Initial commit

services.old/art/Dockerfile

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+FROM public.ecr.aws/docker/library/ruby:2.7.2
+
+ARG PASSWORD
+
+RUN echo root:${PASSWORD} | chpasswd
+RUN apt-get update && apt-get install -y openssh-server curl
+RUN echo "PasswordAuthentication yes" >> /etc/ssh/sshd_config
+RUN echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
+RUN service ssh start
+
+WORKDIR /ctf/art/
+
+RUN useradd -m ctf
+RUN chown -R root:root /ctf/art/
+
+COPY Gemfile .
+COPY app.rb .
+COPY start.sh .
+
+RUN bundle install
+RUN touch /flag.txt
+
+RUN chmod +x start.sh
+CMD ./start.sh

services.old/art/Gemfile

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+source "http://rubygems.org"
+
+gem "sinatra"
+gem "slim"

services.old/art/app.rb

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+require "sinatra"
+require "slim"
+
+set :port, 8080
+set :bind, '0.0.0.0'
+set :environment, :production
+
+get '/' do
+    redirect '/art/gemastik'
+end
+
+get '/art/:word' do
+    return Slim::Template.new{ '<iframe height="100%" width="100%" frameborder="0" src=https://asciified.thelicato.io/api/v2/ascii?text=' + params[:word] + '></iframe>' }.render
+end

services.old/art/docker-compose.yml

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+version: '3'
+services:
+  art:
+    restart: always
+    build:
+      context: .
+      args:
+          - PASSWORD=root
+    ports:
+      - "10000:8080"
+      - "10022:22" 

services.old/art/start.sh

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+# run sshd
+/usr/sbin/sshd -D &
+# run the command
+su ctf -c "bundle install"
+su ctf -c "ruby /ctf/art/app.rb"