1 环境准备

选用一台腾讯云主机，最便宜的那种，为了方便，选择使用容器镜像选项，该配置默认安装了docker和python。

2 安装zipkin

准备docker-compose.yml文件，内容如下

version: '3'
services:
  zipkin:
    image: openzipkin/zipkin
    ports:
      - "9411:9411"
    depends_on:
      - mysql
    environment:
      - STORAGE_TYPE=mysql
      - MYSQL_HOST=mysql
      - MYSQL_PORT=3306
      - MYSQL_USER=root
      - MYSQL_PASS=123456
    networks:
      - zipkin-network

  mysql:
    image: mysql:5.7
    environment:
      - MYSQL_ROOT_PASSWORD=123456
      - MYSQL_DATABASE=zipkin
    volumes:
      - mysql-data:/var/lib/mysql
    ports:
      - "3306:3306"
    networks:
      - zipkin-network

networks:
  zipkin-network:
    driver: bridge

volumes:
  mysql-data:

由于docker默认不包括docker-compose，可以使用pip3 install docker-compose来安装，安装成功后执行命令:

docker-compose up -d

启动后zipkin应用是不能正常工作的，这一点可以使用命令查看

docker logs <container_id>

原因在于zipkin 本身不会自动连接到 MySQL 并创建数据库表

注意zipkin需要的三张mysql表，需要手动创建，如果不想使用root账户，也需要手动创建，否则zipkin应用启动报错。建表语句可以在 github中查看

CREATE TABLE IF NOT EXISTS zipkin_spans (
  `trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
  `trace_id` BIGINT NOT NULL,
  `id` BIGINT NOT NULL,
  `name` VARCHAR(255) NOT NULL,
  `remote_service_name` VARCHAR(255),
  `parent_id` BIGINT,
  `debug` BIT(1),
  `start_ts` BIGINT COMMENT 'Span.timestamp(): epoch micros used for endTs query and to implement TTL',
  `duration` BIGINT COMMENT 'Span.duration(): micros used for minDuration and maxDuration query',
  PRIMARY KEY (`trace_id_high`, `trace_id`, `id`)
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;

ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTracesByIds';
ALTER TABLE zipkin_spans ADD INDEX(`name`) COMMENT 'for getTraces and getSpanNames';
ALTER TABLE zipkin_spans ADD INDEX(`remote_service_name`) COMMENT 'for getTraces and getRemoteServiceNames';
ALTER TABLE zipkin_spans ADD INDEX(`start_ts`) COMMENT 'for getTraces ordering and range';

CREATE TABLE IF NOT EXISTS zipkin_annotations (
  `trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
  `trace_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.trace_id',
  `span_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.id',
  `a_key` VARCHAR(255) NOT NULL COMMENT 'BinaryAnnotation.key or Annotation.value if type == -1',
  `a_value` BLOB COMMENT 'BinaryAnnotation.value(), which must be smaller than 64KB',
  `a_type` INT NOT NULL COMMENT 'BinaryAnnotation.type() or -1 if Annotation',
  `a_timestamp` BIGINT COMMENT 'Used to implement TTL; Annotation.timestamp or zipkin_spans.timestamp',
  `endpoint_ipv4` INT COMMENT 'Null when Binary/Annotation.endpoint is null',
  `endpoint_ipv6` BINARY(16) COMMENT 'Null when Binary/Annotation.endpoint is null, or no IPv6 address',
  `endpoint_port` SMALLINT COMMENT 'Null when Binary/Annotation.endpoint is null',
  `endpoint_service_name` VARCHAR(255) COMMENT 'Null when Binary/Annotation.endpoint is null'
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;

ALTER TABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`, `a_key`, `a_timestamp`) COMMENT 'Ignore insert on duplicate';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`) COMMENT 'for joining with zipkin_spans';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTraces/ByIds';
ALTER TABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT 'for getTraces and getServiceNames';
ALTER TABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT 'for getTraces and autocomplete values';
ALTER TABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT 'for getTraces and autocomplete values';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT 'for dependencies job';

CREATE TABLE IF NOT EXISTS zipkin_dependencies (
  `day` DATE NOT NULL,
  `parent` VARCHAR(255) NOT NULL,
  `child` VARCHAR(255) NOT NULL,
  `call_count` BIGINT,
  `error_count` BIGINT,
  PRIMARY KEY (`day`, `parent`, `child`)
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;

3 访问zipkin

此时使用公网ip或域名来访问 xxx.xxx.xxx.xxx:9411，发现连接失败，原因可能有两点

防火墙，打开9411端口
/etc/sysctl.conf里, 有一条配置

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

需要设置1，打开ip forward。

sudo sysctl -p /etc/sysctl.conf
或 
sudo sysctl -p
或
sudo sysctl -w net.ipv4.ip_forward=1

体验zipkin一

1 环境准备

2 安装zipkin

3 访问zipkin