ealen/echo-server Docker 镜像 - 轩辕镜像

Echo-Server / Docker / Kubernetes / Helm

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Read the docs : [***]

An echo server is a server that replicates the request sent by the client and sends it back.

Available:

![]([] ![]([] ![]([] ![]([] ![]([] ![]([]

• GET / POST / PUT / PATCH / DELETE
• Request (Query, Body, IPs, Host, Urls...)
• Request Headers / Response Headers
• Environment variables
• Control via Headers/Query
• Folders and Files
• Monitoring

!docker

Configuration

Use Echo-Server

!curl

I use jq for nice curl results ;)

Custom responses

Custom HTTP Status Code

bash
➜ curl -I --header 'X-ECHO-CODE: 404' localhost:8080
➜ curl -I localhost:8080/?echo_code=404

HTTP/1.1 404 Not Found

bash
➜ curl -I --header 'X-ECHO-CODE: 404-300' localhost:8080
➜ curl -I localhost:8080/?echo_code=404-300

HTTP/1.1 404 Not Found
HTTP/1.1 300 Multiple Choices

bash
➜ for i in {1..10}
➜ do
➜    curl -I localhost:8080/?echo_code=200-400-500
➜ done

HTTP/1.1 500 Internal Server Error
HTTP/1.1 400 Bad Request
HTTP/1.1 200 OK
HTTP/1.1 500 Internal Server Error
HTTP/1.1 200 OK
HTTP/1.1 500 Internal Server Error

Custom Body

bash
➜ curl --header 'X-ECHO-BODY: amazing' localhost:8080
➜ curl localhost:8080/?echo_body=amazing

"amazing"

Custom Body with Environment variable value

bash
➜ curl --header 'X-ECHO-ENV-BODY: HOSTNAME' localhost:8080
➜ curl localhost:8080/?echo_env_body=HOSTNAME

"c53a9ed79fa2"

bash
➜ for i in {1..10}
➜ do
➜    curl localhost:8080/?echo_env_body=HOSTNAME
➜ done

"c53a9ed79fa2"
"f10c3af61e40"
"c53a9ed79fa2"
"f10c3af61e40"
"c53a9ed79fa2"

Custom Headers

bash
➜ curl --header 'X-ECHO-HEADER: One:1' localhost:8080
➜ curl localhost:8080/?echo_header=One:1

HTTP/1.1 200 OK
One: 1

bash
➜ curl --header 'X-ECHO-HEADER: One:1, Two:2' localhost:8080
➜ curl "localhost:8080/?echo_header=One:1,%20Two:2"

HTTP/1.1 200 OK
One: 1
Two: 2

Custom response latency

bash
➜ curl --header 'X-ECHO-TIME: 5000' localhost:8080
➜ curl "localhost:8080/?echo_time=5000"

⏳... 5000 ms

You can change default validations with

(Latency is defined in milliseconds)

File/Folder explorer

bash
➜ curl --header 'X-ECHO-FILE: /' localhost:8080
➜ curl "localhost:8080/?echo_file=/"

["app", "bin", "etc", "usr", "var"]

Combine custom actions

bash
➜ curl --header 'X-ECHO-CODE: 401' --header 'X-ECHO-BODY: Oups' localhost:8080
➜ curl "localhost:8080/?echo_body=Oups&echo_code=401"

HTTP/1.1 401 Unauthorized
"Oups"

Change default Queries/Request commands

Read the docs

Loggers

Read the docs

Format

Seq

Full example - Documentation

ELK

Full example - Documentation

Setting up

Docker

Read the docs

bash
docker run -p 8080:80 ealen/echo-server

Docker-Compose

Read the docs

Sample

yaml
version: "3"
services:
  echo-server:
    image: ealen/echo-server
    ports:
      - 8080:80

With Seq

yaml
version: "3"
services:
  echo:
    image: ealen/echo-server
    environment: 
      PORT: 80
      LOGS__SEQ__ENABLED: "true"
      LOGS__SEQ__SERVER: "[***]"
    ports: 
      - 8080:80

  seq:
    image: datalust/seq
    environment: 
      ACCEPT_EULA: "Y"
    ports:
      - 3010:80

Kubernetes

Read the docs

bash
curl -sL [***] | kubectl apply -f -

Kubernetes with Helm

Read the docs - Artifact Hub

bash
helm repo add ealenn [***]
helm repo update
helm install --set ingress.enable=true --name echoserver ealenn/echo-server

NodeJS

Read the docs

bash
# Dependencies
npm ci
# Run with node
node ./src/webserver --port 8080
# Run with npm script
PORT=8080 npm run start

---

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

License

This project is licensed under the GNU Lesser General Public License - see the LICENSE.txt file for details.