deployment

Name: deployment
Author: chaterm

43installs12forks

How to install deployment?

chaterm/terminal-skills/deployment

$npx -y skills add chaterm/terminal-skills --skill deployment

Installs into the current project.

Summary

Kubernetes Deployment 管理

Files · 1

View on GitHub

SKILL.md

1	# Deployment 管理
2
3	## 概述
4	Deployment 滚动更新、回滚、扩缩容等技能。
5
6	## 基础操作
7
8	### 查看 Deployment
9	```bash
10	# 列出 Deployment
11	kubectl get deployments
12	kubectl get deploy -o wide
13	kubectl get deploy -n namespace
14
15	# 详细信息
16	kubectl describe deploy deployment-name
17	kubectl get deploy deployment-name -o yaml
18	```
19
20	### 创建 Deployment
21	```yaml
22	# deployment.yaml
23	apiVersion: apps/v1
24	kind: Deployment
25	metadata:
26	name: nginx-deployment
27	labels:
28	app: nginx
29	spec:
30	replicas: 3
31	selector:
32	matchLabels:
33	app: nginx
34	template:
35	metadata:
36	labels:
37	app: nginx
38	spec:
39	containers:
40	- name: nginx
41	image: nginx:1.20
42	ports:
43	- containerPort: 80
44	resources:
45	requests:
46	memory: "64Mi"
47	cpu: "100m"
48	limits:
49	memory: "128Mi"
50	cpu: "200m"
51	```
52
53	```bash
54	kubectl apply -f deployment.yaml
55	kubectl create deployment nginx --image=nginx:1.20 --replicas=3
56	```
57
58	### 删除 Deployment
59	```bash
60	kubectl delete deploy deployment-name
61	kubectl delete -f deployment.yaml
62	```
63
64	## 扩缩容
65
66	```bash
67	# 手动扩缩容
68	kubectl scale deploy deployment-name --replicas=5
69
70	# 自动扩缩容 (HPA)
71	kubectl autoscale deploy deployment-name --min=2 --max=10 --cpu-percent=80
72
73	# 查看 HPA
74	kubectl get hpa
75	kubectl describe hpa deployment-name
76	```
77
78	### HPA 配置
79	```yaml
80	apiVersion: autoscaling/v2
81	kind: HorizontalPodAutoscaler
82	metadata:
83	name: nginx-hpa
84	spec:
85	scaleTargetRef:
86	apiVersion: apps/v1
87	kind: Deployment
88	name: nginx-deployment
89	minReplicas: 2
90	maxReplicas: 10
91	metrics:
92	- type: Resource
93	resource:
94	name: cpu
95	target:
96	type: Utilization
97	averageUtilization: 80
98	- type: Resource
99	resource:
100	name: memory
101	target:
102	type: Utilization
103	averageUtilization: 80
104	```
105
106	## 滚动更新
107
108	### 更新策略配置
109	```yaml
110	spec:
111	strategy:
112	type: RollingUpdate
113	rollingUpdate:
114	maxSurge: 25% # 最多超出期望副本数
115	maxUnavailable: 25% # 最多不可用副本数
116	```
117
118	### 执行更新
119	```bash
120	# 更新镜像
121	kubectl set image deploy/deployment-name container-name=nginx:1.21
122
123	# 更新环境变量
124	kubectl set env deploy/deployment-name ENV_VAR=value
125
126	# 更新资源限制
127	kubectl set resources deploy/deployment-name -c container-name --limits=cpu=200m,memory=256Mi
128
129	# 应用配置文件更新
130	kubectl apply -f deployment.yaml
131
132	# 记录更新原因
133	kubectl set image deploy/deployment-name container-name=nginx:1.21 --record
134	```
135
136	### 查看更新状态
137	```bash
138	# 查看滚动更新状态
139	kubectl rollout status deploy/deployment-name
140
141	# 查看更新历史
142	kubectl rollout history deploy/deployment-name
143	kubectl rollout history deploy/deployment-name --revision=2
144
145	# 暂停/恢复更新
146	kubectl rollout pause deploy/deployment-name
147	kubectl rollout resume deploy/deployment-name
148	```
149
150	## 回滚
151
152	```bash
153	# 回滚到上一版本
154	kubectl rollout undo deploy/deployment-name
155
156	# 回滚到指定版本
157	kubectl rollout undo deploy/deployment-name --to-revision=2
158
159	# 查看回滚状态
160	kubectl rollout status deploy/deployment-name
161	```
162
163	## 高级配置
164
165	### 健康检查
166	```yaml
167	spec:
168	template:
169	spec:
170	containers:
171	- name: app
172	livenessProbe:
173	httpGet:
174	path: /healthz
175	port: 8080
176	initialDelaySeconds: 15
177	periodSeconds: 10
178	failureThreshold: 3
179	readinessProbe:
180	httpGet:
181	path: /ready
182	port: 8080
183	initialDelaySeconds: 5
184	periodSeconds: 5
185	startupProbe:
186	httpGet:
187	path: /startup
188	port: 8080
189	failureThreshold: 30
190	periodSeconds: 10
191	```
192
193	### 亲和性配置
194	```yaml
195	spec:
196	template:
197	spec:
198	affinity:
199	# Pod 反亲和（分散部署）
200	podAntiAffinity:
201	preferredDuringSchedulingIgnoredDuringExecution:
202	- weight: 100
203	podAffinityTerm:
204	labelSelector:
205	matchLabels:
206	app: nginx
207	topologyKey: kubernetes.io/hostname
208	# 节点亲和
209	nodeAffinity:
210	requiredDuringSchedulingIgnoredDuringExecution:
211	nodeSelectorTerms:
212	- matchExpressions:
213	- key: node-type
214	operator: In
215	values:
216	- worker
217	```
218
219	### 容忍度
220	```yaml
221	spec:
222	template:
223	spec:
224	tolerations:
225	- key: "node-role.kubernetes.io/master"
226	operator: "Exists"
227	effect: "NoSchedule"
228	```
229
230	## 常见场景
231
232	### 场景 1：蓝绿部署
233	```bash
234	# 创建新版本 Deployment
235	kubectl apply -f deployment-v2.yaml
236
237	# 切换 Service 到新版本
238	kubectl patch service my-service -p '{"spec":{"selector":{"version":"v2"}}}'
239
240	# 验证后删除旧版本
241	kubectl delete deploy deployment-v1
242	```
243
244	### 场景 2：金丝雀发布
245	```yaml
246	# 创建金丝雀 Deployment（少量副本）
247	apiVersion: apps/v1
248	kind: Deployment
249	metadata:
250	name: nginx-canary
251	spec:
252	replicas: 1
253	selector:
254	matchLabels:
255	app: nginx
256	track: canary
257	template:
258	metadata:
259	labels:
260	app: nginx
261	track: canary
262	spec:
263	containers:
264	- name: nginx
265	image: nginx:1.21
266	```
267
268	### 场景 3：批量重启 Pod
269	```bas

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deployment

43installs12forks

View on GitHub

How to install deployment?

chaterm/terminal-skills/deployment

$npx -y skills add chaterm/terminal-skills --skill deployment

Installs into the current project.

Summary

Kubernetes Deployment 管理

Files · 1

View on GitHub

SKILL.md

1	# Deployment 管理
2
3	## 概述
4	Deployment 滚动更新、回滚、扩缩容等技能。
5
6	## 基础操作
7
8	### 查看 Deployment
9	```bash
10	# 列出 Deployment
11	kubectl get deployments
12	kubectl get deploy -o wide
13	kubectl get deploy -n namespace
14
15	# 详细信息
16	kubectl describe deploy deployment-name
17	kubectl get deploy deployment-name -o yaml
18	```
19
20	### 创建 Deployment
21	```yaml
22	# deployment.yaml
23	apiVersion: apps/v1
24	kind: Deployment
25	metadata:
26	name: nginx-deployment
27	labels:
28	app: nginx
29	spec:
30	replicas: 3
31	selector:
32	matchLabels:
33	app: nginx
34	template:
35	metadata:
36	labels:
37	app: nginx
38	spec:
39	containers:
40	- name: nginx
41	image: nginx:1.20
42	ports:
43	- containerPort: 80
44	resources:
45	requests:
46	memory: "64Mi"
47	cpu: "100m"
48	limits:
49	memory: "128Mi"
50	cpu: "200m"
51	```
52
53	```bash
54	kubectl apply -f deployment.yaml
55	kubectl create deployment nginx --image=nginx:1.20 --replicas=3
56	```
57
58	### 删除 Deployment
59	```bash
60	kubectl delete deploy deployment-name
61	kubectl delete -f deployment.yaml
62	```
63
64	## 扩缩容
65
66	```bash
67	# 手动扩缩容
68	kubectl scale deploy deployment-name --replicas=5
69
70	# 自动扩缩容 (HPA)
71	kubectl autoscale deploy deployment-name --min=2 --max=10 --cpu-percent=80
72
73	# 查看 HPA
74	kubectl get hpa
75	kubectl describe hpa deployment-name
76	```
77
78	### HPA 配置
79	```yaml
80	apiVersion: autoscaling/v2
81	kind: HorizontalPodAutoscaler
82	metadata:
83	name: nginx-hpa
84	spec:
85	scaleTargetRef:
86	apiVersion: apps/v1
87	kind: Deployment
88	name: nginx-deployment
89	minReplicas: 2
90	maxReplicas: 10
91	metrics:
92	- type: Resource
93	resource:
94	name: cpu
95	target:
96	type: Utilization
97	averageUtilization: 80
98	- type: Resource
99	resource:
100	name: memory
101	target:
102	type: Utilization
103	averageUtilization: 80
104	```
105
106	## 滚动更新
107
108	### 更新策略配置
109	```yaml
110	spec:
111	strategy:
112	type: RollingUpdate
113	rollingUpdate:
114	maxSurge: 25% # 最多超出期望副本数
115	maxUnavailable: 25% # 最多不可用副本数
116	```
117
118	### 执行更新
119	```bash
120	# 更新镜像
121	kubectl set image deploy/deployment-name container-name=nginx:1.21
122
123	# 更新环境变量
124	kubectl set env deploy/deployment-name ENV_VAR=value
125
126	# 更新资源限制
127	kubectl set resources deploy/deployment-name -c container-name --limits=cpu=200m,memory=256Mi
128
129	# 应用配置文件更新
130	kubectl apply -f deployment.yaml
131
132	# 记录更新原因
133	kubectl set image deploy/deployment-name container-name=nginx:1.21 --record
134	```
135
136	### 查看更新状态
137	```bash
138	# 查看滚动更新状态
139	kubectl rollout status deploy/deployment-name
140
141	# 查看更新历史
142	kubectl rollout history deploy/deployment-name
143	kubectl rollout history deploy/deployment-name --revision=2
144
145	# 暂停/恢复更新
146	kubectl rollout pause deploy/deployment-name
147	kubectl rollout resume deploy/deployment-name
148	```
149
150	## 回滚
151
152	```bash
153	# 回滚到上一版本
154	kubectl rollout undo deploy/deployment-name
155
156	# 回滚到指定版本
157	kubectl rollout undo deploy/deployment-name --to-revision=2
158
159	# 查看回滚状态
160	kubectl rollout status deploy/deployment-name
161	```
162
163	## 高级配置
164
165	### 健康检查
166	```yaml
167	spec:
168	template:
169	spec:
170	containers:
171	- name: app
172	livenessProbe:
173	httpGet:
174	path: /healthz
175	port: 8080
176	initialDelaySeconds: 15
177	periodSeconds: 10
178	failureThreshold: 3
179	readinessProbe:
180	httpGet:
181	path: /ready
182	port: 8080
183	initialDelaySeconds: 5
184	periodSeconds: 5
185	startupProbe:
186	httpGet:
187	path: /startup
188	port: 8080
189	failureThreshold: 30
190	periodSeconds: 10
191	```
192
193	### 亲和性配置
194	```yaml
195	spec:
196	template:
197	spec:
198	affinity:
199	# Pod 反亲和（分散部署）
200	podAntiAffinity:
201	preferredDuringSchedulingIgnoredDuringExecution:
202	- weight: 100
203	podAffinityTerm:
204	labelSelector:
205	matchLabels:
206	app: nginx
207	topologyKey: kubernetes.io/hostname
208	# 节点亲和
209	nodeAffinity:
210	requiredDuringSchedulingIgnoredDuringExecution:
211	nodeSelectorTerms:
212	- matchExpressions:
213	- key: node-type
214	operator: In
215	values:
216	- worker
217	```
218
219	### 容忍度
220	```yaml
221	spec:
222	template:
223	spec:
224	tolerations:
225	- key: "node-role.kubernetes.io/master"
226	operator: "Exists"
227	effect: "NoSchedule"
228	```
229
230	## 常见场景
231
232	### 场景 1：蓝绿部署
233	```bash
234	# 创建新版本 Deployment
235	kubectl apply -f deployment-v2.yaml
236
237	# 切换 Service 到新版本
238	kubectl patch service my-service -p '{"spec":{"selector":{"version":"v2"}}}'
239
240	# 验证后删除旧版本
241	kubectl delete deploy deployment-v1
242	```
243
244	### 场景 2：金丝雀发布
245	```yaml
246	# 创建金丝雀 Deployment（少量副本）
247	apiVersion: apps/v1
248	kind: Deployment
249	metadata:
250	name: nginx-canary
251	spec:
252	replicas: 1
253	selector:
254	matchLabels:
255	app: nginx
256	track: canary
257	template:
258	metadata:
259	labels:
260	app: nginx
261	track: canary
262	spec:
263	containers:
264	- name: nginx
265	image: nginx:1.21
266	```
267
268	### 场景 3：批量重启 Pod
269	```bas

People who liked this also viewed

6 picks

Type