helm-charts

Name: helm-charts
Author: BagelHole

42stars4forks

How to install helm-charts?

bagelhole/devops-security-agent-skills/helm-charts

$npx -y skills add BagelHole/DevOps-Security-Agent-Skills --skill helm-charts

Installs into the current project.

Summary

Create, manage, and deploy Helm charts for Kubernetes package management. Build reusable chart templates, manage releases, configure values, and use Helm repositories. Use when packaging Kubernetes applications or managing K8s deployments with Helm.

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SKILL.md

1	# Helm Charts
2
3	Package and deploy Kubernetes applications using Helm, the package manager for Kubernetes.
4
5	## When to Use This Skill
6
7	Use this skill when:
8	- Creating reusable Kubernetes application packages
9	- Deploying applications with configurable values
10	- Managing Helm releases and upgrades
11	- Using third-party Helm charts
12	- Implementing chart versioning and repositories
13
14	## Prerequisites
15
16	- Helm 3.x installed
17	- kubectl configured with cluster access
18	- Basic Kubernetes knowledge
19
20	## Chart Structure
21
22	```
23	mychart/
24	├── Chart.yaml # Chart metadata
25	├── values.yaml # Default configuration values
26	├── charts/ # Chart dependencies
27	├── templates/ # Kubernetes manifest templates
28	│ ├── deployment.yaml
29	│ ├── service.yaml
30	│ ├── ingress.yaml
31	│ ├── configmap.yaml
32	│ ├── secret.yaml
33	│ ├── _helpers.tpl # Template helpers
34	│ ├── NOTES.txt # Post-install notes
35	│ └── tests/
36	│ └── test-connection.yaml
37	└── .helmignore # Files to ignore
38	```
39
40	## Chart.yaml
41
42	```yaml
43	apiVersion: v2
44	name: myapp
45	description: A Helm chart for MyApp
46	type: application
47	version: 1.0.0
48	appVersion: "2.0.0"
49	keywords:
50	- myapp
51	- web
52	maintainers:
53	- name: DevOps Team
54	email: devops@example.com
55	dependencies:
56	- name: postgresql
57	version: "12.x.x"
58	repository: "https://charts.bitnami.com/bitnami"
59	condition: postgresql.enabled
60	```
61
62	## values.yaml
63
64	```yaml
65	replicaCount: 2
66
67	image:
68	repository: myapp
69	tag: "" # Defaults to appVersion
70	pullPolicy: IfNotPresent
71
72	service:
73	type: ClusterIP
74	port: 80
75
76	ingress:
77	enabled: false
78	className: nginx
79	hosts:
80	- host: myapp.example.com
81	paths:
82	- path: /
83	pathType: Prefix
84	tls: []
85
86	resources:
87	limits:
88	cpu: 500m
89	memory: 256Mi
90	requests:
91	cpu: 100m
92	memory: 128Mi
93
94	postgresql:
95	enabled: true
96	auth:
97	database: myapp
98	```
99
100	## Templates
101
102	### Deployment Template
103
104	```yaml
105	# templates/deployment.yaml
106	apiVersion: apps/v1
107	kind: Deployment
108	metadata:
109	name: {{ include "myapp.fullname" . }}
110	labels:
111	{{- include "myapp.labels" . \| nindent 4 }}
112	spec:
113	replicas: {{ .Values.replicaCount }}
114	selector:
115	matchLabels:
116	{{- include "myapp.selectorLabels" . \| nindent 6 }}
117	template:
118	metadata:
119	labels:
120	{{- include "myapp.selectorLabels" . \| nindent 8 }}
121	spec:
122	containers:
123	- name: {{ .Chart.Name }}
124	image: "{{ .Values.image.repository }}:{{ .Values.image.tag \| default .Chart.AppVersion }}"
125	imagePullPolicy: {{ .Values.image.pullPolicy }}
126	ports:
127	- name: http
128	containerPort: 8080
129	{{- with .Values.resources }}
130	resources:
131	{{- toYaml . \| nindent 12 }}
132	{{- end }}
133	env:
134	- name: DATABASE_URL
135	valueFrom:
136	secretKeyRef:
137	name: {{ include "myapp.fullname" . }}-secrets
138	key: database-url
139	```
140
141	### Helper Functions
142
143	```yaml
144	# templates/_helpers.tpl
145	{{/*
146	Expand the name of the chart.
147	*/}}
148	{{- define "myapp.name" -}}
149	{{- default .Chart.Name .Values.nameOverride \| trunc 63 \| trimSuffix "-" }}
150	{{- end }}
151
152	{{/*
153	Create a default fully qualified app name.
154	*/}}
155	{{- define "myapp.fullname" -}}
156	{{- if .Values.fullnameOverride }}
157	{{- .Values.fullnameOverride \| trunc 63 \| trimSuffix "-" }}
158	{{- else }}
159	{{- $name := default .Chart.Name .Values.nameOverride }}
160	{{- printf "%s-%s" .Release.Name $name \| trunc 63 \| trimSuffix "-" }}
161	{{- end }}
162	{{- end }}
163
164	{{/*
165	Common labels
166	*/}}
167	{{- define "myapp.labels" -}}
168	helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version }}
169	{{ include "myapp.selectorLabels" . }}
170	app.kubernetes.io/version: {{ .Chart.AppVersion \| quote }}
171	app.kubernetes.io/managed-by: {{ .Release.Service }}
172	{{- end }}
173
174	{{/*
175	Selector labels
176	*/}}
177	{{- define "myapp.selectorLabels" -}}
178	app.kubernetes.io/name: {{ include "myapp.name" . }}
179	app.kubernetes.io/instance: {{ .Release.Name }}
180	{{- end }}
181	```
182
183	### Conditional Resources
184
185	```yaml
186	# templates/ingress.yaml
187	{{- if .Values.ingress.enabled -}}
188	apiVersion: networking.k8s.io/v1
189	kind: Ingress
190	metadata:
191	name: {{ include "myapp.fullname" . }}
192	labels:
193	{{- include "myapp.labels" . \| nindent 4 }}
194	{{- with .Values.ingress.annotations }}
195	annotations:
196	{{- toYaml . \| nindent 4 }}
197	{{- end }}
198	spec:
199	ingressClassName: {{ .Values.ingress.className }}
200	{{- if .Values.ingress.tls }}
201	tls:
202	{{- range .Values.ingress.tls }}
203	- hosts:
204	{{- range .hosts }}
205	- {{ . \| quote }}
206	{{- end }}
207	secretName: {{ .secretName }}
208	{{- end }}
209	{{- end }}
210	rules:
211	{{- range .Values.ingress.hosts }}

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Type

helm-charts

42stars4forks

View on GitHub

How to install helm-charts?

bagelhole/devops-security-agent-skills/helm-charts

$npx -y skills add BagelHole/DevOps-Security-Agent-Skills --skill helm-charts

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Helm Charts
2
3	Package and deploy Kubernetes applications using Helm, the package manager for Kubernetes.
4
5	## When to Use This Skill
6
7	Use this skill when:
8	- Creating reusable Kubernetes application packages
9	- Deploying applications with configurable values
10	- Managing Helm releases and upgrades
11	- Using third-party Helm charts
12	- Implementing chart versioning and repositories
13
14	## Prerequisites
15
16	- Helm 3.x installed
17	- kubectl configured with cluster access
18	- Basic Kubernetes knowledge
19
20	## Chart Structure
21
22	```
23	mychart/
24	├── Chart.yaml # Chart metadata
25	├── values.yaml # Default configuration values
26	├── charts/ # Chart dependencies
27	├── templates/ # Kubernetes manifest templates
28	│ ├── deployment.yaml
29	│ ├── service.yaml
30	│ ├── ingress.yaml
31	│ ├── configmap.yaml
32	│ ├── secret.yaml
33	│ ├── _helpers.tpl # Template helpers
34	│ ├── NOTES.txt # Post-install notes
35	│ └── tests/
36	│ └── test-connection.yaml
37	└── .helmignore # Files to ignore
38	```
39
40	## Chart.yaml
41
42	```yaml
43	apiVersion: v2
44	name: myapp
45	description: A Helm chart for MyApp
46	type: application
47	version: 1.0.0
48	appVersion: "2.0.0"
49	keywords:
50	- myapp
51	- web
52	maintainers:
53	- name: DevOps Team
54	email: devops@example.com
55	dependencies:
56	- name: postgresql
57	version: "12.x.x"
58	repository: "https://charts.bitnami.com/bitnami"
59	condition: postgresql.enabled
60	```
61
62	## values.yaml
63
64	```yaml
65	replicaCount: 2
66
67	image:
68	repository: myapp
69	tag: "" # Defaults to appVersion
70	pullPolicy: IfNotPresent
71
72	service:
73	type: ClusterIP
74	port: 80
75
76	ingress:
77	enabled: false
78	className: nginx
79	hosts:
80	- host: myapp.example.com
81	paths:
82	- path: /
83	pathType: Prefix
84	tls: []
85
86	resources:
87	limits:
88	cpu: 500m
89	memory: 256Mi
90	requests:
91	cpu: 100m
92	memory: 128Mi
93
94	postgresql:
95	enabled: true
96	auth:
97	database: myapp
98	```
99
100	## Templates
101
102	### Deployment Template
103
104	```yaml
105	# templates/deployment.yaml
106	apiVersion: apps/v1
107	kind: Deployment
108	metadata:
109	name: {{ include "myapp.fullname" . }}
110	labels:
111	{{- include "myapp.labels" . \| nindent 4 }}
112	spec:
113	replicas: {{ .Values.replicaCount }}
114	selector:
115	matchLabels:
116	{{- include "myapp.selectorLabels" . \| nindent 6 }}
117	template:
118	metadata:
119	labels:
120	{{- include "myapp.selectorLabels" . \| nindent 8 }}
121	spec:
122	containers:
123	- name: {{ .Chart.Name }}
124	image: "{{ .Values.image.repository }}:{{ .Values.image.tag \| default .Chart.AppVersion }}"
125	imagePullPolicy: {{ .Values.image.pullPolicy }}
126	ports:
127	- name: http
128	containerPort: 8080
129	{{- with .Values.resources }}
130	resources:
131	{{- toYaml . \| nindent 12 }}
132	{{- end }}
133	env:
134	- name: DATABASE_URL
135	valueFrom:
136	secretKeyRef:
137	name: {{ include "myapp.fullname" . }}-secrets
138	key: database-url
139	```
140
141	### Helper Functions
142
143	```yaml
144	# templates/_helpers.tpl
145	{{/*
146	Expand the name of the chart.
147	*/}}
148	{{- define "myapp.name" -}}
149	{{- default .Chart.Name .Values.nameOverride \| trunc 63 \| trimSuffix "-" }}
150	{{- end }}
151
152	{{/*
153	Create a default fully qualified app name.
154	*/}}
155	{{- define "myapp.fullname" -}}
156	{{- if .Values.fullnameOverride }}
157	{{- .Values.fullnameOverride \| trunc 63 \| trimSuffix "-" }}
158	{{- else }}
159	{{- $name := default .Chart.Name .Values.nameOverride }}
160	{{- printf "%s-%s" .Release.Name $name \| trunc 63 \| trimSuffix "-" }}
161	{{- end }}
162	{{- end }}
163
164	{{/*
165	Common labels
166	*/}}
167	{{- define "myapp.labels" -}}
168	helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version }}
169	{{ include "myapp.selectorLabels" . }}
170	app.kubernetes.io/version: {{ .Chart.AppVersion \| quote }}
171	app.kubernetes.io/managed-by: {{ .Release.Service }}
172	{{- end }}
173
174	{{/*
175	Selector labels
176	*/}}
177	{{- define "myapp.selectorLabels" -}}
178	app.kubernetes.io/name: {{ include "myapp.name" . }}
179	app.kubernetes.io/instance: {{ .Release.Name }}
180	{{- end }}
181	```
182
183	### Conditional Resources
184
185	```yaml
186	# templates/ingress.yaml
187	{{- if .Values.ingress.enabled -}}
188	apiVersion: networking.k8s.io/v1
189	kind: Ingress
190	metadata:
191	name: {{ include "myapp.fullname" . }}
192	labels:
193	{{- include "myapp.labels" . \| nindent 4 }}
194	{{- with .Values.ingress.annotations }}
195	annotations:
196	{{- toYaml . \| nindent 4 }}
197	{{- end }}
198	spec:
199	ingressClassName: {{ .Values.ingress.className }}
200	{{- if .Values.ingress.tls }}
201	tls:
202	{{- range .Values.ingress.tls }}
203	- hosts:
204	{{- range .hosts }}
205	- {{ . \| quote }}
206	{{- end }}
207	secretName: {{ .secretName }}
208	{{- end }}
209	{{- end }}
210	rules:
211	{{- range .Values.ingress.hosts }}

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Type