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Allow users to specify which Hetzner datacenter location to use for the temporary server during image upload. Defaults to fsn1 for backward compatibility. Available locations: fsn1, nbg1, hel1, ash, hil, sin Implements: #142
147 lines
4.6 KiB
Markdown
147 lines
4.6 KiB
Markdown
# hcloud-upload-image
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<p align="center">
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Quickly upload any raw disk images into your <a href="https://hetzner.com/cloud" target="_blank">Hetzner Cloud</a> projects!
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</p>
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<p align="center">
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<a href="https://apricote.github.io/hcloud-upload-image" target="_blank"><img src="https://img.shields.io/badge/Documentation-brightgreen?style=flat-square" alt="Badge: Documentation"/></a>
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<a href="https://github.com/apricote/hcloud-upload-image/releases" target="_blank"><img src="https://img.shields.io/github/v/release/apricote/hcloud-upload-image?sort=semver&display_name=release&style=flat-square&color=green" alt="Badge: Stable Release"/></a>
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<img src="https://img.shields.io/badge/License-MIT-green?style=flat-square" alt="Badge: License MIT"/>
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</p>
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## About
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The [Hetzner Cloud API](https://docs.hetzner.cloud/) does not support uploading disk images directly and only provides a limited set of default images. The only option for custom disk images is to take a snapshot of an existing server’s root disk. These snapshots can then be used to create new servers.
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To create a completely custom disk image, users need to follow these steps:
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1. Create a server with the correct server type
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2. Enable the rescue system for the server
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3. Boot the server
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4. Download the disk image from within the rescue system
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5. Write the disk image to the server’s root disk
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6. Shut down the server
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7. Take a snapshot of the server’s root disk
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8. Delete the server
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This is a frustratingly long process. Many users have automated it with [Packer](https://www.packer.io/) and [`packer-plugin-hcloud`](https://github.com/hetznercloud/packer-plugin-hcloud/), but Packer introduces additional complexity that can be difficult to manage.
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This repository provides a simple CLI tool and Go library to streamline the process.
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## Getting Started
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### CLI
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#### Binary
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We provide pre-built `deb`, `rpm` and `apk` packages. Alternatively we also provide the binaries directly.
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Check out the [GitHub release artifacts](https://github.com/apricote/hcloud-upload-image/releases/latest) for all of these files and archives.
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#### Arch Linux
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You can get [`hcloud-upload-image-bin`](https://aur.archlinux.org/packages/hcloud-upload-image-bin) from the AUR.
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Use your preferred wrapper to install:
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```shell
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yay -S hcloud-upload-image-bin
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```
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#### `go install`
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If you already have a recent Go toolchain installed, you can build & install the binary from source:
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```shell
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go install github.com/apricote/hcloud-upload-image@latest
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```
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#### Docker
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There is a docker image published at `ghcr.io/apricote/hcloud-upload-image`.
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```shell
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docker run --rm -e HCLOUD_TOKEN="<your token>" ghcr.io/apricote/hcloud-upload-image:latest <command>
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```
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#### Usage
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```shell
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export HCLOUD_TOKEN="<your token>"
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hcloud-upload-image upload \
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--image-url "https://example.com/disk-image-x86.raw.bz2" \
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--architecture x86 \
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--compression bz2 \
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--location nbg1 # Optional: defaults to fsn1
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```
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To learn more, you can use the embedded help output or check out the [CLI help pages in this repository](docs/reference/cli/hcloud-upload-image.md).:
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```shell
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hcloud-upload-image --help
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hcloud-upload-image upload --help
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hcloud-upload-image cleanup --help
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```
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### Go Library
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The functionality to upload images is also exposed in the library `hcloudimages`! Check out the [reference documentation](https://pkg.go.dev/github.com/apricote/hcloud-upload-image/hcloudimages) for more details.
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#### Install
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```shell
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go get github.com/apricote/hcloud-upload-image/hcloudimages
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```
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#### Usages
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```go
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package main
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import (
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"context"
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"fmt"
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"net/url"
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"github.com/hetznercloud/hcloud-go/v2/hcloud"
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"github.com/apricote/hcloud-upload-image/hcloudimages"
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)
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func main() {
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client := hcloudimages.NewClient(
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hcloud.NewClient(hcloud.WithToken("<your token>")),
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)
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imageURL, err := url.Parse("https://example.com/disk-image-x86.raw.bz2")
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if err != nil {
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panic(err)
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}
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image, err := client.Upload(context.TODO(), hcloudimages.UploadOptions{
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ImageURL: imageURL,
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ImageCompression: hcloudimages.CompressionBZ2,
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Architecture: hcloud.ArchitectureX86,
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Location: &hcloud.Location{Name: "nbg1"}, // Optional: defaults to fsn1
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})
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if err != nil {
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panic(err)
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}
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fmt.Printf("Uploaded Image: %d", image.ID)
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}
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```
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## Contributing
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If you have any questions, feedback or ideas, feel free to open an issue or pull request.
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## License
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This project is licensed under the MIT license, unless the file explicitly specifies another license.
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## Support Disclaimer
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This is not an official Hetzner Cloud product in any way and Hetzner Cloud does not provide support for this.
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