mirror of
https://github.com/cozystack/cozystack.git
synced 2026-10-30 00:27:04 +09:00
Aleksei Sviridkin
0cb44dc919
The inventory has to run next to kubelet: a DaemonSet reading the host's sysfs and kubelet's pod-resources socket, both mounted read-only. Connecting to the socket needs root, so the agent runs as root but with no capabilities and no privilege escalation. The manager's cached client would watch every pod in the cluster, so the agent uses a direct client and lists only its own node's pods. RBAC cannot name the caller's node, so the role is cluster-wide; it holds only the verbs the agent uses, and the DaemonSet selects the nodes node-feature-discovery marks as carrying an NVIDIA device, so the token does not sit on nodes with nothing to report. The image is in the root build list so that every build path stamps its reference; the committed tag is replaced by the first build. Assisted-by: LLM Signed-off-by: Aleksei Sviridkin <f@lex.la>
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
/*
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Copyright 2026 The Cozystack Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"testing"
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"time"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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gpuv1alpha1 "github.com/cozystack/cozystack/api/gpu/v1alpha1"
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)
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func TestSchemeRegistersWrittenKinds(t *testing.T) {
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for _, obj := range []runtime.Object{&gpuv1alpha1.GPUNode{}, &corev1.Node{}, &corev1.Pod{}} {
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if _, _, err := scheme.ObjectKinds(obj); err != nil {
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t.Errorf("%T: %v", obj, err)
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}
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}
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}
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func TestParseFlags(t *testing.T) {
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tests := []struct {
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name string
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args []string
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env string
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wantErr bool
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want options
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}{
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{
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name: "node name from the downward API",
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env: "gpu-node-1",
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want: options{nodeName: "gpu-node-1", sysfs: "/sys", socket: "/var/lib/kubelet/pod-resources/kubelet.sock", interval: 30 * time.Second, probeAddr: ":8081"},
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},
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{
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name: "flags override",
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args: []string{"--node-name=n2", "--sysfs=/host/sys", "--interval=1m"},
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want: options{nodeName: "n2", sysfs: "/host/sys", socket: "/var/lib/kubelet/pod-resources/kubelet.sock", interval: time.Minute, probeAddr: ":8081"},
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},
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{name: "no node name", wantErr: true},
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{name: "interval below a second", env: "n", args: []string{"--interval=100ms"}, wantErr: true},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Setenv("NODE_NAME", tt.env)
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got, err := parseFlags(tt.args)
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if (err != nil) != tt.wantErr {
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t.Fatalf("err = %v, wantErr %v", err, tt.wantErr)
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}
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if !tt.wantErr && got != tt.want {
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t.Errorf("options = %+v, want %+v", got, tt.want)
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}
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})
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}
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}
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