manual-static|unknown)
      if [ "${INSTALL_TYPE}" = "unknown" ]; then
        warning "Found an existing netdata install at ${INSTALL_PREFIX}, but could not determine the install type."
      else
        progress "Found an existing netdata install at ${INSTALL_PREFIX}, with installation type '${INSTALL_TYPE}'."
      fi

      if [ -n "${NETDATA_REINSTALL}" ] || [ -n "${NETDATA_UNSAFE_REINSTALL}" ]; then
        progress "Found an existing netdata install at ${INSTALL_PREFIX}, but user requested reinstall, continuing."

        case "${INSTALL_TYPE}" in
          binpkg-*) NETDATA_ONLY_NATIVE=1 ;;
          *-build) NETDATA_ONLY_BUILD=1 ;;
          *-static) NETDATA_ONLY_STATIC=1 ;;
          *)
            if [ -n "${NETDATA_UNSAFE_REINSTALL}" ]; then
              warning "Reinstalling over top of a ${INSTALL_TYPE} installation may be unsafe, but the user has requested we proceed."
            elif [ "${INTERACTIVE}" -eq 0 ]; then
              fatal "User requested reinstall, but we cannot safely reinstall over top of a ${INSTALL_TYPE} installation, exiting." F0104
            else
              if confirm "Reinstalling over top of a ${INSTALL_TYPE} installation may be unsafe, do you want to continue?"; then
                progress "OK, continuing."
              else
                fatal "Cancelling reinstallation at user request." F0105
              fi
            fi
            ;;
        esac

        return 0
      fi

      ret=0

      if [ "${NETDATA_CLAIM_ONLY}" -eq 0 ] && echo "${INSTALL_TYPE}" | grep -vq "binpkg-*"; then
        if ! update; then
          warning "Unable to find usable updater script, not updating existing install at ${INSTALL_PREFIX}."
        fi
      else
        warning "Not updating existing install at ${INSTALL_PREFIX}."
      fi

      if [ -n "${NETDATA_CLAIM_TOKEN}" ]; then
        progress "Attempting to claim existing install at ${INSTALL_PREFIX}."
        claim
        ret=$?
      elif [ "${NETDATA_CLAIM_ONLY}" -eq 1 ]; then
        fatal "User asked to claim, but did not proide a claiming token." F0202
      else
        progress "Not attempting to claim existing install at ${INSTALL_PREFIX} (no claiming token provided)."
      fi

      cleanup
      trap - EXIT
      exit $ret
      ;;
    oci)
      fatal "This is an OCI container, use the regular image lifecycle management commands in your container instead of this script for managing it." F0203
      ;;
    *)
      if [ -n "${NETDATA_REINSTALL}" ] || [ -n "${NETDATA_UNSAFE_REINSTALL}" ]; then
        if [ -n "${NETDATA_UNSAFE_REINSTALL}" ]; then
          warning "Reinstalling over top of a ${INSTALL_TYPE} installation may be unsafe, but the user has requested we proceed."
        elif [ "${INTERACTIVE}" -eq 0 ]; then
          fatal "User requested reinstall, but we cannot safely reinstall over top of a ${INSTALL_TYPE} installation, exiting." F0104
        else
          if confirm "Reinstalling over top of a ${INSTALL_TYPE} installation may be unsafe, do you want to continue?"; then
            progress "OK, continuing."
          else
            fatal "Cancelling reinstallation at user request." F0105
          fi
        fi
      else
        fatal "Found an existing netdata install at ${INSTALL_PREFIX}, but the install type is '${INSTALL_TYPE}', which is not supported, refusing to proceed." F0103
      fi
      ;;
  esac
}

soft_disable_cloud() {
  cloud_prefix="${INSTALL_PREFIX}/var/lib/netdata/cloud.d"

  run ${ROOTCMD} mkdir -p "${cloud_prefix}"

  cat > "${tmpdir}/cloud.conf" << EOF
[global]
  enabled = no
EOF

  run ${ROOTCMD} cp "${tmpdir}/cloud.conf" "${cloud_prefix}/cloud.conf"

  if [ -z "${NETDATA_NO_START}" ]; then
    case "${SYSTYPE}" in
      Darwin) run ${ROOTCMD} launchctl kickstart -k com.github.netdata ;;
      FreeBSD) run ${ROOTCMD} service netdata restart ;;
      Linux)
        initpath="$(${ROOTCMD} readlink /proc/1/exe)"

        if command -v service > /dev/null 2>&1; then
          run ${ROOTCMD} service netdata restart
        elif command -v rc-service > /dev/null 2>&1; then
          run ${ROOTCMD} rc-service netdata restart
        elif [ "$(basename "${initpath}" 2> /dev/null)" = "systemd" ]; then
          run ${ROOTCMD} systemctl restart netdata
        elif [ -f /etc/init.d/netdata ]; then
          run ${ROOTCMD} /etc/init.d/netdata restart
        fi
        ;;
    esac
  fi
}

confirm_install_prefix() {
  if [ -n "${INSTALL_PREFIX}" ] && [ "${NETDATA_ONLY_BUILD}" -ne 1 ]; then
    fatal "The \`--install\` option is only supported together with the \`--only-build\` option." F0204
  fi

  if [ -n "${INSTALL_PREFIX}" ]; then
    NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} --install ${INSTALL_PREFIX}"
  else
    case "${SYSTYPE}" in
      Darwin)
        INSTALL_PREFIX="/usr/local/netdata"
        NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} --install-no-prefix ${INSTALL_PREFIX}"
        ;;
      FreeBSD)
        INSTALL_PREFIX="/usr/local"
        NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} --install-no-prefix ${INSTALL_PREFIX}"
        ;;
    esac
  fi
}

# ======================================================================
# Claiming support code

check_claim_opts() {
# shellcheck disable=SC2235,SC2030
  if [ -z "${NETDATA_CLAIM_TOKEN}" ] && [ -n "${NETDATA_CLAIM_ROOMS}" ]; then
    fatal "Invalid claiming options, claim rooms may only be specified when a token and URL are specified." F0204
  elif [ -z "${NETDATA_CLAIM_TOKEN}" ] && [ -n "${NETDATA_CLAIM_EXTRA}" ]; then
    fatal "Invalid claiming options, a claiming token must be specified." F0204
  elif [ "${NETDATA_DISABLE_CLOUD}" -eq 1 ] && [ -n "${NETDATA_CLAIM_TOKEN}" ]; then
    fatal "Cloud explicitly disabled, but automatic claiming requested. Either enable Netdata Cloud, or remove the --claim-* options." F0204
  fi
}

is_netdata_running() {
  if command -v pgrep > /dev/null 2>&1; then
    if pgrep netdata; then
      return 0
    else
      return 1
    fi
  else
    if [ -z "${INSTALL_PREFIX}" ]; then
      NETDATACLI_PATH=/usr/sbin/netdatacli
    elif [ "${INSTALL_PREFIX}" = "/opt/netdata" ]; then
      NETDATACLI_PATH="/opt/netdata/bin/netdatacli"
    else
      NETDATACLI_PATH="${INSTALL_PREFIX}/netdata/usr/sbin/netdatacli"
    fi

    if "${NETDATACLI_PATH}" ping > /dev/null 2>&1; then
      return 0
    else
      return 1
    fi
  fi
}

claim() {
  progress "Attempting to claim agent to ${NETDATA_CLAIM_URL}"
  if [ -z "${INSTALL_PREFIX}" ] || [ "${INSTALL_PREFIX}" = "/" ]; then
    NETDATA_CLAIM_PATH=/usr/sbin/netdata-claim.sh
  elif [ "${INSTALL_PREFIX}" = "/opt/netdata" ]; then
    NETDATA_CLAIM_PATH="/opt/netdata/bin/netdata-claim.sh"
  else
    NETDATA_CLAIM_PATH="${INSTALL_PREFIX}/netdata/usr/sbin/netdata-claim.sh"
  fi

  if ! is_netdata_running; then
    NETDATA_CLAIM_EXTRA="${NETDATA_CLAIM_EXTRA} -daemon-not-running"
  fi

  # shellcheck disable=SC2086
  if ${ROOTCMD} "${NETDATA_CLAIM_PATH}" -token="${NETDATA_CLAIM_TOKEN}" -rooms="${NETDATA_CLAIM_ROOMS}" -url="${NETDATA_CLAIM_URL}" ${NETDATA_CLAIM_EXTRA}; then
    progress "Successfully claimed node"
  else
    warning "Unable to claim node, you must do so manually."
    if [ -z "${NETDATA_NEW_INSTALL}" ]; then
      cleanup
      trap - EXIT
      exit 1
    fi
  fi
}

# ======================================================================
# Native package install code.

# Check for an already installed package with a given name.
pkg_installed() {
  case "${DISTRO_COMPAT_NAME}" in
    debian|ubuntu)
      dpkg-query --show --showformat '${Status}' "${1}" 2>&1 | cut -f 1 -d ' ' | grep -q '^install$'
      return $?
      ;;
    centos|fedora|opensuse|ol)
      rpm -q "${1}" > /dev/null 2>&1
      return $?
      ;;
    *)
      return 1
      ;;
  esac
}

# Check for the existence of a usable netdata package in the repo.
netdata_avail_check() {
  case "${DISTRO_COMPAT_NAME}" in
    debian|ubuntu)
      env DEBIAN_FRONTEND=noninteractive apt-cache policy netdata | grep -q packagecloud.io/netdata/netdata;
      return $?
      ;;
    centos|fedora|ol)
      # shellcheck disable=SC2086
      ${pm_cmd} search -v netdata | grep -qE 'Repo *: netdata(-edge)?$'
      return $?
      ;;
    opensuse)
      zypper packages -r "$(zypper repos | grep -E 'netdata |netdata-edge ' | cut -f 1 -d '|' | tr -d ' ')" | grep -E 'netdata '
      return $?
      ;;
    *)
      return 1
      ;;
  esac
}

# Check for any distro-specific dependencies we know we need.
check_special_native_deps() {
  if [ "${DISTRO_COMPAT_NAME}" = "centos" ] && [ "${SYSVERSION}" = "7" ]; then
    progress "Checking for libuv availability."
    # shellcheck disable=SC2086
    if ${pm_cmd} search ${interactive_opts} -v libuv | grep -q "No matches found"; then
      progress "libv not found, checking for EPEL availability."
      # shellcheck disable=SC2086
      if ${pm_cmd} search ${interactive_opts} -v epel-release | grep -q "No matches found"; then
        warning "Unable to find a suitable source for libuv, cannot install on this system."
        return 1
      else
        progress "EPEL is available, attempting to install so that required dependencies are available."

        # shellcheck disable=SC2086
        if ! run ${ROOTCMD} env ${env} ${pm_cmd} install ${pkg_install_opts} epel-release; then
          warning "Failed to install EPEL."
          return 1
        fi
      fi
    else
      return 0
    fi
  fi
}

try_package_install() {
  if [ -z "${DISTRO}" ] || [ "${DISTRO}" = "unknown" ]; then
    warning "Unable to determine Linux distribution for native packages."
    return 1
  fi

  progress "Attempting to install using native packages..."

  if [ "${RELEASE_CHANNEL}" = "nightly" ]; then
    release="-edge"
  else
    release=""
  fi

  if [ "${INTERACTIVE}" = "0" ]; then
    interactive_opts="-y"
    env="DEBIAN_FRONTEND=noninteractive"
  else
    interactive_opts=""
    env=""
  fi

  case "${DISTRO_COMPAT_NAME}" in
    debian)
      needs_early_refresh=1
      pm_cmd="apt-get"
      repo_subcmd="update"
      repo_prefix="debian/${SYSCODENAME}"
      pkg_type="deb"
      pkg_suffix="_all"
      pkg_vsep="_"
      pkg_install_opts="${interactive_opts}"
      repo_update_opts="${interactive_opts}"
      uninstall_subcmd="purge"
      INSTALL_TYPE="binpkg-deb"
      ;;
    ubuntu)
      needs_early_refresh=1
      pm_cmd="apt-get"
      repo_subcmd="update"
      repo_prefix="ubuntu/${SYSCODENAME}"
      pkg_type="deb"
      pkg_suffix="_all"
      pkg_vsep="_"
      pkg_install_opts="${interactive_opts}"
      repo_update_opts="${interactive_opts}"
      uninstall_subcmd="purge"
      INSTALL_TYPE="binpkg-deb"
      ;;
    centos)
      if command -v dnf > /dev/null; then
        pm_cmd="dnf"
        repo_subcmd="makecache"
      else
        pm_cmd="yum"
      fi
      repo_prefix="el/${SYSVERSION}"
      pkg_type="rpm"
      pkg_suffix=".noarch"
      pkg_vsep="-"
      pkg_install_opts="${interactive_opts}"
      repo_update_opts="${interactive_opts}"
      uninstall_subcmd="remove"
      INSTALL_TYPE="binpkg-rpm"
      ;;
    fedora)
      if command -v dnf > /dev/null; then
        pm_cmd="dnf"
        repo_subcmd="makecache"
      else
        pm_cmd="yum"
      fi
      repo_prefix="fedora/${SYSVERSION}"
      pkg_type="rpm"
      pkg_suffix=".noarch"
      pkg_vsep="-"
      pkg_install_opts="${interactive_opts}"
      repo_update_opts="${interactive_opts}"
      uninstall_subcmd="remove"
      INSTALL_TYPE="binpkg-rpm"
      ;;
    opensuse)
      pm_cmd="zypper"
      repo_subcmd="--gpg-auto-import-keys refresh"
      repo_prefix="opensuse/${SYSVERSION}"
      pkg_type="rpm"
      pkg_suffix=".noarch"
      pkg_vsep="-"
      pkg_install_opts="${interactive_opts} --allow-unsigned-rpm"
      repo_update_opts=""
      uninstall_subcmd="remove"
      INSTALL_TYPE="binpkg-rpm"
      ;;
    ol)
      if command -v dnf > /dev/null; then
        pm_cmd="dnf"
        repo_subcmd="makecache"
      else
        pm_cmd="yum"
      fi
      repo_prefix="ol/${SYSVERSION}"
      pkg_type="rpm"
      pkg_suffix=".noarch"
      pkg_vsep="-"
      pkg_install_opts="${interactive_opts}"
      repo_update_opts="${interactive_opts}"
      uninstall_subcmd="remove"
      INSTALL_TYPE="binpkg-rpm"
      ;;
    *)
      warning "We do not provide native packages for ${DISTRO}."
      return 2
      ;;
  esac

  repoconfig_name="netdata-repo${release}"
  repoconfig_file="${repoconfig_name}${pkg_vsep}${REPOCONFIG_VERSION}${pkg_suffix}.${pkg_type}"
  repoconfig_url="${REPOCONFIG_URL_PREFIX}/${repo_prefix}/${repoconfig_file}/download.${pkg_type}"

  if ! pkg_installed "${repoconfig_name}"; then
    progress "Downloading repository configuration package."
    if ! download "${repoconfig_url}" "${tmpdir}/${repoconfig_file}"; then
      warning "Failed to download repository configuration package."
      return 2
    fi

    if [ -n "${needs_early_refresh}" ]; then
      progress "Updating repository metadata."
      # shellcheck disable=SC2086
      if ! run ${ROOTCMD} env ${env} ${pm_cmd} ${repo_subcmd} ${repo_update_opts}; then
        warning "Failed to refresh repository metadata."
        return 2
      fi
    fi

    progress "Installing repository configuration package."
    # shellcheck disable=SC2086
    if ! run ${ROOTCMD} env ${env} ${pm_cmd} install ${pkg_install_opts} "${tmpdir}/${repoconfig_file}"; then
      warning "Failed to install repository configuration package."
      return 2
    fi

    if [ -n "${repo_subcmd}" ]; then
      progress "Updating repository metadata."
      # shellcheck disable=SC2086
      if ! run ${ROOTCMD} env ${env} ${pm_cmd} ${repo_subcmd} ${repo_update_opts}; then
        fatal "Failed to update repository metadata." F0205
      fi
    fi
  else
    progress "Repository configuration is already present, attempting to install netdata."
  fi

  if ! check_special_native_deps; then
    warning "Could not find secondary dependencies ${DISTRO} on ${SYSARCH}."
    if [ -z "${NO_CLEANUP}" ]; then
      progress "Attempting to uninstall repository configuration package."
      # shellcheck disable=SC2086
      run ${ROOTCMD} env ${env} ${pm_cmd} ${uninstall_subcmd} ${pkg_install_opts} "${repoconfig_name}"
    fi
    return 2
  fi

  progress "Checking for usable Netdata package."
  if ! netdata_avail_check "${DISTRO_COMPAT_NAME}"; then
    warning "Could not find a usable native package for ${DISTRO} on ${SYSARCH}."
    if [ -z "${NO_CLEANUP}" ]; then
      progress "Attempting to uninstall repository configuration package."
      # shellcheck disable=SC2086
      run ${ROOTCMD} env ${env} ${pm_cmd} ${uninstall_subcmd} ${pkg_install_opts} "${repoconfig_name}"
    fi
    return 2
  fi

  if [ "${NETDATA_DISABLE_TELEMETRY}" -eq 1 ]; then
    run ${ROOTCMD} mkdir -p "/etc/netdata"
    run ${ROOTCMD} touch "/etc/netdata/.opt-out-from-anonymous-statistics"
  fi

  progress "Installing Netdata package."
  # shellcheck disable=SC2086
  if ! run ${ROOTCMD} env ${env} ${pm_cmd} install ${pkg_install_opts} netdata; then
    warning "Failed to install Netdata package."
    if [ -z "${NO_CLEANUP}" ]; then
      progress "Attempting to uninstall repository configuration package."
      # shellcheck disable=SC2086
      run ${ROOTCMD} env ${env} ${pm_cmd} ${uninstall_subcmd} ${pkg_install_opts} "${repoconfig_name}"
    fi
    return 2
  fi
}

# ======================================================================
# Static build install code

set_static_archive_urls() {
  if [ "${RELEASE_CHANNEL}" = "stable" ]; then
    latest="$(get_redirect "https://github.com/netdata/netdata/releases/latest")"
    export NETDATA_STATIC_ARCHIVE_URL="https://github.com/netdata/netdata/releases/download/${latest}/netdata-${SYSARCH}-latest.gz.run"
    export NETDATA_STATIC_ARCHIVE_CHECKSUM_URL="https://github.com/netdata/netdata/releases/download/${latest}/sha256sums.txt"
  else
    export NETDATA_STATIC_ARCHIVE_URL="${NETDATA_TARBALL_BASEURL}/netdata-${SYSARCH}-latest.gz.run"
    export NETDATA_STATIC_ARCHIVE_CHECKSUM_URL="${NETDATA_TARBALL_BASEURL}/sha256sums.txt"
  fi
}

try_static_install() {
  set_static_archive_urls "${RELEASE_CHANNEL}"
  progress "Downloading static netdata binary: ${NETDATA_STATIC_ARCHIVE_URL}"

  if ! download "${NETDATA_STATIC_ARCHIVE_URL}" "${tmpdir}/netdata-${SYSARCH}-latest.gz.run"; then
    warning "Unable to download static build archive for ${SYSARCH}."
    return 2
  fi

  if ! download "${NETDATA_STATIC_ARCHIVE_CHECKSUM_URL}" "${tmpdir}/sha256sum.txt"; then
    fatal "Unable to fetch checksums to verify static build archive." F0206
  fi

  if ! grep "netdata-${SYSARCH}-latest.gz.run" "${tmpdir}/sha256sum.txt" | safe_sha256sum -c - > /dev/null 2>&1; then
    fatal "Static binary checksum validation failed. Usually this is a result of an older copy of the file being cached somewhere upstream and can be resolved by retrying in an hour." F0207
  fi

  if [ "${INTERACTIVE}" -eq 0 ]; then
    opts="${opts} --accept"
  fi

  progress "Installing netdata"
  # shellcheck disable=SC2086
  if ! run ${ROOTCMD} sh "${tmpdir}/netdata-${SYSARCH}-latest.gz.run" ${opts} -- ${NETDATA_AUTO_UPDATES:+--auto-update} ${NETDATA_INSTALLER_OPTIONS}; then
    warning "Failed to install static build of Netdata on ${SYSARCH}."
    run rm -rf /opt/netdata
    return 2
  fi

  install_type_file="/opt/netdata/etc/netdata/.install-type"
  if [ -f "${install_type_file}" ]; then
    ${ROOTCMD} sh -c "cat \"${install_type_file}\" > \"${tmpdir}/install-type\""
    ${ROOTCMD} chown "$(id -u)":"$(id -g)" "${tmpdir}/install-type"
    # shellcheck disable=SC1091
    . "${tmpdir}/install-type"
    cat > "${tmpdir}/install-type" <<- EOF
	INSTALL_TYPE='kickstart-static'
	PREBUILT_ARCH='${PREBUILT_ARCH}'
	EOF
    ${ROOTCMD} chown netdata:netdata "${tmpdir}/install-type"
    ${ROOTCMD} cp "${tmpdir}/install-type" "${install_type_file}"
  fi
}

# ======================================================================
# Local build install code

set_source_archive_urls() {
  if [ "$1" = "stable" ]; then
    latest="$(get_redirect "https://github.com/netdata/netdata/releases/latest")"
    export NETDATA_SOURCE_ARCHIVE_URL="https://github.com/netdata/netdata/releases/download/${latest}/netdata-${latest}.tar.gz"
    export NETDATA_SOURCE_ARCHIVE_CHECKSUM_URL="https://github.com/netdata/netdata/releases/download/${latest}/sha256sums.txt"
  else
    export NETDATA_SOURCE_ARCHIVE_URL="${NETDATA_TARBALL_BASEURL}/netdata-latest.tar.gz"
    export NETDATA_SOURCE_ARCHIVE_CHECKSUM_URL="${NETDATA_TARBALL_BASEURL}/sha256sums.txt"
  fi
}

install_local_build_dependencies() {
  bash="$(command -v bash 2> /dev/null)"

  if [ -z "${bash}" ] || [ ! -x "${bash}" ]; then
    warning "Unable to find a usable version of \`bash\` (required for local build)."
    return 1
  fi

  progress "Fetching script to detect required packages..."
  download "${PACKAGES_SCRIPT}" "${tmpdir}/install-required-packages.sh"

  if [ ! -s "${tmpdir}/install-required-packages.sh" ]; then
    warning "Downloaded dependency installation script is empty."
  else
    progress "Running downloaded script to detect required packages..."

    if [ "${INTERACTIVE}" -eq 0 ]; then
      opts="--dont-wait --non-interactive"
    fi

    if [ "${SYSTYPE}" = "Darwin" ]; then
      sudo=""
    else
      sudo="${ROOTCMD}"
    fi

    # shellcheck disable=SC2086
    if ! run ${sudo} "${bash}" "${tmpdir}/install-required-packages.sh" ${opts} netdata; then
      warning "It failed to install all the required packages, but installation might still be possible."
    fi
  fi
}

build_and_install() {
  progress "Building netdata"

  echo "INSTALL_TYPE='kickstart-build'" > system/.install-type

  opts="${NETDATA_INSTALLER_OPTIONS}"

  if [ "${INTERACTIVE}" -eq 0 ]; then
    opts="${opts} --dont-wait"
  fi

  if [ "${NETDATA_AUTO_UPDATES}" -eq 1 ]; then
    opts="${opts} --auto-update"
  fi

  if [ "${RELEASE_CHANNEL}" = "stable" ]; then
    opts="${opts} --stable-channel"
  fi

  if [ "${NETDATA_REQUIRE_CLOUD}" -eq 1 ]; then
    opts="${opts} --require-cloud"
  elif [ "${NETDATA_DISABLE_CLOUD}" -eq 1 ]; then
    opts="${opts} --disable-cloud"
  fi

  # shellcheck disable=SC2086
  run ${ROOTCMD} ./netdata-installer.sh ${opts}

  case $? in
    1)
      fatal "netdata-installer.sh exited with error" F0007
      ;;
    2)
      fatal "Insufficient RAM to install netdata" F0008
      ;;
  esac
}

try_build_install() {
  if ! install_local_build_dependencies; then
    return 1
  fi

  set_source_archive_urls "${RELEASE_CHANNEL}"

  download "${NETDATA_SOURCE_ARCHIVE_CHECKSUM_URL}" "${tmpdir}/sha256sum.txt"
  download "${NETDATA_SOURCE_ARCHIVE_URL}" "${tmpdir}/netdata-latest.tar.gz"

  if ! grep netdata-latest.tar.gz "${tmpdir}/sha256sum.txt" | safe_sha256sum -c - > /dev/null 2>&1; then
    fatal "Tarball checksum validation failed. Usually this is a result of an older copy of the file being cached somewhere upstream and can be resolved by retrying in an hour." F0005
  fi

  run tar -xf "${tmpdir}/netdata-latest.tar.gz" -C "${tmpdir}"
  rm -rf "${tmpdir}/netdata-latest.tar.gz" > /dev/null 2>&1
  cd "$(find "${tmpdir}" -mindepth 1 -maxdepth 1 -type d -name netdata-)" || fatal "Cannot cd to netdata source tree" F0006

  if [ -x netdata-installer.sh ]; then
    build_and_install || return 1
  else
    # This case is needed because some platforms produce an extra directory on the source tarball extraction.
    if [ "$(find . -mindepth 1 -maxdepth 1 -type d | wc -l)" -eq 1 ] && [ -x "$(find . -mindepth 1 -maxdepth 1 -type d)/netdata-installer.sh" ]; then
      cd "$(find . -mindepth 1 -maxdepth 1 -type d)" &&  build_and_install || return 1
    else
      fatal "Cannot install netdata from source (the source directory does not include netdata-installer.sh). Leaving all files in ${tmpdir}" F0009
    fi
  fi
}

# ======================================================================
# Per system-type install logic

install_on_linux() {
  if [ "${NETDATA_ONLY_STATIC}" -ne 1 ] && [ "${NETDATA_ONLY_BUILD}" -ne 1 ]; then
    SELECTED_INSTALL_METHOD="native"
    try_package_install

    case "$?" in
      0)
        NETDATA_INSTALL_SUCCESSFUL=1
        ;;
      1)
        fatal "Unable to install on this system." F0300
        ;;
      2)
        if [ "${NETDATA_ONLY_NATIVE}" -eq 1 ]; then
          fatal "Could not install native binary packages." F0301
        else
          warning "Could not install native binary packages, falling back to alternative installation method."
        fi
        ;;
    esac
  fi

  if [ "${NETDATA_ONLY_NATIVE}" -ne 1 ] && [ "${NETDATA_ONLY_BUILD}" -ne 1 ] && [ -z "${NETDATA_INSTALL_SUCCESSFUL}" ]; then
    SELECTED_INSTALL_METHOD="static"
    INSTALL_TYPE="kickstart-static"
    try_static_install

    case "$?" in
      0)
        NETDATA_INSTALL_SUCCESSFUL=1
        INSTALL_PREFIX="/opt/netdata"
        ;;
      1)
        fatal "Unable to install on this system." F0302
        ;;
      2)
        if [ "${NETDATA_ONLY_STATIC}" -eq 1 ]; then
          fatal "Could not install static build." F0303
        else
          warning "Could not install static build, falling back to alternative installation method."
        fi
        ;;
    esac
  fi

  if [ "${NETDATA_ONLY_NATIVE}" -ne 1 ] && [ "${NETDATA_ONLY_STATIC}" -ne 1 ] && [ -z "${NETDATA_INSTALL_SUCCESSFUL}" ]; then
    SELECTED_INSTALL_METHOD="build"
    INSTALL_TYPE="kickstart-build"
    try_build_install

    case "$?" in
      0)
        NETDATA_INSTALL_SUCCESSFUL=1
        ;;
      *)
        fatal "Unable to install on this system." F0304
        ;;
    esac
  fi
}

install_on_macos() {
  if [ "${NETDATA_ONLY_NATIVE}" -eq 1 ]; then
    fatal "User requested native package, but native packages are not available for macOS. Try installing without \`--only-native\` option." F0305
  elif [ "${NETDATA_ONLY_STATIC}" -eq 1 ]; then
    fatal "User requested static build, but static builds are not available for macOS. Try installing without \`--only-static\` option." F0306
  else
    SELECTED_INSTALL_METHOD="build"
    INSTALL_TYPE="kickstart-build"
    try_build_install

    case "$?" in
      0)
        NETDATA_INSTALL_SUCCESSFUL=1
        ;;
      *)
        fatal "Unable to install on this system." F0307
        ;;
    esac
  fi
}

install_on_freebsd() {
  if [ "${NETDATA_ONLY_NATIVE}" -eq 1 ]; then
    fatal "User requested native package, but native packages are not available for FreeBSD. Try installing without \`--only-native\` option." F0308
  elif [ "${NETDATA_ONLY_STATIC}" -eq 1 ]; then
    fatal "User requested static build, but static builds are not available for FreeBSD. Try installing without \`--only-static\` option." F0309
  else
    SELECTED_INSTALL_METHOD="build"
    INSTALL_TYPE="kickstart-build"
    try_build_install

    case "$?" in
      0)
        NETDATA_INSTALL_SUCCESSFUL=1
        ;;
      *)
        fatal "Unable to install on this system." F030A
        ;;
    esac
  fi
}

# ======================================================================
# Main program

setup_terminal || echo > /dev/null

while [ -n "${1}" ]; do
  case "${1}" in
    "--help")
      usage
      cleanup
      trap - EXIT
      exit 0
      ;;
    "--no-cleanup") NO_CLEANUP=1 ;;
    "--dont-wait"|"--non-interactive") INTERACTIVE=0 ;;
    "--interactive") INTERACTIVE=1 ;;
    "--stable-channel") RELEASE_CHANNEL="stable" ;;
    "--no-updates") NETDATA_AUTO_UPDATES=0 ;;
    "--auto-update") NETDATA_AUTO_UPDATES="1" ;;
    "--reinstall") NETDATA_REINSTALL=1 ;;
    "--reinstall-even-if-unsafe") NETDATA_UNSAFE_REINSTALL=1 ;;
    "--claim-only") NETDATA_CLAIM_ONLY=1 ;;
    "--disable-cloud")
      NETDATA_DISABLE_CLOUD=1
      NETDATA_REQUIRE_CLOUD=0
      ;;
    "--require-cloud")
      NETDATA_DISABLE_CLOUD=0
      NETDATA_REQUIRE_CLOUD=1
      ;;
    "--dont-start-it")
      NETDATA_NO_START=1
      NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} --dont-start-it"
      ;;
    "--disable-telemetry")
      NETDATA_DISABLE_TELEMETRY="1"
      NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} --disable-telemetry"
      ;;
    "--install")
      INSTALL_PREFIX="${2}"
      shift 1
      ;;
    "--native-only")
      NETDATA_ONLY_NATIVE=1
      NETDATA_ONLY_STATIC=0
      NETDATA_ONLY_BUILD=0
      SELECTED_INSTALL_METHOD="native"
      ;;
    "--static-only")
      NETDATA_ONLY_STATIC=1
      NETDATA_ONLY_NATIVE=0
      NETDATA_ONLY_BUILD=0
      SELECTED_INSTALL_METHOD="static"
      ;;
    "--build-only")
      NETDATA_ONLY_BUILD=1
      NETDATA_ONLY_NATIVE=0
      NETDATA_ONLY_STATIC=0
      SELECTED_INSTALL_METHOD="build"
      ;;
    "--claim-token")
      NETDATA_CLAIM_TOKEN="${2}"
      shift 1
      ;;
    "--claim-rooms")
      NETDATA_CLAIM_ROOMS="${2}"
      shift 1
      ;;
    "--claim-url")
      NETDATA_CLAIM_URL="${2}"
      shift 1
      ;;
    "--claim-*")
      optname="$(echo "${1}" | cut -d '-' -f 4-)"
      case "${optname}" in
        id|proxy|user|hostname)
          NETDATA_CLAIM_EXTRA="${NETDATA_CLAIM_EXTRA} -${optname} ${2}"
          shift 1
          ;;
        verbose|insecure|noproxy|noreload|daemon-not-running)
          NETDATA_CLAIM_EXTRA="${NETDATA_CLAIM_EXTRA} -${optname}"
          ;;
        *)
          warning "Ignoring unrecognized claiming option ${optname}"
          ;;
      esac
      ;;
    *)
      warning "Passing unrecognized option '${1}' to installer script. If this is intended, please add it to \$NETDATA_INSTALLER_OPTIONS instead."
      NETDATA_INSTALLER_OPTIONS="${NETDATA_INSTALLER_OPTIONS} ${1}"
      ;;
  esac
  shift 1
done

check_claim_opts
confirm_root_support
get_system_info
confirm_install_prefix

tmpdir="$(create_tmp_directory)"
progress "Using ${tmpdir} as a temporary directory."
cd "${tmpdir}" || exit 1

handle_existing_install

case "${SYSTYPE}" in
  Linux) install_on_linux ;;
  Darwin) install_on_macos ;;
  FreeBSD) install_on_freebsd ;;
esac

if [ -n "${NETDATA_CLAIM_TOKEN}" ]; then
  claim
elif [ "${NETDATA_DISABLE_CLOUD}" -eq 1 ]; then
  soft_disable_cloud
fi

telemetry_event INSTALL_SUCCESS "" ""
cleanup
trap - EXIT