4-Docker命令之docker build

1.docker build介绍

docker build命令是用来使用Dockerfile文件创建镜像

2.docker build用法

docker build [参数] PATH | URL | -

[root@centos79 ~]# docker build --helpUsage:  docker buildx build [OPTIONS] PATH | URL | -Start a buildAliases:docker buildx build, docker buildx bOptions:--add-host strings              Add a custom host-to-IP mapping (format: "host:ip")--allow strings                 Allow extra privileged entitlement (e.g., "network.host", "security.insecure")--attest stringArray            Attestation parameters (format: "type=sbom,generator=image")--build-arg stringArray         Set build-time variables--build-context stringArray     Additional build contexts (e.g., name=path)--builder string                Override the configured builder instance (default "default")--cache-from stringArray        External cache sources (e.g., "user