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This is a rewrite of machined. It addresses some of the limitations and complexity in the implementation. This introduces the idea of a controller. A controller is responsible for managing the runtime, the sequencer, and a new state type introduced in this PR. A few highlights are: - no more event bus - functional approach to tasks (no more types defined for each task) - the task function definition now offers a lot more context, like access to raw API requests, the current sequence, a logger, the new state interface, and the runtime interface. - no more panics to handle reboots - additional initialize and reboot sequences - graceful gRPC server shutdown on critical errors - config is now stored at install time to avoid having to download it at install time and at boot time - upgrades now use the local config instead of downloading it - the upgrade API's preserve option takes precedence over the config's install force option Additionally, this pulls various packes in under machined to make the code easier to navigate. Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
61 lines
1.9 KiB
Go
61 lines
1.9 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Package firecracker implements Provisioner via Firecracker VMs.
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package firecracker
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import (
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"context"
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"github.com/talos-systems/talos/internal/app/machined/pkg/runtime"
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"github.com/talos-systems/talos/internal/pkg/provision"
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"github.com/talos-systems/talos/pkg/config/types/v1alpha1"
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"github.com/talos-systems/talos/pkg/config/types/v1alpha1/generate"
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)
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const stateFileName = "state.yaml"
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type provisioner struct {
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}
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// NewProvisioner initializes docker provisioner.
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func NewProvisioner(ctx context.Context) (provision.Provisioner, error) {
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p := &provisioner{}
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return p, nil
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}
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// Close and release resources.
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func (p *provisioner) Close() error {
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return nil
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}
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// GenOptions provides a list of additional config generate options.
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func (p *provisioner) GenOptions(networkReq provision.NetworkRequest) []generate.GenOption {
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nameservers := make([]string, len(networkReq.Nameservers))
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for i := range nameservers {
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nameservers[i] = networkReq.Nameservers[i].String()
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}
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return []generate.GenOption{
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generate.WithInstallDisk("/dev/vda"),
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generate.WithNetworkConfig(&v1alpha1.NetworkConfig{
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NameServers: nameservers,
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NetworkInterfaces: []runtime.Device{
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{
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Interface: "eth0",
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CIDR: "169.254.128.128/32", // link-local IP just to trigger the static networkd config
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MTU: networkReq.MTU,
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},
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},
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}),
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}
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}
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// GetLoadBalancers returns internal/external loadbalancer endpoints.
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func (p *provisioner) GetLoadBalancers(networkReq provision.NetworkRequest) (internalEndpoint, externalEndpoint string) {
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// firecracker runs loadbalancer on the bridge, which is good for both internal & external access
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return networkReq.GatewayAddr.String(), networkReq.GatewayAddr.String()
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}
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