Skip to content

add helm chart #12

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
kont-noor wants to merge 6 commits into
base: master
Choose a base branch
from
Open

add helm chart #12

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
962274e
add helm chart
kont-noor May 25, 2025
4c6f39f
fix local PVC provisioner
kont-noor May 25, 2025
c353e7b
fix mongo connection
kont-noor May 26, 2025
369f2b4
setup mongo config
kont-noor May 26, 2025
f51bc30
add prometeus
kont-noor May 26, 2025
4efff4e
enable prometheus metrics
kont-noor May 26, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
47 changes: 46 additions & 1 deletion README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -129,4 +129,49 @@ Which technology stack do you recommend?

1. Node.js + redis, rack + redis, rails3 + redis, or anything else? How many dynos do you estimate we'll need to meet our performance requirements? (it's ok if you don't know, we're just wondering if you have experience with apps of such high loads)
2. Which database?
3. Where do you store the state table of connected users? (for performance reasons, we suggest keeping this in memory only) How do you make sure that it's shared across multiple dynos?
3. Where do you store the state table of connected users? (for performance reasons, we suggest keeping this in memory only) How do you make sure that it's shared across multiple dynos?

### Local Setup

#### Overmind

* It does not use dotenv setup so set the vars from `.env`
* Setup Mongo
* Run `overmind start`

#### Docker compose

Just run

```bash
docker compose build
docker compose up
```

### K8s

#### Local

Setup Mongo

```bash
helm upgrade --install mongodb bitnami/mongodb -f ./infra/charts/mongodb/values.yaml --namespace connection-request-server --create-namespace
```

Setup Service

```bash
helm upgrade --install server ./infra/charts/server --namespace connection-request-server
```

To forward port to host machine (testing purpose) run the following

```bash
kubectl port-forward service/server-server 8080:80 -n connection-request-server
```

Setup Prometeus

```bash
helm upgrade --install prometheus prometheus-community/kube-prometheus-stack -f ./infra/charts/prometeus/values.yaml --namespace monitoring --create-namespace
```
19 changes: 19 additions & 0 deletions infra/charts/mongodb/values.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
auth:
enabled: true
rootUser: mongo
rootPassword: mongo
usernames:
- appuser
passwords:
- apppass
databases:
- connections

architecture: standalone

persistence:
enabled: true
size: 8Gi
storageClass: local-path

replicaCount: 2
16 changes: 16 additions & 0 deletions infra/charts/prometeus/values.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
prometheus:
prometheusSpec:
serviceMonitorSelector:
matchLabels:
release: prometheus
podMonitorSelector: {}
ruleSelector:
matchLabels:
release: prometheus

alertmanager:
enabled: true

grafana:
enabled: true
adminPassword: crsAdmin
8 changes: 8 additions & 0 deletions infra/charts/server/Chart.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
apiVersion: v2
name: server
version: 0.1.0
description: A Helm chart for the connection management server

dependencies: []

type: application
18 changes: 18 additions & 0 deletions infra/charts/server/templates/_helpers.tpl
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
{{/*
Expand the name of the chart.
*/}}
{{- define "server.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
{{- end }}

{{/*
Create a fully qualified name.
*/}}
{{- define "server.fullname" -}}
{{- if .Values.fullnameOverride }}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- $name := default .Chart.Name .Values.nameOverride }}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
{{- end }}
{{- end }}
56 changes: 56 additions & 0 deletions infra/charts/server/templates/deployment.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "server.fullname" . }}
labels:
app: {{ include "server.name" . }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app: {{ include "server.name" . }}
template:
metadata:
labels:
app: {{ include "server.name" . }}
spec:
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
ports:
- containerPort: {{ .Values.server.port }}
env:
- name: PROMETHEUS_ENABLED
value: {{ .Values.prometheus.enabled | quote }}
- name: SERVER_HOSTNAME
value: {{ .Values.server.hostname | quote }}
- name: SERVER_PORT
value: {{ .Values.server.port | quote }}
- name: MONGO_URL
valueFrom:
secretKeyRef:
name: {{ include "server.fullname" . }}-secret
key: url
- name: MONGO_DB
valueFrom:
secretKeyRef:
name: {{ include "server.fullname" . }}-secret
key: dbname
- name: MONGO_COLLECTION
valueFrom:
secretKeyRef:
name: {{ include "server.fullname" . }}-secret
key: collectionname
readinessProbe:
httpGet:
path: /health
port: {{ .Values.server.port }}
initialDelaySeconds: 5
periodSeconds: 10
livenessProbe:
httpGet:
path: /health
port: {{ .Values.server.port }}
initialDelaySeconds: 15
periodSeconds: 20
21 changes: 21 additions & 0 deletions infra/charts/server/templates/hpa.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
{{- if .Values.autoscaling.enabled }}
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: {{ include "server.fullname" . }}
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: {{ include "server.fullname" . }}
minReplicas: {{ .Values.autoscaling.minReplicas }}
maxReplicas: {{ .Values.autoscaling.maxReplicas }}
metrics:
- type: Pods
pods:
metric:
name: request_latency_seconds
target:
type: AverageValue
averageValue: {{ .Values.autoscaling.targetLatency }}
{{- end }}
30 changes: 30 additions & 0 deletions infra/charts/server/templates/ingress.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
{{- if .Values.ingress.enabled }}
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: {{ include "server.fullname" . }}
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
{{- if .Values.ingress.certManager }}
cert-manager.io/cluster-issuer: {{ .Values.ingress.clusterIssuer }}
{{- end }}
spec:
ingressClassName: nginx
rules:
- host: {{ .Values.ingress.host }}
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: {{ include "server.fullname" . }}
port:
number: {{ .Values.service.port }}
{{- if .Values.ingress.tls }}
tls:
- hosts:
- {{ .Values.ingress.host }}
secretName: {{ .Values.ingress.tlsSecret }}
{{- end }}
{{- end }}
20 changes: 20 additions & 0 deletions infra/charts/server/templates/prometheus-rules.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: {{ include "server.fullname" . }}-rules
labels:
release: prometheus
spec:
groups:
- name: {{ include "server.fullname" . }}.rules
rules:
- record: job:request_latency_seconds:avg
expr: avg(rate(request_latency_seconds_sum[1m])) by (job)
- alert: HighRequestLatency
expr: avg(rate(request_latency_seconds_sum[1m])) > 0.3
for: 1m
labels:
severity: warning
annotations:
summary: "High request latency detected (>300ms)"
description: "Request latency is above threshold for more than 1 minute."
9 changes: 9 additions & 0 deletions infra/charts/server/templates/secret.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
apiVersion: v1
kind: Secret
metadata:
name: {{ include "server.fullname" . }}-secret
stringData:
url: {{ .Values.mongo.url }}
dbname: {{ .Values.mongo.dbname }}
collectionname: {{ .Values.mongo.collectionname }}
type: Opaque
13 changes: 13 additions & 0 deletions infra/charts/server/templates/service.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
apiVersion: v1
kind: Service
metadata:
name: {{ include "server.fullname" . }}
spec:
type: {{ .Values.service.type }}
selector:
app: {{ include "server.name" . }}
ports:
- port: {{ .Values.service.port }}
targetPort: {{ .Values.server.port }}
protocol: TCP
name: http
19 changes: 19 additions & 0 deletions infra/charts/server/templates/servicemonitor.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
{{- if .Values.prometheus.enabled }}
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: {{ include "server.fullname" . }}-servicemonitor
labels:
release: prometheus
spec:
selector:
matchLabels:
app: {{ include "server.name" . }}
endpoints:
- port: http
path: /metrics
interval: {{ .Values.prometheus.serviceMonitor.interval }}
namespaceSelector:
matchNames:
- {{ .Release.Namespace }}
{{- end }}
35 changes: 35 additions & 0 deletions infra/charts/server/values.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
replicaCount: 1

image:
repository: ghcr.io/kont-noor/server
tag: latest
pullPolicy: IfNotPresent

service:
type: LoadBalancer
port: 80

server:
port: 3000
hostname: 0.0.0.0

mongo:
url: mongodb://appuser:apppass@mongodb:27017/?authSource=connections
dbname: connections
collectionname: connections

resources: {}

autoscaling:
enabled: true
minReplicas: 1
maxReplicas: 10
targetLatency: 200m

prometheus:
enabled: true
serviceMonitor:
interval: 15s

ingress:
enabled: false