ubuntu小技巧

miniPaint在线画图

What is miniPaint?
[miniPaint is an] online image editor lets you create, edit images using HTML5 technologies. No need to buy, download, install or have obsolete flash. No ads. Key features: layers, filters, HTML5, open source, Photoshop alternative.

miniPaint operates directly in the browser. You can create images, paste from the clipboard (ctrl+v) or upload from the computer (using menu or drag & drop). Nothing will be sent to any server. Everything stays in your browser. -https://github.com/viliusle/miniPaint

Installing Docker
Log into the Linux based device
Run the following commands in the terminal
# install prerequisites
sudo apt install apt-transport-https ca-certificates git curl software-properties-common gnupg-agent -y
# add docker gpg key
curl -fsSL https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | sudo apt-key add -
# add docker software repository
sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
# install docker
sudo apt install docker-ce docker-compose containerd.io -y
# enable and start docker service
sudo systemctl enable docker && sudo systemctl start docker
# add the current user to the docker group
sudo usermod -aG docker $USER
# reauthenticate for the new group membership to take effect
su - $USER
Running miniPaint
Now that Docker is installed, run the following commands to setup the miniPaint Docker container and run it
# increase fs.inotify.max_user_watches
echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf
# reload and verify the change
sudo sysctl -p
# create working directory
mkdir ~/docker/miniPaint -p
# clone source code from github
git clone https://github.com/viliusle/miniPaint.git ~/docker/miniPaint
# change directory
cd ~/docker/miniPaint
# checkout the latest tagged release
git checkout "$(git tag --sort=v:refname | tail -n1)"
# edit webpack.config.js
sudo nano webpack.config.js
Scroll to the bottom of the file and locate devServer, then add the following line inside the devServer block
allowedHosts: "all",

Press CTRL+O, Enter, CTRL+X to write the changes and exit
Continue with the following commands in the terminal
# create a dockerfile
sudo nano ./Dockerfile
Paste the following into Dockerfile
FROM node:16-alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm i
COPY . .
EXPOSE 8080
CMD ["npm", "run", "server"]

Press CTRL+O, Enter, CTRL+X to write the changes and exit
Continue with the following commands in the terminal
# build the minipaint image
docker build -t local/minipaint .
# run minipaint container
docker run -d --name=minipaint -p 8080:8080 --restart=unless-stopped local/minipaint
Open a web browser and navigate to http://DNSorIP:8080
Welcome to miniPaint running in Docker

from : https://i12bretro.github.io/tutorials/0896.html

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