7.11. 通过自定义 Dockerfile 修改容器镜像

步骤

1. 以下示例在 nova-compute 镜像上运行自定义 Dockerfile：

   ContainerImagePrepare:
   - push_destination: true
     ...
     includes:
     - nova-compute
     modify_role: tripleo-modify-image
     modify_append_tag: "-hotfix"
     modify_vars:
       tasks_from: modify_image.yml
       modify_dir_path: /home/stack/nova-custom
     ...

2. 以下示例显示了 /home/stack/nova-custom/Dockerfile 文件。运行任何 USER 根指令后，必须切换回原始镜像默认用户：

   FROM registry.redhat.io/rhosp-rhel8/openstack-nova-compute:latest
   
   USER "root"
   
   COPY customize.sh /tmp/
   RUN /tmp/customize.sh
   
   USER "nova"