forked from openstack/devstack
-
Notifications
You must be signed in to change notification settings - Fork 0
/
functions
1457 lines (1277 loc) · 45.6 KB
/
functions
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
# functions - Common functions used by DevStack components
#
# The following variables are assumed to be defined by certain functions:
# ``ENABLED_SERVICES``
# ``EROR_ON_CLONE``
# ``FILES``
# ``GLANCE_HOSTPORT``
# ``OFFLINE``
# ``PIP_DOWNLOAD_CACHE``
# ``PIP_USE_MIRRORS``
# ``RECLONE``
# ``TRACK_DEPENDS``
# ``http_proxy``, ``https_proxy``, ``no_proxy``
# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace
# Exit 0 if address is in network or 1 if address is not in
# network or netaddr library is not installed.
# address_in_net ip-address ip-range
function address_in_net() {
python -c "
import netaddr
import sys
sys.exit(netaddr.IPAddress('$1') not in netaddr.IPNetwork('$2'))
"
}
# Wrapper for ``apt-get`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``*_proxy`
# apt_get operation package [package ...]
function apt_get() {
[[ "$OFFLINE" = "True" || -z "$@" ]] && return
local sudo="sudo"
[[ "$(id -u)" = "0" ]] && sudo="env"
$sudo DEBIAN_FRONTEND=noninteractive \
http_proxy=$http_proxy https_proxy=$https_proxy \
no_proxy=$no_proxy \
apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"
}
# Gracefully cp only if source file/dir exists
# cp_it source destination
function cp_it {
if [ -e $1 ] || [ -d $1 ]; then
cp -pRL $1 $2
fi
}
# Prints line number and "message" then exits
# die $LINENO "message"
function die() {
local exitcode=$?
set +o xtrace
local line=$1; shift
if [ $exitcode == 0 ]; then
exitcode=1
fi
err $line "$*"
exit $exitcode
}
# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message" and exits
# NOTE: env-var is the variable name without a '$'
# die_if_not_set $LINENO env-var "message"
function die_if_not_set() {
local exitcode=$?
FXTRACE=$(set +o | grep xtrace)
set +o xtrace
local line=$1; shift
local evar=$1; shift
if ! is_set $evar || [ $exitcode != 0 ]; then
die $line "$*"
fi
$FXTRACE
}
# Prints line number and "message" in error format
# err $LINENO "message"
function err() {
local exitcode=$?
errXTRACE=$(set +o | grep xtrace)
set +o xtrace
local msg="[ERROR] $0:$1 $2"
echo $msg 1>&2;
if [[ -n ${SCREEN_LOGDIR} ]]; then
echo $msg >> "${SCREEN_LOGDIR}/error.log"
fi
$errXTRACE
return $exitcode
}
# Checks an environment variable is not set or has length 0 OR if the
# exit code is non-zero and prints "message"
# NOTE: env-var is the variable name without a '$'
# err_if_not_set $LINENO env-var "message"
function err_if_not_set() {
local exitcode=$?
errinsXTRACE=$(set +o | grep xtrace)
set +o xtrace
local line=$1; shift
local evar=$1; shift
if ! is_set $evar || [ $exitcode != 0 ]; then
err $line "$*"
fi
$errinsXTRACE
return $exitcode
}
# HTTP and HTTPS proxy servers are supported via the usual environment variables [1]
# ``http_proxy``, ``https_proxy`` and ``no_proxy``. They can be set in
# ``localrc`` or on the command line if necessary::
#
# [1] http://www.w3.org/Daemon/User/Proxies/ProxyClients.html
#
# http_proxy=http://proxy.example.com:3128/ no_proxy=repo.example.net ./stack.sh
function export_proxy_variables() {
if [[ -n "$http_proxy" ]]; then
export http_proxy=$http_proxy
fi
if [[ -n "$https_proxy" ]]; then
export https_proxy=$https_proxy
fi
if [[ -n "$no_proxy" ]]; then
export no_proxy=$no_proxy
fi
}
# Grab a numbered field from python prettytable output
# Fields are numbered starting with 1
# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.
# get_field field-number
function get_field() {
while read data; do
if [ "$1" -lt 0 ]; then
field="(\$(NF$1))"
else
field="\$$(($1 + 1))"
fi
echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"
done
}
# Get the default value for HOST_IP
# get_default_host_ip fixed_range floating_range host_ip_iface host_ip
function get_default_host_ip() {
local fixed_range=$1
local floating_range=$2
local host_ip_iface=$3
local host_ip=$4
# Find the interface used for the default route
host_ip_iface=${host_ip_iface:-$(ip route | sed -n '/^default/{ s/.*dev \(\w\+\)\s\+.*/\1/; p; }' | head -1)}
# Search for an IP unless an explicit is set by ``HOST_IP`` environment variable
if [ -z "$host_ip" -o "$host_ip" == "dhcp" ]; then
host_ip=""
host_ips=`LC_ALL=C ip -f inet addr show ${host_ip_iface} | awk '/inet/ {split($2,parts,"/"); print parts[1]}'`
for IP in $host_ips; do
# Attempt to filter out IP addresses that are part of the fixed and
# floating range. Note that this method only works if the ``netaddr``
# python library is installed. If it is not installed, an error
# will be printed and the first IP from the interface will be used.
# If that is not correct set ``HOST_IP`` in ``localrc`` to the correct
# address.
if ! (address_in_net $IP $fixed_range || address_in_net $IP $floating_range); then
host_ip=$IP
break;
fi
done
fi
echo $host_ip
}
function _get_package_dir() {
local pkg_dir
if is_ubuntu; then
pkg_dir=$FILES/apts
elif is_fedora; then
pkg_dir=$FILES/rpms
elif is_suse; then
pkg_dir=$FILES/rpms-suse
else
exit_distro_not_supported "list of packages"
fi
echo "$pkg_dir"
}
# get_packages() collects a list of package names of any type from the
# prerequisite files in ``files/{apts|rpms}``. The list is intended
# to be passed to a package installer such as apt or yum.
#
# Only packages required for the services in 1st argument will be
# included. Two bits of metadata are recognized in the prerequisite files:
# - ``# NOPRIME`` defers installation to be performed later in stack.sh
# - ``# dist:DISTRO`` or ``dist:DISTRO1,DISTRO2`` limits the selection
# of the package to the distros listed. The distro names are case insensitive.
function get_packages() {
local services=$1
local package_dir=$(_get_package_dir)
local file_to_parse
local service
if [[ -z "$package_dir" ]]; then
echo "No package directory supplied"
return 1
fi
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
for service in general ${services//,/ }; do
# Allow individual services to specify dependencies
if [[ -e ${package_dir}/${service} ]]; then
file_to_parse="${file_to_parse} $service"
fi
# NOTE(sdague) n-api needs glance for now because that's where
# glance client is
if [[ $service == n-api ]]; then
if [[ ! $file_to_parse =~ nova ]]; then
file_to_parse="${file_to_parse} nova"
fi
if [[ ! $file_to_parse =~ glance ]]; then
file_to_parse="${file_to_parse} glance"
fi
elif [[ $service == c-* ]]; then
if [[ ! $file_to_parse =~ cinder ]]; then
file_to_parse="${file_to_parse} cinder"
fi
elif [[ $service == ceilometer-* ]]; then
if [[ ! $file_to_parse =~ ceilometer ]]; then
file_to_parse="${file_to_parse} ceilometer"
fi
elif [[ $service == s-* ]]; then
if [[ ! $file_to_parse =~ swift ]]; then
file_to_parse="${file_to_parse} swift"
fi
elif [[ $service == n-* ]]; then
if [[ ! $file_to_parse =~ nova ]]; then
file_to_parse="${file_to_parse} nova"
fi
elif [[ $service == g-* ]]; then
if [[ ! $file_to_parse =~ glance ]]; then
file_to_parse="${file_to_parse} glance"
fi
elif [[ $service == key* ]]; then
if [[ ! $file_to_parse =~ keystone ]]; then
file_to_parse="${file_to_parse} keystone"
fi
elif [[ $service == q-* ]]; then
if [[ ! $file_to_parse =~ quantum ]]; then
file_to_parse="${file_to_parse} quantum"
fi
fi
done
for file in ${file_to_parse}; do
local fname=${package_dir}/${file}
local OIFS line package distros distro
[[ -e $fname ]] || continue
OIFS=$IFS
IFS=$'\n'
for line in $(<${fname}); do
if [[ $line =~ "NOPRIME" ]]; then
continue
fi
if [[ $line =~ (.*)#.*dist:([^ ]*) ]]; then
# We are using BASH regexp matching feature.
package=${BASH_REMATCH[1]}
distros=${BASH_REMATCH[2]}
# In bash ${VAR,,} will lowecase VAR
[[ ${distros,,} =~ ${DISTRO,,} ]] && echo $package
continue
fi
echo ${line%#*}
done
IFS=$OIFS
done
}
# Determine OS Vendor, Release and Update
# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora
# Returns results in global variables:
# os_VENDOR - vendor name
# os_RELEASE - release
# os_UPDATE - update
# os_PACKAGE - package type
# os_CODENAME - vendor's codename for release
# GetOSVersion
GetOSVersion() {
# Figure out which vendor we are
if [[ -n "`which sw_vers 2>/dev/null`" ]]; then
# OS/X
os_VENDOR=`sw_vers -productName`
os_RELEASE=`sw_vers -productVersion`
os_UPDATE=${os_RELEASE##*.}
os_RELEASE=${os_RELEASE%.*}
os_PACKAGE=""
if [[ "$os_RELEASE" =~ "10.7" ]]; then
os_CODENAME="lion"
elif [[ "$os_RELEASE" =~ "10.6" ]]; then
os_CODENAME="snow leopard"
elif [[ "$os_RELEASE" =~ "10.5" ]]; then
os_CODENAME="leopard"
elif [[ "$os_RELEASE" =~ "10.4" ]]; then
os_CODENAME="tiger"
elif [[ "$os_RELEASE" =~ "10.3" ]]; then
os_CODENAME="panther"
else
os_CODENAME=""
fi
elif [[ -x $(which lsb_release 2>/dev/null) ]]; then
os_VENDOR=$(lsb_release -i -s)
os_RELEASE=$(lsb_release -r -s)
os_UPDATE=""
os_PACKAGE="rpm"
if [[ "Debian,Ubuntu,LinuxMint" =~ $os_VENDOR ]]; then
os_PACKAGE="deb"
elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then
lsb_release -d -s | grep -q openSUSE
if [[ $? -eq 0 ]]; then
os_VENDOR="openSUSE"
fi
elif [[ $os_VENDOR == "openSUSE project" ]]; then
os_VENDOR="openSUSE"
elif [[ $os_VENDOR =~ Red.*Hat ]]; then
os_VENDOR="Red Hat"
fi
os_CODENAME=$(lsb_release -c -s)
elif [[ -r /etc/redhat-release ]]; then
# Red Hat Enterprise Linux Server release 5.5 (Tikanga)
# CentOS release 5.5 (Final)
# CentOS Linux release 6.0 (Final)
# Fedora release 16 (Verne)
os_CODENAME=""
for r in "Red Hat" CentOS Fedora; do
os_VENDOR=$r
if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
ver=`sed -e 's/^.* \(.*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
os_CODENAME=${ver#*|}
os_RELEASE=${ver%|*}
os_UPDATE=${os_RELEASE##*.}
os_RELEASE=${os_RELEASE%.*}
break
fi
os_VENDOR=""
done
os_PACKAGE="rpm"
elif [[ -r /etc/SuSE-release ]]; then
for r in openSUSE "SUSE Linux"; do
if [[ "$r" = "SUSE Linux" ]]; then
os_VENDOR="SUSE LINUX"
else
os_VENDOR=$r
fi
if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then
os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`
os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`
os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`
break
fi
os_VENDOR=""
done
os_PACKAGE="rpm"
# If lsb_release is not installed, we should be able to detect Debian OS
elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then
os_VENDOR="Debian"
os_PACKAGE="deb"
os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')
os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')
fi
export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
}
# git update using reference as a branch.
# git_update_branch ref
function git_update_branch() {
GIT_BRANCH=$1
git checkout -f origin/$GIT_BRANCH
# a local branch might not exist
git branch -D $GIT_BRANCH || true
git checkout -b $GIT_BRANCH
}
# git update using reference as a tag. Be careful editing source at that repo
# as working copy will be in a detached mode
# git_update_tag ref
function git_update_tag() {
GIT_TAG=$1
git tag -d $GIT_TAG
# fetching given tag only
git fetch origin tag $GIT_TAG
git checkout -f $GIT_TAG
}
# git update using reference as a branch.
# git_update_remote_branch ref
function git_update_remote_branch() {
GIT_BRANCH=$1
git checkout -b $GIT_BRANCH -t origin/$GIT_BRANCH
}
# Translate the OS version values into common nomenclature
# Sets ``DISTRO`` from the ``os_*`` values
function GetDistro() {
GetOSVersion
if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then
# 'Everyone' refers to Ubuntu / Debian releases by the code name adjective
DISTRO=$os_CODENAME
elif [[ "$os_VENDOR" =~ (Fedora) ]]; then
# For Fedora, just use 'f' and the release
DISTRO="f$os_RELEASE"
elif [[ "$os_VENDOR" =~ (openSUSE) ]]; then
DISTRO="opensuse-$os_RELEASE"
elif [[ "$os_VENDOR" =~ (SUSE LINUX) ]]; then
# For SLE, also use the service pack
if [[ -z "$os_UPDATE" ]]; then
DISTRO="sle${os_RELEASE}"
else
DISTRO="sle${os_RELEASE}sp${os_UPDATE}"
fi
elif [[ "$os_VENDOR" =~ (Red Hat) || "$os_VENDOR" =~ (CentOS) ]]; then
# Drop the . release as we assume it's compatible
DISTRO="rhel${os_RELEASE::1}"
else
# Catch-all for now is Vendor + Release + Update
DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"
fi
export DISTRO
}
# Determine if current distribution is an Ubuntu-based distribution.
# It will also detect non-Ubuntu but Debian-based distros; this is not an issue
# since Debian and Ubuntu should be compatible.
# is_ubuntu
function is_ubuntu {
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
[ "$os_PACKAGE" = "deb" ]
}
# Determine if current distribution is a Fedora-based distribution
# (Fedora, RHEL, CentOS).
# is_fedora
function is_fedora {
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
[ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || [ "$os_VENDOR" = "CentOS" ]
}
# Determine if current distribution is a SUSE-based distribution
# (openSUSE, SLE).
# is_suse
function is_suse {
if [[ -z "$os_VENDOR" ]]; then
GetOSVersion
fi
[ "$os_VENDOR" = "openSUSE" ] || [ "$os_VENDOR" = "SUSE LINUX" ]
}
# Exit after outputting a message about the distribution not being supported.
# exit_distro_not_supported [optional-string-telling-what-is-missing]
function exit_distro_not_supported {
if [[ -z "$DISTRO" ]]; then
GetDistro
fi
if [ $# -gt 0 ]; then
die $LINENO "Support for $DISTRO is incomplete: no support for $@"
else
die $LINENO "Support for $DISTRO is incomplete."
fi
}
# git clone only if directory doesn't exist already. Since ``DEST`` might not
# be owned by the installation user, we create the directory and change the
# ownership to the proper user.
# Set global RECLONE=yes to simulate a clone when dest-dir exists
# Set global ERROR_ON_CLONE=True to abort execution with an error if the git repo
# does not exist (default is False, meaning the repo will be cloned).
# Uses global ``OFFLINE``
# git_clone remote dest-dir branch
function git_clone {
[[ "$OFFLINE" = "True" ]] && return
GIT_REMOTE=$1
GIT_DEST=$2
GIT_REF=$3
if echo $GIT_REF | egrep -q "^refs"; then
# If our branch name is a gerrit style refs/changes/...
if [[ ! -d $GIT_DEST ]]; then
[[ "$ERROR_ON_CLONE" = "True" ]] && exit 1
git clone $GIT_REMOTE $GIT_DEST
fi
cd $GIT_DEST
git fetch $GIT_REMOTE $GIT_REF && git checkout FETCH_HEAD
else
# do a full clone only if the directory doesn't exist
if [[ ! -d $GIT_DEST ]]; then
[[ "$ERROR_ON_CLONE" = "True" ]] && exit 1
git clone $GIT_REMOTE $GIT_DEST
cd $GIT_DEST
# This checkout syntax works for both branches and tags
git checkout $GIT_REF
elif [[ "$RECLONE" == "yes" ]]; then
# if it does exist then simulate what clone does if asked to RECLONE
cd $GIT_DEST
# set the url to pull from and fetch
git remote set-url origin $GIT_REMOTE
git fetch origin
# remove the existing ignored files (like pyc) as they cause breakage
# (due to the py files having older timestamps than our pyc, so python
# thinks the pyc files are correct using them)
find $GIT_DEST -name '*.pyc' -delete
# handle GIT_REF accordingly to type (tag, branch)
if [[ -n "`git show-ref refs/tags/$GIT_REF`" ]]; then
git_update_tag $GIT_REF
elif [[ -n "`git show-ref refs/heads/$GIT_REF`" ]]; then
git_update_branch $GIT_REF
elif [[ -n "`git show-ref refs/remotes/origin/$GIT_REF`" ]]; then
git_update_remote_branch $GIT_REF
else
echo $GIT_REF is neither branch nor tag
exit 1
fi
fi
fi
}
# Comment an option in an INI file
# inicomment config-file section option
function inicomment() {
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" "$file"
}
# Uncomment an option in an INI file
# iniuncomment config-file section option
function iniuncomment() {
local file=$1
local section=$2
local option=$3
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" "$file"
}
# Get an option from an INI file
# iniget config-file section option
function iniget() {
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
echo ${line#*=}
}
# Determinate is the given option present in the INI file
# ini_has_option config-file section option
function ini_has_option() {
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
[ -n "$line" ]
}
# Set an option in an INI file
# iniset config-file section option value
function iniset() {
local file=$1
local section=$2
local option=$3
local value=$4
if ! grep -q "^\[$section\]" "$file"; then
# Add section at the end
echo -e "\n[$section]" >>"$file"
fi
if ! ini_has_option "$file" "$section" "$option"; then
# Add it
sed -i -e "/^\[$section\]/ a\\
$option = $value
" "$file"
else
# Replace it
sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=[ \t]*\).*$|\1$value|" "$file"
fi
}
# Get a multiple line option from an INI file
# iniget_multiline config-file section option
function iniget_multiline() {
local file=$1
local section=$2
local option=$3
local values
values=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { s/^$option[ \t]*=[ \t]*//gp; }" "$file")
echo ${values}
}
# Set a multiple line option in an INI file
# iniset_multiline config-file section option value1 value2 valu3 ...
function iniset_multiline() {
local file=$1
local section=$2
local option=$3
shift 3
local values
for v in $@; do
# The later sed command inserts each new value in the line next to
# the section identifier, which causes the values to be inserted in
# the reverse order. Do a reverse here to keep the original order.
values="$v ${values}"
done
if ! grep -q "^\[$section\]" "$file"; then
# Add section at the end
echo -e "\n[$section]" >>"$file"
else
# Remove old values
sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file"
fi
# Add new ones
for v in $values; do
sed -i -e "/^\[$section\]/ a\\
$option = $v
" "$file"
done
}
# Append a new option in an ini file without replacing the old value
# iniadd config-file section option value1 value2 value3 ...
function iniadd() {
local file=$1
local section=$2
local option=$3
shift 3
local values="$(iniget_multiline $file $section $option) $@"
iniset_multiline $file $section $option $values
}
# Find out if a process exists by partial name.
# is_running name
function is_running() {
local name=$1
ps auxw | grep -v grep | grep ${name} > /dev/null
RC=$?
# some times I really hate bash reverse binary logic
return $RC
}
# is_service_enabled() checks if the service(s) specified as arguments are
# enabled by the user in ``ENABLED_SERVICES``.
#
# Multiple services specified as arguments are ``OR``'ed together; the test
# is a short-circuit boolean, i.e it returns on the first match.
#
# There are special cases for some 'catch-all' services::
# **nova** returns true if any service enabled start with **n-**
# **cinder** returns true if any service enabled start with **c-**
# **ceilometer** returns true if any service enabled start with **ceilometer**
# **glance** returns true if any service enabled start with **g-**
# **quantum** returns true if any service enabled start with **q-**
# **swift** returns true if any service enabled start with **s-**
# For backward compatibility if we have **swift** in ENABLED_SERVICES all the
# **s-** services will be enabled. This will be deprecated in the future.
#
# Uses global ``ENABLED_SERVICES``
# is_service_enabled service [service ...]
function is_service_enabled() {
services=$@
for service in ${services}; do
[[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && return 0
[[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && return 0
[[ ${service} == "cinder" && ${ENABLED_SERVICES} =~ "c-" ]] && return 0
[[ ${service} == "ceilometer" && ${ENABLED_SERVICES} =~ "ceilometer-" ]] && return 0
[[ ${service} == "glance" && ${ENABLED_SERVICES} =~ "g-" ]] && return 0
[[ ${service} == "quantum" && ${ENABLED_SERVICES} =~ "q-" ]] && return 0
[[ ${service} == "swift" && ${ENABLED_SERVICES} =~ "s-" ]] && return 0
[[ ${service} == s-* && ${ENABLED_SERVICES} =~ "swift" ]] && return 0
done
return 1
}
# remove extra commas from the input string (i.e. ``ENABLED_SERVICES``)
# _cleanup_service_list service-list
function _cleanup_service_list () {
echo "$1" | sed -e '
s/,,/,/g;
s/^,//;
s/,$//
'
}
# enable_service() adds the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are not already present.
#
# For example:
# enable_service qpid
#
# This function does not know about the special cases
# for nova, glance, and quantum built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# enable_service service [service ...]
function enable_service() {
local tmpsvcs="${ENABLED_SERVICES}"
for service in $@; do
if ! is_service_enabled $service; then
tmpsvcs+=",$service"
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
disable_negated_services
}
# disable_service() removes the services passed as argument to the
# ``ENABLED_SERVICES`` list, if they are present.
#
# For example:
# disable_service rabbit
#
# This function does not know about the special cases
# for nova, glance, and quantum built into is_service_enabled().
# Uses global ``ENABLED_SERVICES``
# disable_service service [service ...]
function disable_service() {
local tmpsvcs=",${ENABLED_SERVICES},"
local service
for service in $@; do
if is_service_enabled $service; then
tmpsvcs=${tmpsvcs//,$service,/,}
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}
# disable_all_services() removes all current services
# from ``ENABLED_SERVICES`` to reset the configuration
# before a minimal installation
# Uses global ``ENABLED_SERVICES``
# disable_all_services
function disable_all_services() {
ENABLED_SERVICES=""
}
# Remove all services starting with '-'. For example, to install all default
# services except rabbit (rabbit) set in ``localrc``:
# ENABLED_SERVICES+=",-rabbit"
# Uses global ``ENABLED_SERVICES``
# disable_negated_services
function disable_negated_services() {
local tmpsvcs="${ENABLED_SERVICES}"
local service
for service in ${tmpsvcs//,/ }; do
if [[ ${service} == -* ]]; then
tmpsvcs=$(echo ${tmpsvcs}|sed -r "s/(,)?(-)?${service#-}(,)?/,/g")
fi
done
ENABLED_SERVICES=$(_cleanup_service_list "$tmpsvcs")
}
# Distro-agnostic package installer
# install_package package [package ...]
function install_package() {
if is_ubuntu; then
[[ "$NO_UPDATE_REPOS" = "True" ]] || apt_get update
NO_UPDATE_REPOS=True
apt_get install "$@"
elif is_fedora; then
yum_install "$@"
elif is_suse; then
zypper_install "$@"
else
exit_distro_not_supported "installing packages"
fi
}
# Distro-agnostic package uninstaller
# uninstall_package package [package ...]
function uninstall_package() {
if is_ubuntu; then
apt_get purge "$@"
elif is_fedora; then
sudo yum remove -y "$@"
elif is_suse; then
sudo rpm -e "$@"
else
exit_distro_not_supported "uninstalling packages"
fi
}
# Distro-agnostic function to tell if a package is installed
# is_package_installed package [package ...]
function is_package_installed() {
if [[ -z "$@" ]]; then
return 1
fi
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
if [[ "$os_PACKAGE" = "deb" ]]; then
dpkg -l "$@" > /dev/null
elif [[ "$os_PACKAGE" = "rpm" ]]; then
rpm --quiet -q "$@"
else
exit_distro_not_supported "finding if a package is installed"
fi
}
# Test if the named environment variable is set and not zero length
# is_set env-var
function is_set() {
local var=\$"$1"
eval "[ -n \"$var\" ]" # For ex.: sh -c "[ -n \"$var\" ]" would be better, but several exercises depends on this
}
# Wrapper for ``pip install`` to set cache and proxy environment variables
# Uses globals ``OFFLINE``, ``PIP_DOWNLOAD_CACHE``, ``PIP_USE_MIRRORS``,
# ``TRACK_DEPENDS``, ``*_proxy`
# pip_install package [package ...]
function pip_install {
[[ "$OFFLINE" = "True" || -z "$@" ]] && return
if [[ -z "$os_PACKAGE" ]]; then
GetOSVersion
fi
if [[ $TRACK_DEPENDS = True ]]; then
source $DEST/.venv/bin/activate
CMD_PIP=$DEST/.venv/bin/pip
SUDO_PIP="env"
else
SUDO_PIP="sudo"
CMD_PIP=$(get_pip_command)
fi
if [[ is_fedora && $DISTRO =~ (rhel6) ]]; then
# RHEL6 pip by default doesn't have this (was introduced
# around 0.8.1 or so)
PIP_USE_MIRRORS=${PIP_USE_MIRRORS:-False}
else
PIP_USE_MIRRORS=${PIP_USE_MIRRORS:-True}
fi
if [[ "$PIP_USE_MIRRORS" != "False" ]]; then
PIP_MIRROR_OPT="--use-mirrors"
fi
$SUDO_PIP PIP_DOWNLOAD_CACHE=${PIP_DOWNLOAD_CACHE:-/var/cache/pip} \
HTTP_PROXY=$http_proxy \
HTTPS_PROXY=$https_proxy \
NO_PROXY=$no_proxy \
$CMD_PIP install $PIP_MIRROR_OPT $@
}
# Service wrapper to restart services
# restart_service service-name
function restart_service() {
if is_ubuntu; then
sudo /usr/sbin/service $1 restart
else
sudo /sbin/service $1 restart
fi
}
# _run_process() is designed to be backgrounded by run_process() to simulate a
# fork. It includes the dirty work of closing extra filehandles and preparing log
# files to produce the same logs as screen_it(). The log filename is derived
# from the service name and global-and-now-misnamed SCREEN_LOGDIR
# _run_process service "command-line"
function _run_process() {
local service=$1
local command="$2"
# Undo logging redirections and close the extra descriptors
exec 1>&3
exec 2>&3
exec 3>&-
exec 6>&-
if [[ -n ${SCREEN_LOGDIR} ]]; then
exec 1>&${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log 2>&1
ln -sf ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${1}.log
# TODO(dtroyer): Hack to get stdout from the Python interpreter for the logs.
export PYTHONUNBUFFERED=1
fi
exec /bin/bash -c "$command"
die "$service exec failure: $command"
}
# run_process() launches a child process that closes all file descriptors and
# then exec's the passed in command. This is meant to duplicate the semantics
# of screen_it() without screen. PIDs are written to
# $SERVICE_DIR/$SCREEN_NAME/$service.pid
# run_process service "command-line"
function run_process() {
local service=$1
local command="$2"
# Spawn the child process
_run_process "$service" "$command" &
echo $!
}
# Helper to launch a service in a named screen
# screen_it service "command-line"
function screen_it {
SCREEN_NAME=${SCREEN_NAME:-stack}
SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}
USE_SCREEN=$(trueorfalse True $USE_SCREEN)
if is_service_enabled $1; then
# Append the service to the screen rc file
screen_rc "$1" "$2"
if [[ "$USE_SCREEN" = "True" ]]; then
screen -S $SCREEN_NAME -X screen -t $1
if [[ -n ${SCREEN_LOGDIR} ]]; then
screen -S $SCREEN_NAME -p $1 -X logfile ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log
screen -S $SCREEN_NAME -p $1 -X log on
ln -sf ${SCREEN_LOGDIR}/screen-${1}.${CURRENT_LOG_TIME}.log ${SCREEN_LOGDIR}/screen-${1}.log
fi
# sleep to allow bash to be ready to be send the command - we are
# creating a new window in screen and then sends characters, so if
# bash isn't running by the time we send the command, nothing happens
sleep 1.5
NL=`echo -ne '\015'`
screen -S $SCREEN_NAME -p $1 -X stuff "$2 || touch \"$SERVICE_DIR/$SCREEN_NAME/$1.failure\"$NL"
else
# Spawn directly without screen
run_process "$1" "$2" >$SERVICE_DIR/$SCREEN_NAME/$service.pid
fi
fi
}