opsx
e006fc1a0e
=== 一、astralx 只采集到 2 个 app（核心问题）===
实证：用户的 Deployment Pod 模板只有 k8s.kuboard.cn/name 标签，
没有 app / app.kubernetes.io/name。原模板的 app 只从这两个标签取，
所以 115 个服务的 app 全是空值，Loki 里 app 只剩零星 2 个。
修复：app 四级回退，全部基于 Kubernetes 原生元数据（跨集群通用）：
1) app.kubernetes.io/name 标准约定
2) app 常见简写
3) __tmp_controller_name Pod owner(ReplicaSet) 去 hash → Deployment 名
（__meta_kubernetes_pod_controller_name 由
Promtail 直接从 K8s API 读取，任何集群都有，
不依赖 Kuboard/Rancher 等第三方工具注入的标签）
4) pod name 兜底，保证 app 永不为空
同时修复 PromtailHelmValues 模板同样的 app 逻辑，
并修正其 __meta_kubernetes__pod_name 双下划线笔误。
验证：astralx 的 app 值从 2 个 → 73 个。
=== 二、15 分钟 27 万条日志的真相 ===
排查结论：不是重复采集（positions 存 hostPath /run/promtail，Pod 重启不丢）。
真实原因：cex-openapi-gateway 残留 347 个 Evicted + 37 个 Error 的僵尸 Pod，
只有 1 个 Running。这些 Pod 的日志文件仍在 /var/log/pods/ 下，
Promtail 会把它们的历史异常堆栈（Reactor at reactor.core.publisher...）
全量采集，造成 27 万条的假象并污染存储。
修复：relabel_configs 首条加 drop 规则：
- source_labels: [__meta_kubernetes_pod_phase]
regex: (Succeeded|Failed)
action: drop
（两个模板都加）
=== 三、SecretKey 不再下发给前端 ===
安全要求：避免任何登录用户点「显示」按钮就能拿到对象存储 SK。
- StorageConfig.Sanitized(): secretKey 返回空串，仅保留 hasSecretKey 标记
（accessKey 仍明文返回，便于管理员核对用的是哪个 AK）
- 测试连接：StorageTestRequest 新增 id 字段，secretKey 留空时后端用
库里保存的凭据解密补齐（新建存储仍强制填写）
- 前端编辑时 SecretKey 一律留空 = 不修改，placeholder 显示
「已保存 · 留空则不修改」，测试时带上 id
=== 四、采集器支持指定命名空间 ===
- Collector 新增 TargetNamespaces []string，对应 promtail 的
kubernetes_sd_configs.namespaces.names（为空=全集群）
- PromtailDaemonsetYAML 新增 promtailNamespaceFilter 生成白名单
- service.Update 支持 targetNamespaces（兼容 []string 与逗号分隔字符串）
- 前端 CollectorEditDialog 增加「采集命名空间」输入（逗号分隔）
镜像：lghost/lokistack:latest + v0.1 = sha256:05b1505aedae
583 lines
17 KiB
Go
583 lines
17 KiB
Go
package services
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import (
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"encoding/json"
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"fmt"
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"sort"
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"strings"
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)
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// PromtailConfig 主机 Promtail 配置（推送至 lokiEndpoint，采集 logPath）
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// 生产级配置：持久化位置文件、批处理、重试、CRI日志格式解析
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// promtailExternalLabels 组并 cluster 标识与用户自定义标签(JSON)为 external_labels YAML 行
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func promtailExternalLabels(cluster string, labelsJSON string) string {
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lines := []string{fmt.Sprintf(" cluster: %q", cluster)}
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if labelsJSON != "" {
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var m map[string]string
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if err := json.Unmarshal([]byte(labelsJSON), &m); err == nil {
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keys := make([]string, 0, len(m))
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for k := range m {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for _, k := range keys {
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lines = append(lines, fmt.Sprintf(" %s: %q", k, m[k]))
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}
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}
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}
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return strings.Join(lines, "\n")
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}
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func PromtailConfig(lokiEndpoint, logPath, cluster, labelsJSON string) string {
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conf := fmt.Sprintf(`server:
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http_listen_port: 9080
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grpc_listen_port: 0
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log_level: info
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log_format: logfmt
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positions:
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filename: /var/lib/promtail/positions.yaml
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sync_period: 10s
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clients:
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- url: %s/loki/api/v1/push
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batchwait: 1s
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batchsize: 1048576
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timeout: 10s
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backoff_config:
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min_period: 500ms
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max_period: 5m
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max_retries: 10
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external_labels:
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job: host-logs
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__EXT_LABELS__
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limits_config:
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readline_rate_enabled: false
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readline_rate: 1000
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readline_burst: 10000
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max_streams: 0
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scrape_configs:
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- job_name: app
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static_configs:
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- targets: [localhost]
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labels:
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job: app
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host: ${HOSTNAME}
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__path__: %s
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pipeline_stages:
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- cri: {}
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- match:
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selector: '{job="app"}'
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stages:
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- timestamp:
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source: time
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format: RFC3339Nano
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- limit:
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rate: 1000
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burst: 10000
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drop: true
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`, lokiEndpoint, logPath)
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return strings.Replace(conf, "__EXT_LABELS__", promtailExternalLabels(cluster, labelsJSON), 1)
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}
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// PromtailHelmValues DaemonSet 模式 Promtail Helm values（生产级）
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// 包含：cri解析、kubernetes标签、批处理配置、资源限制
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func PromtailHelmValues(lokiEndpoint, cluster, labelsJSON string) string {
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values := fmt.Sprintf(`config:
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clients:
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- url: %s/loki/api/v1/push
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batchwait: 1s
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batchsize: 1048576
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timeout: 10s
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backoff_config:
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min_period: 500ms
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max_period: 5m
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max_retries: 10
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external_labels:
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__EXT_LABELS__
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positions:
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filename: /run/promtail/positions.yaml
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scrape_configs:
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- job_name: kubernetes-pods
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kubernetes_sd_configs:
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- role: pod
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pipeline_stages:
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- cri: {}
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- match:
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selector: '{app!=""}'
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stages:
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- docker: {}
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- match:
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selector: '{app!=""}'
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stages:
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- labels:
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app:
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namespace:
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pod:
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container:
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- limit:
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rate: 1000
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burst: 10000
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drop: true
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relabel_configs:
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- source_labels: [__meta_kubernetes_pod_phase]
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regex: (Succeeded|Failed)
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action: drop
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- source_labels: [__meta_kubernetes_pod_controller_name]
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regex: ([0-9a-z-.]+?)(-[0-9a-f]{8,10})?
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action: replace
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target_label: __tmp_controller_name
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- source_labels:
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- __meta_kubernetes_pod_label_app_kubernetes_io_name
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- __meta_kubernetes_pod_label_app
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- __tmp_controller_name
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- __meta_kubernetes_pod_name
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regex: ^;*([^;]+)(;.*)?$
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action: replace
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target_label: app
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- source_labels: [__meta_kubernetes_pod_annotation_kubernetes_io_config_hash]
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regex: .+
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action: replace
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target_label: config_hash
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- action: replace
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source_labels: ['__meta_kubernetes_pod_name']
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target_label: 'pod'
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- action: replace
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source_labels: ['__meta_kubernetes_namespace']
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target_label: 'namespace'
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- action: replace
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source_labels: ['__meta_kubernetes_pod_container_name']
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target_label: 'container'
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- action: replace
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source_labels: ['__meta_kubernetes_pod_node_name']
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target_label: 'node_name'
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- replacement: /var/log/pods/*$1/*.log
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separator: /
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source_labels: [__meta_kubernetes_pod_uid, __meta_kubernetes_pod_container_name]
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target_label: __path__
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daemonset:
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enabled: true
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resources:
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limits:
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cpu: 500m
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memory: 512Mi
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requests:
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cpu: 100m
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memory: 128Mi
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extraVolumes:
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- name: varlog
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hostPath:
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path: /var/log
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- name: varlibdockercontainers
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hostPath:
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path: /var/lib/docker/containers
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- name: promtail-run
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hostPath:
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path: /run/promtail
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extraVolumeMounts:
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- name: varlog
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mountPath: /var/log
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readOnly: true
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- name: varlibdockercontainers
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mountPath: /var/lib/docker/containers
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readOnly: true
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- name: promtail-run
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mountPath: /run/promtail
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`, lokiEndpoint)
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return strings.Replace(values, "__EXT_LABELS__", promtailExternalLabels(cluster, labelsJSON), 1)
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}
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// PromtailDaemonsetYAML DaemonSet 模式纯 YAML 安装(SA/RBAC/ConfigMap/DaemonSet),
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// 取代 helm 安装 —— 后端无需安装 helm 二进制。
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// relabel 体系与主流 helm chart 对齐:namespace/pod/container/node_name + __path__ 按 pod uid 精确匹配。
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// promtailNamespaceFilter 生成 kubernetes_sd_configs 的命名空间白名单。
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// namespaces 为空 → 返回空串（采集全集群所有命名空间）。
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func promtailNamespaceFilter(namespaces []string) string {
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clean := make([]string, 0, len(namespaces))
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for _, n := range namespaces {
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if n = strings.TrimSpace(n); n != "" {
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clean = append(clean, n)
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}
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}
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if len(clean) == 0 {
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return ""
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}
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var b strings.Builder
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b.WriteString(" namespaces:\n names:\n")
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for _, n := range clean {
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b.WriteString(" - ")
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b.WriteString(n)
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b.WriteString("\n")
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}
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return b.String()
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}
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func PromtailDaemonsetYAML(ns, lokiURL, clusterName, labelsJSON string, targetNamespaces []string) string {
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promtailImage := ResolveImageFor("promtail", "grafana/promtail", "3.4.0")
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extLabels := promtailExternalLabels(clusterName, labelsJSON)
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nsFilter := promtailNamespaceFilter(targetNamespaces)
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return fmt.Sprintf(`apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: promtail
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namespace: %s
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: opsxloki-promtail
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rules:
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- apiGroups: [""]
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resources: ["pods", "nodes"]
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verbs: ["get", "list", "watch"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: opsxloki-promtail
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: opsxloki-promtail
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subjects:
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- kind: ServiceAccount
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name: promtail
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namespace: %s
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: promtail
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namespace: %s
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data:
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promtail.yaml: |
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server:
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http_listen_port: 3101
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grpc_listen_port: 0
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positions:
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filename: /run/promtail/positions.yaml
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clients:
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- url: %s/loki/api/v1/push
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batchwait: 1s
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batchsize: 1048576
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backoff_config:
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min_period: 500ms
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max_period: 5m
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max_retries: 10
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external_labels:
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%s
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scrape_configs:
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- job_name: kubernetes-pods
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kubernetes_sd_configs:
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- role: pod
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%s
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pipeline_stages:
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- cri: {}
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- multiline:
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firstline: '^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}[+\\-]\\d{2}:\\d{2}'
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max_wait_time: 3s
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max_lines: 500
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- timestamp:
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source: time
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format: RFC3339Nano
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relabel_configs:
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# 跳过已终止的 Pod（Evicted / Failed / Succeeded）。
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# 实证：某服务残留 387 个 Evicted Pod，日志文件还在节点上，
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# Promtail 会把它们的历史异常堆栈全量采回来，导致 15 分钟 27 万条的假象，
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# 也会污染 Loki 存储和查询结果。
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- source_labels: [__meta_kubernetes_pod_phase]
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regex: (Succeeded|Failed)
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action: drop
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# 从 controller name 提取 deployment 名（去掉 replicaset 哈希）
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- source_labels: [__meta_kubernetes_pod_controller_name]
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regex: ([0-9a-z-.]+?)(-[0-9a-f]{8,10})?
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action: replace
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target_label: __tmp_controller_name
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# app 四级回退 —— 全部基于 Kubernetes 原生元数据，跨集群通用：
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# 1) app.kubernetes.io/name ← K8s 标准标签约定
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# 2) app ← 最常见的简写
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# 3) controller name 去 hash ← Pod 的 owner(ReplicaSet) → Deployment 名
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# __meta_kubernetes_pod_controller_name 是
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# Promtail 从 K8s API 直接拿的，任何集群都有，
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# 不依赖任何第三方工具注入的标签
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# 4) pod name ← 最后兜底，保证 app 永不为空
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#
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# 不使用 k8s.kuboard.cn/name 之类的平台私有标签：那只是 Kuboard 管理的集群才有，
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# 换 Rancher/Lens/Helm/kubectl 部署的集群就不存在，会破坏通用性。
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- source_labels:
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- __meta_kubernetes_pod_label_app_kubernetes_io_name
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- __meta_kubernetes_pod_label_app
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- __tmp_controller_name
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- __meta_kubernetes_pod_name
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regex: ^;*([^;]+)(;.*)?$
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action: replace
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target_label: app
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# instance：app.kubernetes.io/instance → instance
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- source_labels: [__meta_kubernetes_pod_label_app_kubernetes_io_instance, __meta_kubernetes_pod_label_instance]
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regex: ^;*([^;]+)(;.*)?$
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action: replace
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target_label: instance
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# component：app.kubernetes.io/component → component
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- source_labels: [__meta_kubernetes_pod_label_app_kubernetes_io_component, __meta_kubernetes_pod_label_component]
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regex: ^;*([^;]+)(;.*)?$
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action: replace
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target_label: component
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- action: replace
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source_labels: [__meta_kubernetes_pod_node_name]
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target_label: node_name
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- action: replace
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source_labels: [__meta_kubernetes_namespace]
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target_label: namespace
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- action: replace
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source_labels: [__meta_kubernetes_pod_name]
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target_label: pod
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- action: replace
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source_labels: [__meta_kubernetes_pod_container_name]
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target_label: container
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# job: namespace/app（必须放在 app 之后，否则取到的是未回退的空值）
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- action: replace
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replacement: $1
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separator: /
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source_labels: [namespace, app]
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target_label: job
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- action: replace
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replacement: /var/log/pods/*$1/*.log
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separator: /
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source_labels: [__meta_kubernetes_pod_uid, __meta_kubernetes_pod_container_name]
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target_label: __path__
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---
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: promtail
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namespace: %s
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labels:
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app: promtail
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spec:
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selector:
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matchLabels:
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app: promtail
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template:
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metadata:
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labels:
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app: promtail
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spec:
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serviceAccountName: promtail
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tolerations:
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- effect: NoSchedule
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operator: Exists
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containers:
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- name: promtail
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image: %s
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imagePullPolicy: IfNotPresent
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args: ["-config.file=/etc/promtail/promtail.yaml"]
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env:
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- name: HOSTNAME
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valueFrom:
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fieldRef:
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fieldPath: spec.nodeName
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ports:
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- name: http-metrics
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containerPort: 3101
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readinessProbe:
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httpGet:
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path: /ready
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port: http-metrics
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initialDelaySeconds: 10
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periodSeconds: 10
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timeoutSeconds: 3
|
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failureThreshold: 5
|
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resources:
|
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requests:
|
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cpu: 100m
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memory: 128Mi
|
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limits:
|
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cpu: 500m
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memory: 512Mi
|
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volumeMounts:
|
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- name: config
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mountPath: /etc/promtail
|
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- name: run
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mountPath: /run/promtail
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- name: pods
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mountPath: /var/log/pods
|
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readOnly: true
|
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- name: containers
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mountPath: /var/lib/docker/containers
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readOnly: true
|
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volumes:
|
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- name: config
|
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configMap:
|
||
name: promtail
|
||
- name: run
|
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hostPath:
|
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path: /run/promtail
|
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- name: pods
|
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hostPath:
|
||
path: /var/log/pods
|
||
- name: containers
|
||
hostPath:
|
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path: /var/lib/docker/containers
|
||
`, ns, ns, ns, lokiURL, extLabels, nsFilter, ns, promtailImage)
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}
|
||
|
||
// FluentbitConfig Sidecar 模式 Fluent Bit 配置（采集 logPath，推送至 lokiHost:lokiPort）
|
||
// Sidecar 已明确知道应用与命名空间，无需 Kubernetes 元数据过滤器。
|
||
func FluentbitConfig(lokiHost, lokiPort, logPath, app, namespace string) string {
|
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return fmt.Sprintf(`[SERVICE]
|
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Flush 1
|
||
Log_Level info
|
||
HTTP_Server On
|
||
HTTP_Listen 0.0.0.0
|
||
HTTP_Port 2020
|
||
storage.path /tmp/flb-storage/
|
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storage.sync normal
|
||
storage.checksum off
|
||
storage.backlog.mem_limit 5M
|
||
Health_Check On
|
||
HC_Errors_Count 5
|
||
HC_Retry_Failure_Count 5
|
||
HC_Period 60
|
||
|
||
[INPUT]
|
||
Name tail
|
||
Path %s
|
||
Tag app.%s
|
||
Refresh_Interval 5
|
||
Mem_Buf_Limit 10MB
|
||
Skip_Long_Lines On
|
||
Read_from_Head True
|
||
DB /tmp/flb.db
|
||
DB.Sync Normal
|
||
Buffer_Max_Size 1MB
|
||
storage.type filesystem
|
||
|
||
[FILTER]
|
||
Name modify
|
||
Match app.*
|
||
Add namespace %s
|
||
Add app %s
|
||
Add source fluent-bit
|
||
|
||
[OUTPUT]
|
||
Name loki
|
||
Match *
|
||
Host %s
|
||
Port %s
|
||
Labels job=fluent-bit, app=%s, namespace=%s
|
||
Line_Format json
|
||
Retry_Limit 10
|
||
`, logPath, app, namespace, app, lokiHost, lokiPort, app, namespace)
|
||
}
|
||
|
||
// FluentbitConfigMapYAML 为每个采集策略生成独立 ConfigMap，避免同命名空间的 Sidecar 相互覆盖。
|
||
func FluentbitConfigMapYAML(conf, namespace, name string) string {
|
||
return fmt.Sprintf(`apiVersion: v1
|
||
kind: ConfigMap
|
||
metadata:
|
||
name: %s
|
||
namespace: %s
|
||
data:
|
||
fluent-bit.conf: |
|
||
%s
|
||
`, name, namespace, indentBlock(conf, " "))
|
||
}
|
||
|
||
// SidecarPatchYAML 将业务容器与 Fluent Bit 挂到同一日志卷和目录。
|
||
func SidecarPatchYAML(configMapName string, mount sidecarLogMount) string {
|
||
volume := ""
|
||
if mount.createVolume {
|
||
volume = fmt.Sprintf(" - name: %s\n emptyDir: {}\n", mount.volumeName)
|
||
}
|
||
appMount := ""
|
||
if mount.mountApplication {
|
||
appMount = fmt.Sprintf(" - name: %s\n volumeMounts:\n - name: %s\n mountPath: %q\n", mount.containerName, mount.volumeName, mount.mountPath)
|
||
}
|
||
subPath := ""
|
||
if mount.subPath != "" {
|
||
subPath = fmt.Sprintf(" subPath: %q\n", mount.subPath)
|
||
}
|
||
return fmt.Sprintf(`spec:
|
||
template:
|
||
spec:
|
||
volumes:
|
||
%s - name: fluent-bit-config
|
||
configMap:
|
||
name: %s
|
||
- name: fluent-bit-state
|
||
emptyDir: {}
|
||
containers:
|
||
%s - name: fluent-bit
|
||
image: %s
|
||
imagePullPolicy: IfNotPresent
|
||
ports:
|
||
- name: fluent-bit-http
|
||
containerPort: 2020
|
||
protocol: TCP
|
||
volumeMounts:
|
||
- name: %s
|
||
mountPath: %q
|
||
%s readOnly: true
|
||
- name: fluent-bit-config
|
||
mountPath: /fluent-bit/etc/
|
||
- name: fluent-bit-state
|
||
mountPath: /tmp
|
||
resources:
|
||
limits:
|
||
cpu: 500m
|
||
memory: 512Mi
|
||
requests:
|
||
cpu: 100m
|
||
memory: 128Mi
|
||
securityContext:
|
||
allowPrivilegeEscalation: false
|
||
readOnlyRootFilesystem: true
|
||
capabilities:
|
||
drop:
|
||
- ALL
|
||
livenessProbe:
|
||
httpGet:
|
||
path: /
|
||
port: fluent-bit-http
|
||
initialDelaySeconds: 10
|
||
periodSeconds: 10
|
||
readinessProbe:
|
||
httpGet:
|
||
path: /
|
||
port: fluent-bit-http
|
||
initialDelaySeconds: 5
|
||
periodSeconds: 5
|
||
`, volume, configMapName, appMount, ResolveImageFor("fluentbit", "fluent/fluent-bit", "5.1.5"), mount.volumeName, mount.mountPath, subPath)
|
||
}
|
||
|
||
// indentBlock 给每行加前缀（ConfigMap 嵌入配置需缩进）
|
||
func indentBlock(s, pad string) string {
|
||
lines := strings.Split(s, "\n")
|
||
for i, l := range lines {
|
||
if l != "" {
|
||
lines[i] = pad + l
|
||
}
|
||
}
|
||
return strings.Join(lines, "\n")
|
||
}
|
||
|
||
// parseLokiURL 从 http://host:port 提取 host 与 port（Fluent Bit OUTPUT 需要）
|
||
func parseLokiURL(endpoint string) (host, port string) {
|
||
u := strings.TrimSpace(endpoint)
|
||
u = strings.TrimPrefix(u, "http://")
|
||
u = strings.TrimPrefix(u, "https://")
|
||
if i := strings.Index(u, "/"); i >= 0 {
|
||
u = u[:i]
|
||
}
|
||
if i := strings.LastIndex(u, ":"); i >= 0 {
|
||
return u[:i], u[i+1:]
|
||
}
|
||
return u, "3100"
|
||
}
|