41 lines
1.1 KiB
Bash
41 lines
1.1 KiB
Bash
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#!/bin/bash
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new_master=${1}
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if ! [[ ${new_master} =~ sunet\.se$ ]]; then
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new_master="${new_master}.$(hostname -d)"
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fi
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new_master_ip=$(host -t A "${new_master}" | awk '{print $NF}')
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if [[ ${?} -ne 0 ]] || [[ "x${new_master_ip}" == "x" ]]; then
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echo "usage: ${0} <fqdn of new redis master>"
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echo "example: ${0} node3.sunet.drive.test.sunet.se"
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exit 1
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fi
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ssh_command="ssh -q -t -o StrictHostKeyChecking=off -l script -i /root/.ssh/id_script"
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declare -a all_nodes
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#<% @config['app'].each do |node| %>
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all_nodes+=('<%= node %>')
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#<% end %>
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declare -a slave_nodes
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for node in "${all_nodes[@]}"; do
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if [[ "${node}" != "${new_master_ip}" ]]; then
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slave_nodes+=("${node}")
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fi
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done
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for node in "${slave_nodes[@]}" ${new_master}; do
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${ssh_command} "${node}" "sudo /home/script/bin/stop_sentinel.sh stop_cosmos"
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done
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${ssh_command} "${new_master}" "sudo /usr/local/bin/redis-cli slaveof no one"
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for node in "${slave_nodes[@]}"; do
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${ssh_command} "${node}" "sudo /usr/local/bin/redis-cli slaveof ${new_master_ip} 6379"
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done
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for node in "${slave_nodes[@]}" ${new_master}; do
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${ssh_command} "${node}" "sudo /home/script/bin/start_sentinel.sh clear_cosmos"
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done
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