helm-charts

Name: helm-charts
Author: mjunaidca

26stars11forks

How to install helm-charts?

mjunaidca/mjs-agent-skills/helm-charts

$npx -y skills add mjunaidca/mjs-agent-skills --skill helm-charts

Installs into the current project.

Summary

Creates and manages Helm charts for Kubernetes deployments. This skill should be used when packaging applications for Kubernetes using Helm, creating Chart.yaml, values.yaml, and templates. It covers chart structure, templating, dependencies, and deployment patterns. Use this ski

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SKILL.md

1	# Helm Charts Skill
2
3	## Overview
4
5	Helm is the package manager for Kubernetes. It packages Kubernetes manifests into reusable charts that can be versioned, shared, and deployed with customizable values.
6
7	## Core Concepts
8
9	### What is a Helm Chart?
10
11	A chart is a collection of files that describe a related set of Kubernetes resources:
12
13	```
14	mychart/
15	├── Chart.yaml # Chart metadata (name, version, dependencies)
16	├── values.yaml # Default configuration values
17	├── charts/ # Dependency charts
18	├── templates/ # Kubernetes manifest templates
19	│ ├── deployment.yaml
20	│ ├── service.yaml
21	│ ├── ingress.yaml
22	│ ├── configmap.yaml
23	│ ├── secret.yaml
24	│ ├── _helpers.tpl # Template helpers
25	│ └── NOTES.txt # Post-install notes
26	└── .helmignore # Files to ignore when packaging
27	```
28
29	### Key Files
30
31	\| File \| Purpose \|
32	\|------\|---------\|
33	\| `Chart.yaml` \| Metadata: name, version, appVersion, dependencies \|
34	\| `values.yaml` \| Default configuration values (overridable) \|
35	\| `templates/` \| Go-templated Kubernetes manifests \|
36	\| `_helpers.tpl` \| Reusable template snippets \|
37
38	## Chart.yaml Structure
39
40	```yaml
41	apiVersion: v2 # Helm 3 uses v2
42	name: taskflow # Chart name
43	description: TaskFlow Platform # Short description
44	type: application # application or library
45	version: 1.0.0 # Chart version (SemVer)
46	appVersion: "1.0.0" # Application version
47
48	# Dependencies (optional)
49	dependencies:
50	- name: postgresql
51	version: "12.x.x"
52	repository: "https://charts.bitnami.com/bitnami"
53	condition: postgresql.enabled
54	```
55
56	## values.yaml Pattern
57
58	```yaml
59	# Global settings
60	global:
61	imageRegistry: ""
62	imagePullSecrets: []
63
64	# Per-service configuration
65	api:
66	replicaCount: 1
67	image:
68	repository: taskflow/api
69	tag: "latest"
70	pullPolicy: IfNotPresent
71	service:
72	type: ClusterIP
73	port: 8000
74	resources:
75	limits:
76	cpu: 500m
77	memory: 512Mi
78	requests:
79	cpu: 100m
80	memory: 128Mi
81	env:
82	DATABASE_URL: ""
83	SSO_URL: "http://sso:3001"
84
85	# Feature flags
86	postgresql:
87	enabled: true
88	auth:
89	postgresPassword: "postgres"
90	database: "taskflow"
91	```
92
93	## Template Syntax
94
95	### Accessing Values
96
97	```yaml
98	# templates/deployment.yaml
99	apiVersion: apps/v1
100	kind: Deployment
101	metadata:
102	name: {{ include "taskflow.fullname" . }}
103	labels:
104	{{- include "taskflow.labels" . \| nindent 4 }}
105	spec:
106	replicas: {{ .Values.api.replicaCount }}
107	selector:
108	matchLabels:
109	{{- include "taskflow.selectorLabels" . \| nindent 6 }}
110	template:
111	spec:
112	containers:
113	- name: {{ .Chart.Name }}
114	image: "{{ .Values.api.image.repository }}:{{ .Values.api.image.tag }}"
115	ports:
116	- containerPort: {{ .Values.api.service.port }}
117	env:
118	- name: DATABASE_URL
119	value: {{ .Values.api.env.DATABASE_URL \| quote }}
120	```
121
122	### Helper Templates (_helpers.tpl)
123
124	```yaml
125	{{/*
126	Expand the name of the chart.
127	*/}}
128	{{- define "taskflow.name" -}}
129	{{- default .Chart.Name .Values.nameOverride \| trunc 63 \| trimSuffix "-" }}
130	{{- end }}
131
132	{{/*
133	Create a default fully qualified app name.
134	*/}}
135	{{- define "taskflow.fullname" -}}
136	{{- if .Values.fullnameOverride }}
137	{{- .Values.fullnameOverride \| trunc 63 \| trimSuffix "-" }}
138	{{- else }}
139	{{- $name := default .Chart.Name .Values.nameOverride }}
140	{{- printf "%s-%s" .Release.Name $name \| trunc 63 \| trimSuffix "-" }}
141	{{- end }}
142	{{- end }}
143
144	{{/*
145	Common labels
146	*/}}
147	{{- define "taskflow.labels" -}}
148	helm.sh/chart: {{ include "taskflow.chart" . }}
149	{{ include "taskflow.selectorLabels" . }}
150	app.kubernetes.io/managed-by: {{ .Release.Service }}
151	{{- end }}
152
153	{{/*
154	Selector labels
155	*/}}
156	{{- define "taskflow.selectorLabels" -}}
157	app.kubernetes.io/name: {{ include "taskflow.name" . }}
158	app.kubernetes.io/instance: {{ .Release.Name }}
159	{{- end }}
160	```
161
162	## Essential Commands
163
164	### Create New Chart
165	```bash
166	helm create mychart
167	```
168
169	### Install Chart
170	```bash
171	# From local directory
172	helm install my-release ./mychart
173
174	# With custom values file
175	helm install my-release ./mychart --values custom-values.yaml
176
177	# With inline value overrides
178	helm install my-release ./mychart \
179	--set api.replicaCount=3 \
180	--set api.image.tag=v2.0.0
181
182	# To specific namespace (create if needed)
183	helm install my-release ./mychart \
184	--namespace production \
185	--create-namespace
186
187	# Dry run (preview without installing)
188	helm install my-release ./mychart --dry-run --debug
189	```
190
191	### Upgrade Release
192	```bash
193	helm upgrade my-release ./mychart --values new-values.yaml
194	```
195
196	### Rollback
197	```bash
198	helm rollback my-release 1 # R

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6 picks

Type

helm-charts

26stars11forks

View on GitHub

How to install helm-charts?

mjunaidca/mjs-agent-skills/helm-charts

$npx -y skills add mjunaidca/mjs-agent-skills --skill helm-charts

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Helm Charts Skill
2
3	## Overview
4
5	Helm is the package manager for Kubernetes. It packages Kubernetes manifests into reusable charts that can be versioned, shared, and deployed with customizable values.
6
7	## Core Concepts
8
9	### What is a Helm Chart?
10
11	A chart is a collection of files that describe a related set of Kubernetes resources:
12
13	```
14	mychart/
15	├── Chart.yaml # Chart metadata (name, version, dependencies)
16	├── values.yaml # Default configuration values
17	├── charts/ # Dependency charts
18	├── templates/ # Kubernetes manifest templates
19	│ ├── deployment.yaml
20	│ ├── service.yaml
21	│ ├── ingress.yaml
22	│ ├── configmap.yaml
23	│ ├── secret.yaml
24	│ ├── _helpers.tpl # Template helpers
25	│ └── NOTES.txt # Post-install notes
26	└── .helmignore # Files to ignore when packaging
27	```
28
29	### Key Files
30
31	\| File \| Purpose \|
32	\|------\|---------\|
33	\| `Chart.yaml` \| Metadata: name, version, appVersion, dependencies \|
34	\| `values.yaml` \| Default configuration values (overridable) \|
35	\| `templates/` \| Go-templated Kubernetes manifests \|
36	\| `_helpers.tpl` \| Reusable template snippets \|
37
38	## Chart.yaml Structure
39
40	```yaml
41	apiVersion: v2 # Helm 3 uses v2
42	name: taskflow # Chart name
43	description: TaskFlow Platform # Short description
44	type: application # application or library
45	version: 1.0.0 # Chart version (SemVer)
46	appVersion: "1.0.0" # Application version
47
48	# Dependencies (optional)
49	dependencies:
50	- name: postgresql
51	version: "12.x.x"
52	repository: "https://charts.bitnami.com/bitnami"
53	condition: postgresql.enabled
54	```
55
56	## values.yaml Pattern
57
58	```yaml
59	# Global settings
60	global:
61	imageRegistry: ""
62	imagePullSecrets: []
63
64	# Per-service configuration
65	api:
66	replicaCount: 1
67	image:
68	repository: taskflow/api
69	tag: "latest"
70	pullPolicy: IfNotPresent
71	service:
72	type: ClusterIP
73	port: 8000
74	resources:
75	limits:
76	cpu: 500m
77	memory: 512Mi
78	requests:
79	cpu: 100m
80	memory: 128Mi
81	env:
82	DATABASE_URL: ""
83	SSO_URL: "http://sso:3001"
84
85	# Feature flags
86	postgresql:
87	enabled: true
88	auth:
89	postgresPassword: "postgres"
90	database: "taskflow"
91	```
92
93	## Template Syntax
94
95	### Accessing Values
96
97	```yaml
98	# templates/deployment.yaml
99	apiVersion: apps/v1
100	kind: Deployment
101	metadata:
102	name: {{ include "taskflow.fullname" . }}
103	labels:
104	{{- include "taskflow.labels" . \| nindent 4 }}
105	spec:
106	replicas: {{ .Values.api.replicaCount }}
107	selector:
108	matchLabels:
109	{{- include "taskflow.selectorLabels" . \| nindent 6 }}
110	template:
111	spec:
112	containers:
113	- name: {{ .Chart.Name }}
114	image: "{{ .Values.api.image.repository }}:{{ .Values.api.image.tag }}"
115	ports:
116	- containerPort: {{ .Values.api.service.port }}
117	env:
118	- name: DATABASE_URL
119	value: {{ .Values.api.env.DATABASE_URL \| quote }}
120	```
121
122	### Helper Templates (_helpers.tpl)
123
124	```yaml
125	{{/*
126	Expand the name of the chart.
127	*/}}
128	{{- define "taskflow.name" -}}
129	{{- default .Chart.Name .Values.nameOverride \| trunc 63 \| trimSuffix "-" }}
130	{{- end }}
131
132	{{/*
133	Create a default fully qualified app name.
134	*/}}
135	{{- define "taskflow.fullname" -}}
136	{{- if .Values.fullnameOverride }}
137	{{- .Values.fullnameOverride \| trunc 63 \| trimSuffix "-" }}
138	{{- else }}
139	{{- $name := default .Chart.Name .Values.nameOverride }}
140	{{- printf "%s-%s" .Release.Name $name \| trunc 63 \| trimSuffix "-" }}
141	{{- end }}
142	{{- end }}
143
144	{{/*
145	Common labels
146	*/}}
147	{{- define "taskflow.labels" -}}
148	helm.sh/chart: {{ include "taskflow.chart" . }}
149	{{ include "taskflow.selectorLabels" . }}
150	app.kubernetes.io/managed-by: {{ .Release.Service }}
151	{{- end }}
152
153	{{/*
154	Selector labels
155	*/}}
156	{{- define "taskflow.selectorLabels" -}}
157	app.kubernetes.io/name: {{ include "taskflow.name" . }}
158	app.kubernetes.io/instance: {{ .Release.Name }}
159	{{- end }}
160	```
161
162	## Essential Commands
163
164	### Create New Chart
165	```bash
166	helm create mychart
167	```
168
169	### Install Chart
170	```bash
171	# From local directory
172	helm install my-release ./mychart
173
174	# With custom values file
175	helm install my-release ./mychart --values custom-values.yaml
176
177	# With inline value overrides
178	helm install my-release ./mychart \
179	--set api.replicaCount=3 \
180	--set api.image.tag=v2.0.0
181
182	# To specific namespace (create if needed)
183	helm install my-release ./mychart \
184	--namespace production \
185	--create-namespace
186
187	# Dry run (preview without installing)
188	helm install my-release ./mychart --dry-run --debug
189	```
190
191	### Upgrade Release
192	```bash
193	helm upgrade my-release ./mychart --values new-values.yaml
194	```
195
196	### Rollback
197	```bash
198	helm rollback my-release 1 # R

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Type