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check_nodes_cri.go
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check_nodes_cri.go
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// Copyright 2023 Flant JSC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// this hook figure out minimal ingress controller version at the beginning and on IngressNginxController creation
// this version is used on requirements check on Deckhouse update
// Deckhouse would not update minor version before pod is ready, so this hook will execute at least once (on sync)
package hooks
import (
"regexp"
"github.com/flant/addon-operator/pkg/module_manager/go_hook"
"github.com/flant/addon-operator/sdk"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/utils/pointer"
"github.com/deckhouse/deckhouse/go_lib/dependency/requirements"
)
const (
hasNodesOtherThanContainerd = "nodeManager:hasNodesOtherThanContainerd"
containerUnknownVersion = "unknownVersion"
snapName = "check_nodes_cri"
)
var isContainerdRegexp = regexp.MustCompile(`^containerd.*?`)
// TODO: Remove this hook after 1.47 release
var _ = sdk.RegisterFunc(&go_hook.HookConfig{
Queue: "/modules/node-manager",
Kubernetes: []go_hook.KubernetesConfig{
{
Name: snapName,
WaitForSynchronization: pointer.Bool(false),
ExecuteHookOnSynchronization: pointer.Bool(true),
ExecuteHookOnEvents: pointer.Bool(true),
ApiVersion: "v1",
Kind: "Node",
LabelSelector: &v1.LabelSelector{
MatchExpressions: []v1.LabelSelectorRequirement{
{
Key: "node.deckhouse.io/group",
Operator: v1.LabelSelectorOpExists,
},
},
},
FilterFunc: applyNodesCRIVersionFilter,
},
},
}, discoverNodesCRIVersion)
func applyNodesCRIVersionFilter(obj *unstructured.Unstructured) (go_hook.FilterResult, error) {
containerVersion, ok, err := unstructured.NestedString(obj.Object, "status", "nodeInfo", "containerRuntimeVersion")
if !ok {
return containerUnknownVersion, err
}
return containerVersion, err
}
func discoverNodesCRIVersion(input *go_hook.HookInput) error {
snap := input.Snapshots[snapName]
if len(snap) == 0 {
return nil
}
for _, s := range snap {
if !isContainerdRegexp.MatchString(s.(string)) {
requirements.SaveValue(hasNodesOtherThanContainerd, true)
return nil
}
}
requirements.SaveValue(hasNodesOtherThanContainerd, false)
return nil
}