45 lines
No EOL
1.3 KiB
Bash
Executable file
45 lines
No EOL
1.3 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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# Start a PostgreSQL 14 container
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docker run --rm -d --name pg14 -v $(pwd)/$data_directory:/var/lib/postgresql/data -e "POSTGRES_PASSWORD=password" 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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docker exec pg14 pg_dumpall -U postgres > dump.sql
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# Stop the old container
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docker stop pg14
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# Start a PostgreSQL 16 container
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docker run --rm -d --name pg16 -v $(pwd)/$data_directory.new:/var/lib/postgresql/data -e "POSTGRES_PASSWORD=password" postgres:$new_version-alpine
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# Load the db into the new container
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docker exec -i pg16 psql -U postgres < dump.sql
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# Stop the new container
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docker stop pg16
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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 $data_directory.new $data_directory" |