Free, Anonymous & ephemeral Docker image registry. No need to sign-up

Docker has become an essential tool for developers to package and deploy applications. However, managing Docker images often requires dealing with registries (Dockerhub, AWS ECR, etc) that demand sign-ups and come with various limitations. What if you could use a Docker image registry that is free, anonymous, and ephemeral, without the need for any sign-up?

This guide will walk you through the process of creating, tagging, and pushing Docker images to ttl.sh, ensuring your images remain accessible temporarily.

if you have a docker image you can skip to, Generate a unique UUID section

git clone https://github.com/docker/docker-nodejs-sample

Create a Dockerfile

# Use an official Node.js runtime as a parent image

ARG NODE_VERSION=18.0.0
FROM node:${NODE_VERSION}-alpine

ENV NODE_ENV production

# Set the working directory
WORKDIR /usr/src/app

# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./

# Install dependencies
RUN npm install

USER node

# Bundle app source
COPY . .

# Expose the port your app runs on
EXPOSE 3000

# Define the command to run your app
CMD node src/index.js

Build the image

docker build -t mydockerimage .

Generate a unique UUID for image

here we are using uuidgen to generate a unique image name to reduce discoverability.you can give your image any name

 IMAGE_NAME=$(uuidgen)
echo $IMAGE_NAME

Tag the Image

docker tag mydockerimage ttl.sh/${IMAGE_NAME}:1h

Image tags provide the time limit. The default is 24 hours, and the max is 24 hours (valid time tags :5m, :1600s, :4h, :1d)

Push an Images

docker push ttl.sh/${IMAGE_NAME}:1h

Pull an Image

docker pull ttl.sh/${IMAGE_NAME}:1h

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