https://github.com/pmalek/go_self_update_app

Self update app with simple REST API written in Go.
https://github.com/pmalek/go_self_update_app

Last synced: 6 days ago
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Self update app with simple REST API written in Go.

• Host: GitHub
• URL: https://github.com/pmalek/go_self_update_app
• Owner: pmalek
• License: gpl-3.0
• Created: 2020-04-28T20:32:40.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-05-29T17:45:44.000Z (over 4 years ago)
• Last Synced: 2024-10-29T10:52:26.536Z (about 2 months ago)
• Language: Go
• Homepage:
• Size: 4.73 MB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go_self_update_app

## How to build

Adjust the `Version` constant in the `main.go` to match the one in the filename

### *nix and Mac OS

Build with:

```

go build -o server_v

```

### Windows

Build with:

```

go build -o server_v.exe

```

## Test

### With Docker

Assuming that we have built `server_v1` and `server_v2` we could test it

via docker like so:

```

cd target/linux

docker run --rm -p 8080:8080 -v $(pwd):/app -w /app alpine ./server_v1

```

## Assumptions

* Server binaries are assumed to have the following format:

  * `server_v` for \*nix and Mac OS

  * `server_v.exe` for Windows

* Version number is embedded in the binary with `Version` constant in `main.go`

## Room for improvement

* Manage the version const and version embedded in filename better. Ideally hold

  version only in one place. For the filesystem update provider we could store

  version information in some metadata on the fs and embed the version information

  in the server binary somehow instead of relying on using filenames.

* Locking: there's some unnecessary locking done in the handler. This is OK for PoC

  but should be rethought when deployed.

* Custom javascript redirect (2s after clicking install new version) should add

  some more visual indication that the update is underway and shouldn't rely on

  constant time redirect but should rather periodically check if server is back up.