fix: update alpine image

Author: sushantdhiman

9.5-alpine/00-extensions.sql

@@ -60,4 +60,5 @@ RUN set -ex \
     && rm -rf /usr/src/postgis \
     && apk del .fetch-deps .build-deps .build-deps-testing
 
-COPY 00-extensions.sql /docker-entrypoint-initdb.d/
+COPY init-sequelize-db.sh /docker-entrypoint-initdb.d/
+COPY update-sequelize-db.sh /usr/local/bin

9.5-alpine/Dockerfile

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+# Perform all actions as $POSTGRES_USER
+export PGUSER="$POSTGRES_USER"
+
+# Load PostGIS into both template_database and $POSTGRES_DB
+for DB in template_postgis "$POSTGRES_DB"; do
+	echo "Loading PostGIS extensions into $DB"
+	"${psql[@]}" --dbname="$DB" <<-'EOSQL'
+		CREATE EXTENSION IF NOT EXISTS postgis;
+		CREATE EXTENSION IF NOT EXISTS btree_gist;
+		CREATE EXTENSION IF NOT EXISTS hstore;
+EOSQL
+done

9.5-alpine/init-sequelize-db.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -e
+
+# Perform all actions as $POSTGRES_USER
+export PGUSER="$POSTGRES_USER"
+
+POSTGIS_VERSION="${POSTGIS_VERSION%%+*}"
+
+# Load PostGIS into both template_database and $POSTGRES_DB
+for DB in template_postgis "$POSTGRES_DB" "${@}"; do
+    echo "Updating PostGIS extensions '$DB' to $POSTGIS_VERSION"
+    psql --dbname="$DB" -c "
+        -- Upgrade PostGIS (includes raster)
+        CREATE EXTENSION IF NOT EXISTS postgis VERSION '$POSTGIS_VERSION';
+        ALTER EXTENSION postgis  UPDATE TO '$POSTGIS_VERSION';
+    "
+done

9.5-alpine/update-sequelize-db.sh

@@ -0,0 +1,18 @@
+# Sequelize PostGIS
+
+Postgres image for Sequelize with support for essential extensions
+
+## Known Issues / Errors
+
+If you encounter errors due to PostGIS update
+
+```bash
+OperationalError: could not access file "$libdir/postgis-X.X"
+```
+
+Run
+
+```bash
+docker exec postgres-95 update-sequelize-db.sh
+```
+