云Foundry yaml解析错误

Question

当我试图为memcached服务代理推送yaml文件时，cf push上出现了一个错误：

#cf push
FAILED
Error reading manifest file:
yaml: [] mapping values are not allowed in this context at line 2, column 7
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:95 (0x2c0d87)
/usr/local/go/src/pkg/runtime/panic.c:248 (0x16276)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:144 (0x2c1609)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:161 (0x2c17e5)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:471 (0x2c3cd4)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:196 (0x2c1c6e)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:394 (0x2c336d)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:193 (0x2c1d38)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:171 (0x2c199e)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/cloudfoundry-incubator/candiedyaml/decode.go:137 (0x2c146d)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/manifest/manifest_disk_repository.go:82 (0xb13ef)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/manifest/manifest_disk_repository.go:50 (0xb0f72)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/manifest/manifest_disk_repository.go:33 (0xb0e13)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/manifest/manifest.go:1 (0xb300e)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/commands/application/push.go:377 (0x23e2c3)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/commands/application/push.go:356 (0x23e062)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/commands/application/push.go:120 (0x23ada2)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/command_runner/runner.go:50 (0xa70a9)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/command_runner/runner.go:1 (0xa73d4)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/tmp/cli_gopath/src/github.com/cloudfoundry/cli/cf/app/app.go:76 (0x8ecce)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/codegangsta/cli/command.go:101 (0xcb140)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/Godeps/_workspace/src/github.com/codegangsta/cli/app.go:125 (0xc9654)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/main/main.go:154 (0x3729)
/Users/pivotal/go-agent/pipelines/Mac-OSX-Testing/src/github.com/cloudfoundry/cli/main/main.go:91 (0x2eb9)
/usr/local/go/src/pkg/runtime/proc.c:220 (0x1804f)
/usr/local/go/src/pkg/runtime/proc.c:1394 (0x1a580)

所以很明显我的yaml文件有问题。但我不知道是什么。我现在拥有的是：

domain: cloudeast.mycompany.com
  nats:  secret
    machines:
      - 10.10.100.10
    password: secret
    port: 4222
    user: nats

  networks:
    apps: default
    management: default

  memcache_broker:
    broker_password: secret
    memcache:
      vip: 10.100.100.100:11211
      servers:
      - 10.100.100.101:11211
      - 10.100.100.102:11211
    plans:
      small:
        name: small
        description: A small cache with no redundency
        free: true

  memcache_hazelcast:
    heap_size: 512M
    host:
      src_api: https://memcache-hazelcast.cf-deployment.com
      password: secret
    memcache:
      secret_key: secret
    hazelcast:
      max_cache_size: 268435456
      machines:
        zone1:
        - 10.100.100.101
        zone2:
        - 10.100.100.102
    plans:
      small:
        backup: 0
        async_backup: 1
        eviction_policy: LRU
        max_idle_seconds: 86400
        max_size_used_heap: 100
      medium:
        backup: 0
        async_backup: 1
        eviction_policy: LRU
        max_idle_seconds: 86400
        max_size_used_heap: 200

我能得到一些帮助吗?为什么这个yaml文件解析不正确？

Answer 1

在第一行中，您有一个标量(domain)，然后是冒号(:)，然后是标量(cloudeast.mycompany.com)，这意味着在顶部、不缩进的级别开始映射，domain是关键标量，cloudeast.mycompany.com是值标量。

在下一行中，您应该再次获得一个键标量，并且它必须缩进与前一行相同的级别(或者您使用...完成顶级映射，或者启动一个新文档(---)。您启动一个缩进值，它是一个映射，解析器不知道您想要用它做什么。

一个人只能试着猜测你想做什么。如果cloudeast.mycompany.com是域的名称，则应该使其成为一个新的缩进标量值(带有键name)，那么键machines也会出现相同的缩进错误。下面是3个键，之后文件就可以了：

domain: 
  name: cloudeast.mycompany.com   # scalar key "name" added
  nats:  secret
  machines:                       # this scalar key and next 3  dedented
  - 10.10.100.10
  password: secret
  port: 4222
  user: nats

  # from here everything as it was
  networks:
    apps: default
    management: default

  memcache_broker:
    broker_password: secret
    memcache:
      vip: 10.100.100.100:11211
      servers:
      - 10.100.100.101:11211
      - 10.100.100.102:11211
    plans:
      small:
        name: small
        description: A small cache with no redundency
        free: true

  memcache_hazelcast:
    heap_size: 512M
    host:
      src_api: https://memcache-hazelcast.cf-deployment.com
      password: secret
    memcache:
      secret_key: secret
    hazelcast:
      max_cache_size: 268435456
      machines:
        zone1:
        - 10.100.100.101
        zone2:
        - 10.100.100.102
    plans:
      small:
        backup: 0
        async_backup: 1
        eviction_policy: LRU
        max_idle_seconds: 86400
        max_size_used_heap: 100
      medium:
        backup: 0
        async_backup: 1
        eviction_policy: LRU
        max_idle_seconds: 86400
        max_size_used_heap: 200

当然，您还省略了cloudeaset.mycompany.com值。在这两种情况下，YAML文件的顶层都是一个带有单个键标量：domain的映射。该键的值同样是一个具有nats、networks、memcache_broker等键的映射。