kubespray/contrib/offline/README.md

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# Offline deployment
## manage-offline-container-images.sh
Container image collecting script for offline deployment
This script has two features:
(1) Get container images from an environment which is deployed online.
(2) Deploy local container registry and register the container images to the registry.
Step(1) should be done online site as a preparation, then we bring the gotten images
to the target offline environment.
Then we will run step(2) for registering the images to local registry.
Step(1) can be operated with:
```shell
manage-offline-container-images.sh create
```
Step(2) can be operated with:
```shell
manage-offline-container-images.sh register
```
## generate_list.sh
This script generates the list of downloaded files and the list of container images by `roles/download/defaults/main.yml` file.
Run this script will execute `generate_list.yml` playbook in kubespray root directory and generate four files,
all downloaded files url in files.list, all container images in images.list, jinja2 templates in *.template.
```shell
./generate_list.sh
tree temp
temp
├── files.list
├── files.list.template
├── images.list
└── images.list.template
0 directories, 5 files
```
In some cases you may want to update some component version, you can declare version variables in ansible inventory file or group_vars,
then run `./generate_list.sh -i [inventory_file]` to update file.list and images.list.