feat: add PostGIS

Signed-off-by: Niccolò Fei <[email protected]>

Author: NiccoloFei

.github/workflows/bake.yml

@@ -30,6 +30,8 @@ jobs:
           filters: |
             pgvector:
               - 'pgvector/**'
+            postgis:
+              - 'postgis/**'
 
       # Compute a matrix containing the list of all extensions that have been modified
       - name: Compute matrix

.github/workflows/update.yml

@@ -47,8 +47,6 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-        with:
-          persist-credentials: false
 
       - name: Fetch latest extension versions
         id: fetch_versions
@@ -61,11 +59,17 @@ jobs:
           readarray -t POSTGRES_MAJORS < <(sed -n '/variable "pgVersions"/,/]/ { s/^[[:space:]]*"\([^"]*\)".*/\1/p }' docker-bake.hcl)
           # Get the extension name
           EXT_NAME=$(jq -r '.metadata.name' "$EXTENSION_NAME/metadata.json")
+          # Get the extension major version
+          EXT_MAJOR=$(jq -r '.metadata.major_version' "$EXTENSION_NAME/metadata.json")
 
           for DISTRO in "${DISTROS[@]}"; do
             for MAJOR in "${POSTGRES_MAJORS[@]}"; do
+              PKG="postgresql-${MAJOR}-${EXT_NAME}"
+              if [[ -n "$EXT_MAJOR" ]] && [[ "$EXT_MAJOR" != "null" ]]; then
+                PKG="postgresql-${MAJOR}-${EXT_NAME}-${EXT_MAJOR}"
+              fi
               VERSION=$(curl -s "https://apt.postgresql.org/pub/repos/apt/dists/$DISTRO-pgdg/main/binary-amd64/Packages" \
-                | awk -v pkg="postgresql-${MAJOR}-${EXT_NAME}" '
+                | awk -v pkg="${PKG}" '
                     $1 == "Package:" && $2 == pkg {show=1; next}
                     show && $1 == "Version:" {print $2; show=0}
                   ' \

README.md

@@ -21,6 +21,7 @@ in CloudNativePG.
 ## Supported Extensions
 
 - [pgvector](pgvector) - Open-source vector similarity search for PostgreSQL
+- [pgvector](postgis) - Open-source geospatial database extension for PostgreSQL
 
 ---
 

docker-bake.hcl

@@ -56,6 +56,7 @@ target "default" {
   args = {
     PG_MAJOR = "${pgVersion}"
     EXT_VERSION = "${getExtensionPackage(distro, pgVersion)}"
+    EXT_MAJOR = "${metadata.major_version}"
     BASE = "${getBaseImage(distro, pgVersion)}"
   }
 

postgis/Dockerfile

@@ -0,0 +1,52 @@
+ARG BASE=ghcr.io/cloudnative-pg/postgresql:18-minimal-trixie
+FROM $BASE AS builder
+
+ARG PG_MAJOR
+ARG EXT_VERSION
+ARG EXT_MAJOR
+
+USER 0
+
+RUN set -eux && \
+	# Initial system libraries
+	ldconfig -p | awk '{print $NF}' | grep '^/' | sort | uniq > /tmp/base-image-libs.out && \
+	# Install PostGIS
+	apt-get update && \
+	apt-get install -y --no-install-recommends "postgresql-${PG_MAJOR}-postgis-${EXT_MAJOR}=${EXT_VERSION}"
+
+# Gather PostGIS system libraries and their licenses
+RUN mkdir -p /system /licenses && \
+	# Get libraries
+	ldd /usr/lib/postgresql/${PG_MAJOR}/lib/address_standardizer*.so \
+		/usr/lib/postgresql/${PG_MAJOR}/lib/postgis*.so \
+		| awk '{print $3}' | grep '^/' | sort | uniq > /tmp/all-deps.out && \
+	comm -13 /tmp/base-image-libs.out /tmp/all-deps.out > /tmp/libraries.out && \
+	for lib in $(cat /tmp/libraries.out); do cp -a "${lib%.so*}.so"* /system; done && \
+	# Get licenses
+	for lib in $(find /system -maxdepth 1 -type f -name '*.so*'); do \
+		pkg=$(dpkg -S "$(basename "$lib")" | awk -F: '{print $1}'); \
+		[ -z "$pkg" ] && continue; \
+		mkdir -p "/licenses/$pkg" && cp -a /usr/share/doc/"$pkg"/* "/licenses/$pkg/"; \
+	done
+
+
+FROM scratch
+ARG PG_MAJOR
+ARG EXT_MAJOR
+
+# Licenses
+COPY --from=builder /licenses /licenses/
+COPY --from=builder /usr/share/doc/postgresql-${PG_MAJOR}-postgis-${EXT_MAJOR}/copyright /licenses/postgresql-${PG_MAJOR}-postgis-${EXT_MAJOR}/
+
+# Libraries
+COPY --from=builder /usr/lib/postgresql/${PG_MAJOR}/lib/address_standardizer* /usr/lib/postgresql/${PG_MAJOR}/lib/postgis* /lib/
+COPY --from=builder /usr/lib/postgresql/18/lib/bitcode/ /lib/bitcode/
+
+# Share
+COPY --from=builder /usr/share/postgresql/${PG_MAJOR}/extension/address_standardizer* /usr/share/postgresql/${PG_MAJOR}/extension/postgis* /share/extension/
+COPY --from=builder /usr/share/postgresql/${PG_MAJOR}/contrib/postgis* /share/contrib/
+
+# System libs
+COPY --from=builder /system /system/
+
+USER 65532:65532

postgis/README.md

@@ -0,0 +1,3 @@
+# PostGIS
+
+TODO

postgis/metadata.json

@@ -0,0 +1,19 @@
+{
+  "metadata": {
+    "name": "postgis",
+    "sql_name": "postgis",
+    "shared_preload_libraries": [],
+    "extension_control_path": [],
+    "dynamic_library_path": [],
+    "ld_library_path": ["/system"],
+    "major_version": "3",
+    "versions": {
+      "bookworm": {
+        "18": "3.6.0+dfsg-3.pgdg12+1"
+      },
+      "trixie": {
+        "18": "3.6.0+dfsg-3.pgdg13+1"
+      }
+    }
+  }
+}