Add self-hosted project folder
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259
postgres_upgrade.sh
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259
postgres_upgrade.sh
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#!/usr/bin/env bash
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set -euo pipefail
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trap 'echo "⚠️ An error occurred. Consider running rollback or checking backups."' ERR
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COMPOSE=./docker-compose.yaml
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SERVICE=postgres
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DATA_DIR=./database
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PG_VERSION_FILE="$DATA_DIR/PG_VERSION"
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echo "🧪 Validating docker-compose config..."
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docker compose -f "$COMPOSE" config > /dev/null || {
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echo "❌ docker-compose config failed. Restore aborted."
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exit 1
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}
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if [ ! -d "$DATA_DIR" ]; then
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echo "❌ Expected data directory '${DATA_DIR}' does not exist. Aborting."
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exit 1
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fi
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# echo "🔍 Checking if Postgres service is already running..."
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# if ! docker compose ps --services --filter "status=running" | grep -q "^${SERVICE}$"; then
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# echo "⚠️ '${SERVICE}' service is not running. Skipping auto-upgrade step."
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# echo "🔄 Attempting to start '${SERVICE}' service to detect version..."
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# docker compose up -d $SERVICE
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# echo "⏳ Waiting for PostgreSQL to become ready..."
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# for i in $(seq 1 60); do
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# if docker compose exec -T $SERVICE pg_isready -U postgres > /dev/null 2>&1; then
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# break
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# fi
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# echo "⏳ Still waiting... (${i}s)"
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# sleep 1
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# done
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# if ! docker compose exec -T $SERVICE pg_isready -U postgres > /dev/null 2>&1; then
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# echo "❌ PostgreSQL did not become ready in time. Aborting."
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# echo "💡 Postgres is not running. Revert to the old version on you docker-compose.yaml file and start start the service!"
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# echo "1. Run: docker compose up -d --force-recreate $SERVICE"
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# echo "2. Run: docker compose --profile postgres-rollback run --rm postgres-auto-rollback"
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# exit 1
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# fi
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# fi
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# echo "⏳ Waiting for PostgreSQL to become ready before dumping SQL..."
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# for i in $(seq 1 120); do
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# if docker compose exec -T $SERVICE pg_isready -U postgres > /dev/null 2>&1; then
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# break
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# fi
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# echo "⏳ Still waiting... (${i}s)"
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# sleep 1
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# done
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# if ! docker compose exec -T $SERVICE pg_isready -U postgres > /dev/null 2>&1; then
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# echo "❌ PostgreSQL did not become ready in time. Aborting."
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# exit 1
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# fi
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echo "📡 Detecting running PostgreSQL version..."
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OLD_VERSION=$(cat "$PG_VERSION_FILE")
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echo "🔍 Detected running PostgreSQL version: $OLD_VERSION"
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OLD_MAJOR=$(echo "$OLD_VERSION" | cut -d. -f1)
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echo "🔍 Detected running PostgreSQL major version: $OLD_MAJOR"
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OLD_IMG="${OLD_VERSION}-alpine"
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echo "🆕 Detecting target version from docker-compose.yaml..."
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NEW_IMG=$(docker compose -f $COMPOSE config | grep "image:" | grep "$SERVICE" | awk '{print $2}')
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# Ensure NEW_IMG was detected
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if [[ -z "$NEW_IMG" ]]; then
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echo "❌ Failed to detect target Postgres image from $COMPOSE. Aborting."
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exit 1
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fi
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NEW_VERSION=$(echo "$NEW_IMG" | sed -E 's/^postgres://; s/-alpine.*$//')
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NEW_MAJOR=$(echo "$NEW_VERSION" | cut -d. -f1)
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echo "🔁 From $OLD_VERSION (major $OLD_MAJOR) → $NEW_VERSION (major $NEW_MAJOR)"
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if [[ "$NEW_VERSION" == *beta* ]] || [[ "$NEW_VERSION" == *rc* ]] || [[ "$NEW_VERSION" == *bookworm* ]]; then
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echo "❌ Target version $NEW_VERSION appears to be a pre-release (beta/rc/bookworm). Skipping upgrade."
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echo "💡 Please upgrade to a stable version of Postgres."
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exit 1
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fi
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# Early exit if no upgrade needed
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if [ "$OLD_MAJOR" -eq "$NEW_MAJOR" ]; then
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echo "✅ Already running target major version. Skipping upgrade."
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exit 0
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fi
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# Paths
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BACKUP_DIR=${DATA_DIR}_backup_${OLD_IMG}_$(date +%Y%m%d_%H%M%S)
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OLD_DATA_DIR=./database_old
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UPGRADE_DIR=./database_tmp_upgrade
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# 1. Stop services
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echo "🛑 Stopping services..."
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docker compose -f $COMPOSE down
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# 2. Backup database directory
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echo "🔐 Creating backup at ${BACKUP_DIR}..."
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cp -a "$DATA_DIR" "$BACKUP_DIR"
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echo "📦 Dumping full SQL backup using temporary PostgreSQL container..."
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DUMP_FILE="backup_dump_${OLD_IMG}_$(date +%Y%m%d_%H%M%S).sql"
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TMP_CONTAINER_NAME="pg-dump-${OLD_MAJOR}"
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# Run temporary postgres container with existing data dir
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docker run -d --rm \
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--name "$TMP_CONTAINER_NAME" \
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-v "$DATA_DIR:/var/lib/postgresql/data" \
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-e POSTGRES_USER=postgres \
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postgres:${OLD_IMG}
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echo "⏳ Waiting for pg_dump container to become ready..."
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for i in $(seq 1 30); do
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if docker exec "$TMP_CONTAINER_NAME" pg_isready -U postgres > /dev/null 2>&1; then
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break
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fi
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echo "⏳ Still waiting... (${i}s)"
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sleep 1
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done
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if ! docker exec "$TMP_CONTAINER_NAME" pg_isready -U postgres > /dev/null 2>&1; then
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echo "❌ Temporary container for SQL dump did not become ready. Aborting."
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docker rm -f "$TMP_CONTAINER_NAME" > /dev/null 2>&1 || true
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exit 1
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fi
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docker exec "$TMP_CONTAINER_NAME" pg_dumpall -U postgres > "$DUMP_FILE"
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echo "🧹 Cleaning up older SQL dump files..."
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ALL_DUMPS=( $(ls -t backup_dump_*.sql 2>/dev/null || true) )
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if [ "${#ALL_DUMPS[@]}" -gt 1 ]; then
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LATEST_DUMP="${ALL_DUMPS[0]}"
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TO_DELETE=( "${ALL_DUMPS[@]:1}" )
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for dump in "${TO_DELETE[@]}"; do
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echo "🗑️ Removing old dump: $dump"
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rm -f "$dump"
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done
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echo "✅ Only latest dump '${LATEST_DUMP}' preserved."
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else
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echo "ℹ️ Only one dump file found. No cleanup needed."
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fi
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docker rm -f "$TMP_CONTAINER_NAME" > /dev/null 2>&1 || true
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# 3. Create upgrade target folder
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echo "📁 Creating upgrade workspace ${UPGRADE_DIR}..."
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mkdir -p "$UPGRADE_DIR"
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# 4. Perform pg_upgrade
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echo "🔧 Running pg_upgrade via tianon image..."
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docker run --rm \
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-v "${BACKUP_DIR}:/var/lib/postgresql/${OLD_MAJOR}/data" \
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-v "${UPGRADE_DIR}:/var/lib/postgresql/${NEW_MAJOR}/data" \
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tianon/postgres-upgrade:${OLD_MAJOR}-to-${NEW_MAJOR} --copy
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# 5. Promote new data
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echo "🔁 Swapping data directories..."
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rm -rf "$DATA_DIR"
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mv "$UPGRADE_DIR" "$DATA_DIR"
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# 6. Restore pg_hba.conf before startup
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echo "🔄 Restoring pg_hba.conf if it existed..."
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cp "${BACKUP_DIR}/pg_hba.conf" "${DATA_DIR}/pg_hba.conf" || echo "✅ No custom pg_hba.conf to restore."
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# 7. Update image in docker-compose.yaml
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echo "📝 Updating docker-compose to use image ${NEW_IMG}..."
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sed -i.bak -E "s#postgres:[^ ]*${OLD_MAJOR}[^ ]*#postgres:${NEW_IMG}#" "$COMPOSE"
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# 8. Start container
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echo "🚀 Starting upgraded container..."
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docker compose -f $COMPOSE up -d $SERVICE
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# 9. Wait until DB is accepting connections
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echo "⏳ Waiting for PostgreSQL to become ready..."
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until docker compose exec -T $SERVICE pg_isready -U postgres; do
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sleep 1
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done
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# 10. Collation and Reindexing
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echo "🔧 Reindexing and refreshing collation versions..."
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docker compose exec $SERVICE bash -c '
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set -e
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DBS=$(psql -U postgres -tAc "SELECT datname FROM pg_database WHERE datallowconn")
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for db in $DBS; do
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echo "➡️ Reindexing $db..."
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psql -U postgres -d "$db" -c "REINDEX DATABASE \"$db\";" || true
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psql -U postgres -d "$db" -c "REINDEX SYSTEM \"$db\";" || true
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echo "➡️ Refreshing collation version for $db..."
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if ! psql -U postgres -d "$db" -c "ALTER DATABASE \"$db\" REFRESH COLLATION VERSION;" 2>/dev/null; then
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echo "⚠️ Collation refresh failed. Forcing reset..."
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psql -U postgres -d postgres -c "UPDATE pg_database SET datcollversion = NULL WHERE datname = '\''$db'\'';" || true
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psql -U postgres -d "$db" -c "ALTER DATABASE \"$db\" REFRESH COLLATION VERSION;" || \
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echo "❌ Still failed for $db. Review manually."
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fi
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echo "➡️ Refreshing system collations in $db..."
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for coll in $(psql -U postgres -d "$db" -tAc "SELECT nspname || '\''.'\'' || quote_ident(collname) FROM pg_collation JOIN pg_namespace ON collnamespace = pg_namespace.oid WHERE collprovider = '\''c'\'';"); do
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echo " 🌀 ALTER COLLATION $coll REFRESH VERSION;"
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psql -U postgres -d "$db" -c "ALTER COLLATION $coll REFRESH VERSION;" || \
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echo " ⚠️ Skipped $coll due to version mismatch (likely Alpine)."
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done
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done
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'
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# 11. Suppress collation warnings on musl (Alpine)
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if docker compose exec $SERVICE ldd --version 2>&1 | grep -qi 'musl'; then
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echo "🧼 Detected musl libc (Alpine). Resetting all datcollversion values..."
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docker compose exec -T $SERVICE psql -U postgres -d postgres -c \
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"UPDATE pg_database SET datcollversion = NULL WHERE datcollversion IS NOT NULL;"
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fi
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# 12. Make delete_old_cluster.sh executable
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DELETE_SCRIPT="./delete_old_cluster.sh"
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if [[ -f "$DELETE_SCRIPT" ]]; then
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chmod +x "$DELETE_SCRIPT"
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fi
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# 13. Make rollback script executable
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ROLLBACK_SCRIPT="./rollback_postgres_upgrade.sh"
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if [[ -f "$ROLLBACK_SCRIPT" ]]; then
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chmod +x "$ROLLBACK_SCRIPT"
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fi
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# 14. Final message
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echo "✅ Upgrade complete!"
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echo "🎉 Postgres is now running ${NEW_IMG} with data in '${DATA_DIR}'."
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echo "🧰 Old version is saved in '${OLD_DATA_DIR}'."
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echo "💡 Next steps:"
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echo " - ✅ Run smoke tests"
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echo " - 🧹 If all OK - PLEASE MAKE SURE ON YOUR WEBSITE, YOU HAVE ALL THE DATA YOU NEED AFTER THE UPGRADE, run:"
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echo " rm -rf ./database_backup_* ./database_upgraded_*"
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echo "🧹 Cleaning up older backups..."
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find . -maxdepth 1 -type d -name "database_backup_*" ! -path "./${BACKUP_DIR##*/}" -exec rm -rf {} +
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echo "✅ Only latest backup '${BACKUP_DIR}' preserved."
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# Step 15: Restart full application
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echo "🔄 Pulling latest images..."
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if ! docker compose pull; then
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echo "❌ Failed to pull images. Aborting."
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exit 1
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fi
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echo "🔄 Starting full application stack..."
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if ! docker compose up -d --force-recreate; then
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echo "❌ Failed to start application stack. Aborting."
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exit 1
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fi
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echo "✅ Deployment completed successfully."
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