Roman Vanicek
446ab90753
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44 lines
1.2 KiB
Bash
44 lines
1.2 KiB
Bash
#!/bin/bash
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set -e
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DATA_DIR="/var/lib/postgresql/data"
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OLD_VERSION_FILE="$DATA_DIR/PG_VERSION"
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NEW_VERSION="15"
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OLD_BIN="/usr/lib/postgresql/14/bin"
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NEW_BIN="/usr/lib/postgresql/15/bin"
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if [ -f "$OLD_VERSION_FILE" ]; then
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OLD_VERSION=$(cat "$OLD_VERSION_FILE")
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if [ "$OLD_VERSION" != "$NEW_VERSION" ]; then
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echo "Data version ($OLD_VERSION) differs from engine ($NEW_VERSION). Starting upgrade..."
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# Move old data to a temporary folder
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mkdir -p $DATA_DIR/old_data
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mv $DATA_DIR/* $DATA_DIR/old_data/ || true
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# Initialize new data directory
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mkdir $DATA_DIR/new_data
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initdb -D $DATA_DIR/new_data
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# Prevent error "You must have read and write access in the current directory."
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cd $DATA_DIR
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# Run pg_upgrade
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# --link is used to avoid copying files (fast, but requires a backup!)
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pg_upgrade \
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-d $DATA_DIR/old_data \
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-D $DATA_DIR/new_data \
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-b "$OLD_BIN" \
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-B "$NEW_BIN" \
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--link
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# Clean-up
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echo "Upgrade complete. Cleaning up..."
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rm -rf $DATA_DIR/old_data
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mv $DATA_DIR/new_data/* $DATA_DIR/
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rmdir $DATA_DIR/new_data
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fi
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fi
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exec $@ |