问题
创建srvice的参数的时候，如果设置了network参数（接口POST：service/create）
[{ "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 3, "Command": [], "ContainerEnv": [], "PortConfig": [ { "Protocol": "tcp", "TargetPort": 80, "PublishedPort": 8081 } ], "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null } ], "UpdateConfig": { "Parallelism": 1, "Delay": 10000000000, "FailureAction": "", "Monitor": null, "MaxFailureRatio": 0, "Order": null }, "RollbackConfig": { "Parallelism": null, "Delay": null, "FailureAction": null, "Monitor": null, "MaxFailureRatio": 0, "Order": "" }, "RestartPolicy": { "Condition": null, "Delay": null, "MaxAttempts": null }, "WarehouseUrl": null, "WarehousePwd": null, "WarehouseUserName": null, "Mount": [] }]
而更新的时候，没有传network参数，会报错：error while removing network:…
更新service参数如下:（接口PUT：/service/update）
{ "ServiceId": "itnl2vrkixib9hlgtmsuj4awu", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2 }
同时，因为端口等其他参数也没传，造成更新之后，端口啥的都消失了，截图如下：
1. 创建service的时候
2. 更新service之后
分析错误原因
先不考虑端口等其他问题，先分析造成network错误的原因，上面是创建service的时候设置了network参数，下面对应几个更新service的时候传不同参数的结果
1. 更新的时候 network不变，相当于不更改network，更改副本数
（1）只传部分参数，报错
{ // 更新的时候传的参数 "ServiceId": "9t2jucsc3t1i0t9bx2n7csmjf", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null } ] }
（2）、全量传参，不报错
{ "ServiceId": "i8cdkcbb4o9ly0nczqlgt5l3l", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Command": [], "ContainerEnv": [], "PortConfig": [ { "Protocol": "tcp", "TargetPort": 80, "PublishedPort": 8082 } ], "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null } ], "UpdateConfig": { "Parallelism": 1, "Delay": 10000000000, "FailureAction": "", "Monitor": null, "MaxFailureRatio": 0, "Order": null }, "RollbackConfig": { "Parallelism": null, "Delay": 10000000000, "FailureAction": null, "Monitor": null, "MaxFailureRatio": 0, "Order": "" }, "RestartPolicy": { "Condition": null, "Delay": null, "MaxAttempts": null }, "WarehouseUrl": null, "WarehousePwd": null, "WarehouseUserName": null, "Mount": [] }
2. 更新的时候，不传network参数，相当于移除network
（1）部分传参，报错
{ "ServiceId": "tx8882z81lh834uenw4tcgt48", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2 }
（2）、全量传参，不报错（参数太多，博客省略部分，实际传参的时候有）
{ "ServiceId": "uvknv24zb8q2iouoz9lv5v13n", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Command": [], "ContainerEnv": [], "PortConfig": [ { "Protocol": "tcp", "TargetPort": 80, "PublishedPort": 8082 } ], ....省略 }
3. 更新的时候，传network，但是是添加network
（1）部分传参，报错
{ "ServiceId": "aqp2b7cmrh5egjezenuf0vx6r", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null }, { "Target": "my-net", "Aliases": null, "DriverOpts": null } ] }
（2）全量传参，不报错
{ "ServiceId": "bn0k9vxspi98m8qz9ceh14jc1", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Command": [], "ContainerEnv": [], "PortConfig": [ { "Protocol": "tcp", "TargetPort": 80, "PublishedPort": 8082 } ], "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null }, { "Target": "my-net", "Aliases": null, "DriverOpts": null } ], ...省略 }
4. 更新的时候，传network，但是是移除一个network
（1）部分传参，报错
{ "ServiceId": "5k0nt8l45nbycxpzb0o5gzy38", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null } ] }
（2）全量传参，不报错
{ "ServiceId": "21ixmxc0xvh4s0t2jr1ke1ofl", "Image": "nginx", "ImageVersion": "1.17", "ServiceName": "test-chow", "Replicas": 2, "Command": [], "ContainerEnv": [], "PortConfig": [ { "Protocol": "tcp", "TargetPort": 80, "PublishedPort": 8082 } ], "Networks": [ { "Target": "chow", "Aliases": null, "DriverOpts": null } ], ...省略 }
总结以上发现，只要是只传部分参数，就会报错，但我又不能每次更新都让调用接口的人把所有的参数传过来，怎么办呢？