Floatingghost
df40ab6831
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80 lines
No EOL
2.2 KiB
Bash
Executable file
80 lines
No EOL
2.2 KiB
Bash
Executable file
#!/bin/bash
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set -euo pipefail
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# USAGE:
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# migrate-postgresql-version.sh <data_directory> <old_version> <new_version>
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if [ "$#" -ne 3 ]; then
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echo "USAGE: migrate-postgresql-version.sh <data_directory> <old_version> <new_version>"
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echo "Example: migrate-postgresql-version.sh pgdata 14 16"
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exit 1
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fi
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data_directory=$1
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old_version=$2
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new_version=$3
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new_data_directory=$data_directory.new
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# we'll need the credentials to create the new container
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echo "Please provide the credentials for your database"
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echo "If you set a different password for the old container, you'll need to provide it here! Check your config file if you're not sure"
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echo ""
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echo "Database user (default 'akkoma'):"
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read DB_USER
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echo "Database password (default: 'akkoma'):"
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read DB_PASS
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echo "Database name (default: 'akkoma'):"
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read DB_NAME
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echo ""
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echo "Ok! Using user:$DB_USER to migrate db:$DB_NAME from version $old_version to $new_version"
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trap "docker stop pg$old_version pg$new_version" INT TERM
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# Start a PostgreSQL 14 container
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docker run --rm -d --name pg$old_version \
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-v $(pwd)/$data_directory:/var/lib/postgresql/data \
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-e "POSTGRES_PASSWORD=$DB_PASS" \
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-e "POSTGRES_USER=$DB_USER" \
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-e "POSTGRES_DB=$DB_NAME" \
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postgres:$old_version-alpine
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# wait a bit for the container to start
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sleep 10
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# Dump the db from the old container
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echo "Dumping your old database..."
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docker exec pg$old_version pg_dumpall -U $DB_USER > dump.sql
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# Stop the old container
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echo "Stopping the old database..."
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docker stop pg$old_version
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# Start a PostgreSQL 16 container
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echo "Creating a new database with version $new_version..."
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docker run --rm -d --name pg$new_version \
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-v $(pwd)/$new_data_directory:/var/lib/postgresql/data \
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-e "POSTGRES_PASSWORD=password" \
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-e "POSTGRES_USER=$DB_USER" \
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-e "POSTGRES_DB=$DB_NAME" \
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postgres:$new_version-alpine
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# wait for it
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sleep 10
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# Load the db into the new container
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docker exec -i pg$new_version psql -U $DB_USER < dump.sql
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# Stop the new container
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docker stop pg$new_version
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# Remove the dump file
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# rm dump.sql
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echo "Migration complete! Your new database folder is $data_directory.new - you can now move your old data and replace it"
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echo "mv $data_directory $data_directory.old"
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echo "mv $new_data_directory $data_directory" |