feat: add dockerfile and plugins

Dockerfile

@@ -0,0 +1,22 @@
+FROM jenkins/jenkins:lts-jdk21
+ENV JAVA_OPTS=-'Djenkins.install.runSetupWizard=false -Djava.awt.headless=true'
+
+ENV JENKINS_CI_YAML='/opt/ci.yaml'
+ENV JENKINS_PLUGIN_DIRECTORY='/usr/share/jenkins/ref/plugins'
+ENV JENKINS_PLUGIN_TXT_LOCATION='/usr/share/jenkins'
+ENV OUTPUT_DIR='/opt'
+
+# Switch to root user to install required packages
+USER root
+RUN apt update && apt install jq python3 python3-pip -y --no-install-recommends
+RUN pip3 install pyyaml --break-system-packages
+
+RUN apt purge python3 python3-pip -y
+
+COPY ./plugins.txt $JENKINS_PLUGIN_TXT_LOCATION/plugins.txt
+
+# Switch back to user jenkins
+USER jenkins
+
+# Run the jenkins-plugin-cli to import the previously exported list of plugins
+RUN jenkins-plugin-cli -f $JENKINS_PLUGIN_TXT_LOCATION/plugins.txt

plugins.txt

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+dark-theme:latest
+oidc-provider:latest