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Improve script for switching postgres primary

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This commit is contained in:
Râu Cao 2023-07-21 14:55:43 +02:00
parent 8072fafa46
commit e5805169f5
Signed by: raucao
GPG Key ID: 15E65F399D084BA9
1 changed files with 6 additions and 2 deletions
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scripts/postgresql/switch_primary.sh
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@ -13,7 +13,11 @@ new_primary_ip=`bundle exec knife node show $new_primary_hostname -a knife_zero.
echo "Switching primary to $new_primary_hostname ($new_primary_ip)"
bundle exec knife ssh name:$new_primary_hostname -a knife_zero.host "sudo su - postgres -c '/usr/lib/postgresql/12/bin/pg_ctl promote -D /var/lib/postgresql/12/main'"
echo "Replacing pg.kosmos.local host entries with $new_primary_ip"
bundle exec knife ssh roles:postgresql_client -a knife_zero.host "sudo sed -r \"s/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\s(pg.kosmos.local)/$new_primary_ip\t\1/\" -i /etc/hosts"
echo "Stopping postgresql on $old_primary_hostname"
bundle exec knife ssh name:$old_primary_hostname -a knife_zero.host "sudo systemctl stop postgresql@12-main.service"
echo "Replacing pg.kosmos.local host entries with $new_primary_ip"
bundle exec knife ssh roles:postgresql_client -a knife_zero.host "sudo sed -r \"s/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+\s(pg.kosmos.local)/$new_primary_ip\t\1/\" -i /etc/hosts"
# TODO
# 1. Change roles in node configs
# 2. Converge new primary