db-init: rename cloned source database to target's instance code (#347 fast-path correctness)

templates/odoo-deployment.yaml

@@ -69,6 +69,7 @@ spec:
             - |
               set -eu
               DBNAME="{{ .Values.instance.code }}"
+              CLONE_FROM="{{ .Values.instance.cloneFromCode | default "" }}"
               echo "── ensuring database $DBNAME exists ──"
               # Wait for PG to accept connections (max 60s)
               for i in $(seq 1 30); do
@@ -76,6 +77,25 @@ spec:
                 echo "(waiting for postgres, $i/30)"
                 sleep 2
               done
+              # VolumeClone fast-path rename (ADR 0003 phase 4): when
+              # spawn-env clones a source PG PVC, the data dir carries
+              # source's database name. Rename it to target's instance
+              # code BEFORE the existence check below, so the rest of
+              # the script sees the correct DB name. Idempotent — if
+              # CLONE_FROM == DBNAME or target already exists, skip.
+              if [ -n "$CLONE_FROM" ] && [ "$CLONE_FROM" != "$DBNAME" ]; then
+                if PGPASSWORD="$PASSWORD" psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -tAc \
+                     "SELECT 1 FROM pg_database WHERE datname = '$CLONE_FROM'" | grep -q 1; then
+                  if ! PGPASSWORD="$PASSWORD" psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -tAc \
+                       "SELECT 1 FROM pg_database WHERE datname = '$DBNAME'" | grep -q 1; then
+                    echo "── renaming cloned database $CLONE_FROM → $DBNAME ──"
+                    PGPASSWORD="$PASSWORD" psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres \
+                      -c "ALTER DATABASE \"$CLONE_FROM\" RENAME TO \"$DBNAME\""
+                  else
+                    echo "(both $CLONE_FROM and $DBNAME exist — leaving rename to operator)"
+                  fi
+                fi
+              fi
               # createdb is idempotent if we wrap with an existence check.
               if PGPASSWORD="$PASSWORD" psql -h "$HOST" -p "$PORT" -U "$USER" -d postgres -tAc \
                    "SELECT 1 FROM pg_database WHERE datname = '$DBNAME'" | grep -q 1; then