Question

ERROR: yaml.parser.ParserError: while parsing a block mapping
  in "././tmp/statelesscs_compose.yml", line 1, column 1
expected <block end>, but found ':'
  in "././tmp/statelesscs_compose.yml", line 4, column 1
docbase installation completed

执行下面的yml file.can时，请建议我如何解决这个问题。

使用示例：

docker-compose -f my.yml up

还让我知道是否有任何格式化yml文件的工具，以便我可以轻松修改

my.yml：

version: '2'
services:
  ubuntupgcsstateless:
    image: ubuntupgstatelesscsimage
    environment:
      - EXTERNAL_IP=10.31.86.164
      - EXTERNALDB_IP=10.31.86.165
      - EXTERNALDB_ADMIN_USER=postgres
      - EXTERNALDB_ADMIN_PASSWORD=password
      - DOCBASENAME=DocbaseName
    hostname:
      "ubuntupgcsstateless"
    container_name:
      "ubuntupgcsstateless"
    ports:
     - "1689:1689"
     - "1690:1690"
     - "50000:50000"
     - "50001:50001"
     - "9080:9080"
     - "9082:9082"
    volumes:
     - DocbaseName_data:/home/dmadmin/dctm/data
     - DocbaseName_dba:/home/dmadmin/dctm/dba
     - DocbaseName_share:/home/dmadmin/dctm/share
     - DocbaseName_dfc:/home/dmadmin/dctm/config
     - DocbaseName_xhive_storage:/home/dmadmin/dctm/xhive_storage
     - DocbaseName_mdserver:/home/dmadmin/dctm/wildfly9.0.1/server/DctmServer_MethodServer
    privileged: true
volumes:
 DocbaseName_data:
 DocbaseName_dba:
 DocbaseName_share:
 DocbaseName_dfc:
 DocbaseName_xhive_storage:
 DocbaseName_mdserver:

Answer 1

如果空格确实存在空格，则您提供的YAML不会生成错误。因此，请检查您的YAML是否有标签或其他隐藏字符。

import ruamel.yaml

yaml_str = """\
version: '2'
services:
  ubuntupgcsstateless:
    image: ubuntupgstatelesscsimage
    environment:
      - EXTERNAL_IP=10.31.86.164
      - EXTERNALDB_IP=10.31.86.165
      - EXTERNALDB_ADMIN_USER=postgres
      - EXTERNALDB_ADMIN_PASSWORD=password
      - DOCBASENAME=DocbaseName
    hostname:
      "ubuntupgcsstateless"
    container_name:
      "ubuntupgcsstateless"
    ports:
     - "1689:1689"
     - "1690:1690"
     - "50000:50000"
     - "50001:50001"
     - "9080:9080"
     - "9082:9082"
    volumes:
     - DocbaseName_data:/home/dmadmin/dctm/data
     - DocbaseName_dba:/home/dmadmin/dctm/dba
     - DocbaseName_share:/home/dmadmin/dctm/share
     - DocbaseName_dfc:/home/dmadmin/dctm/config
     - DocbaseName_xhive_storage:/home/dmadmin/dctm/xhive_storage
     - DocbaseName_mdserver:/home/dmadmin/dctm/wildfly9.0.1/server/DctmServer_MethodServer
    privileged: true
volumes:
 DocbaseName_data:
 DocbaseName_dba:
 DocbaseName_share:
 DocbaseName_dfc:
 DocbaseName_xhive_storage:
 DocbaseName_mdserver:
"""

data = ruamel.yaml.round_trip_load(yaml_str)
print(ruamel.yaml.round_trip_dump(data))

虽然YAML规范不要求，但是你应该在映射中使用相同数量的空格（使用1和2个空格，我建议使用2个）以及序列中的元素（同样使用1和2个空格，我建议对映射值的序列使用0。

使用Dockerfile和docker-compose

尝试以下操作

version: '2'
services:
  ubuntupgcsstateless:
    image: ubuntupgstatelesscsimage
    environment:
    - EXTERNAL_IP=10.31.86.164
    - EXTERNALDB_IP=10.31.86.165
    - EXTERNALDB_ADMIN_USER=postgres
    - EXTERNALDB_ADMIN_PASSWORD=password
    - DOCBASENAME=DocbaseName
    hostname:
      "ubuntupgcsstateless"
    container_name:
      "ubuntupgcsstateless"
    ports:
    - "1689:1689"
    - "1690:1690"
    - "50000:50000"
    - "50001:50001"
    - "9080:9080"
    - "9082:9082"
    volumes:
    - DocbaseName_data:/home/dmadmin/dctm/data
    - DocbaseName_dba:/home/dmadmin/dctm/dba
    - DocbaseName_share:/home/dmadmin/dctm/share
    - DocbaseName_dfc:/home/dmadmin/dctm/config
    - DocbaseName_xhive_storage:/home/dmadmin/dctm/xhive_storage
    - DocbaseName_mdserver:/home/dmadmin/dctm/wildfly9.0.1/server/DctmServer_MethodServer
    privileged: true
volumes:
  DocbaseName_data:
  DocbaseName_dba:
  DocbaseName_share:
  DocbaseName_dfc:
  DocbaseName_xhive_storage:
  DocbaseName_mdserver:

Answer 2

方法1：

您应在notepad ++中打开docker-compose.yml文件并启用“显示所有字符”选项，以便您可以查看并纠正空格，制表符缩进问题

但是如果这对您来说看起来很艰巨

方法2：

使用在线 YAML验证程序工具，例如https://codebeautify.org/yaml-validator

使用此验证工具后，我可以找到与“ docker-compose.yml”文件有关的问题，我有一些空格，制表符缩进问题

yaml.parser.ParserError：解析块映射时

2 个答案: