initial commit

scripts/postgres/init-db/20-create-databases.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+set -eu
+set -o pipefail 2>/dev/null || true
+
+# Create application databases and ensure ownership and grants (idempotent).
+
+: "${GITEA_DB:=giteadb}"
+: "${GITEA_DB_USER:=gitea}"
+: "${ODOO_DB:=odoodb}"
+: "${ODOO_DB_USER:=odoo}"
+
+echo "[init] create-databases: gitea_db=${GITEA_DB}, odoo_db=${ODOO_DB}"
+
+db_exists() {
+  psql -tAc "SELECT 1 FROM pg_database WHERE datname='$1'" | grep -q 1 || return 1
+}
+
+db_owner() {
+  psql -tAc "SELECT pg_catalog.pg_get_userbyid(datdba) FROM pg_database WHERE datname='$1'" | tr -d '[:space:]'
+}
+
+create_or_alter_db() {
+  local db="$1"; shift
+  local owner="$1"; shift
+
+  if db_exists "$db"; then
+    echo "[init] database '$db' already exists"
+    current_owner=$(db_owner "$db") || current_owner=""
+    if [ "$current_owner" != "$owner" ]; then
+      echo "[init] changing owner of '$db' from '$current_owner' to '$owner'"
+      psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -c "ALTER DATABASE \"${db}\" OWNER TO \"${owner}\";"
+    fi
+  else
+    echo "[init] creating database '$db' with owner '$owner'"
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -c "CREATE DATABASE \"${db}\" OWNER \"${owner}\";"
+  fi
+
+  echo "[init] granting privileges on ${db} to ${owner}"
+  psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -c "GRANT ALL PRIVILEGES ON DATABASE \"${db}\" TO \"${owner}\";"
+}
+
+create_or_alter_db "${GITEA_DB}" "${GITEA_DB_USER}"
+create_or_alter_db "${ODOO_DB}" "${ODOO_DB_USER}"
+
+echo "[init] create-databases finished"