Dockerfile.nullclaw-base

# Base image for nullclaw agents (test stub).
# Usage: docker build -t nullclaw:latest -f Dockerfile.nullclaw-base .
#
# NullClaw is a fictional test runtime. This stub provides a minimal HTTP
# health endpoint on :3000 and cron subcommands for driver integration testing.

FROM alpine:3.20

RUN apk add --no-cache curl jq tini python3

# Stub binary: health endpoint + cron commands + agent invocation
COPY <<'STUB' /usr/local/bin/nullclaw
#!/bin/sh
set -eu
cmd="${1:-run}"
case "$cmd" in
  run)
    mkdir -p /tmp/nullclaw-spike
    printf "ok\n" >/tmp/nullclaw-spike/health
    exec python3 -m http.server 3000 --directory /tmp/nullclaw-spike
    ;;
  cron)
    sub="${2:-}"
    case "$sub" in
      list)
        jobs_file=/tmp/nullclaw-spike/cron.jobs
        count=0
        if [ -f "$jobs_file" ]; then count="$(wc -l <"$jobs_file" | tr -d ' ')"; fi
        echo "info(cron): Scheduled jobs (${count}):"
        if [ -f "$jobs_file" ]; then
          i=0
          while IFS="$(printf '\t')" read -r expr command; do
            [ -n "${expr:-}" ] || continue
            i=$((i + 1))
            echo "info(cron): - job-${i} | ${expr} | next=0 | status=n/a cmd: ${command}"
          done <"$jobs_file"
        fi
        ;;
      add)
        [ "$#" -ge 4 ] || { echo "error: usage: nullclaw cron add '<schedule>' '<command>'" >&2; exit 2; }
        mkdir -p /tmp/nullclaw-spike
        printf "%s\t%s\n" "$3" "$4" >>/tmp/nullclaw-spike/cron.jobs
        echo "info(cron): added schedule '$3'"
        ;;
      *) echo "error: unknown nullclaw cron subcommand '$sub'" >&2; exit 2 ;;
    esac
    ;;
  agent)
    [ "${2:-}" = "-m" ] && { echo "nullclaw agent: ${3:-}"; exit 0; }
    echo "error: usage: nullclaw agent -m <message>" >&2; exit 2
    ;;
  *) echo "error: unknown nullclaw subcommand '$cmd'" >&2; exit 2 ;;
esac
STUB
RUN chmod +x /usr/local/bin/nullclaw

COPY discord-responder.sh /usr/local/bin/discord-responder
RUN chmod +x /usr/local/bin/discord-responder

# Entrypoint wrapper: start Discord responder in background, then run main process
COPY <<'WRAPPER' /usr/local/bin/nullclaw-entrypoint
#!/bin/sh
/usr/local/bin/discord-responder &
exec nullclaw run
WRAPPER
RUN chmod +x /usr/local/bin/nullclaw-entrypoint

EXPOSE 3000

ENTRYPOINT ["/sbin/tini", "--"]
CMD ["nullclaw-entrypoint"]