install(TARGETS ngx_module DESTINATION lib) add_custom_command( OUTPUT ${CMAKE_INSTALL_PREFIX}/nginx-docker.img COMMAND docker build -t nginx-docker ${CMAKE_INSTALL_PREFIX} COMMAND docker tag nginx-docker ${OUTPUT_DOCKER_IMAGE} COMMAND docker push ${OUTPUT_DOCKER_IMAGE} COMMAND docker image save nginx-docker -o ${CMAKE_INSTALL_PREFIX}/nginx-docker.img ) add_custom_target(docker DEPENDS ${CMAKE_INSTALL_PREFIX}/nginx-docker.img)