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Description:

cdk8sredissts 0.0.7

cdk8s-redis-sts
Create a Replicated Redis Statefulset on Kubernetes, powered by the cdk8s project 🚀
Disclaimer
This construct is under heavy development, and breaking changes will be introduced very often. Please don't forget to version lock your code if you are using this construct.
Overview
cdk8s-redis-sts is a cdk8s library.
# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
from constructs import Construct
from cdk8s import App, Chart, ChartProps
from opencdk8s.cdk8s_redis_sts import MyRedis

class MyChart(Chart):
def __init__(self, scope, id, *, namespace=None, labels=None):
super().__init__(scope, id, namespace=namespace, labels=labels)
MyRedis(self, "dev",
image="redis",
namespace="databases",
volume_size="10Gi",
replicas=2,
create_storage_class=True,
volume_provisioner="kubernetes.io/aws-ebs",
storage_class_name="io1-slow",
storage_class_params={
"type": "io1",
"fs_type": "ext4",
"iops_per_gB": "10"
}
)

app = App()
MyChart(app, "dev")
app.synth()

Then the Kubernetes manifests created by cdk8s synth command will have Kubernetes resources such as Statefulset, ConfigMap and Service as follows.

manifest.k8s.yaml
allowVolumeExpansion: true
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: io1-slow
parameters:
fsType: ext4
iopsPerGB: "10"
type: io1
provisioner: kubernetes.io/aws-ebs
reclaimPolicy: Retain
---
apiVersion: v1
data:
master.conf: |-

bind 0.0.0.0
daemonize no
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
supervised no
slave.conf: |-

slaveof dev 6379
kind: ConfigMap
metadata:
name: dev-redis-conf
---
apiVersion: v1
kind: Service
metadata:
labels:
app: dev
name: dev
namespace: databases
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: dev
type: ClusterIP
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
labels:
app: dev
name: dev
namespace: databases
spec:
replicas: 2
selector:
matchLabels:
app: dev
serviceName: dev
template:
metadata:
labels:
app: dev
spec:
containers:
- command:
- bash
- -c
- |-
[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
if [[ $ordinal -eq 0 ]]; then
redis-server /mnt/redis/master.conf
else
redis-server /mnt/redis/slave.conf
fi
env: []
image: redis
name: redis
ports:
- containerPort: 6379
resources:
limits:
cpu: 400m
memory: 512Mi
requests:
cpu: 200m
memory: 256Mi
volumeMounts:
- mountPath: /data
name: dev
- mountPath: /mnt/redis/
name: dev-redis-conf
terminationGracePeriodSeconds: 10
volumes:
- configMap:
name: dev-redis-conf
name: dev-redis-conf
volumeClaimTemplates:
- metadata:
name: dev
namespace: databases
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
storageClassName: io1-slow

Installation
TypeScript
Use yarn or npm to install.
$ npm install @opencdk8s/cdk8s-redis-sts

$ yarn add @opencdk8s/cdk8s-redis-sts

Python
$ pip install cdk8s-redis-sts

Contribution

Fork (link)

Bootstrap the repo:
npx projen # generates package.json
yarn install # installs dependencies

Development scripts:

Command
Description

yarn compile
Compiles typescript => javascript

yarn watch
Watch & compile

yarn test
Run unit test & linter through jest

yarn test -u
Update jest snapshots

yarn run package
Creates a dist with packages for all languages.

yarn build
Compile + test + package

yarn bump
Bump version (with changelog) based on [conventional commits]

yarn release
Bump + push to master

Create a feature branch

Commit your changes

Rebase your local changes against the master branch

Create a new Pull Request (use conventional commits for the title please)

Licence
Apache License, Version 2.0
Author
Hunter-Thompson