ca054bd8f7
The galera server role has quite a bit going on within it and because of recent improvements in Ansible we can make better use of tasks, blocks, facts, local facts, and organization. This change tunes the role up following some of our better/more modern patterns allowing the role to not only be more efficient but also easier to understand and improves the roles idempotency. Change-Id: If189a8192f22aafb168587361ca8e6903c918697 Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
73 lines
2.1 KiB
Bash
73 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright 2017, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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## Shell Opts ----------------------------------------------------------------
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set -e
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## Functions -----------------------------------------------------------------
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function cleanup {
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echo "Running Cleanup."
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systemctl unset-environment _WSREP_NEW_CLUSTER || systemctl set-environment _WSREP_NEW_CLUSTER=''
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if [[ -f "/etc/my.cnf.d/99_bootstrap.cnf" ]]; then
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rm /etc/my.cnf.d/99_bootstrap.cnf
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fi
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}
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function wait_operational {
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WAITCMD="while ! mysql --silent --skip-column-names -e 'SHOW STATUS LIKE \"wsrep_evs_state\"' | grep -wq \"OPERATIONAL\"; do sleep 5; done"
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if ! timeout 180 sh -c "${WAITCMD}"; then
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echo "Cluster failed to return an \"OPERATIONAL\" state"
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return 1
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else
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echo "Cluster is now OPERATIONAL"
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return 0
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fi
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}
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function bootstrap_opts {
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cat > /etc/my.cnf.d/99_bootstrap.cnf <<EOF
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[mysqld]
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wsrep_new_cluster
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EOF
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}
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## Main ----------------------------------------------------------------------
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trap cleanup EXIT INT TERM
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EXIT_CODE=0
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if ! systemctl status mysql > /dev/null; then
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systemctl set-environment _WSREP_NEW_CLUSTER='--wsrep-new-cluster'
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if grep -rniq -e suse -e opensuse /etc/os-release; then
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bootstrap_opts
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fi
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if systemctl start mysql; then
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EXIT_CODE=3
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else
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echo "Cluster bootstrap failed."
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systemctl status mysql
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exit 99
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fi
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fi
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wait_operational
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cat <<EOF
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NOTICE: Exit code 0 and 3 are success.
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Exit 0 is no change, exit 3 is change.
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Current Exit Code "${EXIT_CODE}"
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EOF
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exit ${EXIT_CODE}
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