update with latest build versions, includes custom build for postgres and migrating from v16 to v18

build/postgresql-postgis/build-upgrade-image.sh

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+#!/bin/bash
+set -euo pipefail
+
+# =============================================================================
+# Build script for PostgreSQL 16→18 Upgrade Image with PostGIS
+# This image is used ONLY for the pg_upgrade process via CloudNativePG
+# =============================================================================
+
+# Configuration
+REGISTRY="registry.keyboardvagabond.com/library"
+IMAGE_NAME="cnpg-postgis"
+TAG="upgrade-16-to-18"
+FULL_IMAGE="${REGISTRY}/${IMAGE_NAME}:${TAG}"
+LOCAL_IMAGE="${IMAGE_NAME}:${TAG}"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
+log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+log_step() { echo -e "${BLUE}[STEP]${NC} $1"; }
+
+cd "$(dirname "$0")"
+
+echo ""
+echo "========================================================"
+echo "  PostgreSQL 16→18 Upgrade Image Build (ARM64)"
+echo "========================================================"
+echo ""
+log_info "This builds a special image with BOTH PG16 and PG18 binaries"
+log_info "Required for CloudNativePG declarative pg_upgrade"
+log_warn "Build time: ~30-45 minutes (builds PostGIS twice)"
+log_info "Target: ${FULL_IMAGE}"
+echo ""
+
+# =============================================================================
+# Build the upgrade image
+# =============================================================================
+log_step "Starting Docker build with Dockerfile.upgrade..."
+
+BUILD_START=$(date +%s)
+
+docker build \
+    --platform linux/arm64 \
+    --progress=plain \
+    -f Dockerfile.upgrade \
+    -t "${FULL_IMAGE}" \
+    -t "${LOCAL_IMAGE}" \
+    .
+
+BUILD_END=$(date +%s)
+BUILD_TIME=$((BUILD_END - BUILD_START))
+BUILD_MINS=$((BUILD_TIME / 60))
+BUILD_SECS=$((BUILD_TIME % 60))
+
+log_info "Build completed in ${BUILD_MINS}m ${BUILD_SECS}s"
+
+# =============================================================================
+# Test the upgrade image
+# =============================================================================
+echo ""
+log_step "Running verification tests..."
+
+# Test 1: Both PostgreSQL versions present
+log_info "Test 1: Checking PostgreSQL versions..."
+docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" bash -c '
+    echo "  PG16: $(/usr/lib/postgresql/16/bin/postgres --version)"
+    echo "  PG18: $(/usr/lib/postgresql/18/bin/postgres --version)"
+'
+
+# Test 2: pg_upgrade available
+log_info "Test 2: Checking pg_upgrade..."
+docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" bash -c '
+    /usr/lib/postgresql/18/bin/pg_upgrade --version && echo "  ✓ pg_upgrade available"
+'
+
+# Test 3: User ID check
+log_info "Test 3: Checking postgres user ID (should be 26)..."
+POSTGRES_UID=$(docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" id -u postgres)
+if [ "$POSTGRES_UID" = "26" ]; then
+    echo "  ✓ postgres UID is 26 (CNPG compatible)"
+else
+    log_error "postgres UID is ${POSTGRES_UID}, expected 26"
+    exit 1
+fi
+
+# Test 4: PostGIS for both versions
+log_info "Test 4: Checking PostGIS libraries..."
+docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" bash -c '
+    echo "  PG16 PostGIS:"
+    ls /usr/lib/postgresql/16/lib/postgis*.so 2>/dev/null | xargs -I{} basename {} | sed "s/^/    /"
+    echo "  PG18 PostGIS:"
+    ls /usr/lib/postgresql/18/lib/postgis*.so 2>/dev/null | xargs -I{} basename {} | sed "s/^/    /"
+'
+
+# Test 5: Shared libraries
+log_info "Test 5: Checking shared libraries..."
+docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" bash -c '
+    echo "  GEOS: $(geos-config --version 2>/dev/null || echo "not found")"
+    echo "  GDAL: $(gdal-config --version 2>/dev/null || echo "not found")"
+    echo "  PROJ: $(projinfo 2>&1 | head -1 || echo "installed")"
+'
+
+# Test 6: Barman tools
+log_info "Test 6: Checking barman-cloud tools..."
+docker run --rm --platform linux/arm64 "${LOCAL_IMAGE}" \
+    bash -c 'ls /usr/local/bin/barman* >/dev/null 2>&1 && echo "  ✓ barman-cloud tools available" || echo "  ✗ barman-cloud tools not found"'
+
+# =============================================================================
+# Summary
+# =============================================================================
+echo ""
+echo "========================================================"
+log_info "Upgrade image build completed!"
+echo "========================================================"
+echo ""
+echo "Images built:"
+echo "  Local:  ${LOCAL_IMAGE}"
+echo "  Harbor: ${FULL_IMAGE}"
+echo ""
+echo "Build time: ${BUILD_MINS}m ${BUILD_SECS}s"
+echo ""
+echo "To push to Harbor registry:"
+echo "  docker push ${FULL_IMAGE}"
+echo ""
+echo "IMPORTANT: This image is for pg_upgrade ONLY!"
+echo "After upgrade completes, switch to: ${REGISTRY}/${IMAGE_NAME}:18-3.6"
+echo ""
+log_warn "Next steps:"
+echo "  1. Push image: docker push ${FULL_IMAGE}"
+echo "  2. Take Longhorn snapshot of postgres-shared volumes"
+echo "  3. Update cluster-shared.yaml imageName to: ${FULL_IMAGE}"
+echo "  4. Apply and monitor the upgrade"
+echo "  5. After success, switch to regular 18-3.6 image"
+echo ""