docker-compose.yml

# Copyright 2026 Katteli Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

services:
  # The mount path stays inside the project: one anywhere else arrives empty
  # in the guest, and `disks build` refuses it before it packs anything.
  clickhouse:
    image: clickhouse/clickhouse-server:24.8.14.39-alpine
    environment:
      # The users are in config.xml. Without this the entrypoint writes a
      # users.d file restricting `default` to loopback, which would refuse
      # the other service if anything ever loaded users.d.
      CLICKHOUSE_SKIP_USER_SETUP: "1"
    volumes:
      - ./config.xml:/etc/clickhouse-server/config.xml:ro
    healthcheck:
      # ClickHouse takes tens of seconds of guest time to accept connections;
      # a client that sleeps and retries races it.
      test: ["CMD", "clickhouse-client", "-q", "SELECT 1"]
      interval: 2s
      timeout: 5s
      retries: 60
      start_period: 5s

  # On the same image, so the pack carries one tar. Exiting ends the project:
  # the machine runs compose with --abort-on-container-exit.
  client:
    image: clickhouse/clickhouse-server:24.8.14.39-alpine
    depends_on:
      clickhouse:
        condition: service_healthy
    entrypoint: ["/bin/sh", "-c"]
    command:
      - >
        echo "rows: $$(clickhouse-client --host clickhouse -q
        'SELECT count() FROM numbers(1000)')";
        echo "version: $$(clickhouse-client --host clickhouse -q
        'SELECT version()')";
        echo CLICKHOUSE-OK