https://github.com/trendyol/sidecache

Sidecar cache for kubernetes applications.
https://github.com/trendyol/sidecache

cache couchbase golang istio kubernetes redis sidecar

Last synced: 3 months ago
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Sidecar cache for kubernetes applications.

• Host: GitHub
• URL: https://github.com/trendyol/sidecache
• Owner: Trendyol
• License: mit
• Created: 2020-08-10T12:18:08.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2025-02-03T11:18:11.000Z (8 months ago)
• Last Synced: 2025-03-22T05:33:02.203Z (7 months ago)
• Topics: cache, couchbase, golang, istio, kubernetes, redis, sidecar
• Language: Go
• Homepage:
• Size: 57.6 KB
• Stars: 47
• Watchers: 8
• Forks: 7
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# sidecache

Sidecar cache for kubernetes applications. It acts as a proxy sidecar between application and client, routes incoming requests to cache storage or application according to Istio VirtualService routing rules.

Medium article: https://medium.com/trendyol-tech/trendyol-platform-team-caching-service-to-service-communications-on-kubernetes-istio-82327589b935

[![License: MIT](https://img.shields.io/badge/License-MIT-ligthgreen.svg)](https://opensource.org/licenses/MIT)

## Table Of Contents

- [Istio Configuration](#istio-configuration-for-routing-http-requests-to-sidecar-container)

- [Environment Variables](#environment-variables)

## Istio Configuration for Routing Http Requests to Sidecar Container

Below VirtualService is responsible for routing all get requests to port 9191 on your pod, other http requests goes to port 8080.

```

apiVersion: networking.istio.io/v1beta1

kind: VirtualService

metadata:

  name: foo

spec:

  gateways:

  - foo-gateway

  hosts:

  - foo

  http:

  - match:

    - method:

        exact: GET

    route:

    - destination:

        host: foo

        port:

          number: 9191

  - route:

    - destination:

        host: foo

        port:

          number: 8080

```

## Environment Variables

Environment variables for sidecar container.

- **MAIN_CONTAINER_PORT**: The port of main application to proxy.

- **COUCHBASE_HOST**: Couchbase host addr.

- **COUCHBASE_USERNAME**: Couchbase username.

- **COUCHBASE_PASSWORD**: Couchbase password.

- **BUCKET_NAME**: Couchbase cache bucket name.

- **CACHE_KEY_PREFIX**: Cache key prefix to prevent url conflicts between different applications.

- **SIDE_CACHE_PORT**: Sidecar container port to listen.