问题
I've a docker image wiremock.net-nano which accepts additional commandline parameters like --Port and --AdminUsername.
The normal docker commandline looks like:
docker run --rm -p 9091:80 sheyenrath/wiremock.net-nano --ReadStaticMappings true --AdminUsername x --AdminPassword y --RequestLogExpirationDuration 24
But how can I configure these parameters in Azure Service Fabric?
The ServiceManifest.xml file defines only the image name (<ImageName>sheyenrath/wiremock.net-nano</ImageName>) and port forwarding (<Endpoint Name="WireMock_ContainerTypeEndpoint" Port="9091" />).
回答1:
If I am not mistaken the <ContainerHostEntryPointType>/<Commands> in the element is what you are looking for.
As per ServiceManifest.xml schema:
Pass a comma delimited list of commands to the container.
The schema excerpt:
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.microsoft.com/2011/01/fabric" name="ContainerHostEntryPointType">
<xs:sequence>
<!--container image name-->
<xs:element name="ImageName" type="xs:string">
<xs:annotation>
<xs:documentation>The repo and image on https://hub.docker.com or Azure Container Registry.</xs:documentation>
</xs:annotation>
</xs:element>
<!--comma delimited list of commands for container-->
<xs:element name="Commands" type="xs:string" minOccurs="0" maxOccurs="1">
<xs:annotation>
<xs:documentation>Pass a comma delimited list of commands to the container.</xs:documentation>
</xs:annotation>
</xs:element>
<xs:element name="EntryPoint" type="xs:string" minOccurs="0" maxOccurs="1"/>
<xs:element name="FromSource" type="xs:string" minOccurs="0" maxOccurs="1"/>
</xs:sequence>
回答2:
As Oleg has explained correctly, you have to specify your parameters in the ServiceManifest.xml alongside the container image name in the <Commands> element.
What gave me troubles was correctly passing an argument with its value(s). What I found out is Service Fabric will wrap your commands into double quotes if a whitespace is present. In this case you have to replace the whitespaces with commas.
For example, I have a custom Dockerfile with the following entrypoint definition in exec format:
ENTRYPOINT ["redis-server.exe", "C:\\Redis\\redis.docker.conf"]
I wanted to pass --slaveof my-redis-master-instance 6379 as an argument to my docker container (where 6379 is the port of the master). The following service manifest would result in an error:
<EntryPoint>
<ContainerHost>
<ImageName>myrepository.azurecr.io/my.servicefabric.redis:3.</ImageName>
<Commands>--slaveof my-redis-master-instance 6379</Commands>
</ContainerHost>
</EntryPoint>
The reason is Service Fabric does wrap the command into quotes and then passes this to the docker image where it is interpreted as a single argument and causes an error.
Like already explained above, the solution is to replace the whitespaces with commas. Now Service Fabric passes the arguments separately.
<EntryPoint>
<ContainerHost>
<ImageName>myrepository.azurecr.io/my.servicefabric.redis:3.2.100</ImageName>
<Commands>--slaveof,my-redis-master-instance,6379</Commands>
</ContainerHost>
</EntryPoint>
For clarification, in my case I used Service Fabric for Windows with Containers based on Nanoserver 1803.
来源：https://stackoverflow.com/questions/52668237/how-to-specify-commandline-arguments-to-a-docker-container-in-azure-service-fabr