aboutsummaryrefslogtreecommitdiffstats
path: root/extraconfig/tasks/pacemaker_common_functions.sh
blob: d1dd5d1d352ac334f83a67ec40214bfaa8378a35 (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
#!/bin/bash

set -eu

DEBUG="true" # set false if the verbosity is a problem
SCRIPT_NAME=$(basename $0)
function log_debug {
  if [[ $DEBUG = "true" ]]; then
    echo "`date` $SCRIPT_NAME tripleo-upgrade $(facter hostname) $1"
  fi
}

function is_bootstrap_node {
  if [ "$(hiera -c /etc/puppet/hiera.yaml bootstrap_nodeid | tr '[:upper:]' '[:lower:]')" = "$(facter hostname | tr '[:upper:]' '[:lower:]')" ]; then
    log_debug "Node is bootstrap"
    echo "true"
  fi
}

function check_resource_pacemaker {
  if [ "$#" -ne 3 ]; then
    echo_error "ERROR: check_resource function expects 3 parameters, $# given"
    exit 1
  fi

  local service=$1
  local state=$2
  local timeout=$3

  if [[ -z $(is_bootstrap_node) ]] ; then
    log_debug "Node isn't bootstrap, skipping check for $service to be $state here "
    return
  else
    log_debug "Node is bootstrap checking $service to be $state here"
  fi

  if [ "$state" = "stopped" ]; then
    match_for_incomplete='Started'
  else # started
    match_for_incomplete='Stopped'
  fi

  nodes_local=$(pcs status  | grep ^Online | sed 's/.*\[ \(.*\) \]/\1/g' | sed 's/ /\|/g')
  if timeout -k 10 $timeout crm_resource --wait; then
    node_states=$(pcs status --full | grep "$service" | grep -v Clone | { egrep "$nodes_local" || true; } )
    if echo "$node_states" | grep -q "$match_for_incomplete"; then
      echo_error "ERROR: cluster finished transition but $service was not in $state state, exiting."
      exit 1
    else
      echo "$service has $state"
    fi
  else
    echo_error "ERROR: cluster remained unstable for more than $timeout seconds, exiting."
    exit 1
  fi

}

function pcmk_running {
  if [[ $(systemctl is-active pacemaker) = "active" ]] ; then
    echo "true"
  fi
}

function is_systemd_unknown {
  local service=$1
  if [[ $(systemctl is-active "$service") = "unknown" ]]; then
    log_debug "$service found to be unkown to systemd"
    echo "true"
  fi
}

function grep_is_cluster_controlled {
  local service=$1
  if [[ -n $(systemctl status $service -l | grep Drop-In -A 5 | grep pacemaker) ||
      -n $(systemctl status $service -l | grep "Cluster Controlled $service") ]] ; then
    log_debug "$service is pcmk managed from systemctl grep"
    echo "true"
  fi
}


function is_systemd_managed {
  local service=$1
  #if we have pcmk check to see if it is managed there
  if [[ -n $(pcmk_running) ]]; then
    if [[ -z $(pcs status --full | grep $service)  && -z $(is_systemd_unknown $service) ]] ; then
      log_debug "$service found to be systemd managed from pcs status"
      echo "true"
    fi
  else
    # if it is "unknown" to systemd, then it is pacemaker managed
    if [[  -n $(is_systemd_unknown $service) ]] ; then
      return
    elif [[ -z $(grep_is_cluster_controlled $service) ]] ; then
      echo "true"
    fi
  fi
}

function is_pacemaker_managed {
  local service=$1
  #if we have pcmk check to see if it is managed there
  if [[ -n $(pcmk_running) ]]; then
    if [[ -n $(pcs status --full | grep $service) ]]; then
      log_debug "$service found to be pcmk managed from pcs status"
      echo "true"
    fi
  else
    # if it is unknown to systemd, then it is pcmk managed
    if [[ -n $(is_systemd_unknown $service) ]]; then
      echo "true"
    elif [[ -n $(grep_is_cluster_controlled $service) ]] ; then
      echo "true"
    fi
  fi
}

function is_managed {
  local service=$1
  if [[ -n $(is_pacemaker_managed $service) || -n $(is_systemd_managed $service) ]]; then
    echo "true"
  fi
}

function check_resource_systemd {

  if [ "$#" -ne 3 ]; then
    echo_error "ERROR: check_resource function expects 3 parameters, $# given"
    exit 1
  fi

  local service=$1
  local state=$2
  local timeout=$3
  local check_interval=3

  if [ "$state" = "stopped" ]; then
    match_for_incomplete='active'
  else # started
    match_for_incomplete='inactive'
  fi

  log_debug "Going to check_resource_systemd for $service to be $state"

  #sanity check is systemd managed:
  if [[ -z $(is_systemd_managed $service) ]]; then
    echo "ERROR - $service not found to be systemd managed."
    exit 1
  fi

  tstart=$(date +%s)
  tend=$(( $tstart + $timeout ))
  while (( $(date +%s) < $tend )); do
    if [[ "$(systemctl is-active $service)" = $match_for_incomplete ]]; then
      echo "$service not yet $state, sleeping $check_interval seconds."
      sleep $check_interval
    else
      echo "$service is $state"
      return
    fi
  done

  echo "Timed out waiting for $service to go to $state after $timeout seconds"
  exit 1
}


function check_resource {
  local service=$1
  local pcmk_managed=$(is_pacemaker_managed $service)
  local systemd_managed=$(is_systemd_managed $service)

  if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
    log_debug "ERROR $service managed by both systemd and pcmk - SKIPPING"
    return
  fi

  if [[ -n $pcmk_managed ]]; then
    check_resource_pacemaker $@
    return
  elif [[ -n $systemd_managed ]]; then
    check_resource_systemd $@
    return
  fi
  log_debug "ERROR cannot check_resource for $service, not managed here?"
}

function manage_systemd_service {
  local action=$1
  local service=$2
  log_debug "Going to systemctl $action $service"
  systemctl $action $service
}

function manage_pacemaker_service {
  local action=$1
  local service=$2
  # not if pacemaker isn't running!
  if [[ -z $(pcmk_running) ]]; then
    echo "$(facter hostname) pacemaker not active, skipping $action $service here"
  elif [[ -n $(is_bootstrap_node) ]]; then
    log_debug "Going to pcs resource $action $service"
    pcs resource $action $service
  fi
}

function stop_or_disable_service {
  local service=$1
  local pcmk_managed=$(is_pacemaker_managed $service)
  local systemd_managed=$(is_systemd_managed $service)

  if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
    log_debug "Skipping stop_or_disable $service due to management conflict"
    return
  fi

  log_debug "Stopping or disabling $service"
  if [[ -n $pcmk_managed ]]; then
    manage_pacemaker_service disable $service
    return
  elif [[ -n $systemd_managed ]]; then
    manage_systemd_service stop $service
    return
  fi
  log_debug "ERROR: $service not managed here?"
}

function start_or_enable_service {
  local service=$1
  local pcmk_managed=$(is_pacemaker_managed $service)
  local systemd_managed=$(is_systemd_managed $service)

  if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
    log_debug "Skipping start_or_enable $service due to management conflict"
    return
  fi

  log_debug "Starting or enabling $service"
  if [[ -n $pcmk_managed ]]; then
    manage_pacemaker_service enable $service
    return
  elif [[ -n $systemd_managed ]]; then
    manage_systemd_service start $service
    return
  fi
  log_debug "ERROR $service not managed here?"
}

function restart_service {
  local service=$1
  local pcmk_managed=$(is_pacemaker_managed $service)
  local systemd_managed=$(is_systemd_managed $service)

  if [[ -n $pcmk_managed && -n $systemd_managed ]] ; then
    log_debug "ERROR $service managed by both systemd and pcmk - SKIPPING"
    return
  fi

  log_debug "Restarting $service"
  if [[ -n $pcmk_managed ]]; then
    manage_pacemaker_service restart $service
    return
  elif [[ -n $systemd_managed ]]; then
    manage_systemd_service restart $service
    return
  fi
  log_debug "ERROR $service not managed here?"
}

function echo_error {
    echo "$@" | tee /dev/fd2
}

# swift is a special case because it is/was never handled by pacemaker
# when stand-alone swift is used, only swift-proxy is running on controllers
function systemctl_swift {
    services=( openstack-swift-account-auditor openstack-swift-account-reaper openstack-swift-account-replicator openstack-swift-account \
               openstack-swift-container-auditor openstack-swift-container-replicator openstack-swift-container-updater openstack-swift-container \
               openstack-swift-object-auditor openstack-swift-object-replicator openstack-swift-object-updater openstack-swift-object openstack-swift-proxy )
    local action=$1
    case $action in
        stop)
            services=$(systemctl | grep openstack-swift- | grep running | awk '{print $1}')
            ;;
        start)
            enable_swift_storage=$(hiera -c /etc/puppet/hiera.yaml tripleo::profile::base::swift::storage::enable_swift_storage)
            if [[ $enable_swift_storage != "true" ]]; then
                services=( openstack-swift-proxy )
            fi
            ;;
        *)  echo "Unknown action $action passed to systemctl_swift"
            exit 1
            ;; # shouldn't ever happen...
    esac
    for service in ${services[@]}; do
        manage_systemd_service $action $service
    done
}

# Special-case OVS for https://bugs.launchpad.net/tripleo/+bug/1635205
# Update condition and add --notriggerun for +bug/1669714
function special_case_ovs_upgrade_if_needed {
    if rpm -qa | grep "^openvswitch-2.5.0-14" || rpm -q --scripts openvswitch | awk '/postuninstall/,/*/' | grep "systemctl.*try-restart" ; then
        echo "Manual upgrade of openvswitch - ovs-2.5.0-14 or restart in postun detected"
        rm -rf OVS_UPGRADE
        mkdir OVS_UPGRADE && pushd OVS_UPGRADE
        echo "Attempting to downloading latest openvswitch with yumdownloader"
        yumdownloader --resolve openvswitch
        for pkg in $(ls -1 *.rpm);  do
            if rpm -U --test $pkg 2>&1 | grep "already installed" ; then
                echo "Looks like newer version of $pkg is already installed, skipping"
            else
                echo "Updating $pkg with --nopostun --notriggerun"
                rpm -U --replacepkgs --nopostun --notriggerun $pkg
            fi
        done
        popd
    else
        echo "Skipping manual upgrade of openvswitch - no restart in postun detected"
    fi

}

# This code is meant to fix https://bugs.launchpad.net/tripleo/+bug/1686357 on
# existing setups via a minor update workflow and be idempotent. We need to
# run this before the yum update because we fix this up even when there are no
# packages to update on the system (in which case the script exits).
# This code must be called with set +eu (due to the ocf scripts being sourced)
function fixup_wrong_ipv6_vip {
    # This XPath query identifies of all the VIPs in pacemaker with netmask /64. Those are IPv6 only resources that have the wrong netmask
    # This gives the address of the resource in the CIB, one address per line. For example:
    # /cib/configuration/resources/primitive[@id='ip-2001.db8.ca2.4..10']/instance_attributes[@id='ip-2001.db8.ca2.4..10-instance_attributes']\
    # /nvpair[@id='ip-2001.db8.ca2.4..10-instance_attributes-cidr_netmask']
    vip_xpath_query="//resources/primitive[@type='IPaddr2']/instance_attributes/nvpair[@name='cidr_netmask' and @value='64']"
    vip_xpath_xml_addresses=$(cibadmin --query --xpath "$vip_xpath_query" -e 2>/dev/null)
    # The following extracts the @id value of the resource
    vip_resources_to_fix=$(echo -e "$vip_xpath_xml_addresses" | sed -n "s/.*primitive\[@id='\([^']*\)'.*/\1/p")
    # Runnning this in a subshell so that sourcing files cannot possibly affect the running script
    (
        OCF_PATH="/usr/lib/ocf/lib/heartbeat"
        if [ -n "$vip_resources_to_fix" -a -f $OCF_PATH/ocf-shellfuncs -a -f $OCF_PATH/findif.sh ]; then
            source $OCF_PATH/ocf-shellfuncs
            source $OCF_PATH/findif.sh
            for resource in $vip_resources_to_fix; do
                echo "Updating IPv6 VIP $resource with a /128 and a correct addrlabel"
                # The following will give us something like:
                # <nvpair id="ip-2001.db8.ca2.4..10-instance_attributes-ip" name="ip" value="2001:db8:ca2:4::10"/>
                ip_cib_nvpair=$(cibadmin --query --xpath "//resources/primitive[@type='IPaddr2' and @id='$resource']/instance_attributes/nvpair[@name='ip']")
                # Let's filter out the value of the nvpair to get the ip address
                ip_address=$(echo $ip_cib_nvpair | xmllint --xpath 'string(//nvpair/@value)' -)
                OCF_RESKEY_cidr_netmask="64"
                OCF_RESKEY_ip="$ip_address"
                # Unfortunately due to https://bugzilla.redhat.com/show_bug.cgi?id=1445628
                # we need to find out the appropiate nic given the ip address.
                nic=$(findif $ip_address | awk '{ print $1 }')
                ret=$?
                if [ -z "$nic" -o $ret -ne 0 ]; then
                    echo "NIC autodetection failed for VIP $ip_address, not updating VIPs"
                    # Only exits the subshell
                    exit 1
                fi
                ocf_run -info pcs resource update --wait "$resource" ip="$ip_address" cidr_netmask=128 nic="$nic" lvs_ipv6_addrlabel=true lvs_ipv6_addrlabel_value=99
                ret=$?
                if [ $ret -ne 0 ]; then
                    echo "pcs resource update for VIP $resource failed, not updating VIPs"
                    # Only exits the subshell
                    exit 1
                fi
            done
        fi
    )
}