如何解决这个模棱两可的Azure错误?

时间:2018-09-03 07:08:18

标签: bash azure-virtual-machine azure-cli runcommand

我正在使用运行命令通过RHEL 7 VM中的Azure CLI bash脚本执行bash脚本。

当运行命令的代码段出现错误:

   az vm run-command invoke --name ${THIS_VM_NAME} \
            --command-id RunShellScript \
            --resource-group ${RSC_GRP_NAME} \
            --query "output[].message | join('\n\n', @)" \
            --scripts "
cat > /etc/init.d/parity <<'EOF'
${INIT_D_PARITY}
exit 0
EOF

chmod +x /etc/init.d/parity

service parity restart

sleep 5

ls -la /var/log/parity.err
ls -la /var/log/parity.log
ls -la /var/log/parity.node.log

echo '_____________________________________________'
echo 'Parity Error Log:'
tail -n 5 /var/log/parity.err
echo '_____________________________________________'

ls -la /usr/libs/libssl*

parity -v

cat /var/log/parity.node.log | grep -oEi '(enode.*@)' | tail -n 1 | sed 's/enode:\/\///' | sed 's/@.*//' > /etc/parity/enode.pub

ls -la /etc/init.d/parity
ls -la /etc/parity/enode.pub

cat /etc/parity/enode.pub
echo 'Parity is Up an running \o/'
" 

这是错误消息:

  

在函数join()中,值的无效类型:无,应为以下之一:   ['array-string'],收到:“ null”回溯(最近一次通话最近):

1 个答案:

答案 0 :(得分:0)

join()是JMESPath的功能,它是JSON的查询语言。这是一个简单的示例:

数组:

{
  "locations": [
    {"name": "Seattle", "state": "WA"},
    {"name": "New York", "state": "NY"},
    {"name": "Bellevue", "state": "WA"},
    {"name": "Olympia", "state": "WA"}
  ]
}

查询代码:

locations[?state == 'WA'].name | sort(@) | {WashingtonCities: join(', ', @)}

结果:

{
  "WashingtonCities": "Bellevue, Olympia, Seattle"
}

对于您的问题,您可以从此link中获取详细信息。我认为如果输出是数组,则函数join()会很好地工作。如果没有,将出现与您相同的错误。