<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def build_docker_sshd(ctx):
 """ build docker image sshd-mssh-copy-id """

    dinfo = DOCKER_SSHD_IMG
    ctx.run('docker rmi -f {0}'.format(dinfo['name']), warn=True)
    ctx.run('docker build -t {0} {1}'.format(dinfo['name'], dinfo['path']))