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docs: update what's new for Talos 0.11

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This is just copy-paste from our changelog.

Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
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Andrey Smirnov 2021-07-08 23:41:47 +03:00 committed by talos-bot
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website/content/docs/v0.11/Introduction/what-is-new.md
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--- ---
title: What's New in Talos 0.10 title: What's New in Talos 0.11
weight: 5 weight: 5
--- ---
## Disaster Recovery ## Networking Configuration
Talos now supports `etcd` [snapshots and recovery](../../guides/disaster-recovery/) from the snapshotted state. Talos networking configuration was [completely rewritten](../../learn-more/networking-resources/) to be based on controllers
Periodic snapshots of `etcd` data can be taken with `talosctl etcd snapshot` command, and in case of catastrophic control plane and resources.
failure `etcd` contents can be recovered from the latest snapshot with `talosctl bootstrap --recover-from=` command. There are no changes to the machine configuration, but any update to `.machine.network` can now
be applied in immediate mode (without a reboot).
Talos should be setting up network configuration much faster on boot now, not blocking on DHCP for unconfigured
interfaces and skipping the reset network step.
## Time Synchronization ## Talos API RBAC
The `timed` service was replaced with a new time sync controller without any machine configuration changes. Limited [RBAC support](../../guides/rbac/) in Talos API is now enabled by default for Talos 0.11.
There should be no user-visible changes in the way new time synchronization process works, logs are now Default `talosconfig` has `os:admin` role embedded in the certificate so that all the APIs are available.
available via `talosctl logs controller-runtime`. Certificates with reduced set of roles can be created with `talosctl config new` command.
Talos now prefers last successful time server (by IP address) on each sync attempt, which improves sync accuracy.
## Single Board Computers When upgrading from Talos 0.10, RBAC is not enabled by default.
Before enabling RBAC, generate `talosconfig` with `os:admin` role first to make sure that administrator still has access to the cluster when RBAC is enabled.
Talos added support for the [Radxa Rock PI 4c](../../single-board-computers/rockpi_4/) board. List of available roles:
`u-boot` version was updated to fix the boot and USB issues on Raspberry Pi 4 8GiB version.
## Optmizations * `os:admin` role enables every Talos API
* `os:reader` role limits access to read-only APIs which do not return sensitive data
* `os:etcd:backup` role only allows `talosctl etcd snapshot` API call (for etcd backup automation)
Multiple optimizations were applied to reduce Talos `initramfs` size and memory footprint. ## Default to Bootstrap workflow
As a result, we see a reduction of memory usage of around 100 MiB for the core Talos components which leaves more resources available for you workloads.
## Install Disk Selector The `init.yaml` is no longer an output of `talosctl gen config`.
We now encourage using the bootstrap API, instead of `init` node types, as we
intend on deprecating this machine type in the future.
The `init.yaml` and `controlplane.yaml` machine configs are identical with the
exception of the machine type.
Users can use a modified `controlplane.yaml` with the machine type set to
`init` if they would like to avoid using the bootstrap API.
Install section of the machine config now has `diskSelector` [field](../../reference/configuration/#installconfig) that allows querying install disk using the list of qualifiers: ## Component Updates
```yaml * containerd was updated to 1.5.2
... * Linux kernel was updated to 5.10.45
install: * Kubernetes was updated to 1.21.2
diskSelector: * etcd was updated to 3.4.16
size: >= 500GB
model: WDC*
...
```
`talosctl -n <IP> disks -i` can be used to check allowed disk qualifiers when the node is running in the maintenance mode. ## CoreDNS
## Inline Kubernetes Manifests Added the flag `cluster.coreDNS.disabled` to coreDNS deployment during the cluster bootstrap.
Kubernetes manifests can now be submitted in the machine configuration using the `cluster.inlineManifests` [field](../../reference/configuration/#clusterconfig), ## Legacy BIOS Support
which works same way as `cluster.extraManifests` field, but manifest contents are passed inline in the machine configuration.
## Updated Components Added an option to the `machine.install` section of the machine config that can enable marking MBR partition bootable
for the machines that have legacy BIOS which does not support GPT partitioning scheme.
Linux: 5.10.19 -> 5.10.29 ## Multi-arch Installer
Kubernetes: 1.20.5 -> 1.21.0 Talos installer image (for any arch) now contains artifacts for both `amd64` and `arm64` architecture.
This means that e.g. images for arm64 SBCs can be generated on amd64 host.
Go: 1.15 -> 1.16