Initial commit

Update Dockerfile, docker-compose.yml, and readme.md

Dockerfile

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+FROM bitnami/minideb:latest
+
+# Preparing the folders and installing packages.
+RUN mkdir /gitbucket /java && apt-get update && apt-get -y install bash wget
+
+# Uncomment if you are using a plugin that requires Git to be installed.
+# RUN apt-get -y install git
+
+# Downloading and extracting Temurin 17.0.1+12 from Adoptium.
+RUN wget -q -O /java/openjdk.tar.gz "https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.1%2B12/OpenJDK17U-jdk_aarch64_linux_hotspot_17.0.1_12.tar.gz"
+RUN tar -xf /java/openjdk.tar.gz -C /java && mv /java/jdk-17.0.1+12 /java/jdk && rm -f /java/openjdk.tar.gz
+
+# Setting up Java's environment variables
+ENV JAVA_HOME /java/jdk
+ENV PATH $PATH:/java/jdk/bin
+
+# Downloading gitBucket 4.36.2
+RUN wget -q -O /gitbucket/gitbucket.war "https://github.com/gitbucket/gitbucket/releases/download/4.36.2/gitbucket.war" 
+
+# Setting up required GitBucket's environment variables
+ENV GITBUCKET_HOME /gitbucket/gitbucket_data
+ENV DATABASE_URL jdbc:h2:/gitbucket/gitbucket_daya/data;MVCC=true
+
+# Exposing HTTP and SSH ports
+EXPOSE 8080
+EXPOSE 8443
+
+# Running the application
+# You can remove the "-Xms128m" and "-Xmx256m" arguments if you need to support more than a couple concurent users.
+WORKDIR /gitbucket
+CMD ["java", "-Xms128m", "-Xmx256m", "-jar", "/gitbucket/gitbucket.war"]