Instance host configuration

A system, comprising:

• a plurality of instance hosts configurable to implement resource instances of a network-accessible service;
• and
• one or more control servers configured to manage configuration of resource instances at the plurality of instance hosts;
• wherein a selected control server of the one or more control servers is configured to transmit, in response to an instance configuration request from a client, a sequence of one or more commands to a selected instance host of the plurality of instance hosts;
• wherein the selected instance host is configured to, in response to receiving the sequence of one or more commands, instantiate a remote command executor;
• wherein the remote command executor is configured to initiate one or more configuration operations corresponding to the sequence of one or more commands;
• and
• wherein the selected control server is configured to provide a response to the instance configuration request, based at least in part on results of the one or more configuration operations, to the client.

A non-transitory computer-accessible storage medium storing program instructions that when executed on one or more processors implement a control server of a provider network comprising a plurality of instance hosts configurable to host resource instances of one or more network-accessible services, wherein the control server is configured to:

• in response to an instance configuration request from a client, wherein the instance configuration request is directed to a particular service of the one or more network-accessible services,
• transmit, to a selected instance host of the plurality of instance hosts, one or more commands;
• receive, from the selected instance host, results of one or more configuration operations initiated at the selected instance host by a remote command executor instantiated at the selected instance host in response to the one or more commands;
• provide a response to the instance configuration request, based at least in part on results of the one or more configuration operations, to the client.

A non-transitory computer-accessible storage medium storing program instructions that when executed on one or more processors:

• receive an instance configuration command from a control server of a provider network, wherein the control server is configured to manage remote configuration of resource instances to provide one or more network-accessible services;
• instantiate a remote command executor in response to the instance configuration command, wherein the remote command executor is configured to initiate one or more configuration operations in accordance with the command;
• and
• provide results of the one or more configuration operations to the control server.