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upgrade

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alexbelgium
2025-05-29 16:36:12 +02:00
parent 80077b26cb
commit 6e24fd4f5c
2 changed files with 63 additions and 21 deletions
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82
postgres/rootfs/etc/cont-init.d/99-run.sh
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@@ -40,38 +40,80 @@ upgrade_postgres_if_needed() {
if [ "$CLUSTER_VERSION" != "$IMAGE_VERSION" ]; then
bashio::log.warning "Postgres data directory version is $CLUSTER_VERSION but image wants $IMAGE_VERSION. Running upgrade..."
# Export variables for the upgrade script
export DATA_DIR="$PGDATA"
export BINARIES_DIR="/usr/lib/postgresql"
export BACKUP_DIR="/config/backups"
export PSQL_VERSION="$IMAGE_VERSION"
export SUPPORTED_POSTGRES_VERSIONS="$CLUSTER_VERSION $IMAGE_VERSION" # Fix for linkyard script bug
export SUPPORTED_POSTGRES_VERSIONS="$CLUSTER_VERSION $IMAGE_VERSION"
# Ensure both old and new server binaries are present
apt-get update &>/dev/null
apt-get install -y procps rsync "postgresql-$IMAGE_VERSION" "postgresql-$CLUSTER_VERSION" &>/dev/null
# Download and execute the upgrade script as the postgres user
TMP_SCRIPT=$(mktemp)
wget https://raw.githubusercontent.com/linkyard/postgres-upgrade/refs/heads/main/upgrade-postgres.sh -O "$TMP_SCRIPT"
chmod +x "$TMP_SCRIPT"
# Run as the postgres user (required by pg_ctl)
if command -v gosu >/dev/null 2>&1; then
if ! gosu postgres bash -u "$TMP_SCRIPT"; then
bashio::log.error "Postgres major version upgrade failed. Aborting startup."
exit 1
fi
else
if ! su - postgres -c "bash -u $TMP_SCRIPT"; then
bashio::log.error "Postgres major version upgrade failed. Aborting startup."
exit 1
fi
# Sanity checks
if [ ! -d "$BINARIES_DIR/$CLUSTER_VERSION/bin" ]; then
bashio::log.error "Old postgres binaries not found at $BINARIES_DIR/$CLUSTER_VERSION/bin"
exit 1
fi
if [ ! -d "$BINARIES_DIR/$IMAGE_VERSION/bin" ]; then
bashio::log.error "New postgres binaries not found at $BINARIES_DIR/$IMAGE_VERSION/bin"
exit 1
fi
bashio::log.info "PostgreSQL major version upgrade complete."
# Prepare backup
mkdir -p "$BACKUP_DIR"
backup_target="$BACKUP_DIR/postgresql-$CLUSTER_VERSION"
bashio::log.info "Backing up data directory to $backup_target..."
rsync -a --delete "$PGDATA/" "$backup_target/"
if [ $? -ne 0 ]; then
bashio::log.error "Backup with rsync failed!"
exit 1
fi
# Start old Postgres
bashio::log.info "Starting old Postgres ($CLUSTER_VERSION) to capture encoding/locale settings"
su - postgres -c "$BINARIES_DIR/$CLUSTER_VERSION/bin/pg_ctl -w -D '$PGDATA' start"
LC_COLLATE=$(su - postgres -c "$BINARIES_DIR/$CLUSTER_VERSION/bin/psql -d postgres -Atc 'SHOW LC_COLLATE;'")
LC_CTYPE=$(su - postgres -c "$BINARIES_DIR/$CLUSTER_VERSION/bin/psql -d postgres -Atc 'SHOW LC_CTYPE;'")
ENCODING=$(su - postgres -c "$BINARIES_DIR/$CLUSTER_VERSION/bin/psql -d postgres -Atc 'SHOW server_encoding;'")
bashio::log.info "Detected cluster: LC_COLLATE=$LC_COLLATE, LC_CTYPE=$LC_CTYPE, ENCODING=$ENCODING"
# Stop old Postgres
bashio::log.info "Stopping old Postgres ($CLUSTER_VERSION)"
su - postgres -c "$BINARIES_DIR/$CLUSTER_VERSION/bin/pg_ctl -w -D '$PGDATA' stop"
# Move aside data directory
rm -rf "$PGDATA"
# Init new cluster
bashio::log.info "Initializing new data cluster for $IMAGE_VERSION"
su - postgres -c "$BINARIES_DIR/$IMAGE_VERSION/bin/initdb --encoding=$ENCODING --lc-collate=$LC_COLLATE --lc-ctype=$LC_CTYPE -D '$PGDATA'"
# Upgrade using pg_upgrade
bashio::log.info "Running pg_upgrade from $CLUSTER_VERSION → $IMAGE_VERSION"
chmod 700 "$PGDATA"
chmod 700 "$backup_target"
su - postgres -c "$BINARIES_DIR/$IMAGE_VERSION/bin/pg_upgrade \
-b '$BINARIES_DIR/$CLUSTER_VERSION/bin' \
-B '$BINARIES_DIR/$IMAGE_VERSION/bin' \
-d '$backup_target' \
-D '$PGDATA'"
if [ $? -ne 0 ]; then
bashio::log.error "pg_upgrade failed!"
exit 1
fi
# Copy original postgresql.conf back if needed
if [ -f "$backup_target/postgresql.conf" ]; then
cp "$backup_target/postgresql.conf" "$PGDATA"
fi
bashio::log.info "Upgrade completed successfully."
RESTART_NEEDED=true
# After upgrade, PGDATA version matches IMAGE_VERSION
else
bashio::log.info "PostgreSQL data directory version ($CLUSTER_VERSION) matches image version ($IMAGE_VERSION)."
fi