FROM jenkins/jenkins:lts-jdk17

USER root

# Install Docker CLI
RUN apt-get update && \
    apt-get install -y \
        ca-certificates \
        curl \
        gnupg \
        lsb-release && \
    mkdir -p /etc/apt/keyrings && \
    curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg && \
    echo \
      "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
      $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null && \
    apt-get update && \
    apt-get install -y docker-ce-cli && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Install kubectl
RUN curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" && \
    chmod +x kubectl && \
    mv kubectl /usr/local/bin/

# Install git (if not already)
RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*

USER jenkins

# Pre-install useful plugins
RUN jenkins-plugin-cli --plugins \
    git \
    docker-workflow \
    pipeline-stage-view \
    kubernetes \
    configuration-as-code \
    job-dsl \
    workflow-aggregator \
    gitea