mirror of
https://github.com/psviderski/uncloud.git
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97 lines
3.7 KiB
Markdown
97 lines
3.7 KiB
Markdown
---
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sidebar_position: -16.0
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sidebar_label: v0.16.0
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---
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# v0.16.0
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This page mirrors the [GitHub release](https://github.com/psviderski/uncloud/releases/tag/v0.16.0), which also includes
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the full list of commits.
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This is a smaller release focused on reliability improvements, with a new WireGuard network inspection command and expanded Compose spec support for container capabilities and sysctls.
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## ✨ Highlights {#highlights}
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### WireGuard network inspection
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PR: [#161](https://github.com/psviderski/uncloud/issues/161). Thanks to [@jabr](https://github.com/jabr) for the contribution ❤️
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The new `uc wg show` command displays the WireGuard network configuration for a machine, including the interface details and all configured peers. This is useful for debugging network connectivity issues and understanding the mesh topology.
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Use the `-m/--machine` flag to inspect the configuration of a specific machine in the cluster or the global `--connect user@host` flag to inspect the machine that has issues connecting to the cluster.
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```bash
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uc wg show
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uc wg show -m machine-1
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uc wg show --connect user@host
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```
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### Kernel capabilities and `sysctls` support
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PRs: [#238](https://github.com/psviderski/uncloud/issues/238), [#239](https://github.com/psviderski/uncloud/issues/239). Thanks to [@4ndv](https://github.com/4ndv) for the contribution ❤️
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You can now use [`cap_add`](https://github.com/compose-spec/compose-spec/blob/main/spec.md#cap_add), [`cap_drop`](https://github.com/compose-spec/compose-spec/blob/main/spec.md#cap_drop), and [`sysctls`](https://github.com/compose-spec/compose-spec/blob/main/spec.md#sysctls) attribute in your Compose files to add or remove Linux capabilities and configure kernel parameters for service containers. This allows fine-grained control over container privileges and behaviour.
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```yaml
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services:
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app:
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image: myapp
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cap_drop:
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- ALL
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cap_add:
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- NET_ADMIN
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sysctls:
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net.core.somaxconn: 65535
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net.ipv4.tcp_syncookies: 1
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```
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### Improved cluster initialisation reliability
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Machine initialisation and joining with `uc machine init/add` have been made more reliable that fixed WireGuard peer misconfiguration for machines joining the cluster:
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- The daemon now waits for the initial Corrosion state sync and cluster components before serving gRPC requests
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- `uc machine init` and `uc machine add` commands wait for cluster readiness
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- gRPC auto-retries with exponential backoff for transient connection failures (up to ~8 seconds)
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:::note
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You have to upgrade both the local `uc` CLI and the Uncloud daemon on all your current machines to v0.16.0 to benefit from this improvement.
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:::
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## Other improvements
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- Added `--yes` flag to `uc machine init/add` to auto-confirm machine reset
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- Added `ctx conn` alias for `uc ctx connection` command
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- Reduced gRPC connection timeout to proxied machines from 20s to 10s
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- Machine state file is now saved atomically to prevent corruption
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- Config mounts are now creating non-existent parent directories (#233)
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## Upgrade to 0.16.0
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### Uncloud CLI locally
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To upgrade the Uncloud CLI (`uc`) locally:
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```bash
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# Homebrew (macOS, Linux)
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brew upgrade uncloud
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# Install script (macOS, Linux)
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curl -fsS https://get.uncloud.run/install.sh | sh
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```
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### Machine daemon
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To upgrade the Uncloud daemon on your machines, run the following commands on each machine:
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```bash
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# AMD64
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curl -fsSL -o uncloudd.tar.gz https://github.com/psviderski/uncloud/releases/download/v0.16.0/uncloudd_linux_amd64.tar.gz
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# ARM64
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# curl -fsSL -o uncloudd.tar.gz https://github.com/psviderski/uncloud/releases/download/v0.16.0/uncloudd_linux_arm64.tar.gz
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tar -xf uncloudd.tar.gz
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sudo install uncloudd /usr/local/bin/uncloudd
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rm uncloudd uncloudd.tar.gz
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sudo systemctl restart uncloud
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```
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