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https://github.com/siderolabs/talos.git
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2bf8540855
This is initial PR to push the initial code, it has several known problems which are going to be addressed in follow-up PRs: 1. there's no "cluster destroy", so the only way to stop the VMs is to `pkill firecracker` 2. provisioner creates state in `/tmp` and never deletes it, that is required to keep cluster running when `osctl cluster create` finishes 3. doesn't run any controller process around firecracker to support reboots/CNI cleanup (vethxyz interfaces are lingering on the host as they're never cleaned up) The plan is to create some structure in `~/.talos` to manage cluster state, e.g. `~/.talos/clusters/<name>` which will contain all the required files (disk images, file sockets, VM logs, etc.). This directory structure will also work as a way to detect running clusters and clean them up. For point number 3, `osctl cluster create` is going to exec lightweight process to control the firecracker VM process and to simulate VM reboots if firecracker finishes cleanly (when VM reboots). Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
107 lines
2.4 KiB
Go
107 lines
2.4 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 provision
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import (
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"fmt"
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"net"
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"github.com/talos-systems/talos/internal/pkg/runtime"
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"github.com/talos-systems/talos/pkg/config/machine"
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)
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// ClusterRequest is the root object describing cluster to be provisioned.
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type ClusterRequest struct {
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Name string
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Network NetworkRequest
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Nodes NodeRequests
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Image string
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KernelPath string
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InitramfsPath string
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KubernetesVersion string
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}
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// CNIConfig describes CNI part of NetworkRequest.
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type CNIConfig struct {
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BinPath []string
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ConfDir string
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CacheDir string
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}
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// NetworkRequest describe cluster network.
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type NetworkRequest struct {
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Name string
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CIDR net.IPNet
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GatewayAddr net.IP
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MTU int
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// CNI-specific parameters.
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CNI CNIConfig
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}
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// NodeRequests is a list of NodeRequest.
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type NodeRequests []NodeRequest
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// FindInitNode looks up init node, it returns an error if no init node is present or if it's duplicate.
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func (reqs NodeRequests) FindInitNode() (req NodeRequest, err error) {
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found := false
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for i := range reqs {
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if reqs[i].Config.Machine().Type() == machine.TypeInit {
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if found {
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err = fmt.Errorf("duplicate init node in requests")
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return
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}
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req = reqs[i]
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found = true
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}
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}
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if !found {
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err = fmt.Errorf("no init node found in requests")
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}
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return
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}
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// MasterNodes returns subset of nodes which are Init/ControlPlane type.
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func (reqs NodeRequests) MasterNodes() (nodes []NodeRequest) {
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for i := range reqs {
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if reqs[i].Config.Machine().Type() == machine.TypeInit || reqs[i].Config.Machine().Type() == machine.TypeControlPlane {
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nodes = append(nodes, reqs[i])
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}
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}
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return
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}
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// WorkerNodes returns subset of nodes which are Init/ControlPlane type.
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func (reqs NodeRequests) WorkerNodes() (nodes []NodeRequest) {
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for i := range reqs {
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if reqs[i].Config.Machine().Type() == machine.TypeWorker {
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nodes = append(nodes, reqs[i])
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}
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}
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return
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}
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// NodeRequest describes a request for a node.
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type NodeRequest struct {
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Name string
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IP net.IP
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Config runtime.Configurator
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// Share of CPUs, in 1e-9 fractions
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NanoCPUs int64
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// Memory limit in bytes
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Memory int64
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// Disk (volume) size in bytes, if applicable
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DiskSize int64
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}
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