45 lines
1.5 KiB
Bash
45 lines
1.5 KiB
Bash
#!/bin/bash
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set -e
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MIGRATION_MARKER=$PGDATA/migration_in_progress
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OLDDATA=$PGDATA/old_data
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NEWDATA=$PGDATA/new_data
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if [ -e $MIGRATION_MARKER ]; then
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echo "FATAL: migration was started but did not complete in a previous run. manual recovery necessary"
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exit 1
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fi
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if [ -f $PGDATA/PG_VERSION ]; then
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DATA_VERSION=$(cat $PGDATA/PG_VERSION)
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if [ -n "$DATA_VERSION" -a "$PG_MAJOR" != "$DATA_VERSION" ]; then
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echo "postgres data version $DATA_VERSION found, but need $PG_MAJOR. Starting migration"
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echo "Installing postgres $DATA_VERSION"
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sed -i "s/$/ $DATA_VERSION/" /etc/apt/sources.list.d/pgdg.list
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apt-get update && apt-get install -y --no-install-recommends \
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postgresql-$DATA_VERSION \
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&& rm -rf /var/lib/apt/lists/*
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echo "shuffling around"
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gosu postgres mkdir $OLDDATA $NEWDATA
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chmod 700 $OLDDATA $NEWDATA
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mv $PGDATA/* $OLDDATA/ || true
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touch $MIGRATION_MARKER
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echo "running initdb"
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# abuse entrypoint script for initdb by making server error out
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gosu postgres bash -c "export PGDATA=$NEWDATA ; /usr/local/bin/docker-entrypoint.sh --invalid-arg || true"
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echo "running pg_upgrade"
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cd /tmp
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gosu postgres pg_upgrade --link -b /usr/lib/postgresql/$DATA_VERSION/bin -d $OLDDATA -D $NEWDATA -U $POSTGRES_USER
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cp $OLDDATA/pg_hba.conf $NEWDATA/
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mv $NEWDATA/* $PGDATA
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rm -rf $OLDDATA
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rmdir $NEWDATA
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rm $MIGRATION_MARKER
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echo "migration complete"
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fi
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fi
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/usr/local/bin/docker-entrypoint.sh postgres
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