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Mackerel on k8s一晩で抑えるKubernetes監視の世界 - cndjp第7回勉強会
@koooge
こうげ
広島生まれ
組み込みエンジニア
インフラエンジニア:
2
がんばれ西日本
西日本豪雨災害
yahooネット募金から Tポイントで寄付できます
https://docs-donation.yahoo.co.jp/report/nishinihon201807/
3
まず
Mackerelの基本
簡単
楽 マネージド
綺麗
日本語 英語サポート
5
6
Mackerel 基本機能
7
Host Metrics
経由で自動 収集
□
豊富
□
□
円
8
Service Metrics
コールで好きなメトリックグラフを作れる
公式 から送信可能
□
□
円
9
External Http monitor
外形監視
証明書期限チェック
円
10
on
の前に脱線「Mackerel kubernetes」
2番目に私のpost
(公式blogより上)
12
の前に脱線「Mackerel kubernetes」
13
の前に脱線「Mackerel kubernetes」
14
本題: Mackerel on
k8s
公式
公式
▪ k8s連携は今のところない
□ とはいえ問題なく利用できます
15
mackerel-agent
deploy
16
Deploy
DaemonSet(mackerel-agent)
17
node node
agent agent
18
apiVersion: apps/v1
kind: DaemonSet
spec:
template:
spec:
containers:
- name: mackerel-agent
image: mackerel/mackerel-agent
…
# ホスト識別用/var/lib/mackerel-agent/idをマウント
volumeMounts:
- name: varlibmackerel-agent
mountPath: /var/lib/mackerel-agent
volumes:
- name: varlibmackerel-agent
hostPath:
path: /var/lib/mackerel-agent
apiVersion: v1
kind: ConfigMap
metadata:
name: mackerel-agent
namespace: kube-system
data:
apikey: "<your apikey>"
manifest
Deploy
mackerel-plugin-docker
containerのmetrics取得
19
...
envFrom:
- configMapRef:
name: mackerel-agent
volumeMounts:
- name: varrundockersock
mountPath: /var/run/docker.sock
volumes:
- name: varrundockersock
hostPath:
path: /var/run/docker.sock
apiVersion: v1
kind: ConfigMap
metadata:
name: mackerel-agent
namespace: kube-system
data:
enable_docker_plugin: "1"
auto_retirement: "1"
opts: "-v"
include: "/path/to/conf.d/*.conf"
apikey: "<your apikey>"
Deploy
tolerations
も監視する例
20
...
spec:
tolerations:
- operator: Exists
effect: NoSchedule
- operator: Exists
effect: NoExecute
- operator: Exists
...
課題
Scaleの監視
21
Scaleの監視
k8sで監視したい
□ NodeのScale
□ PodのScale
22
NodeのScale監視
Cluster Autoscaler
未使用。 で監視しています
23
PodのScale監視
HPA(Horizontal Pod Autoscaler)
出来てません、 自作しかないかも
教えて下さい
24
Mackerel on k8s
まとめ
簡単・楽・綺麗
Service Metrics・External Http Monitor
plugin豊富
日本語/英語サポート
k8sはこれから感
25

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Mackerel on k8s