FROM alpine:3@sha256:c5b1261d6d3e43071626931fc004f70149baeba2c8ec672bd4f27761f8e1ad6b

ARG SOPS_VERSION
ARG KUSTOMIZE_SOPS_VERSION

# Install dependencies
RUN apk add --no-cache \
    kubectl \
    kustomize \
    age \
    git \
    bash \
    openssh \
    openrc \
    ca-certificates \
    make

# Install sops
ADD https://github.com/getsops/sops/releases/download/v${SOPS_VERSION}/sops-v3.8.1.linux.amd64 /tmp/sops
RUN mv /tmp/sops /usr/local/bin/sops && chmod +x /usr/local/bin/sops

# Install ksops
ADD https://github.com/viaduct-ai/kustomize-sops/releases/download/v${KUSTOMIZE_SOPS_VERSION}/ksops_latest_Linux_x86_64.tar.gz /tmp/ksops.tar.gz
RUN tar -xzf /tmp/ksops.tar.gz -C /tmp && mv /tmp/ksops /usr/local/bin/ksops && chmod +x /usr/local/bin/ksops

# Set up user
RUN adduser -h /home/cluster -s /bin/sh -D cluster && \
    mkdir -p /home/cluster/.ssh && \
    chown -R cluster:cluster /home/cluster && \
    chmod 0700 /home/cluster/.ssh

RUN ssh-keygen -A && \
    echo -e "PasswordAuthentication no" >> /etc/ssh/sshd_config && \
    mkdir -p /run/openrc && \
    touch /run/openrc/softlevel

USER cluster
WORKDIR /home/cluster

ENTRYPOINT ["sh", "-c", "rc-status; rc-service sshd start"]